GB 50058-2014 Explosive atmospheres (China) — translation

GB 50058-2014: zones 0/1/2 and 20/21/22, Ex equipment, cables.

🇷🇺 PUE — Rules for Electrical Installations (7th ed.)🕰️ PUE-6 — Rules for Electrical Installations (6th ed., 1985)🇺🇸 NEC — National Electrical Code (NFPA 70)🇪🇺 IEC 60364 / HD 60364 (EU national codes)🌎 NOM-001-SEDE, NBR 5410, AEA 90364, RETIE, NCh 4, CNE 🇨🇳 GB 50054, GB 50303, JGJ 16, GB/T 16895 (IEC 60364)🇮🇳 IS 732

Document

Document	GB 50058-2014 Explosive atmospheres (China)
Edition	2014
Status	Current (mandatory, GB)
Issued by	MOHURD China
Applies to	Explosive zones: 0/1/2 (gases) and 20/21/22 (dust)

Document structure

№	Chapter / section
3	Zone classification
4–5	Ex equipment selection
6	Installation, cables, earthing

GB 50054-2011 Code for design of low-voltage electrical installations GB 50303-2015 Acceptance of building electrical works JGJ 16-2008 Electrical design of civil buildings GB 50096-2011 Residential design code, section 8 GB 50057-2010 Building lightning protection code GB 51348-2019 Civil buildings electrical design standard GB 50168-2018 Cable line installation GB 50052-2009 Supply reliability (China)GB 50058-2014 Explosive atmospheres (China)

Zones (3)

Gases: 0 (continuous), 1 (normal operation), 2 (unlikely/short); dust: 20/21/22 — per IEC 60079-10.

Equipment (4–5)

Ex per GB 3836 (IEC 60079): zone 0 — intrinsic safety "ia" only; zone 1 — "d"/"e"/"i"; zone 2 — Ex with limits.

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Data is for reference. Final design decisions must follow current regulations and a qualified engineer.
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