SIST HD 60364-7-703:2005
(Main)Electrical installations of buildings -- Part 7-703: Requirements for special installations or locations - Rooms and cabins containing sauna heaters
Electrical installations of buildings -- Part 7-703: Requirements for special installations or locations - Rooms and cabins containing sauna heaters
The particular requirements of this part of EN 60364 apply to: - sauna cabins erected on site, e.g. in a location or in a room; - the room where the sauna heater is, or the sauna heating appliances are installed. In this case the whole room is considered as the sauna. They do not apply to prefabricated sauna cabins complying with a relevant equipment standard. Where facilities like cold water basins or showers, etc. are installed, the requirements of Part 7-701 also apply. The main technical changes with respect to the previous edition concern the updating of requirements to take into account the evolution in sauna equipment, with particular emphasis on prefabricated cabins. In addition, in response to a need from installers, there has been some elaboration on temperature repartition in saunas as well as protection against electric shock. Finally, the four zones described in the first edition have now been reduced to three zones.
Elektrische Anlagen von Gebäuden -- Teil 7-703: Anforderungen für Betriebsstätten, Räume und Anlagen besonderer Art - Räume und Kabinen mit Saunaheizgeräten
Installations électriques dans les bâtiments -- Partie 7-703: Exigences pour les installations et emplacements spéciaux - Locaux contenant des radiateurs pour saunas
Les exigences particulières de la présente partie de la EN 60364 s'appliquent: - aux cabines de sauna installées sur place, dans un local ou dans une pièce; - aux locaux où le chauffage du sauna ou ses éléments de chauffage sont installés. Dans ce cas, l'ensemble du local est considéré comme un sauna. Elles ne s'appliquent pas aux cabines de sauna préfabriquées conformes à une norme de produit. Si des équipements tels que des bassins d'eau froide ou des douches, etc., sont installés, les exigences de la Partie 7-701 sont aussi applicables. Les modifications techniques majeures, par rapport à l'édition précédente, concernent la mise à jour des exigences relatives à l'évolution de l'équipement de sauna, plus particulièrement les cabines de sauna préfabriquées. Par ailleurs, en réponse à la demande des constructeurs, la répartition de la température dans les saunas, ainsi que la protection contre les chocs électriques ont été élaborées. Enfin, quatre volumes décrites dans la première édition ont été, maintenant, réduites à trois volumes.
Električne inštalacije zgradb – 7-703. del: Zahteve za posebne inštalacije ali lokacije – Sobe in kabine s savna greli
General Information
- Status
- Published
- Publication Date
- 31-Oct-2005
- Technical Committee
- ELI - Electrical and communication installations
- Current Stage
- 6060 - National Implementation/Publication (Adopted Project)
- Start Date
- 01-Nov-2005
- Due Date
- 01-Nov-2005
- Completion Date
- 01-Nov-2005
Relations
- Effective Date
- 01-May-2008
Overview
SIST HD 60364-7-703:2005 is a harmonized European standard under CENELEC, providing essential requirements for electrical installations in rooms and cabins containing sauna heaters. This part of the EN 60364 series specifically addresses the safety and technical standards needed to ensure reliable and hazard-free electrical operation within sauna environments. It applies to sauna cabins erected on-site and rooms housing sauna heating appliances, excluding prefabricated cabins covered by separate equipment standards.
The document updates previous editions by refining safety zones, enhancing guidance on temperature distribution, and strengthening electric shock protection measures, reflecting the evolution of sauna technology and installer needs.
Key Topics
Scope and Applicability
- Applies to on-site erected sauna cabins and rooms containing sauna heaters.
- Excludes prefabricated sauna cabins subject to relevant equipment standards.
- Covers additional facilities like cold water basins and showers, with cross-reference to EN 60364-7-701.
Safety Zones
- Establishes three distinct zones around sauna heaters for electrical safety:
- Zone 1: Immediate volume around the sauna heater (up to 0.5 m distance).
- Zone 2: Area outside Zone 1, up to 1 m height.
- Zone 3: Surrounding space outside Zones 1 and 2, up to 1 m height.
- Each zone dictates specific requirements concerning equipment type, temperature resistance, and installation practices.
- Establishes three distinct zones around sauna heaters for electrical safety:
Protection Against Electric Shock
- Requires protection against direct and indirect contact for all sauna electrical equipment.
- Mandates barriers, enclosures, or insulation compliant with minimum IP ratings (IPXXB or IP2X).
- Enforces use of residual current devices (RCDs) with a maximum rated residual operating current of 30 mA for all circuits except the sauna heater.
- Prohibits protection by obstacles or placing equipment out of reach; earth-free local equipotential bonding is not permitted.
Equipment Selection and Installation
- Electrical equipment must meet a minimum ingress protection rating of IP24, or IPX5 where water jets are expected during cleaning.
- Wiring systems should ideally be located outside defined sauna zones; if inside Zone 1 or 3, must be heat-resistant.
- Metallic conduits and sheaths are to be non-accessible during normal use.
