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GSO IEC 60364-7-710:2024
GSO - Cover page
Gulf Foreword
IEC - Cover page
FOREWORD
INTRODUCTION
710 Medical locations
 710.1 Scope
 710.2 Normative references
 710.3 Terms and definitions
 710.30 Assessment of general characteristics
 710.31 Purposes, supplies and structure
  710.312.2 Types of system earthing
 710.313 Supplies
  710.313.1 General
 710.314 Division of installation
 710.41 Protection for safety – Protection against electric shock
  710.410.3 General requirements
 710.411 Protective measure: automatic disconnection of supply
  710.411.3 Requirements for fault protection
  710.411.4 TN system
  710.411.5 TT system
  710.411.6 IT system
 710.414 Protective measure: extra-low-voltage provided by SELV and PELV
  710.414.1 General
  710.414.4 Requirements for SELV and PELV circuits
 710.415 Additional protection
  710.415.2 Additional protection: supplementary protective equipotential bonding
 710.42 Protection for safety – Protection against thermal effects
 710.421 Protection against fire caused by electrical equipment
  710.421.1 General requirements
 710.44 Protection for safety – Protection against voltage disturbances and electromagnetic disturbances
 710.444 Measures against electromagnetic influences
  710.444.1 General
 710.51 Selection and erection of electrical equipment – Common rules
  710.51.101 Distribution boards
  710.51.102 Electrical operating areas
 710.512 Operational conditions and external influences
  710.512.1 Operational conditions
  710.512.2 External influences
 710.514 Identification
  710.514.3 Identification of neutral and protective conductors
  710.514.5 Diagrams
 710.52 Selection and erection of electrical equipment – Wiring systems
  710.520.4 General
 710.53 Selection and erection of electrical equipment – Devices for protection for safety, isolation, switching, control and monitoring
 710.531 Equipment for protection against electric shock
  710.531.2 Devices for automatic disconnection of supply
  710.531.7 Monitoring devices
 710.535 Co-ordination of protective devices
  710.535.1 Selectivity between overcurrent protective devices
 710.536 Isolation and switching
  710.536.101 Automatic transfer switching or automatic change-over equipment
 710.537 Monitoring
  710.537.1 General
 710.55 Selection and erection of electrical equipment – Other equipment
  710.55.101 Socket-outlets in medical locations of group 2
 710.559 Luminaires and lighting installations
  710.559.101 Lighting circuits
 710.56 Selection and erection of electrical equipment – Safety services
  710.560.4 Classification
  710.560.5 General
  710.560.6 Electrical sources for safety services
  710.560.9 Emergency lighting applications
 710.6 Verification
  710.6.4 Initial verification
  710.6.5 Periodic verification
Annex A (informative) Examples of allocation of group numbers and classification for an electric supply system for safety services of medical locations
Annex B (informative) Guidance concerning electromagnetic interferences (EMI)
Annex C (informative) List of notes concerning certain countries (exceptions)
Bibliography
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Gulf StandardGSO IEC 60364-7-710:2024
Gulf StandardGSO IEC 60364-7-710:2024
GSO IEC 60364-7-710:2024Gulf Standard
GSO IEC 60364-7-710:2024
IEC 60364-7-710:2021
مواصفة قياسية خليجية
التركيبات الكهربائية ذات الجهد المنخفض - الجزء 7-710: متطلبات المنشآت أو المواقع الخاصة - المواقع الطبية
Gulf Standard
Low-voltage electrical installations - Part 7-710: Requirements for special installations or locations - Medical locations
ICS:
29.020 ; 91.140.50

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Gulf StandardGSO IEC 60364-7-710:2024
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GSO IEC 60364-7-710:2024Gulf Standard

Gulf Foreword

GCC Standardization Organization (GSO) is a regional organization which consists of the national standardization bodies of GCC member states. One of GSO main functions is to issue gulf standards and technical regulations through specialized technical committees.
GSO Technical Council in its meeting number (57) held on 20/07/1445 H, which corresponds to 31/01/2024, has approved the update of Gulf Standard GSO IEC 60364-7-710:2024 titled "Low-voltage electrical installations - Part 7-710: Requirements for special installations or locations - Medical locations" in English language which was studied and adopted by endorsement from International Electrotechnical Commission Standard IEC 60364-7-710:2021 through the technical program of GSO Technical Committee for Electrical and Electronic Products (TC03) in KUWAIT schedule . This document will cancel and replace the Gulf Standard GSO IEC 60364-7-710:2015.
تقديم خليجي
هيئة التقييس لدول مجلس التعاون لدول الخليج العربية هيئة إقليمية تضم في عضويتها أجهزة التقييس الوطنية في الدول الأعضاء ، ومن مهام الهيئة إعداد المواصفات القياسية واللوائح الفنية الخليجية بواسطة لجان فنية متخصصة.
قرر المجلس الفني لهيئة التقييس لدول مجلس التعاون لدول الخليج العربية في الاجتماع الـ (57) بتاريخ 1445/07/20 هـ ،الموافق 2024/01/31م اعتماد تحديث المواصفة القياسية الخليجية رقم GSO IEC 60364-7-710:2024 وعنوانها "التركيبات الكهربائية ذات الجهد المنخفض - الجزء 7-710: متطلبات المنشآت أو المواقع الخاصة - المواقع الطبية" باللغة الانجليزية التي تم دراستها وتبنيها بالمصادقة عن اللجنة الدولية الكهروتقنية رقم IEC 60364-7-710:2021 ضمن برنامج عمل اللجنة الفنية الخليجية للمواصفات الكهربائية والإلكترونية (TC03) المدرجة في خطة دولة الكويت . على أن تلغي وتحل محل المواصفة القياسية رقم GSO IEC 60364-7-710:2015 .
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Gulf StandardGSO IEC 60364-7-710:2024
Gulf StandardGSO IEC 60364-7-710:2024
Gulf StandardGSO IEC 60364-7-710:2024
GSO IEC 60364-7-710:2024Gulf Standard
IEC 60364-7-710

