Low-voltage electrical installations - Part 7-701: Requirements for special installations or locations - Locations containing a bath or shower

IEC 60364-7-701:2019 applies to electrical installations in indoor or outdoor locations where a bath tub and/or a shower is intended to be permanently placed in a specific location.
The extent of the location containing a bath tub and/or a shower is limited by:
– the lowest finished floor level;
– a horizontal plane 3 m above the lowest finished floor level;
– a vertical circumscribing virtual surface at a distance of 4 m from the fixed water outlet for the bath tub or shower; and
– the volume within the walls, floor and ceiling that border the location containing a bath or shower, measured to a depth of 6 cm.
The requirements of this document also apply to fixed electrical installations in mobile applications, for example caravans, mobile homes, shower containers. This document does not apply to emergency facilities, for example emergency showers used in industrial areas or laboratories.
This third edition cancels and replaces the second edition published in 2006. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous edition:
– the scope gives precisions relevant to the application of this document;
– the description of zones is improved;
– relevant terms are defined.

Installations électriques à basse tension – Partie 7-701: Exigences pour les installations et emplacements spéciaux – Emplacements contenant une baignoire ou une douche

IEC 60364-7-701:2019 s’applique aux installations électriques se trouvant dans des emplacements intérieurs ou extérieurs où une baignoire et/ou une douche sont destinées à être installées de façon permanente dans un emplacement spécifique.
L’étendue de l’emplacement contenant une baignoire et/ou une douche est délimitée par:
– le niveau le plus bas du sol fini;
– un plan horizontal situé 3 m au-dessus du niveau le plus bas du sol fini;
– une surface virtuelle verticale se situant à une distance de 4 m de l’arrivée d’eau fixe pour la baignoire ou la douche; et
– le volume entre les murs, sol et plafond qui délimitent l’emplacement contenant une baignoire ou une douche, mesuré à une profondeur de 6 cm.
Les exigences du présent document s’appliquent également aux installations électriques fixes dans des applications mobiles, par exemple les caravanes, mobil-homes, sanitaires mobiles. Le présent document ne s’applique pas aux équipements d’urgence, par exemple les douches d’urgence utilisées dans les installations industrielles ou dans les laboratoires.
Cette édition inclut les modifications techniques majeures suivantes par rapport à l'édition précédente:
– le domaine d’application donne des précisions relatives à l’application du présent document;
– la description des volumes est améliorée;
– les termes pertinents sont définis.

General Information

Status
Published
Publication Date
13-Oct-2019
Current Stage
PPUB - Publication issued
Completion Date
14-Oct-2019
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IEC 60364-7-701
Edition 3.0 2019-10
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Low-voltage electrical installations –
Part 7-701: Requirements for special installations or locations – Locations
containing a bath or shower
Installations électriques à basse tension –
Partie 7-701: Exigences pour les installations et emplacements spéciaux –
Emplacements contenant une baignoire ou une douche
IEC 60364-7-701:2019-10(en-fr)
---------------------- Page: 1 ----------------------
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---------------------- Page: 2 ----------------------
IEC 60364-7-701
Edition 3.0 2019-10
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Low-voltage electrical installations –
Part 7-701: Requirements for special installations or locations – Locations
containing a bath or shower
Installations électriques à basse tension –
Partie 7-701: Exigences pour les installations et emplacements spéciaux –
Emplacements contenant une baignoire ou une douche
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 29.020; 91.140.50 ISBN 978-2-8322-7414-9

Warning! Make sure that you obtained this publication from an authorized distributor.

Attention! Veuillez vous assurer que vous avez obtenu cette publication via un distributeur agréé.

® Registered trademark of the International Electrotechnical Commission
Marque déposée de la Commission Electrotechnique Internationale
---------------------- Page: 3 ----------------------
– 2 – IEC 60364-7-701:2019  IEC 2019
CONTENTS

FOREWORD ........................................................................................................................... 3

INTRODUCTION ..................................................................................................................... 5

701 Locations containing a bath or shower ............................................................................. 6

701.1 Scope .............................................................................................................. 6

701.2 Normative references ....................................................................................... 6

701.3 Terms and definitions ....................................................................................... 6

701.30 Assessment of general characteristics ............................................................. 7

701.4 Protection for safety ......................................................................................... 8

701.41 Protection against electric shock ...................................................................... 8

701.411 Protective measure: automatic disconnection of supply .................................... 9

701.414 Protective measure: extra-low-voltage provided by SELV and PELV ................ 9

701.415 Additional protection ........................................................................................ 9

701.5 Selection and erection of electrical equipment................................................ 10

701.51 Common rules ................................................................................................ 10

701.512 Operational conditions and external influences .............................................. 10

701.52 Wiring systems ............................................................................................... 11

701.522 Selection and erection of wiring systems in relation to external

influences ...................................................................................................... 11

