265
G
Installation and Operating
Precautions for JIS Flameproof
Equipment
Apparatus Certified Under Technical Criteria (IEC-compatible Standards)
General
The following describes precautions on electrical apparatus of flameproof construction
(hereinafter referred to as flameproof apparatus) in explosion-protected apparatus.
Following the Labour Safety and Health Laws of Japan, flameproof apparatus is subjected
to type tests to meet either the technical criteria for explosion proof electrical machinery and
equipment (standards notification no.556 from the Japanese Ministry of Labour) (hereinafter
referred to as technical criteria), in conformity with the IEC Standards, or the Recommended
Practice for Explosion-Protected Electrical Installations in General Industries, published in
1979. These certified apparatus can be used in hazardous locations where explosive or
inflammable gases or vapors may be present.
Certified apparatus includes a certification label and an equipment nameplate with the
specifications necessary for explosion requirements as well as precautions on explosion
protection.
Confirm these precautionary items and use them to meet specification requirements.
For electrical wiring and maintenance servicing, please refer to Internal Wiring Rules in the
Electrical Installation Technical Standards as well as USER’S GUIDELINES for Electrical
Installations for Explosive Gas Atmospheres in General Industry, published in 1994.
To meet flameproof requirements, equipment that can be termed flameproof must:
(1) Be certified by a Japanese public authority in accordance with the Labour Safety and
Health Laws of Japan and have a certification label in an appropriate location on its case,
and
(2) Be used in compliance with the specifications marked on its certification label,
equipment nameplate and precautionary information furnished.
To Next Page
Loading...
Need help?
General