INTERNATIONAL

STANDARD

Edition 2.0  2021-05
Low-voltage electrical installations –
Part 7-710: Requirements for special installations or locations – Medical locations
IEC 60364-7-710:2021 ED2
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Gulf StandardGSO IEC 60364-7-710:2024
Gulf StandardGSO IEC 60364-7-710:2024
Gulf StandardGSO IEC 60364-7-710:2024
GSO IEC 60364-7-710:2024Gulf Standard
THIS PUBLICATION IS COPYRIGHT PROTECTEDCopyright © 2021 IEC, Geneva, Switzerland
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from either IEC or IEC's member National Committee in the country of the requester. If you have any questions about IEC copyright or have an enquiry about obtaining additional rights to this publication, please contact the address below or your local IEC member National Committee for further information.
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Gulf StandardGSO IEC 60364-7-710:2024
Gulf StandardGSO IEC 60364-7-710:2024
Gulf StandardGSO IEC 60364-7-710:2024
GSO IEC 60364-7-710:2024Gulf Standard
IEC 60364-7-710

INTERNATIONAL

STANDARD

Edition 2.0  2021-05
Low-voltage electrical installations –
Part 7-710: Requirements for special installations or locations – Medical locations

INTERNATIONAL

ELECTROTECHNCIAL

COMMISSION


ICS 29.020, 91.140.50ISBN 9782832295922Warning! Make sure that you obtained this publication from an authorized distributor.© Registered trademark of the International Electrotechnical Commission
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Gulf StandardGSO IEC 60364-7-710:2024
Gulf StandardGSO IEC 60364-7-710:2024
Gulf StandardGSO IEC 60364-7-710:2024
GSO IEC 60364-7-710:2024Gulf Standard
CONTENTS
INTERNATIONAL ELECTROTECHNICAL COMMISSION
International StandardIEC 60364-7-710:2021 ED2
Low-voltage electrical installations - Part 7-710: Requirements for special installations or locations - Medical locations

FOREWORD

1)
The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising all national electrotechnical committees (IEC National Committees). The object of IEC is to promote international co-operation on all questions concerning standardization in the electrical and electronic fields. To this end and in addition to other activities, IEC publishes International Standards, Technical Specifications, Technical Reports, Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC Publication(s)”). Their preparation is entrusted to technical committees; any IEC National Committee interested in the subject dealt with may participate in this preparatory work. International, governmental and non-governmental organizations liaising with the IEC also participate in this preparation. IEC collaborates closely with the International Organization for Standardization (ISO) in accordance with conditions determined by agreement between the two organizations.
2)
The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international consensus of opinion on the relevant subjects since each technical committee has representation from all interested IEC National Committees.
3)
IEC Publications have the form of recommendations for international use and are accepted by IEC National Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any misinterpretation by any end user.
4)
In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications transparently to the maximum extent possible in their national and regional publications. Any divergence between any IEC Publication and the corresponding national or regional publication shall be clearly indicated in the latter.
5)
IEC itself does not provide any attestation of conformity. Independent certification bodies provide conformity assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any services carried out by independent certification bodies.
6)
All users should ensure that they have the latest edition of this publication.
7)
No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and members of its technical committees and IEC National Committees for any personal injury, property damage or other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC Publications.
8)
Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is indispensable for the correct application of this publication.
9)
Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of patent rights. IEC shall not be held responsible for identifying any or all such patent rights.
IEC 60364‑7‑710 has been prepared by IEC technical committee 64: Electrical installations and protection against electric shock. It is an International Standard.
This second edition cancels and replaces the first edition published in 2002. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous edition:
a)
the scope provides improved information to the application of this document;
b)
some terms and definitions have been revised;
c)
the validity of the respective parts of the IEC 60364 series has been verified and clauses updated;
d)
Clause 710.30 has been extended;
e)
Clause 710.41 has been updated;
f)
Clause 710.413 has been renumbered as Clause 710.411;
g)
in 710.411 insulation fault location systems have been added;
h)
Clause 710.421 has been extended to include arc fault detection devices;
i)
Clause 710.44 has been added;
j)
Clause 710.51 has been updated and now covers distribution boards and electrical operating areas;
k)
Clause 710.514, has been extended and includes separate subclauses on diagrams, documentation and operating instructions;
l)
Subclauses 710.531 to 710.537 have been added;
m)
Clause 710.55 has been updated;
n)
Clause 710.56 has been added;
o)
Clause 710.6, Verification, has been revised;
p)
Annex A was deleted, and the contents integrated into 710.560.4;
q)
former Annex B is now Annex A and has been updated;
r)
an informative Annex B on guidance concerning electromagnetic interferences (EMI) in installations of buildings has been added.
The text of this International Standard is based on the following documents:
Draft Report on voting
64/2480/FDIS 64/2482/RVD
Full information on the voting for its approval can be found in the report on voting indicated in the above table.
The language used for the development of this International Standard is English.
This document was drafted in accordance with ISO/IEC Directives, Part 2, and developed in accordance with ISO/IEC Directives, Part 1 and ISO/IEC Directives, IEC Supplement, available at www.iec.ch/members_experts/refdocs. The main document types developed by IEC are described in greater detail at www.iec.ch/standardsdev/publications.
A list of all parts in the IEC 60364 series, published under the general title Low-voltage electrical installations, can be found on the IEC website.
The reader's attention is drawn to the fact that Annex C lists all of the "in-some-country" clauses on differing practices of a less permanent nature relating to the subject of this document.
The committee has decided that the contents of this document will remain unchanged until the stability date indicated on the IEC website under "http://webstore.iec.ch" in the data related to the specific document. At this date, the document will be
•
reconfirmed,
•
withdrawn,
•
replaced by a revised edition, or
•
amended.

