NB/T 20284-2014Technical specification for safety class cable heat-shrinkable accessories in nuclear power plants (English PDF)
核电厂安全级电缆热缩附件技术条件
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Issued by
NEA
Level / Type
Industry · Recommended
Issue date
June 29, 2014
Implementation date
November 1, 2014
Scope
NB/T 20284-2014 is the English-translated version of 核电厂安全级电缆热缩附件技术条件.
NB/T 20284-2014 is a recommended energy industry standard of China that deals with heat-shrinkable accessories for safety class cables in nuclear power plants. It fixes the structure and the performance requirements of these accessories and the type tests, routine tests and sampling tests used to verify them, together with installation testing.
The standard also gives the principles for selecting an accessory and the rules for marking, packaging, transport and storage. Its cited documents include GB/T 1695, GB/T 2406.2, GB/T 2951.11, GB/T 3048.3, GB/T 12706.4, GB/T 17650.1, GB/T 18380.12, GB/T 26168.2, GB 50150, NB/T 20063-2012 and NB/T 20213-2013. Issued on 29 June 2014, it has applied since 1 November 2014.
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Document preview — NB/T 20284-2014
National Standard of the People's Republic of China
- ICS
- 27.120.20
Issued by: National Energy Administration of the People's Republic of China
Contents
- 2 Normative references
2 Normative references
NB/T 20284-2014 cites the following standards, which apply in full or in part through the references made to them in its clauses.
GB/T 1695
GB/T 2406.2
GB/T 2951.11
GB/T 2951.13
GB/T 3048.3
GB/T 3048.5
GB/T 3048.8
GB/T 3048.14
GB/T 12706.4
GB/T 17650.1
GB/T 17650.2
GB/T 17651.2
GB/T 18380.12
GB/T 18889-2002
GB/T 26168.2
GB 50150
NB/T 20063-2012
NB/T 20213-2013
......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 15 pages — is available in the English PDF.
Referenced standards
Normative references
- GB/T 1695Rubber, vulcanized - Determination of electrical breakdown strength and voltage resistant at commercial power frequency
- GB/T 2406.2Plastics -- Determination of burning behaviour by oxygen index -- Part 2: Ambient-temperature test
- GB/T 2951.11Common test methods for insulating and sheathing materials of electric and optical cables -- Part 11: Methods for general application -- Measurement of thickness and overall dimensions -- Tests for determining the mechanical properties
- GB/T 2951.13Common test methods for insulating and sheathing materials of electric and optical cables -- Part 13: Methods for general application -- Measurement for determining the density -- Water absorption tests -- Shrinkage test
- GB/T 3048.3Test methods for electrical properties of electric cables and wires - Part 3: Test of volume resistivity of semi-conducting rubbers and plastics
- GB/T 3048.5Test methods for electrical properties of electric cables and wires - Part 5: Test of insulation resistance
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Related Standards
GB 50150-2016 — Electric equipment installation engineering-standard for hand-over test of electric equipment
GB/T 12706.4-2020 — Power cables with extruded insulation and their accessories for rated voltages from 1 kV (Um=1.2 kV) up to 35 kV (Um=40.5 kV) - Part 4: Test requirements on accessories for cables with rated voltages from 6 kV (Um=7.2 kV) up to 35 kV (Um=40.5 kV)
GB/T 1695-2005 — Rubber, vulcanized - Determination of electrical breakdown strength and voltage resistant at commercial power frequency
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NB/T 20284-2014
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