GB/T 22764.5-2008Cabinets for low-voltage switchgear - Part 5: Basic test methods (English PDF)
低压机柜 第5部分：基本试验方法
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Issued by
SAMR; SAC
Level / Type
National · Recommended
Issue date
December 30, 2008
Implementation date
October 1, 2009
Scope
GB/T 22764.5-2008 is the English-translated version of 低压机柜 第5部分：基本试验方法.
GB/T 22764.5-2008 is the Chinese standard "Cabinets for low-voltage switchgear - Part 5: Basic test methods". Its scope clause reads: This section provides continuity testing method of low mechanical properties test enclosure and protection of electrical circuits.
This section applies to low-voltage cabinet. Its clauses include mechanical characteristics test.
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Document preview — GB/T 22764.5-2008
National Standard of the People's Republic of China
- ICS
- 31.240
- Classification
- K 05
Issued by: State Administration for Market Regulation; Standardization Administration of the PRC
Contents
- 1 Scope
- 2 Normative references
- 3 Mechanical characteristics test
- 3.1 Sample Preparation
- 3.2 Characteristics of static load test
1 Scope
This section provides continuity testing method of low mechanical properties test enclosure and protection of electrical circuits.
This section applies to low-voltage cabinet.
2 Normative references
The following documents contain provisions which, through reference GB/T 22764 in this section constitute provisions of this section. For dated reference documents
Member, all subsequent amendments (not including errata content) or revisions do not apply to this section, however, encouraged to reach under this section
Parties to research agreement to use the latest versions of these documents. For undated reference documents, the latest versions apply to this section.
GB/T 22764.1-2008 Low Voltage cabinet - Part 1. Generic specification
GB/T 22764.4-2008 and low voltage cabinet Part 4. Electrical safety requirements
3 Mechanical characteristics test
3.1 Sample Preparation
3.1.1 Load Sample
Determining the mechanical properties of grade according to GB/T 22764.1-2008 provisions in 8.4.4, load distribution in Figure 1 and Table 1 of the regulation requirements
Fixed place.
Table 1 load prototype load distribution
Rated performance static and dynamic load/kg M3/kg M4/kg
SL5 200 20 100
SL6 400 50 200
SL7 800 80 400
SL8 1000 100 500 (SL9) 2000 200 1000
3.1.2 Empty load sample
Allow installation of more than two horizontal beams or installing electrical mounting plate or bulkhead.
3.1.3 Sample door
Samples can be mounted on the cabinet can also be customized according to test requirements.
3.2 Characteristics of static load test
3.2.1 Test conditions
Samples prepared according to the provisions of 3.1.1 and placed on a flat surface.
3.2.2 Test Procedure
Resting place 1h.
3.2.3 Test Evaluation
Assessment requirements.
a) After removing the load without permanent deformation, and obvious signs of being destroyed;
......
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
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Related Standards
GB/T 22764.4-2008 — Cabinets for low-voltage switchgear - Part 4: Electrical safety requirements
GB/T 22764.3-2008 — Cabinets for low-voltage switchgear - Part 3: Environment and climate
GB/T 22764.2-2008 — Cabinets for low-voltage switchgear - Part 2: Series of dimensions
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GB/T 22764.5-2008
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