INTRODUCTION

For the purpose of this part of IEC 60364 (IEC 60364‑7‑710) the requirements of the general Parts 1 to 6 and Part 8 of IEC 60364 apply.
The IEC 60364‑7‑7XX parts of IEC 60364 contain particular requirements for special installations or locations which are based on the requirements of the general parts of IEC 60364 (IEC 60364‑1 to IEC 60364‑6 and IEC 60364‑8). These IEC 60364‑7‑7XX parts are considered in conjunction with the requirements of the general parts.
The particular requirements of this part of IEC 60364 supplement, modify or replace certain of the requirements of the general parts of IEC 60364 being valid at the time of publication of this part. The absence of reference to the exclusion of a part or a clause of a general part means that the corresponding clauses of the general part are applicable (undated references).
Requirements of other 7XX parts being relevant for installations covered by this part also apply. This part may therefore also supplement, modify or replace certain of these requirements valid at the time of publication of this part.
The clause numbering of this part follows the pattern and corresponding references of IEC 60364. The numbers following the particular number of this part are those of the corresponding parts, or clauses of the other parts of the IEC 60364 series, valid at the time of publication of this part, as indicated in the normative references of this document (dated references).
If requirements or explanations additional to those of the other parts of the IEC 60364 series are needed, the numbering of such items appears as 710.101, 710.102, 710.103, etc.
In the case where new or amended general parts with modified numbering were published after this part was issued, the clause numbers referring to a general part in this Part 710 may no longer align with the latest edition of the general part. Dated references should be observed.
The particular requirements of this document apply to the electrical installations in medical locations.
The clause numbering following 710 are those of the corresponding parts or clauses of IEC 60364. The absence of reference to a part or a clause means that all parts of IEC 60364 are applicable.
In medical locations patients are likely to be subjected to the application of medical electrical (ME) equipment. Measures for the safety of patients and medical staff need to be enhanced due to:
i)
the reduction in body resistance, since the skin is often cut or broken;
ii)
the risk associated with loss of supply, especially to life supporting equipment;
iii)
the increased risk of electric shock due to the presence of liquids, such as blood, saline and water (e.g. for irrigation).
Items (i) and (ii) affect the patient, whereas item (iii) affects the patient and medical staff.
For every activity and function in a medical location, the particular requirements for safety, including protection against electric shock and continuity of supply, need to be considered.
Safety can be achieved by the application of this document and the safe operation and maintenance of ME equipment.
Variations of this document to further enhance safety and reliability are acceptable.
Annex C provides a statement about the inclusion of text concerning particular conditions that are existing in certain countries and that state exceptions to the respective subclauses.
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Gulf StandardGSO IEC 60364-7-710:2024
Gulf StandardGSO IEC 60364-7-710:2024
Gulf StandardGSO IEC 60364-7-710:2024
GSO IEC 60364-7-710:2024Gulf Standard
International StandardIEC 60364-7-710:2021 ED2
Low-voltage electrical installations - Part 7-710: Requirements for special installations or locations - Medical locations

710Medical locations

710.1Scope

The particular requirements of this part of IEC 60364 apply to electrical installations in medical locations so as to provide safety of patients and medical staff. These requirements refer to:
–
hospitals and clinics or equivalent institutions (including equivalent transportable and mobile locations);
which, subject to assessment (710.30), can also include:
–
sanatoriums and health clinics;
–
dedicated locations in homes for senior citizens and aged care homes, where patients receive medical care;
–
medical centres, outpatients' clinics and departments, casualty wards;
–
other outpatients' institutions (industrial, sports and others);
–
medical and dental practices;
–
dedicated medical rooms in the workplace;
–
other locations where medical electrical equipment is used;
–
veterinary clinics;
–
rooms in existing installations where a change of utilization for medical applications occur.
This list is not exhaustive.
The requirements of this document do not apply to ME equipment or ME systems.
NOTE 1ME equipment and ME systems are covered by IEC 60601 (all parts).
NOTE 2In the USA, the requirements of NFPA 70®, National Electrical Code® in general and specifically article 517 (Healthcare Facilities) apply.

710.2Normative references

The following documents are referred to in the text in such a way that some or all of their content constitutes requirements of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
IEC 60050–826, International Electrotechnical Vocabulary – Part 826: Electrical installations (available at http://www.electropedia.org)
IEC 60364‑1:2005, Low-voltage electrical installations – Part 1: Fundamental principles, assessment of general characteristics, definitions
IEC 60364‑4–41:2005, Low-voltage electrical installations – Part 4-41: Protection for safety – Protection against electric shock
IEC 60364‑4–41:2005/AMD1:2017
IEC 60364‑4–42:2010, Low-voltage electrical installations – Part 4-42: Protection for safety – Protection against thermal effects
IEC 60364‑4–42:2010/AMD1:2014
IEC 60364‑4–44:2007, Low-voltage electrical installations – Part 4-44: Protection for safety – Protection against voltage disturbances and electromagnetic disturbances
IEC 60364‑4–44:2007/AMD1:2015
IEC 60364-4-44:2007/AMD2:2018
IEC 60364‑5–51:2005, Electrical installations of buildings – Part 5-51: Selection and erection of electrical equipment – Common rules
IEC 60364‑5–52:2009, Low-voltage electrical installations – Part 5-52: Selection and erection of electrical equipment – Wiring systems
IEC 60364‑5–53:2019, Low-voltage electrical installations – Part 5-53: Selection and erection of electrical equipment – Devices for protection for safety, isolation, switching, control and monitoring
IEC 60364‑5–53:2019/AMD1:2020
IEC 60364‑5–56:2018, Low-voltage electrical installations – Part 5-56: Selection and erection of electrical equipment – Safety services
IEC 60364‑6:2016, Low voltage electrical installations – Part 6: Verification
IEC 60947–6–1, Low-voltage switchgear and controlgear – Part 6-1: Multiple function equipment – Transfer switching equipment
IEC 61439 (all parts), Low-voltage switchgear and controlgear assemblies
IEC 61557–8:2014, Electrical safety in low voltage distribution systems up to 1 000 V a.c. and 1 500 V d.c. – Equipment for testing, measuring or monitoring of protective measures – Part 8: Insulation monitoring devices for IT systems
IEC 61557–9:2014, Electrical safety in low voltage distribution systems up to 1 000 V a.c. and 1 500 V d.c. – Equipment for testing, measuring or monitoring of protective measures – Part 9: Equipment for insulation fault location in IT systems
IEC 61558–2–15, Safety of transformers, reactors, power supply units and combinations thereof – Part 2-15: Particular requirements and tests for isolating transformers for the supply of medical locations

