T/LWB 021-2019 Active Group standards

T/LWB 021-2019 Rated voltage 300/500V and below geothermal cables and wires

Publish Date: 2019-12-30 Implement Date: 2020-01-15 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

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Basic Information

Standard Code: T/LWB 021-2019

Standard Type: Group standards

Standard Status: Active

is_force_gb: no

CCS Name: Cables and their accessories

ICS Name: Cable

Publish Date: 2019-12-30

Implement Date: 2020-01-15

Scope

Main technical content: 8.3 Insulation resistance The insulation resistance shall be measured immediately on the same sample and at the same temperature after completing the test specified in 8.4.2. If the tests can be conducted separately, the sample length, preparation, and processing time shall comply with the requirements of 8.4.2. The insulation resistance shall be measured by applying an 80 V to 500 V DC voltage between each conductor and all other conductors and metal shields connected together for 1 minute. The insulation resistance shall be at least 0.03 MΩ·km.