GB/T 5590-2008

GB/Z 3836.37-2025 Explosive atmospheres—Part 37：Equipment protection by 2-wire intrinsically safe ethernet concept （2-WISE） GB/T 9089.1-1988 Electrical installations for outdoor sites under heavy conditions--Terms and definitions GB/T 18616-2002 Corrugated flexible metallic hose assmeblies for the protection of electrical cables in explosive atomspheres GB/T 19518.2-2004 Electrical apparatus for explosive gas atmospheres--Electrical resistance trace heating--Part 2:Application guide for design，installation and maintenance GB/T 12173-2008 Mining electrical apparatus for non hazardous area GB/T 3836.12-2008 Explosive atmospheres - Part 12: Classification of gases or vapours with air according to their maximum experimental safe gaps and minimum igniting current GB/T 3836.11-2008 Explosive atmospheres - Part 11: Equipment protection by flameproof enclosures "d" - Method of test for ascertainment of maximum experimental safe gap GB/T 22769-2008 Electric bathroom heater (Yuba)