T/LWB 020-2020 Active Group standards

T/LWB 020-2020 Halogen-free, low smoke, flame-retardant and fire-resistant medium-voltage power cables

Publish Date: 2020-01-01 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 020-2020

Standard Type: Group standards

Standard Status: Active

is_force_gb: no

CCS Name: Electrician's materials and general parts

ICS Name: Cable

Publish Date: 2020-01-01

Implement Date: 2020-01-15

Scope

Main technical content: 3.2.1 The conductor shielding, insulation, and insulation shielding are formed by co-extrusion in three layers and are wrapped on the conductor or semi-conductive tape. 3.2.2 The conductor shielding uses co-extruded cross-linked semi-conductive shielding material. The semi-conductive layer should be evenly wrapped on the conductor, and the interface between it and the insulation layer should be smooth without obvious twisting patterns; there should be no sharp corners, particles, burnt marks, or scratches. For cables with a cross-section of 500 mm2 or more and a voltage of 35 kV, the conductor shielding should be composed of a semi-conductive tape and a co-extruded semi-conductive layer.