701.53 Devices for protection for safety, isolation, switching, control and

monitoring ...................................................................................................... 12

701.531 Devices for protection against indirect contact by automatic

disconnection of supply .................................................................................. 12

Annex A (informative) List of notes concerning certain countries .......................................... 21

Bibliography .......................................................................................................................... 27

Figure 1 – Remaining wall thickness behind zones ............................................................... 12

Figure 2 – Dimensions of zones: side view of a bath tub ....................................................... 13

Figure 3 – Dimensions of zones: top view of a bath tub without partition ............................... 14

Figure 4 – Dimensions of zones: top view of a bath tub with fixed partition ........................... 15

Figure 5 – Dimensions of zones 0 and 1: side view of a shower ............................................ 16

Figure 6 – Dimensions of zones 0 and 1: side view of a shower with fixed partition ............... 17

Figure 7 – Dimensions of zones 0 and 1: top view of a shower with fixed water outlet

close to a corner ................................................................................................................... 18

Figure 8 – Dimensions of zones 0 and 1: top view of a shower with fixed water outlet at

a distance from a corner ....................................................................................................... 18

Figure 9 – Dimensions of zones 0 and 1: top view of a shower with a fixed partition ............. 19

Figure 10 – Example of zone for shower with doors .............................................................. 20

Figure 11 – Dimensions of zones in locations containing a shower with a basin .................... 26

---------------------- Page: 4 ----------------------
IEC 60364-7-701:2019  IEC 2019 – 3 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
LOW-VOLTAGE ELECTRICAL INSTALLATIONS –
Part 7-701: Requirements for special installations or locations –
Locations containing a bath or shower
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

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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.

International Standard IEC 60364-7-701 has been prepared by IEC technical committee 64:

Electrical installations and protection against electric shock.

This third edition cancels and replaces the second edition published in 2006. This edition

constitutes a technical revision.

This edition includes the following significant technical changes with respect to the previous

edition:
– the scope gives precisions relevant to the application of this document;
– the description of zones is improved;
– relevant terms are defined.
---------------------- Page: 5 ----------------------
– 4 – IEC 60364-7-701:2019  IEC 2019
The text of this International Standard is based on the following documents:
FDIS Report on voting
64/2382/FDIS 64/2395/RVD

Full information on the voting for the approval of this International Standard can be found in

the report on voting indicated in the above table.

This document has been drafted in accordance with the ISO/IEC Directives, Part 2.

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 A 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.
---------------------- Page: 6 ----------------------
IEC 60364-7-701:2019  IEC 2019 – 5 –
INTRODUCTION

For the purpose of this part of IEC 60364 (IEC 60364-7-701) the requirements of the general

Parts 1 to 6 and Parts 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 reference).

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

reference).

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 701.101, 701.102, 701.103, 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 701 may

no longer align with the latest edition of the general part. Dated references should be

observed.
---------------------- Page: 7 ----------------------
– 6 – IEC 60364-7-701:2019  IEC 2019
LOW-VOLTAGE ELECTRICAL INSTALLATIONS –
Part 7-701: Requirements for special installations or locations –
Locations containing a bath or shower
701 Locations containing a bath or shower
701.1 Scope

The particular requirements of this part of IEC 60364 apply to electrical installations in indoor

or outdoor locations where a bath tub and/or a shower is intended to be permanently placed in

a specific location.
The extent of the location containing a bath tub and/or a shower is limited by:
– the lowest finished floor level;
– a horizontal plane 3 m above the lowest finished floor level;

– a vertical circumscribing virtual surface at a distance of 4 m from the fixed water outlet for

the bath tub or shower; and

– the volume within the walls, floor and ceiling that border the location containing a bath or

shower, measured to a depth of 6 cm.

NOTE 1 Where the shower head and flexible hose are detachable, the fixed water outlet is taken to be at the

supply end of the flexible hose.

The requirements of this document also apply to fixed electrical installations in mobile

applications, for example caravans, mobile homes, shower containers. This document does

not apply to emergency facilities, for example emergency showers used in industrial areas or

laboratories.

NOTE 2 For locations containing a bath or shower for medical treatment, special requirements can be necessary.