710.3Terms and definitions

For the purposes of this document, the terms and definitions given in IEC 60050–826, IEC 60364‑1 and the following apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
•
IEC Electropedia: available at http://www.electropedia.org/
•
ISO Online browsing platform: available at http://www.iso.org/obp
710.3.1
medical location
location intended for purposes of diagnosis, treatment, monitoring and care of patients
710.3.2
patient
living being (person or animal) undergoing a medical, surgical or dental procedure
[SOURCE: IEC 60601‑1:2005, 3.76, modified – The note has been deleted.]
710.3.3
medical electrical equipment
ME equipment
electrical equipment having an applied part or transferring energy to or from the patient or detecting such energy transfer to or from the patient and which is
a)
provided with not more than one connection to a particular supply mains, and
b)
intended by its manufacturer to be used in the diagnosis, treatment, or monitoring of a patient, or for compensation or alleviation of disease, injury or disability
Note 1 to entry: ME equipment includes those accessories as defined by the manufacturer that are necessary to enable the normal use of the ME equipment.
[SOURCE: IEC 60601‑1:2005, 3.63, modified – Notes 2, 3, 4 and 5 have been deleted.]
710.3.4
applied part
part of ME equipment that in normal use necessarily comes into physical contact with the patient for ME equipment or an ME system to perform its function
[SOURCE: IEC 60601‑1:2005, 3.8, modified – The notes have been deleted.]
710.3.5
medical electrical system
ME system
combination, as specified by its manufacturer, of items of equipment, at least one of which is ME equipment to be inter-connected by functional connection or by use of a multiple socket-outlet
[SOURCE: IEC 60601‑1:2005, 3.64, modified – The note has been deleted.]
710.3.6
patient environment
any volume in which intentional or unintentional contact can occur between a patient and parts of the ME equipment or ME system or between a patient and other persons touching parts of the ME equipment or ME system
Note 1 to entry: For illustration see Figure 710.1.
Note 2 to entry: This applies where the patient's position is pre-determined.
[SOURCE: IEC 60601‑1:2005, 3.79, modified – The notes have been added.]
710.3.7
group 0
medical location where ME equipment or ME systems are not intended to be used
710.3.8
group 1
medical location where ME equipment or ME systems are intended to be used externally or invasively on any part of the patient and where discontinuity of the electrical supply, such as protection against electric shock, does not represent a risk to the safety of the patient
710.3.9
group 2
medical location where ME equipment or ME systems are intended to be used intrusively, externally or invasively to any part of the patient and where discontinuity of the electrical supply, such as protection against electric shock, represents a risk to the safety of the patient
710.3.10
medical IT system
electric IT system fulfilling all specific additional requirements of group 2 medical locations
Note 1 to entry: All specific requirements for medical locations of group 2 are reflected.
710.3.11
main distribution board
distribution board that fulfils all the functions of a main electrical distribution for the supplied area assigned to it and where the voltage is measured for operating the electric supply system for safety services
710.3.12
electric source for safety services
electric source intended to be used as part of an electric supply system for safety services
[SOURCE: IEC 60050–826:2004, 826-10-05]
710.3.13
medical insulation monitoring device
MED-IMD
specific insulation monitoring device (IMD) dedicated to monitor medical IT systems
[SOURCE: IEC 61557–8:2014, 3.1.22, modified – "of a group 2 medical location" has been deleted]
710.3.14
insulation fault location system
IFLS
device or combination of devices used for insulation fault location in IT systems, where the insulation fault location system is used in addition to an insulation monitoring device and is used to locate insulation faults
Note 1 to entry: An IFLS injects a locating current between the electrical system and earth.
[SOURCE: IEC 61557–9:2014, 3.1.1]
710.3.15
uninterruptible power system
UPS
combination of convertors, switches and energy storage devices (such as batteries), constituting a power system for maintaining continuity of load power in case of input power failure
Note 1 to entry: Continuity of load power occurs when voltage and frequency are within rated steady-state and transient tolerance bands, and with distortion and interruptions within the limits specified for the output port. Input power failure occurs when voltage and frequency are outside rated steady-state and transient tolerance bands, or with distortion or interruptions outside the limits specified for the UPS.
[SOURCE: IEC 62040–1:2017, 3.101]

710.30Assessment of general characteristics

Add:
The designer, in conjunction with medical staff and the person(s) responsible for medical safety, shall consider what effects discontinuity of the electric supply will have on the ME equipment or ME systems including:
–
the duration of the discontinuity (failure) of the electrical supply;
–
the effect of any supply interruption on the treatment, monitoring or examination, including if any procedure repetition is hazardous to the patient or if it is impossible to repeat the examination results.
A comprehensive assessment shall be performed to identify the proper electrical supply requirements for the ME equipment, ME systems and supporting electrical equipment intended to be used.
Having identified these requirements, the appropriate classification for the medical location shall be determined. In order to determine the extent of a medical location, all possible patient positions shall be considered.
Where assessment shows any given location that falls into both group 1 or group 2 categories, the location shall be classified as group 2.
NOTE 1For the classification of electric supply systems for safety services, see IEC 60364‑5–56 and 710.560.4.1.
NOTE 2Guidance on the allocation of a group number and classification of electric supply systems for safety services for medical locations is shown in Annex A.

710.31Purposes, supplies and structure

710.312.2Types of system earthing

Add:
A TN-C system shall not be used downstream of the main distribution board.

710.313Supplies

710.313.1General

Add:

710.313.1.101Supplies for electric supply systems for safety services and standby systems in medical locations of group 1 and group 2

In medical locations of group 1 and group 2, the distribution system shall be designed and installed to facilitate the automatic transfer switching or automatic change-over equipment from the main distribution network to the electric source for safety services feeding essential loads (see IEC 60364‑5–56). Consideration shall be given to all other essential medical and non-medical loads.
Consideration should also be given to the inrush current of any connected equipment.
NOTEThis could also apply to group 0 medical locations.

710.313.1.102Power supply for medical locations of group 2

In case of a single fault in the power supply, a total loss of power shall be prevented. This may be achieved by:
–
provision of two independent supply lines, and/or
•
a UPS within the same fire section for supplying the medical IT system, or
•
a UPS that supplies a number of group 2 locations.

710.314Division of installation

Add:
710.314.101Final circuits for ME equipment and ME systems shall be for the exclusive use of such equipment.

710.41Protection for safety – Protection against electric shock

710.410.3General requirements

710.410.3.5

Replace with:
The protective measures of "obstacles" and "placing out of reach" shall not be used.

710.410.3.6

Replace with:
The protective measures of "non-conducting location", "protection by earth-free local equipotential bonding" and "electrical separation for the supply of more than one item of current-using equipment", shall not be used.

710.411Protective measure: automatic disconnection of supply

710.411.3Requirements for fault protection

710.411.3.2Automatic disconnection in case of a fault

710.411.3.2.5
Replace with:
In medical locations of group 1 and group 2, where disconnection of the power supply cannot be achieved either by means of an overcurrent protection device in accordance with IEC 60364‑4–41:2005, 411.3.2 and IEC 60364‑4–41:2005/AMD1:2017, 411.3.2 or by means of a residual current protective device (RCD), the following applies.
–
For IT, TN and TT systems, the permissible touch voltage UL shall not exceed 25 V AC (UL ≤ 25 V AC) or 60 V DC (UL ≤ 60 V DC).
–
In TN systems, 25 V AC (UL ≤ 25 V AC) or 60 V DC (UL ≤ 60 V DC) can be maintained using supplementary protective equipotential bonding.
The provisions described in IEC 60364‑4–41:2005/AMD1:2017, Annex D, shall not be applied.

