GB/T 14546-2025 Active National standards

GB/T 14546-2025 Practice for the design of DC auxiliary power system for nuclear power plants

GB/T 14546-2025 Practice for the design of DC auxiliary power system for nuclear power plants

Publish Date: 2025-08-01 Implement Date: 2026-02-01 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

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Basic Information

Standard Code: GB/T 14546-2025

Standard Type: National standards

Standard Status: Active

is_force_gb: no

CCS Name: Reactor and nuclear power plant safety distribution equipment

ICS Name: Nuclear power stations, safety

Publish Date: 2025-08-01

Implement Date: 2026-02-01

Pages: 36 pages

Scope

This document specifies the implementation methods for the design of the DC power system of nuclear power plants.
This document applies to the design of lead-acid batteries, stationary charging devices, and DC distribution equipment in DC power systems, including the selection of the number and types of equipment; the determination of equipment ratings; mutual connections; and the selection of instrumentation, control, and protection systems.
This document does not apply to the AC power supply of charging devices and the loads supplied by DC power systems (unless they affect the design of the DC power system), nor to the start-up battery systems dedicated to locomotives.
If the following special application scenarios have independently set up separate battery or uninterruptible power supply systems, they are not within the scope of this document:
a) Engine (starting);
b) Emergency lighting;
c) Fire detection and alarm;
d) Fire driving.

Development Information

Word Count: 54 Thousand words Pages: 36 pages

Replace the following standards

GB/T 14546-2008 Recommended practice for the design of DC auxiliary power system for nuclear power stations

Referenced Standards

GB/T 3859.1-1993 Semiconductor convertors—Specification of basic requirements GB/T 3859.1-2013 Semiconductor converters—General requirements and line commutated converters—Part 1-1:Specification of basic requirements GB/T 3859.2-1993 Semiconductor convertors—Application guide GB/T 3859.2-2013 Semiconductor converters—General requirements and line commutated converters—Part 1-2:Application guide GB/T 3859.3-1993 Semiconductor convertors—Transformers and reactors GB/T 3859.3-2013 Semiconductor converters—General requirements and line commutated converters—Part 1-3:Transformers and reactors GB/T 3859.4-2004 Semiconductor converter—Self-commutated semiconductor converters including direct d.c.converters GB/T 12727-2002 Nuclear power plants—Electrical equipment of the safety system—Qualification GB/T 12727-2017 Qualification of safety class electrical equipment for nuclear power plants GB/T 12727-2023 Qualification of electrical equipment important to safety for nuclear power plants GB/T 13286-2001 Criteria for independence of class IE equipment and circuits in nuclear power plants GB/T 13286-2008 Criteria for independence of class 1E equipment and circuits in nuclear power plants GB/T 13286-2021 Criteria for independence of class 1E equipment and circuits in nuclear power plants GB/T 15473-1995 Qualification of class 1E static battery chargers and inverters for nuclear power plants GB/T 15473-2011 Qualification of class 1E static battery chargers and inverters for nuclear power plants GB/T 15473-2025 Qualification of class 1E static battery chargers,inverters and uninterruptible power supply systems for nuclear power plants GB 50217-2018 Standard for design of cables of electric power engineering NB/T 20028.1-2010 Nuclear Power Plant Batteries Part 1: Capacity Determination NB/T 20028.2-2010 Nuclear Power Plant Batteries - Part 2: Installation, Design and Installation Guidelines NB/T 20028.4-2010 Nuclear power plant battery - Part 4: Maintenance, testing and replacement methods NB/T 20080-2012 Qualification of class 1E lead storage batteries for nuclear power plants NB/T 20420-2017 The safety-rated cables and connectors for nuclear power plants

Related Standards

GB 6249-1986 Replaced

GB 6249-1986 Regulations for environmental rediation protection of nuclear power plant

Publish Date: 1986-04-23

GB/T 12726.1-1991 Replaced

GB/T 12726.1-1991 Radiation monitoring equipment for accident and post-accident conditions in nuclear power plants—Part 1:General requirements

Publish Date: 1991-02-07

GB/T 13178-1991 Replaced

GB/T 13178-1991 Partially depleted gold silicon surface barrier detectors

Publish Date: 1991-04-11

GB/T 13180-1991 Replaced

GB/T 13180-1991 G-M counter tubes for detecting γ radiation

Publish Date: 1991-04-11

GB/T 13182-1991 Replaced

GB/T 13182-1991 Scintillation detectors of sodium iodide (thallium)

Publish Date: 1991-04-11

GB/T 12726.2-1991 Replaced

GB/T 12726.2-1991 Radiation monitoring equipment for accident and post-accident conditions in nuclear power plants—Part 2:Specific requirements for equipment for continuously monitoring radioactive noble gases in gaseous effluents

Publish Date: 1991-09-03