NOTE 3 For prefabricated bath and/or shower units, see also IEC 60335-2-105.
701.2 Normative 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 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
701.3 Terms and definitions
For the purposes of this document, the following terms and definitions 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
---------------------- Page: 8 ----------------------
IEC 60364-7-701:2019  IEC 2019 – 7 –
701.3.1
location
particular place or position

EXAMPLE A dedicated room, an area of a room (e.g. area in a loft), an outdoor area.

701.3.2
bath tub

basin for the total or substantial immersion of the human body in water, which is intended to

be drained after every use
701.3.3
shower

defined place intended for personal cleaning activity under a spray of water without intentional

retention of the water
701.3.4
fixed partition

solid barrier or enclosure, including any integrated doors, with some portion attached to the

building structure that will deflect water directed against its surface
Note 1 to entry: Integrated doors are considered to be closed.
Note 2 to entry: A curtain is not a fixed partition.
701.30 Assessment of general characteristics
701.30.101 General

When applying this document, the zones specified in 701.30.102, 701.30.103, and 701.30.104

shall be taken into account. For fixed prefabricated bath or shower units, the zones are

applied to the situation when the bath or shower basin is in its intended configuration.

Fixed partitions including horizontal or inclined ceilings, walls with or without windows, doors,

floors, may limit the extent of locations containing a bath or shower as well as their zones.

Where the dimensions of fixed partitions are smaller than the dimensions of the relevant

zones, for example partitions having a height lower than 225 cm, the minimum distance in

horizontal and vertical direction shall be taken into account (see Figure 2 to Figure 9).

Shower curtains or equivalent flexible material shall not be used for limiting the zones.

Where a shower is located in zone 1 of a bath tub, the zones for a bath tub apply.

Where for showers there is more than one fixed water outlet, the limit of the zones to be

considered are those given by the combination of the zones.
701.30.102 Description of zone 0
Zone 0 is limited:
a) by the interior of a bath tub, see Figure 2 to Figure 4;
b) for showers:

– from the lowest finished floor level up to a horizontal plane at the height of 10 cm

above; and

– by a vertical circumscribing virtual surface at a distance of 120 cm from the centre of

the fixed shower head(s) and/or water outlet(s) limited by fixed partitions restricting the

water to enter into the area on the other side of the partition (see Figure 5, Figure 6,

Figure 7, Figure 8 and Figure 9).
---------------------- Page: 9 ----------------------
– 8 – IEC 60364-7-701:2019  IEC 2019

– Shower doors intended to be closed when taking a shower are delimiting the zone 0,

(see Figure 10).
701.30.103 Description of zone 1
Zone 1 is limited:
a) for a bath tub by:
– the floor level below the bath tub;

– a horizontal plane lying 225 cm above the floor level below the bath tub or a horizontal

plane corresponding to the highest fixed shower head, if any, or fixed water outlet,

whichever is higher;

– the vertical virtual surface circumscribing the bath tub (see Figure 2 to Figure 4); and

– excluding zone 0;
b) for showers by:
– the lowest finished floor level;

– a horizontal plane corresponding to the highest fixed shower head or fixed water

outlet or the horizontal plane lying 225 cm above the lowest finished floor level,

whichever is higher;

– the vertical circumscribing virtual surface at a distance of 120 cm from the centre of

the fixed shower head(s) and/or fixed water outlet(s) limited by fixed partitions

restricting the water to enter into the area on the other side of the partition;

– shower doors intended to be closed when taking a shower, if any, see Figure 10; and

– excluding zone 0.
701.30.104 Description of zone 2
Zone 2 is limited:
a) for a bath tub by:
– the finished floor level;

– the horizontal plane corresponding to the highest fixed shower head or fixed water

outlet or the horizontal plane lying 225 cm above the finished floor level, whichever is

higher; and

– the vertical virtual surface at the boundary of zone 1 and the parallel vertical virtual

surface at a distance of 60 cm from the zone 1 border (see Figure 2 to Figure 4);

b) for showers, there is no zone 2. (see Figure 5 to Figure 10).
701.4 Protection for safety
701.41 Protection against electric shock
701.410.3 General requirements
701.410.3.4
Replace the existing text by the following:
The protective measure electrical separation shall only be used for:
– circuits supplying one item of current-using equipment; or
– one single socket-outlet.