710.411.3.3Further requirements for socket-outlets and for the supply of mobile equipment for use outdoors

Add:
Where a medical IT system is used, additional protection by means of a residual current protective device (RCD) shall not be used.

710.411.4TN system

710.411.4.5

Add:
In group 1 and group 2 medical locations, protection with residual current protective devices (RCDs) for TN circuits shall be in accordance with IEC 60364‑4‑41:2005/AMD:2017, 411.3.2.

710.411.5TT system

710.411.5.2

Add:
In medical locations of group 1 or group 2, residual current protective devices (RCDs) for TT circuits shall be in accordance with IEC 60364‑4–41:2005, 411.3.2 and IEC 60364‑4–41:2005/AMD1:2017, 411.3.2.

710.411.6IT system

Add:

710.411.6.1.101Medical IT systems

In group 2 medical locations, a medical IT system, including the requirements of 710.411.6.3.101 and 710.512.1.101, shall be used for final circuits and where the same final circuit is connected to ME equipment or an ME system, located within the patient environment. Exceptions can be made for final circuits for
–
equipment with a rated power greater than 5 kVA,
–
X-ray equipment,
–
the supply of the motors of fixed operating tables.
In medical locations of group 2, the supply to final circuits for socket-outlets for ME equipment and ME systems used for life-support of the patient, shall not be automatically disconnected in the event of a first fault.

710.411.6.3.101Medical insulation monitoring device

The medical IT system shall be equipped with a medical insulation monitoring device (MED-IMD) in accordance with IEC 61557–8:2014, Annex A and Annex B.
NOTE 1In addition to information given by a remote insulation warning, the following events could be constantly displayed:
–
status of the power supply lines for medical locations of group 2;
–
circuit breaker tripping;
–
other disorders that are important for the operation of the medical location;
–
malfunction of communication systems;
with the possibility to forward all information to technical staff.
An indelible and easily readable written explanation shall be provided in the medical location, which includes the meaning of each type of signal, alarm and the procedures to be followed in case of a first fault.
For transformers in accordance with IEC 61558–2–15 supplying a medical IT system, monitoring of overload and over temperature conditions shall be applied.
In a medical IT system, it is recommended to use an IFLS.
Where an insulation fault location system is installed, it shall be in accordance with IEC 61557–9:2014, Annex A.
NOTE 2An IFLS eases the location of the faults, especially in case of intermittent faults.

710.414Protective measure: extra-low-voltage provided by SELV and PELV

710.414.1General

Add:
710.414.1.101If SELV and/or PELV circuits in medical locations of group 1 and group 2 are used, the nominal voltage applied to current-using equipment shall not exceed 25 V RMS AC or 60 V ripple free DC. Protection by basic insulation of live parts in accordance with IEC 60364‑4–41:2005, Clause A.1 or by barriers or enclosures in accordance with IEC 60364‑4–41:2005, Clause A.2 shall be provided.
NOTERipple-free is conventionally defined as an RMS ripple voltage of not more than 10 % of the DC component.

710.414.4Requirements for SELV and PELV circuits

710.414.4.1

Add:
In medical locations of group 1 and group 2, where PELV is used, exposed-conductive-parts of equipment shall be connected to the equipotential bonding busbar via a protective bonding conductor.

710.415Additional protection

710.415.2Additional protection: supplementary protective equipotential bonding

Add:
710.415.2.101In each medical location of group 1 and group 2, a supplementary protective equipotential bonding system shall be installed, and the supplementary protective bonding conductors shall be connected to the equipotential bonding busbar for the purpose of equalizing potential differences between the following parts located within the patient environment:
–
extraneous-conductive-parts, unless they are intended to be isolated from earth;
–
screens against electrical interference fields, if installed;
–
connection to conductive floor grids, mesh and tapes, including those for static protection, if installed;
–
metal screens of isolating transformers, cable shields, etc., via the direct path to the protective earthing conductor;
Conductive parts intended to be isolated from earth shall not be connected to supplementary protective equipotential bonding.
Supplementary equipotential bonding connection points for the connection of ME equipment shall be available in group 2 locations and considered in group 1.
710.415.2.102In medical locations of group 1 and group 2, the resistance between simultaneously accessible exposed-conductive-parts, including the terminals for the protective conductor of socket-outlets and of fixed equipment, extraneous conductive parts and the equipotential bonding points shall be of such a value to meet the requirements of 710.411.3.2.5 and shall not exceed 0,2 Ω.
NOTEThe limit of 0,2 Ω is based on the use of a type B miniature circuit breaker rated current of 25 A to achieve the conventional touch voltage of 25 V AC.
National regulations may require other values.
710.415.2.103The equipotential bonding busbar shall be located within or near each medical location of group 1 and group 2. Connections shall be so arranged that they are accessible, labelled, clearly visible and that they can easily be individually disconnected.

710.42Protection for safety – Protection against thermal effects

710.421Protection against fire caused by electrical equipment

710.421.1General requirements

Add:
710.421.7.101Arc fault detection devices (AFDDs) shall not be used in circuits supplied by IT systems specified as medical IT systems in 710.411.6.
In circuits not supplied by medical IT systems, any use of an arc fault detection device (AFDD) shall be subject to a risk assessment.
NOTERisk assessments could involve the participation of fire inspectors, designers, architects and stakeholders.
Additional national legislation shall be observed.

710.44Protection for safety – Protection against voltage disturbances and electromagnetic disturbances

710.444Measures against electromagnetic influences

710.444.1General

Add:
Special consideration shall be given to electromagnetic interference and electromagnetic compatibility. Further information is provided in Annex B.
NOTEInformation about electrostatic control in healthcare can be found in IEC 61340 (all parts).

710.51Selection and erection of electrical equipment – Common rules

Add:

710.51.101Distribution boards

710.51.101.1General

Distribution boards shall be in accordance with IEC 61439 (all parts).
Separate distribution boards shall be provided for the general power supply and the electric supply system for safety services.

710.51.101.2Medical locations of group 2

Distribution boards for group 2 medical locations shall be installed in close proximity to the areas they serve and be clearly labelled. Distribution boards shall be installed outside the group 2 medical locations and should be safely secured against operation by unauthorized persons.
The medical IT distribution board should be located within 25 m of the area it serves. Leakage currents should be taken into consideration.
NOTE 1The 25 m are related to possible capacitive leakage current.
Recommendations for the minimum distances from the isolating transformers of the medical IT system to the equipment used within the patient environment are shown in informative Annex B.
The distribution board should be easily accessible for maintenance and be located on the same level and within the same fire compartment as the load it serves.
NOTE 2A distribution board for medical locations is one that fulfils the functions for the supplied medical location area assigned to it and where the main power supply voltage is monitored for operating the change-over to the electric supply system for safety services in accordance with 710.313.1.101 and 710.313.1.102.

