GB 50257-1996 Code for construction and acceptance of electric device for explosion atmospheres and fire hazard electrical equipment installation engineering(Text of Document is in English)

01/12/1996

48P

$60.00 USD

1 General Principles
2 Installation of Explosion-Proof Electric Apparatus
2.1 General stipulations
2.2 Installation of Explosion-insulation Electric Apparatus
2.3 Installation of Safety-Enhanced Type and Non-Spark Type Electric Apparatus
2.4 Installation of Positive-Pressure Electric Apparatus
2.5 Installation of Oil-Filled Electric Apparatus
2.6 InstaIlation of Intrinsically-Safe Electric Apparatus
2.7 Installation of Dust Explosion-Proof Electric Apparatus
3 Electric Lines at Explosion Hazard Locations
3.1 General Stipulations
3.2 Cable Line at Explosion Hazard Locations
3.3 Steel Conduit Wiring at Explosion Hazard Locations
3.4 Line of Intrinsically-safe Electric Apparatus and Associated Electric Apparatus
4 Electric Apparatus at Fire Hazard Locations
4.1 lnstallation of Electric Apparatus
4.2 Electric Line 5 Earthing
5.1 Protective Earthing
5.2 Anti-Static Earthing
6 Transference and Acceptance
Appendix A Electric Gap and creepage Distance between Bare Charged Sections and that
between Such Sections and Metal Casing of Explosion-Proof Electric Apparatus
Additional Explanation
Explanation on Articles