SS 254 Pt.3A-1981
SPECIFICATION FOR Electrical Apparatus for Explosive Gas Atmospheres Part 3A : Construction and Test of Intrinsically-safe and Associated Apparatus

Standard No.

SS 254 Pt.3A-1981

Release Date

1981

Published By

SG-SPRING SG

Latest

SS 254 Pt.3A-1981

Scope

This specification applies to electrical apparatus, or parts of such apparatus, intended for use in explosive atmospheres, in which the electrical circuits themselves are incapable of causing ignition. This specification applies not only to apparatus or parts of apparatus in the hazardous area, but also to any parts located outside the hazardous area, where the intrinsic safety of the electrical circuits in the hazardous area may be influenced by the design and construction of such parts. This specification must be read in conjunction with SS 254 : Part 0.

SS 254 Pt.3A-1981 history

• 1981 SS 254 Pt.3A-1981 SPECIFICATION FOR Electrical Apparatus for Explosive Gas Atmospheres Part 3A : Construction and Test of Intrinsically-safe and Associated Apparatus