710.51.102Electrical operating areas

Where electrical operating areas are provided, national regulations prevail. If no national regulations are available the following arrangements, if any, shall each be accommodated in their own enclosed electrical operating area:
–
main transformer;
–
switching stations with nominal voltages above 1 kV;
–
main distribution board for the general power supply including the sub-distribution board for this floor section, power factor correction and harmonic filtering;
–
main distribution board for the electric supply system for safety services including the sub-distribution board for this floor section;
–
stationary generating set for the electric supply system for safety services;
–
central batteries for the electric supply system for safety services, if the type of construction requires accommodation in an enclosed electrical operating area, as well as converter and control cabinets for the additional electric supply system for safety services.

710.512Operational conditions and external influences

710.512.1Operational conditions

Add:

710.512.1.101Isolating transformer for medical IT systems

Isolating transformers shall be in accordance with IEC 61558–2–15 and fulfil the following requirements.
At least one single-phase transformer shall be used for each medical IT system to supply equipment. The rated output shall not be less than 0,5 kVA and shall be limited to 10 kVA. Where several transformers are needed to supply equipment in one medical location, they shall not be connected in parallel.
However, if national regulations allow a three-phase transformer to be applied for the supply of single-phase loads, the construction or the method of connection shall be such, that no voltage increases to more than 250 V on the load side, even in case of unbalanced load and other possible faults on the primary side. Under these conditions, three-phase transformers with secondary windings in either star or delta connection are acceptable.
If the supply of three-phase loads via an IT system is also required, a separate three-phase transformer shall be provided for this purpose.
For monitoring see 710.411.6.3.101.
NOTEThe selection of an isolating transformer for medical IT systems with a short-circuit voltage suitable for the protection against overcurrent of the primary side and those of the final circuits is suitable for the design of the medical IT system.

710.512.2External influences

Add:

710.512.2.101Explosion risk

Additional precautions should be considered where hazardous conditions are likely to occur.
Electrical devices (socket-outlets and switches) installed all around any medical gas outlets for oxidizing or flammable gases shall be located at a distance of at least 0,2 m from the outlet (centre to centre), to minimize the risk of ignition of flammable gases.
NOTEFor medical supply units see ISO 11197.

710.514Identification

710.514.3Identification of neutral and protective conductors

Add:
710.514.3.101Protective bonding conductors for supplementary bonding shall be identified by the bi-colour combination GREEN-AND-YELLOW at least at the points of connection.
NOTESee IEC 60445:2017, Clause 6 for identification by colours of protective conductors.

710.514.5Diagrams

Add:

710.514.5.101Diagrams and documentation

In the absence of any national regulation, plans of the electrical installation together with records, drawings, wiring diagrams and modifications thereto, shall be provided for the user. The relevant documents are in particular:
–
single-line overview diagrams showing distribution circuits of the normal (main) power supply and electric supply system for safety services in a single-line representation. These diagrams shall contain information on the location of all distribution boards;
–
all main distribution board block diagrams showing switchgear and controlgear and distribution boards in a single-line representation;
–
building drawings;
–
circuit diagrams of controls;
–
documentation showing verification of compliance with the requirements of standards (e.g. with 710.411);
–
list of loads permanently connected to the electric supply system for safety services indicating the normal currents and, in the case of motor-operated loads, the starting currents;
–
list of circuit breaker settings;
–
functional description for the operation of the electric sources for safety services and of the electric supply system for safety services.

710.514.5.102Operating instructions

Instructions for operation and maintenance of the electrical installation shall be provided. The documents should include:
–
instructions for operation, inspection, testing and maintenance of storage batteries and electric supply system for safety services, including the automatic transfer switching or automatic change-over equipment;
–
a logbook containing a record of all tests and visual inspections;
–
information regarding visual inspection(s).

710.52Selection and erection of electrical equipment – Wiring systems

710.520.4General

Add:
Any wiring system within group 2 medical locations shall be exclusive to the use of equipment and accessories in that location.

710.53Selection and erection of electrical equipment – Devices for protection for safety, isolation, switching, control and monitoring

710.531Equipment for protection against electric shock

710.531.2Devices for automatic disconnection of supply

710.531.2.2Overcurrent protective devices

710.531.2.2.3IT system
Add:
710.531.2.2.3.101Medical IT systems
Overcurrent protective devices may be used in the primary side of the isolating transformer for medical IT systems for short-circuit protection only.
Overload protection shall not be installed in the secondary circuit of the isolating transformer for medical IT systems.
Overcurrent protection against short-circuit and overload current shall be used for each final circuit.
A 2-pole circuit-breaker shall be installed for each final circuit of single-phase supplies.

710.531.2.3Residual current protective devices

710.531.2.3.3Types of RCDs
Add:
710.531.2.3.3.101Selection of residual current protective devices in medical locations
In medical locations of group 1 and group 2, where residual current protective devices are required, RCDs shall be selected according to the possible fault current arising. RCDs of type AC shall not be used.
In group 1 medical locations, it is permissible to use residual current protective devices (RCDs) in final circuits with overcurrent protective devices rated above 32 A.
Consideration should be given to limiting the number of socket-outlets on one final circuit to reduce the possibility of unwanted tripping of the residual current protective device (RCD) by the simultaneous use of multiple equipment.
Where residual current protective devices (RCDs) are used in medical locations of group 2, each individual ME equipment or ME system shall be protected by a dedicated residual current protective device (RCD).
The ease and procedure for resetting any residual current protective device (RCD) shall be considered and documented.

710.531.7Monitoring devices

Add as a paragraph:
In medical IT systems, the insulation shall be monitored with a MED-IMD in accordance with IEC 61557–8:2014, Annex A and Annex B. The MED-IMD shall be installed in the medical IT system distribution board.

710.535Co-ordination of protective devices

710.535.1Selectivity between overcurrent protective devices

Add:

710.535.1.101Selectivity between overcurrent protective devices of group 2 medical locations

In order to comply with the requirements for continuous supply of medical locations of group 2, full selectivity shall be ensured for any prospective overcurrent. In case of a short-circuit in a final circuit, the incoming circuits of the upstream distribution board shall not be interrupted.

