IEC 60364-7-706
Low-voltage electrical installations - Part 7-706: Requirements for special installations or locations - Conducting locations with restricted movement
Low-voltage electrical installations - Part 7-706: Requirements for special installations or locations - Conducting locations with restricted movement
The particular requirements of this part apply to fixed equipment in conducting locations where movement of persons is restricted by the location, and to supplies for portable equipment for use in such locations.[
]A conducting location with restricted movement is comprised mainly of metallic or other conductive surrounding parts, within which it is likely that a person will come in contact through a substantial portion of his body with the metallic or other conductive surrounding parts and where the possibility of interrupting this contact is limited.
Installations électriques basse tension - Partie 7-706: Exigences pour les installations ou emplacements spéciaux - Enceintes conductrices exiguës
Les exigences particulières de la présente partie s'appliquent aux matériels fixes des enceintes conductrices exiguës et à l'alimentation des appareils portatifs à l'intérieur de ces enceintes.[
]Une enceinte conductrice exiguë est un local ou emplacement de travail dont les parois sont essentiellement constituées de parties métalliques ou conductrices, à l'intérieur duquel une personne peut venir en contact, sur une partie importante de son corps, avec les parties conductrices environnantes et dont l'exiguïté limite les possibilités d'interrompre ce contact.
Nizkonapetostne električne inštalacije – 7-706. del: Zahteve za posebne inštalacije ali lokacije – Prevodni prostori z omejenim gibanjem
General Information
- Status
- Not Published
- Technical Committee
- TC 64 - Electrical installations and protection against electric shock
- Current Stage
- PPUB - Publication issued
- Start Date
- 19-Oct-2005
Overview
IEC 60364-7-706 is an international standard published by the International Electrotechnical Commission (IEC) that addresses low-voltage electrical installations in conducting locations with restricted movement. This specialized part of the IEC 60364 series focuses on the unique requirements for fixed and portable equipment used in environments where individuals are likely to be in contact with conductive materials and cannot easily break contact due to limited movement space.
The standard is essential for ensuring electrical safety in critical applications where metallic or conductive surroundings dominate, such as confined industrial spaces, tanks, or metal enclosures. It sets out protection measures against electric shock tailored to these high-risk locations, emphasizing the safe design, installation, and supply of electrical equipment.
Key Topics
Scope of Application
Applies to fixed equipment and supplies for portable equipment in conducting locations where movement is severely limited, making it likely for a person to be in contact with conductive parts over a significant body area.Protective Measures Against Electric Shock
- Supply to hand-held tools and portable equipment must use SELV (Separated Extra-Low Voltage) or electrical separation with isolated transformers.
- Handlamps are supplied exclusively by SELV to minimize shock risk.
- Fixed equipment supplies may use:
- Automatic supply disconnection combined with supplementary equipotential bonding,
- SELV,
- PELV (Protective Extra-Low Voltage) with equipotential bonding (where allowed, noting restrictions like in France and Italy),
- Electrical separation with specified conditions, or
- Class II equipment with additional residual current device (RCD) protection.
Equipotential Bonding and Earthing
The standard requires comprehensive equipotential bonding between all conductive parts within the location and the connection of the low-voltage system earth or functional earth to ensure safety.Restrictions on Protective Methods
Protection by physical obstacles or placing electrical parts out of reach is strictly prohibited due to the nature of restricted movement environments.Source Placement
SELV and PELV power sources must generally be located outside the restricted conducting space unless integrated as fixed installations.
Applications
IEC 60364-7-706 is highly relevant for industries and installations where restricted movement conducting locations are common, including:
Industrial Tank Cleaning and Maintenance
Workers inside metal tanks or confined spaces with conductive walls use equipment compliant with this standard to prevent electric shocks.Confined Metallic Enclosures
Equipment installed inside metallic rooms or compartments where a person can simultaneously contact multiple conductive surfaces.Welding and Metal Fabrication Areas (referencing IEC 62081 for welding specifics)
Environments with metallic surroundings where movement is restricted and additional protections are essential.Portable and Fixed Electrical Tools in Conductive Environments
Ensuring tools and fixed installations meet SELV, PELV, or equivalent insulation and bonding requirements to safeguard workers.
Related Standards
- IEC 60364 Series - General standards for low-voltage electrical installations, including Part 7 for special locations.
- IEC 62081 - Technical Specification for arc welding equipment installations, related to conducting locations.
- Residual Current Device (RCD) Standards - Used in conjunction with IEC 60364-7-706 for additional protective measures.
