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GB/T 37135-2018Safety requirements for insulated chassis (English PDF)

绝缘机箱的安全要求

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Issued by

SAMR; SAC

Level / Type

National · Recommended

Issue date

December 28, 2018

Implementation date

July 1, 2019

Scope

GB/T 37135-2018 is the English-translated version of 绝缘机箱的安全要求.

GB/T 37135-2018 sets the safety requirements for insulated chassis, the insulating enclosures that house electrical equipment. It covers the installation method and dimensional specifications, environmental adaptability with climatic, biological, chemical, mechanical and vibration and shock tests, and the surface of the enclosure.

The insulation clauses deal with clearances, creepage distances, insulation resistance, leakage current, tracking resistance, impulse and power-frequency withstand voltage, temperature rise and the glow-wire test.

It then fixes electrical performance, including conductor continuity, loop resistance, ratings and terminals, as well as earthing, mechanical properties under impact, collision, free fall and vibration, the enclosure protection (IP) class, rating and marking information, the user manual and the inspection rules. It was issued on 28 December 2018 and has applied since 1 July 2019.

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Document preview — GB/T 37135-2018

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

Foreword
1 Scope
2 Normative references
3 Terms and Definitions
4 Installation method
5 size specification
6 Environmental adaptability requirements and test
6.1 Classification of environmental conditions
6.2 Test sampling
6.3 Test
7 surface
7.1 Requirements
7.2 Inspection and testing
7.3 Qualification judgment
8 insulation performance
8.1 Clearance
8.2 Creepage distance
8.3 Insulation resistance
8.4 Leakage current
8.5 Surface resistance mark
8.6 Withstand voltage test capability
8.7 withstand AC power frequency voltage test capability
8.8 Temperature rise
8.9 Ability to withstand glow wire test
9 Electrical performance
9.1 Conductivity of conductor parts or components
9.2 Loop resistance (including loop resistance difference between phases)
9.3 Rating
9.4 Requirements for terminals
10 ground
10.1 Requirements
10.2 Inspection and inspection
10.3 Conformity Assessment
11 Mechanical properties
11.1 Impact
11.2 Collision
11.3 Free fall
11.4 Vibration
12 enclosure protection class
12.1 Requirements
12.2 Inspection and testing
12.3 Qualification Decision
13 Information
13.1 Rating
13.2 Sign Identification
13.3 User Manual
14 Inspection rules
14.1 Inspection Classification
14.2 Inspection Report

Foreword

This standard was drafted in accordance with the rules given in GB/T 1.1-2009.

1 Scope

This standard specifies the safety related applications, dimensional specifications, environmental adaptability, surface, insulation properties, electrical performance, and connection of insulation chassis. Ground, mechanical properties, enclosure protection levels, inspection rules, and information requirements.

This standard applies to insulated chassis (hereinafter referred to as chassis).

2 Normative references

The following documents are indispensable for the application of this document. For dated references, only dated versions apply to this document. For undated references, the latest edition (including all amendments) applies to this document.

GB/T 2423.1-2008 Environmental testing of electric and electronic products - Part 2: Test methods Test A. Low temperature

GB/T 2423.2-2008 Environmental testing of electrical and electronic products - Part 2: Test methods Test B. High temperature

GB/T 2423.3-2016 Environmental testing - Part 2: Test method test Cab. constant damp heat test

GB/T 2423.4-2008 Environmental testing of electrical and electronic products - Part 2: Test methods Test Db. alternating heat (12h + 12h cycle)

GB/T 2423.5-1995 Environmental testing for electric and electronic products - Part 2: Test methods Test Ea and guide. Impact

GB/T 2423.6-1995 Environmental testing for electric and electronic products - Part 2: Test methods Test Eb and guide. Collision

GB/T 2423.8-1995 Environmental testing for electric and electronic products - Part 2: Test method test Ed. Free fall

GB/T 2423.10-2008 Environmental testing of electric and electronic products - Part 2: Test method test Fc. Vibration (sinusoidal)

GB/T 2423.17-2008 Environmental testing of electric and electronic products - Part 2: Test method test Ka. salt spray

GB/T 2423.22-2012 Environmental testing - Part 2: Test methods Test N. Temperature change

GB/T 2423.24-2013 Environmental testing - Part 2: Test method test Sa. Simulating solar radiation on the ground and its test Inspection guide

GB/T 2423.51-2012 Environmental testing - Part 2: Test method test Ke. flow mixed gas corrosion test

GB/T 4207-2012 Determination of resistance to tracking marks and comparison of electrical tracking index of solid insulating materials

GB/T 4208-2017 enclosure protection grade (IP code)

GB/T 4798.4-2007 Environmental conditions for the application of electric and electronic products - Part 4

GB/T 5169.10-2017 Electrical and electronic products - Fire hazard testing - Part 10: Glowing wire/hot wire basic test method burning Hot wire device and general test method

GB/T 5169.11-2017 Electrical and electronic products - Fire hazard testing - Part 11: Glowing wire/hot wire basic test method Glow wire flammability test method (GWEPT)

GB/T 5465.2-2008 Graphical symbols for electrical equipment - Part 2: Graphical symbols

GB/T 11021-2014 Electrical insulation heat resistance and representation

GB/T 12113-2003 Method for measuring contact current and protective conductor current

GB/T 14048.1-2012 Low-voltage switchgear and control equipment - Part 1: General

GB/T 16842-2016 Cover tester for protection of people and equipment

GB/T 16935.1-2008 Insulation of equipment in low-voltage systems - Part 1: Principles, requirements and tests

GB/T 18663.1-2008 Tests for mechanical structures of electronic equipment and metric series - Part 1. Cabinets, racks, […]

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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 17 pages — is available in the English PDF.

Referenced standards

Normative references

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