710.536Isolation and switching

Add:

710.536.101Automatic transfer switching or automatic change-over equipment

In medical locations, where automatic transfer switching or automatic change-over equipment is installed, the following shall apply.
–
The automatic transfer switching or automatic change-over equipment shall comply with IEC 60947–6–1.
–
The wiring system between the automatic transfer switching or automatic change-over equipment and the subsequent overcurrent protection device shall be installed in an inherently short circuit and earth-fault free manner.
–
The automatic transfer switching or automatic change-over equipment shall be arranged so that safe separation between supply-lines is maintained.
–
Arrangements to allow for the maintenance of automatic transfer switching or change-over equipment shall be considered, for example, a bypass could be implemented.
NOTEFor transfer times see 710.560.4.1.

710.537Monitoring

710.537.1General

710.537.1.3Selection of residual current monitoring devices (RCMs)

Add:
710.537.1.3.101Selection of residual current monitoring devices (RCMs) in group 1 and group 2 medical locations
In group 1 or group 2 medical locations, it is recommended to use residual current monitoring devices (RCMs) in accordance with IEC 62020‑1. Any significant reduction of the insulation should be reported to the users and technical staff. The acoustic and visual alarm requirements of 710.411.6.3.101 are recommended if used in group 2 medical locations.
Where a residual current monitoring device (RCM) is used, the RCM type shall be selected according to the possible fault current arising, for example type A or type B.

710.55Selection and erection of electrical equipment – Other equipment

Add:

710.55.101Socket-outlets in medical locations of group 2

710.55.101.1Socket-outlets in Medical IT systems

In medical IT systems, a signal lamp or display shall be fitted to indicate the availability of supply for each final circuit supplying socket-outlets intended for ME equipment.
NOTEWhere socket-outlets are fitted with supply indicator luminaires, the emission of green light is preferred.
Switched socket-outlets shall not be used for medical IT systems.
The configuration of socket-outlets shall be as follows:
–
a single socket-outlet supplied by an individually protected circuit; or
–
several socket-outlets separately supplied by a minimum of two final circuits, with a maximum of six socket-outlets per final circuit.

710.55.101.2TN-S or TT systems

Socket-outlets for TN-S or TT systems shall either be:
–
incompatible with those used for medical IT systems; or
–
clearly and permanently marked, for example by colour coding.

710.559Luminaires and lighting installations

Add:

710.559.101Lighting circuits

In medical locations of group 1 and group 2 a minimum of two lighting circuits shall be provided by at least two different sources of supply.
The transfer time and level of illumination provided should be considered and aligned with national regulations.

710.56Selection and erection of electrical equipment – Safety services

710.560.4Classification

710.560.4.1

Replace by:
The classification of an electric supply system for safety services for medical locations are as follows:
–
class A – no-break: an automatic supply system which can ensure a continuous supply within specified conditions during the period of transition;
–
class C – short break: an automatic supply system available within 0,5 s;
–
class E – medium break: an automatic supply system available within 15 s;
–
class F – long break: an automatic supply system available in more than 15 s.
Electric supply systems for safety services provided for medical locations having differing classifications should meet the classification that gives the highest security of supply.

710.560.5General

Add:
710.560.5.101In medical locations, an electric supply system for safety services that, in accordance with this document, will energize the installations needed for continued operation in case of failure of the general power system, for a defined period within a pre-set switch-over time, is required.
The electric source for safety services shall automatically take over, if the voltage of one or more incoming line conductors of the main distribution board of the building with the main power supply drops to less than 85 % of the nominal voltage and during more than 0,5 s.
In group 1 medical locations outside hospitals or equivalent institutions, it may not be necessary to install any electric source for safety services, where failure of the supply presents no threat to safety.
Procedures for the periodic verification, planned maintenance and also possible emergency failures of the electric sources for safety services and the electric supply system for safety services should be in place.

710.560.6Electrical sources for safety services

Add:
710.560.6.101In case of a failure of the general power supply source, the electric source for safety services shall be energized to feed the equipment stated in 710.560.6.103.1, 710.560.6.103.2 and 710.560.6.103.3 with electric energy for a defined period of time and within a pre-determined transfer time.
NOTEFor more information on interconnecting cables between the individual components and subassemblies of the electric source for safety services, see IEC 60364‑5–52.
710.560.6.102Socket-outlets supplied from an electric source for safety services shall also be readily identifiable according to their safety services classification, for example by colour coding or labelling.
NOTEAdditional national requirements can be applicable.

710.560.6.103Detailed requirements for the electric source for safety services

710.560.6.103.1Transfer time is less than or equal to 0,5 s.
If the voltage drops below 85 % of the nominal voltage at the distribution board, an electric source for safety services that can provide a power supply for a period of at least 3 h shall be used for:
–
luminaries of operating theatre tables;
–
ME equipment and ME systems containing light sources or equipment essential to the procedure; as an example, this equipment may include endoscopes and essential equipment such as monitors;
–
critical life-supporting ME equipment and ME systems.
NOTEAssessment (710.30) can identify other equipment requiring connection to an electric source for safety services with the above requirements.
The power supply shall be connected automatically within a transfer time not exceeding 0,5 s.
The duration of 3 h may be reduced to 1 h, if an independent electric source for safety services in accordance with 710.560.6.103.2 is installed.
710.560.6.103.2Transfer time is less than or equal to 15 s.
ME equipment and ME systems not connected to an electric source for safety services in accordance with 710.560.6.103.1 and applications in accordance with 710.560.9 shall be connected automatically and within 15 s to an electric source for safety services, which can maintain the connection for a minimum period of 24 h, when the voltage of one or more line conductors at the main distribution board for the electric source for safety services drops to less than 85 % of the nominal voltage and for more than 3 s.
The duration of 24 h may be reduced to a minimum of three hours, if the medical requirements and the use of the location, including any treatment, allows this and if the building can be evacuated in a time which is well within the three-hour-period.
710.560.6.103.3Transfer time is longer than 15 s.
Equipment, other than those covered by 710.560.6.103.1 and 710.560.6.103.2, which is essential to maintain medical operations or equivalent services, shall be connected automatically (or manually) to an electric source for safety services, which can maintain the connection for a minimum period of 24 h. This equipment may include, for example:
–
sterilization equipment;
–
technical building installations, in particular air conditioning, heating and ventilation systems, building services and waste disposal systems;
–
cooling equipment;
–
catering equipment;
–
storage battery chargers;
–
fireman's lift or patient bed lift.
A risk assessment could lead to an extension of this 24 h period.
710.560.6.104Additional requirements for electric sources for safety services of medical locations of group 1 and group 2
An additional main incoming power supply such as an independent normal supply is not regarded as an electric source for safety services.
NOTEFor the use of unit-type power stations with jacking-piston combustion engines as an electric source for safety services, see ISO 8528‑1. For ratings of supplied power for specifications for prime power (PRP), see ISO 8528‑1:2018, 14.3.3.