- National Regulations and Standards - Some countries like France, Italy, Ireland, and Switzerland have specific adaptations or restrictions in applying certain protective methods covered by IEC 60364-7-706.
IEC 60364-7-706 plays a critical role in protecting individuals working in environments where movement is restricted and metallic contact is unavoidable by prescribing detailed electrical installation requirements and safety measures. Applying this standard ensures compliance with international best practices and enhances safety for personnel operating in hazardous electrical environments.
Frequently Asked Questions
IEC 60364-7-706 is a standard published by the International Electrotechnical Commission (IEC). Its full title is "Low-voltage electrical installations - Part 7-706: Requirements for special installations or locations - Conducting locations with restricted movement". This standard covers: The particular requirements of this part apply to fixed equipment in conducting locations where movement of persons is restricted by the location, and to supplies for portable equipment for use in such locations.[<BR>]A conducting location with restricted movement is comprised mainly of metallic or other conductive surrounding parts, within which it is likely that a person will come in contact through a substantial portion of his body with the metallic or other conductive surrounding parts and where the possibility of interrupting this contact is limited.
The particular requirements of this part apply to fixed equipment in conducting locations where movement of persons is restricted by the location, and to supplies for portable equipment for use in such locations.[<BR>]A conducting location with restricted movement is comprised mainly of metallic or other conductive surrounding parts, within which it is likely that a person will come in contact through a substantial portion of his body with the metallic or other conductive surrounding parts and where the possibility of interrupting this contact is limited.
IEC 60364-7-706 is classified under the following ICS (International Classification for Standards) categories: 29.020 - Electrical engineering in general; 91.140.50 - Electricity supply systems. The ICS classification helps identify the subject area and facilitates finding related standards.
IEC 60364-7-706 is available in PDF format for immediate download after purchase. The document can be added to your cart and obtained through the secure checkout process. Digital delivery ensures instant access to the complete standard document.
Standards Content (Sample)
SLOVENSKI SIST IEC 60364-7-706:2006
STANDARD
september 2006
Nizkonapetostne električne inštalacije – 7-706. del: Zahteve za posebne
inštalacije ali lokacije – Prevodni prostori z omejenim gibanjem
Low-voltage electrical installations - Part 7-706: Requirements for special
installations or locations - Conducting locations with restricted movement
ICS 91.140.50 Referenčna številka
© Standard je založil in izdal Slovenski inštitut za standardizacijo. Razmnoževanje ali kopiranje celote ali delov tega dokumenta ni dovoljeno
NORME CEI
INTERNATIONALE
IEC
60364-7-706
INTERNATIONAL
Deuxième édition
STANDARD
Second edition
2005-10
Installations électriques basse tension –
Partie 7-706:
Exigences pour les installations
ou emplacements spéciaux –
Enceintes conductrices exiguës
Low-voltage electrical installations –
Part 7-706:
Requirements for special
installations or locations –
Conducting locations with restricted movement
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Commission Electrotechnique Internationale
International Electrotechnical Commission
МеждународнаяЭлектротехническаяКомиссия
Pour prix, voir catalogue en vigueur
For price, see current catalogue
60364-7-706 IEC:2005 – 3 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
___________
LOW-VOLTAGE ELECTRICAL INSTALLATIONS –
Part 7-706: Requirements for special installations or locations –
Conducting locations with restricted movement
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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equipment declared to be in conformity with an IEC Publication.
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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 60364-7-706 has been prepared by IEC technical committee 64:
Electrical installations and protection against electric shock.
This second edition cancels and replaces the first edition published in 1983 and constitutes a
technical revision.
The main changes with respect to the previous edition are as follows:
– only SELV and electrical separation are allowed for all portable equipment not just measur-
ing equipment.
– PELV is allowed for the supply to fixed equipment, and the use of class II equipment or
equivalent is allowed to supply fixed equipment if additional protection is provided by an
RCD.
60364-7-706 IEC:2005 – 5 –
The text of this standard is based on the following documents:
FDIS Report on voting
64/1478/FDIS 64/1493/RVD
Full information on the voting for the approval of this standard can be found in the report on
voting indicated in the above table.
This publication has been drafted in accordance with the ISO/IEC Directives, Part 2.
Future standards in this series will carry the new general title as cited above. Titles of existing
standards in this series will be updated at the time of the next edition.
IEC 60364 consists of the following parts, under the general title Low-voltage electrical
installations:
Part 1: Fundamental principles, assessment of general characteristics, definitions
Part 2: Void
Part 3: Void
...
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