GB/T 16935.1-2008
Insulation coordination for equipment within low-voltage systems.Part 1:Principles,requirements and tests (English Version)

Standard No.

GB/T 16935.1-2008

Language

Chinese, Available in English version

Release Date

2008

Published By

General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China

Status

Be replaced 2024-04

Replace By

GB/T 16935.1-2023

Latest

GB/T 16935.1-2023

Replace

GB/T 16935.1-1997

Scope

This part of GB/T 16935 specifies the insulation coordination of equipment in low-voltage systems. This part is applicable to equipment with an altitude up to 2000m, a rated voltage up to 1000V AC, a rated frequency up to 30kHz or a DC up to 1500V. According to the performance standard of the equipment, this part specifies the requirements for the clearance, creepage distance and solid insulation of the equipment. This standard includes electrical test methods for insulation coordination. The minimum electrical clearances specified in this standard do not apply where ionized gases are present. Special requirements for such cases are at the discretion of the appropriate product standards technical committee. This section does not involve the determination of the following distances: through liquid insulation; through gases other than air; through compressed air. This part is the electrical basic safety standard, which aims to guide relevant product standard technical committees to formulate relevant requirements reasonably for various equipments responsible for them, so as to achieve the purpose of insulation coordination. This part provides the necessary guidance information for each product standard technical committee to determine the electrical clearance, creepage distance and solid insulation of the equipment in the air. It is the responsibility of the manufacturer and the product standard technical committee to apply the requirements specified in this basic safety standard and, if necessary, refer to them within the scope of the equipment standard. If the relevant product standards do not specify the values of clearances, creepage distances and requirements for solid insulation, or in the absence of standards, this section applies.

GB/T 16935.1-2008 Referenced Document

• GB 156-2003 Standard voltages
• GB/T 11021-1989 Thermal evaluation and classification of electrical insulation
• GB/T 1408.1-2006 Electrical strength of insulating materials-Test methods-Part 1:Tests at power frequencies
• GB/T 16499-1996 Guide to the drafting of electrical safety standards
• GB/T 17045-2006 Protection against electric shock - Common aspects for installation and equipment
• GB/T 17627.1-1998 High-voltage test techniques for low-voltage equipment. Part 1: Definitions, test and procedure requirements
• GB/T 17627.2-1998 High-voltage test techniques for low voltage equipment Part 2 Measuring system and test equipment
• GB/T 2421-1999 Environmental testing for electric and electronic products Part 1: General and guidance
• GB/T 2423.2-2001 Environmental testing for electric and electronic products Part 2: Test methods Tests B: Dry heat
• GB/T 2423.22-2002 Environmental testing for electric and electronic products--Part 2: Test methods Test N: Change of temperature
• GB/T 2423.3-2006 Environmental testing for electric and electronic products-Part 2:Tesing method-Test Cab：Damp heat,steady state
• GB/T 2900.5-2002 Electrotechnical terminology Insulating solids,liquids and gases
• GB/T 2900.57-2002 Electrotechnical terminology--Generation,transmission and distribution of electricity--Operation
• GB/T 4207-2003 Method for determining the comparative and the proof tracking indices of solid insulating materials under moist conditions
• GB/T 7354-2003 Partial discharge measurements

GB/T 16935.1-2008 history

• 2023 GB/T 16935.1-2023 Insulation coordination of equipment within low-voltage power supply systems Part 1: Principles, requirements and tests
• 2008 GB/T 16935.1-2008 Insulation coordination for equipment within low-voltage systems.Part 1:Principles,requirements and tests
• 1997 GB/T 16935.1-1997 Insulation coordination for eguipment within low-voltage systems. Part 1: Principles, requirements and tests

GB/T 16935.1-2008 -All Parts