710.560.6.1

Add:
Primary cells shall not be used as an electric source for safety services.

710.560.6.11

Add:
Where a UPS is used, it shall:
f)
be possible to start the UPS without any upstream supply available.

710.560.6.13

Add:
The availability (readiness for service) of the electric source for safety services shall be monitored and indicated at a suitable location.

710.560.9Emergency lighting applications

Add:

710.560.9.101Safety lighting

In the event of mains power failure, the transfer time to the electric source for safety services shall not exceed 15 s. The necessary minimum illuminance shall comply with national requirements and be provided for the following locations:
–
locations for switchgear and controlgear for emergency generating sets and for main distribution boards of the normal power supply and for the electric supply system for safety services;
–
locations intended for essential services. In each such location at least one luminaire shall be supplied from the electric source for safety services;
–
locations of central fire alarm and monitoring systems;
–
rooms of medical locations of group 1. In each such room at least one luminaire shall be supplied from the electric source for safety services;
In medical locations of group 1 outside hospitals or equivalent institutions, it may not be necessary to install any electric supply system for safety lighting and emergency escape lighting, if a failure of the supply does not prevent ending the procedure and safely evacuating the location.
–
rooms of medical locations of group 2. A minimum of 50 % lumen shall be supplied from the electric source for safety services.
If selective protection by disconnection of supply is applicable, it shall be so arranged that the protective equipment does not disconnect all the lighting circuits of the room or escape route.
NOTENational regulations can require shorter transfer times.

710.6Verification

710.6.4Initial verification

Add:
710.6.4.101Initial verification shall be carried out in accordance with national regulations. If no national regulations exist, the following inspections and tests are recommended.
The tests specified under items a) to h) and in addition to the requirements of IEC 60364‑6, shall be carried out and recorded, both prior to commissioning and after alterations or repairs and before re-commissioning:
a)
functional test of change-over devices in accordance with the manufacturer's instructions;
b)
functional test of MED-IMD and the overload monitoring systems of medical IT systems and acoustical/visual alarm systems as recommended by the manufacturer;
c)
measurements to verify that the supplementary equipotential bonding is in accordance with 710.415.2.101 and 710.415.2.102;
d)
verification of the integrity of the facilities for equipotential bonding required by 710.415.2.101;
e)
verification of the integrity of the facilities for the electric supply system for safety services required by 710.56;
f)
mathematical verification of the compliance of the selectivity of the electric supply system for safety services regarding planning documents and calculation;
g)
mathematical verification of the applied protective measures for compliance with the requirements for medical locations of group 1 and group 2 with attention to the requirements of 710.535.1;
h)
visual verification that the marking of the rating of the isolating transformer is in accordance with 710.512.1.101 and design documents.

710.6.5Periodic verification

Add:

710.6.5.101

NOTEThe procedures for the periodic inspection are usually done in close cooperation with the medical staff so that the risk for patients is reduced to a minimum.
The procedures for periodic inspection shall be carried out in accordance with national regulations.
Items a) to i) are recommended:
a)
functional testing of change-over devices: in accordance with the manufacturer's instructions and at least every 12 months;
b)
functional testing of the medical insulating monitoring devices (MED-IMD) and overload monitoring system of medical IT systems and acoustical/visual alarm systems: 12 months;
c)
measurement verifying the supplementary equipotential bonding: 36 months;
d)
verifying integrity of facilities required for equipotential bonding: 36 months;
e)
monthly functional testing of electric supply system for safety services in accordance with the manufacturer's instructions:
–
for a UPS and combustion engines: at least 80 % of the rated power;
–
batteries: a minimum of 15 min;
–
combustion engines: a minimum of 60 min;
A risk assessment is required before testing standby generators in long-term parallel with the grid.
f)
annual functional testing of the electric supply system for safety services in accordance with the manufacturer's instructions:
–
for a UPS and combustion engines: at least 80 % of the rated power;
–
batteries: capacity test for a minimum of 15 min;
–
combustion engines, until rated running temperature is achieved: endurance run for a minimum of 120 min;
–
generators black start testing: at least once every 12 months;
A risk assessment is required before testing standby generators in long-term parallel with the grid.
g)
checking the tripping of RCDs at IΔn: according to the manufacturer's instructions and at least every 12 months;
h)
visual inspection, functional tests and measurements of the electrical installation, especially to verify the protection against electric shock, including the settings of adjustable protective devices: at least 12 months;
i)
functional test of the lighting of exit signs, escape routes, locations for switchgear and control gear: 12 months.
Figure 710.1 — Example of a patient environment
NOTEThe dimensions show the minimum extent of the patient environment in a free surrounding.
SOURCE: IEC 60061‑1:2005, Figure A.9.
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Gulf StandardGSO IEC 60364-7-710:2024
Gulf StandardGSO IEC 60364-7-710:2024
Gulf StandardGSO IEC 60364-7-710:2024
GSO IEC 60364-7-710:2024Gulf Standard
Bibliography
IEC 60364‑5–55:2011, Electrical installations of buildings – Part 5-55: Selection and erection of electrical equipment – Other equipment
IEC 60364‑5–55:2011/AMD1:2012;
IEC 60364‑5–55:2011/AMD2:2016
IEC 60445:2017, Basic and safety principles for man-machine interface, marking and identification – Identification of equipment terminals, conductor terminations and conductors
IEC 60601 (all parts), Medical electrical equipment
IEC 60601‑1:2005, Medical electrical equipment – Part 1: General requirements for basic safety and essential performance
IEC 60601‑1:2005/AMD1:2012
IEC 60601‑1:2005/AMD2:2020
IEC 61000 (all parts), Electromagnetic compatibility (EMC)
IEC 61340 (all parts), Electrostatics
IEC 61340‑6‑1:2018, Electrostatics – Part 6-1: Electrostatic control for healthcare – General requirements for facilities
IEC 62020‑1, Electrical accessories – Residual current monitors (RCMs) – Part 1: RCMs for household and similar uses
IEC 62040–1:2017, Uninterruptible power systems (UPS) – Part 1: Safety requirements
ISO 8528‑1:2018, Reciprocating internal combustion engine driven alternating current generating sets – Part 1: Application, ratings and performance
ISO 11197, Medical supply units
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