NB/T 20052-2011
The design and installation of cable systems for class 1E circuits in nuclear power plants (English Version)

Standard No.

NB/T 20052-2011

Language

Chinese, Available in English version

Release Date

2011

Published By

Professional Standard - Energy

Latest

NB/T 20052-2011

Replace

EJ/T 534-1991

Scope

This standard specifies the design and installation requirements for safety-level circuit cable systems in nuclear power plants. This standard applies to the design and installation of safety-level and related circuit cable systems in nuclear power plants. It also provides guidance for the design and installation of non-safety-level circuit cable systems that may affect the functions of the safety system.

NB/T 20052-2011 Referenced Document

• EJ/T 705 Type test of class 1E electric cables and field splices for nuclear power plants
• GB 50116 Code for design of automatic fire alarm system*， 2013-09-06 Update
• GB/T 12727 Appraisal of electrical equipment important to safety in nuclear power plants*， 2023-05-23 Update
• GB/T 13286-2008 Criteria for independence of class 1E equipment and circuits in nuclear power plants
• GB/T 18380.1 Tests on electric cables under fire conditions Part 1: Test on a single vertical insulated wire or cable
• GB/T 18380.11 Tests on electric and optical fibre cables under fire conditions—Part 11:Test for vertical flame propagation for a single insulated wire or cable—Apparatus*， 2022-03-09 Update
• GB/T 18380.12 Tests on electric and optical fibre cables under fire conditions—Part 12:Test for vertical flame propagation for a single insulated wire or cable—Procedure for 1 kW pre-mixed flame*， 2022-03-09 Update
• GB/T 18380.13 Tests on electric and optical fibre cables under fire conditions—Part 13:Test for vertical flame propagation for a single insulated wire or cable—Procedure for determination of flaming droplets/particles*， 2022-03-09 Update
• GB/T 18380.2 Tests on electric cables under fire conditions Part 2: Test on a single amall vertical insulated copper wire or cable
• GB/T 18380.21 Tests on electric and optical fibre cables under fire conditions.Part 21:Test for vertical flame propagation for a single small insulated wire or cable.Apparatus
• GB/T 18380.22 Tests on electric and optical fibre cables under fire conditions.Part 22:Test for vertical flame propagation for a single small insulated wire or cable.Procedure for diffusion flame
• GB/T 18380.3 Tests on electric cables under fire conditions Part 3: Test on bunched wires or cables
• GB/T 18380.31 Tests on electric and optical fibre cables under fire conditions—Part 31: Test for vertical flame spread of vertically-mounted bunched wires or cables—Apparatus*， 2022-03-09 Update
• GB/T 18380.32 Tests on electric and optical fibre cables under fire conditions—Part 32：Test for vertical flame spread of vertically-mounted bunched wires or cables—Category A F/R*， 2022-04-15 Update
• GB/T 18380.33 Tests on electric and optical fibre cables under fire conditions—Part 33：Test for vertical flame spread of vertically-mounted bunched wires or cables—Category A*， 2022-04-15 Update
• GB/T 18380.34 Tests on electric and optical fibre cables under fire conditions—Part 34：Test for vertical flame spread of vertically-mounted bunched wires or cables—Category B*， 2022-04-15 Update
• GB/T 18380.35 Tests on electric and optical fibre cables under fire conditions—Part 35：Test for vertical flame spread of vertically-mounted bunched wires or cables—Category C*， 2022-03-09 Update
• GB/T 18380.36 Tests on electric and optical fibre cables under fire conditions—Part 36：Test for vertical flame spread of vertically-mounted bunched wires or cables—Category D*， 2022-03-09 Update
• IEEE 1050 Guide for Instrumentation and Control Equipment Grounding in Generating Stations
• IEEE 1143 Guide on Shielding Practice for Low Voltage Cables*， 2012-12-05 Update
• IEEE 525 Guide for the Design and Installation of Cable Systems in Substations*， 2016-06-30 Update
• IEEE 946 IEEE Recommended Practice for the Design of DC Power Systems for Stationary Applications
• NB/T 20049 Cable-penetration fire stop qualification test
• NB/T 20053 Installation requirement of electric,instrumentation and control equipment important to safety of nuclear power plant

NB/T 20052-2011 history

• 2011 NB/T 20052-2011 The design and installation of cable systems for class 1E circuits in nuclear power plants
• 1991 EJ/T 534-1991 Design and installation of safety level circuit and cable system in nuclear power plant

NB/T 20052-2011 The design and installation of cable systems for class 1E circuits in nuclear power plants has been changed from EJ/T 534-1991 Design and installation of safety level circuit and cable system in nuclear power plant.