- Switchgear and control gear for the sauna heater may be installed inside the sauna room only if per manufacturer instructions; all other switchgear should be outside.
- Installation of socket outlets inside sauna rooms is prohibited.
Temperature Considerations
- Special emphasis on correct temperature repartition inside saunas to ensure electrical equipment operates safely.
- Equipment and wiring insulation must withstand elevated temperatures, with equipment in Zone 3 rated for 125 °C and wiring insulation for 170 °C minimum.
Applications
The standard is critical for electrical engineers, installers, and safety inspectors involved in designing, erecting, and maintaining sauna facilities in commercial or residential buildings. Compliance ensures:
- Enhanced safety of sauna electrical installations against shock and fire hazards.
- Longevity and reliability of sauna heating appliances and associated electrical equipment.
- Harmonized international practices facilitating cross-border projects and certifications.
- Proper risk management when implementing electrical systems in high-temperature, moisture-prone sauna environments.
This standard also complements related standards for electric appliances, including IEC 60335-2-53, which specifies particular safety requirements for sauna heating appliances.
Related Standards
IEC 60364 Series – Overall framework for electrical installations of buildings:
- Part 7-701: Requirements for locations containing bathtubs or shower basins.
- Part 1 to Part 6: Fundamental principles, protection for safety, selection and erection of electrical equipment, verification.
IEC 60335-2-53 – Household and similar electrical appliances – Safety standards specific to sauna heating appliances.
EN 60364-7-701 – Provides additional requirements for electrical installations in rooms with water facilities adjacent to sauna installations.
Conclusion
SIST HD 60364-7-703:2005 is an essential standard for ensuring safe, reliable electrical installations in sauna rooms and cabins. By defining safety zones, temperature requirements, and mandatory protective measures, it reduces electrical hazards associated with sauna heaters. Electrical professionals must apply this standard diligently to maintain compliance, protect end-users, and support the longevity of sauna heating equipment.
Keywords: sauna electrical installations, sauna heater safety, electrical safety zones, IEC 60364 sauna, sauna wiring standards, IP rating sauna equipment, electrical protection sauna rooms, residual current device sauna, temperature-resistant electrical installations
Frequently Asked Questions
SIST HD 60364-7-703:2005 is a standardization document published by the Slovenian Institute for Standardization (SIST). Its full title is "Electrical installations of buildings -- Part 7-703: Requirements for special installations or locations - Rooms and cabins containing sauna heaters". This standard covers: The particular requirements of this part of EN 60364 apply to: - sauna cabins erected on site, e.g. in a location or in a room; - the room where the sauna heater is, or the sauna heating appliances are installed. In this case the whole room is considered as the sauna. They do not apply to prefabricated sauna cabins complying with a relevant equipment standard. Where facilities like cold water basins or showers, etc. are installed, the requirements of Part 7-701 also apply. The main technical changes with respect to the previous edition concern the updating of requirements to take into account the evolution in sauna equipment, with particular emphasis on prefabricated cabins. In addition, in response to a need from installers, there has been some elaboration on temperature repartition in saunas as well as protection against electric shock. Finally, the four zones described in the first edition have now been reduced to three zones.
The particular requirements of this part of EN 60364 apply to: - sauna cabins erected on site, e.g. in a location or in a room; - the room where the sauna heater is, or the sauna heating appliances are installed. In this case the whole room is considered as the sauna. They do not apply to prefabricated sauna cabins complying with a relevant equipment standard. Where facilities like cold water basins or showers, etc. are installed, the requirements of Part 7-701 also apply. The main technical changes with respect to the previous edition concern the updating of requirements to take into account the evolution in sauna equipment, with particular emphasis on prefabricated cabins. In addition, in response to a need from installers, there has been some elaboration on temperature repartition in saunas as well as protection against electric shock. Finally, the four zones described in the first edition have now been reduced to three zones.
SIST HD 60364-7-703:2005 is classified under the following ICS (International Classification for Standards) categories: 91.140.50 - Electricity supply systems; 97.100.10 - Electric heaters. The ICS classification helps identify the subject area and facilitates finding related standards.
SIST HD 60364-7-703:2005 has the following relationships with other standards: It is inter standard links to SIST HD 384.7.703 S1:2000. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
You can purchase SIST HD 60364-7-703:2005 directly from iTeh Standards. The document is available in PDF format and is delivered instantly after payment. Add the standard to your cart and complete the secure checkout process. iTeh Standards is an authorized distributor of SIST standards.
