GB/T 37751.31-2019Residual current operated circuit-breakers for household and similar use -- Part 3-1: Particular requirements for RCDs with screwless-type terminals for external copper conductors (English PDF)
家用和类似用途的剩余电流动作断路器 第3-1部分：具有连接外部铜导线的无螺纹型接线端子的RCD的特殊要求
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Issued by
State Administration for Market Regulation, China National Standardization Administration
Level / Type
National · Recommended
Issue date
June 4, 2019
Implementation date
January 1, 2020
Scope
GB/T 37751.31-2019 is the English-translated version of 家用和类似用途的剩余电流动作断路器 第3-1部分：具有连接外部铜导线的无螺纹型接线端子的RCD的特殊要求.
GB/T 37751.31-2019 is the Chinese standard "Residual current operated circuit-breakers for household and similar use -- Part 3-1: Particular requirements for RCDs with screwless-type terminals for external copper conductors".
Its scope clause reads: This part of GB/T 37751 is applicable to RCDs with unthreaded terminals with rated current not exceeding 20A. The terminal blocks are mainly used to connect untreated (see 3.5) copper conductors with a cross-sectional area of 4 mm2.
This section cannot be used alone. For RCDs with unthreaded terminals, this part and the RCD product standard (IEC 61008- 1 or IEC 61009-1) used together. In this section, the non-threaded terminal block is called a terminal block, and the copper wire is called a wire. Its clauses include terms and definitions.
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Document preview — GB/T 37751.31-2019
National Standard of the People's Republic of China
- ICS
- 29.120.50
- Classification
- K 31
Issued by: State Administration for Market Regulation, China National Standardization Administration
Contents
- Foreword
- 1 Scope
- 2 Normative references
- 3 Terms and Definitions
- 4 Category
- 5 RCD features
- 6 logo and other product information
- 7 Standard operating conditions for use and installation
- 8 Structure and operation requirements
- 9 test
1 Scope
This part of GB/T 37751 is applicable to RCDs with unthreaded terminals with rated current not exceeding 20A.
The terminal blocks are mainly used to connect untreated (see 3.5) copper conductors with a cross-sectional area of 4 mm2.
This section cannot be used alone. For RCDs with unthreaded terminals, this part and the RCD product standard (IEC 61008-
1 or IEC 61009-1) used together.
In this section, the non-threaded terminal block is called a terminal block, and the copper wire is called a wire.
2 Normative references
The following documents are indispensable for the application of this document. For dated references, only dated versions apply to this article.
Pieces. For undated references, the latest edition (including all amendments) applies to this document.
IEC 61008-1 Residual current operated circuit-breakers (RCCB) without overcurrent protection for household and similar purposes - Part 1. 1
General rule [Residualcurrentoperatedcircuit-breakers without integralovercurrentprotectionfor
Householdandsimilaruses(RCCBs)-Part 1.Generalrules]
IEC 61009-1 Residual current operated circuit breakers (RCBO) with overcurrent protection for household and similar purposes - Part 1. General
Rule [Residualcurrentoperatedcircuit-breakerswithintegralovercurrentprotectionforhouseholdand
Similaruses(RCBOs)-Part 1.Generalrules]
Residual current operated circuit breakers for household and similar purposes - Part 2. Residual current electrical appliances (RCD) vocabulary [Re-
Sidualcurrentoperatedcircuit-breakersforhouseholdandsimilaruses-Part 2.Residualcurrentde-
Vices(RCDs)-Vocabulary]
3 Terms and definitions
The following terms and definitions as defined by IEC 62873-2 apply to this document.
3.1 Clamping unit
The components necessary for mechanical clamping and electrical connection of the conductors in the terminals, including the components necessary to ensure normal contact pressure.
3.2 Universal terminal block
Terminal block for connecting and removing all type conductors (hard and soft).
3.3 Non-universal terminal block
Used only to connect and disconnect certain wires [for example, only for hard solid wires or terminals for hard (solid or stranded) wires only].
GB/T 41589 | GB/T 40820 | GB/T 37751.32 | GB/T 10963.3 | GB/T 37751.2 | GB/T 37751.1 | […]
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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 24 pages — is available in the English PDF.
Referenced standards
Normative references
IEC 61008 · IEC 61009
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Related Standards
GB/T 37751.32-2019 — Residual current operated circuit-breakers for household and similar use -- Part 3-2: Particular requirements for RCDs with flat quick-connect terminations
GB/T 37751.2-2019 — Residual current operated circuit-breakers for household and similar use -- Part 2: Residual current devices (RCDs) -- Vocabulary
GB/T 37751.33-2019 — Residual current operated circuit-breakers for household and similar use -- Part 3-3: Specific requirements for RCDs with screw-type terminals for external untreated aluminium conductors and with aluminium screw-type terminals for use with copper or with
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