The protective measure electrical separation for the supply shall not be applied for heating cables

and embedded heating systems.
---------------------- Page: 10 ----------------------
IEC 60364-7-701:2019  IEC 2019 – 9 –
701.410.3.5
Replace the existing text by the following:
The protective measures of obstacles and placing out of reach, as specified in
IEC 60364-4-41:2005, Annex B shall not be applied.
701.410.3.6
Replace the existing text by the following:

The protective measures of non-conducting location, earth-free local equipotential bonding

and electrical separation for the supply of more than one item of current-using equipment, as

specified in IEC 60364-4-41:2005 and IEC 60364-4-41:2005/AMD1:2017, Annex C shall not

be applied.
701.411 Protective measure: automatic disconnection of supply
701.411.3 Requirements for fault protection
701.411.3.1 Protective earthing and protective equipotential bonding
701.411.3.1.101

If no protective equipotential bonding in accordance with IEC 60364-4-41:2005 and

IEC 60364-4-41:2005/AMD1:2017, 411.3.1.2 exists, supplementary protective equipotential

bonding in accordance with IEC 60364-4-41:2005 and IEC 60364-4-41:2005/AMD1:2017,

415.2 shall be installed within the location.
701.414 Protective measure: extra-low-voltage provided by SELV and PELV
701.414.1 General
701.414.1.101

All electrical equipment installed in zones 0 and 1 shall have basic insulation capable of

withstanding a test voltage of 500 V AC RMS for 1 min.
All electrical equipment installed in a zone 2 shall have:

– basic insulation capable of withstanding a test voltage of 500 V AC RMS for 1 min; or

– enclosures affording a degree of protection of at least IPXXB or IP2X.
701.415 Additional protection
701.415.1 Additional protection: residual current protective devices (RCDs)
701.415.1.101

Except for circuits with protective measures “SELV or PELV” or “protection by electrical

separation”, additional protection by the use of one or more RCDs having a rated residual

operating current not exceeding 30 mA shall be provided for:
– circuits serving the location containing a bath tub and/or a shower;
– circuits passing through zone 1 and/or zone 2 not serving this location.
---------------------- Page: 11 ----------------------
– 10 – IEC 60364-7-701:2019  IEC 2019
701.5 Selection and erection of electrical equipment
701.51 Common rules
701.512 Operational conditions and external influences
701.512.2 External influences
701.512.2.4.101 Erection of equipment according to external influences
701.512.2.4.101.1 General

Electrical equipment that is likely to be exposed to water jets (e.g. for cleaning purposes)

shall have a degree of protection at least IPX5. A higher degree of protection shall be

considered if more severe conditions are expected.

Where electrical equipment extends in more than one zone, the requirements of the zone with

the most onerous requirements apply.

EXAMPLE For a luminaire extending from zone 1 to zone 2, the requirements of zone 1 apply.

For flush mounted electrical equipment in parts of walls, floor or ceilings limiting a zone, the

requirements of that zone apply.
701.512.2.4.101.2 Zone 0
Only fixed current using equipment may be erected provided that the equipment:

– complies with the relevant standard and is suitable for use in that zone according to

the manufacturer’s instructions for use and mounting;
– is permanently connected;

– is protected by SELV with a rated voltage not exceeding 12 V AC or 30 V DC, with the

source of supply installed outside of zones 0 and 1; and
– has a degree of protection at least IPX7.
701.512.2.4.101.3 Zone 1
Only the following equipment may be erected:
a) current-using equipment protected by SELV or PELV with a rated voltage not

exceeding 25 V AC or 60 V DC, with the source of supply installed outside zones 0 and

1; or
b) socket-outlets of circuits protected by SELV or PELV with a rated voltage not

exceeding 25 V AC or 60 V DC, with the source of supply installed outside zones 0 and

1; or

c) fixed or stationary current-using equipment permanently connected and suitable for

installation in zone 1 according to the manufacturer’s instruction for use and mounting;

d) junction boxes and fittings necessary for the supply of equipment installed according to

a), b) and c).
Equipment shall have a degree of protection at least IPX4.

EXAMPLE Equipment likely to be installed in zone 1 includes hot tubs, shower pumps, ventilation equipment,

towel rails, water heating appliances, luminaires, washing machines, active glazing, infrared and ultraviolet

emitters.
---------------------- Page: 12 ----------------------
IEC 60364-7-701:2019  IEC 2019 – 11 –
701.512.2.4.101.4 Zone 2
Only the following equipment may be erected:

– fixed current-using equipment, having a degree of protection of at least IPX4, that is

permanently connected;

– socket-outlets, having a degree of protection of at least IPX4, of circuits protected by

SELV or PELV with the source of supply installed outside zones 0 and 1;
– electrical accessories,
...

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