Standards Content (Sample)
SLOVENSKI SIST HD 60364-7-703:2005
STANDARD
november 2005
Električne inštalacije zgradb – 7-703. del: Zahteve za posebne inštalacije ali
lokacije – Sobe in kabine s savna greli
Electrical installations of buildings – Part 7-703: Requirements for special
installations or locations – Rooms and cabins containing sauna heaters
ICS 91.140.50; 97.170 Referenčna številka
© Standard je založil in izdal Slovenski inštitut za standardizacijo. Razmnoževanje ali kopiranje celote ali delov tega dokumenta ni dovoljeno
HARMONIZATION DOCUMENT HD 60364-7-703
DOCUMENT D'HARMONISATION
HARMONISIERUNGSDOKUMENT May 2005
ICS 29.020; 91.140.50 Supersedes HD 384.7.703 S1:1991
English version
Electrical installations of buildings
Part 7-703: Requirements for special installations or locations –
Rooms and cabins containing sauna heaters
(IEC 60364-7-703:2004)
Installations électriques dans Elektrische Anlagen von Gebäuden
les bâtiments Teil 7-703: Anforderungen
Partie 7-703: Exigences pour les für Betriebsstätten, Räume und
installations et emplacements spéciaux – Anlagen besonderer Art –
Locaux contenant des radiateurs pour Räume und Kabinen mit
saunas Saunaheizgeräten
(CEI 60364-7-703:2004) (IEC 60364-7-703:2004)
This Harmonization Document was approved by CENELEC on 2005-03-01. CENELEC members are
bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for
implementation of this Harmonization Document on a national level.
Up-to-date lists and bibliographical references concerning such national implementation may be obtained on
application to the Central Secretariat or to any CENELEC member.
This Harmonization Document exists in three official versions (English, French, German).
CENELEC members are the national electrotechnical committees of Austria, Belgium, Cyprus, Czech
Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden,
Switzerland and United Kingdom.
CENELEC
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
Central Secretariat: rue de Stassart 35, B - 1050 Brussels
© 2005 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. HD 60364-7-703:2005 E
Foreword
The text of document 64/1404/FDIS, future edition 2 of IEC 60364-7-703, prepared by IEC TC 64,
Electrical installations and protection against electric shock, was submitted to the IEC-CENELEC
parallel vote and was approved by CENELEC as HD 60364-7-703 on 2005-03-01.
This European Standard supersedes HD 384.7.703 S1:1991.
The main technical changes with respect to HD 384.7.703 S1:1991 concern the updating of
requirements to take into account the evolution in sauna equipment, with particular emphasis on
prefabricated cabins. In addition, in response to a need from installers, there has been some
elaboration on temperature repartition in saunas as well as protection against electric shock. Finally,
the four zones described in the first edition have now been reduced to three zones.
The following dates were fixed:
– latest date by which the existence of the HD
has to be announced at national level (doa) 2005-06-01
– latest date by which the HD has to be implemented
at national level by publication of a harmonized
national standard or by endorsement (dop) 2005-12-01
– latest date by which the national standards conflicting
with the HD have to be withdrawn (dow) 2008-03-01
Annex ZA has been added by CENELEC.
__________
Endorsement notice
The text of the International Standard IEC 60364-7-703:2004 was approved by CENELEC as a
Harmonization Document without any modification.
__________
- 3 - HD 60364-7-703:2005
Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications
The following referenced documents are indispensable for the application 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.
NOTE Where an International Publication has been modified by common modifications, indicated by (mod), the relevant
EN/HD applies.
Publication Year Title EN/HD Year
1 2)
)
IEC 60335-2-53 – Household and similar electrical appliances - EN 60335-2-53 2003
Safety
Part 2-53: Particular requirements for sauna
heating appliances
1)
IEC 60364-7-701 – Electrical installations of buildings – –
Part 7: Requirements for special installations or
locations
Section 701: Locations containing a bath tub or
shower basin
__________
1)
Undated reference.
2)
Valid edition at date of issue.
NORME CEI
INTERNATIONALE
IEC
60364-7-703
INTERNATIONAL
Deuxième édition
STANDARD
Second edition
2004-10
Installations électriques dans les bâtiments –
Partie 7-703:
Exigences pour les installations
ou emplacements spéciaux –
Locaux contenant des radiateurs pour saunas
Electrical installations of buildings –
Part 7-703:
Requirements for special installations
or locations –
Rooms and cabins containing sauna heaters
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Aucune partie de cette publication ne peut être reproduite ni No part of this publication may be reproduced or utilized in any
utilisée sous quelque forme que ce soit et par aucun procédé, form or by any means, electronic or mechanical, including
électronique ou mécanique, y compris la photocopie et les photocopying and microfilm, without permission in writing from
microfilms, sans l'accord écrit de l'éditeur. the publisher.
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Telephone: +41 22 919 02 11 Telefax: +41 22 919 03 00 E-mail: inmail@iec.ch Web: www.iec.ch
CODE PRIX
H
PRICE CODE
Commission Electrotechnique Internationale
International Electrotechnical Commission
МеждународнаяЭлектротехническаяКомиссия
Pour prix, voir catalogue en vigueur
For price, see current catalogue
60364-7-703 © IEC:2004 – 3 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
ELECTRICAL INSTALLATIONS OF BUILDINGS –
Part 7-703: Requirements for special installations or locations –
Rooms and cabins containing sauna heaters
FOREWORD
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