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GB 51348-2019 Civil buildings electrical design standard — translation

The new Chinese code GB 51348-2019 (replacing JGJ 16-2008): structure, key changes — RCDs, lightning, EV charging.

🇷🇺 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

DocumentGB 51348-2019 Civil buildings electrical design standard
Edition2019
StatusCurrent (mandatory, GB) — replaced JGJ 16-2008 since 1.08.2020
Issued byMOHURD China
Applies toElectrical design of civil buildings: the new Chinese code

Document structure

№Chapter / section
1–3General, terms
3–6Supply, substations, standby sources
7LV distribution, RCDs
8–10Wiring, lighting
11–13Lightning, earthing, fire alarm
14–24Low-current and IT systems
GB 50054-2011 Code for design of low-voltage electrical installationsGB 50303-2015 Acceptance of building electrical worksJGJ 16-2008 Electrical design of civil buildingsGB 50096-2011 Residential design code, section 8GB 50057-2010 Building lightning protection codeGB 51348-2019 Civil buildings electrical design standardGB 50168-2018 Cable line installationGB 50052-2009 Supply reliability (China)GB 50058-2014 Explosive atmospheres (China)

Overview

GB 51348-2019 in force since 1 August 2020, replacing JGJ 16-2008. Promoted from industry (JGJ) to national (GB) status — mandatory.

Key provisions

220/380 V, TN-S/TN-C-S/TT; 30 mA RCDs for dwelling sockets (forbidden in TN-C); reinforced SPD requirements; EV charging circuits; fire systems — category 1; energy efficiency.

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