Download IEC 60079-14 Electrical apparatus for explosive gas by IEC TC/SC 31J PDF
By IEC TC/SC 31J
This a part of IEC 60079 includes the explicit requisites for the layout, choice and erection of electric installations in explosive gasoline atmospheres. those requisites are as well as the necessities for installations in non-hazardous parts. This commonplace applies to all electric apparatus and installations in damaging parts even if everlasting, transitority, transportable, moveable or handheld. It applies to installations in any respect voltages. This regular doesn't observe to - electric installations in mines liable to firedamp; - electric installations in parts the place the possibility is because of flamable dusts or fibres; - inherently explosive events, for instance explosives production and processing; - rooms used for clinical reasons.
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Extra resources for IEC 60079-14 Electrical apparatus for explosive gas atmospheres - Electrical installations in hazardous areas
Example text
60079-14 IEC:2002 – 43 – If electrical testing, for example continuity testing, is necessary to facilitate the installation of hazardous area electrical apparatus, care should be taken to ensure that the testing operation is safe for the hazardous area. This may be achieved in various ways including the appropriate use of test equipment which is certified for hazardous area use. Alternatively, testing shall be carried out in a “gas-free” situation. --``,`,`,,,,`,,,,`,```,``````,`-`-`,,`,,`,`,,`--- NOTE Whenever portable electrical apparatus is used in a hazardous area, extreme care should be taken to avoid unnecessary risks.
Safety isolating transformers for SELV and PELV shall be in accordance with IEC 60742. 5 of IEC 60364-4-41 for the supply of only one item of apparatus. 3 Potential equalization Potential equalization is required for installations in hazardous areas. For TN, TT and IT systems, all exposed and extraneous conductive parts shall be connected to the equipotential bonding system. The bonding system may include protective conductors, metal conduits, metal cable sheaths, steel wire armouring and metallic parts of structures, but shall not include neutral conductors.
4 Electricité statique Lors de la conception d’installations électriques, on doit prendre des dispositions pour réduire à un niveau sûr les effets dus à l’électricité statique. NOTE En l’absence de normes CEI concernant la protection contre l’électricité statique, il convient de se conformer aux normes nationales ou autres. 5 of IEC 60364-4-41, where the circuits may be earthed or unearthed. If the circuits are earthed, the circuit earth and any exposed conductive parts shall be connected to a common potential equalization system.