T/SDWCIA 0005-2021 Active Group standards

T/SDWCIA 0005-2021 "Leader" standard evaluation requirements for 220kV~500kV ultra-high voltage cross-linked cables

Publish Date: 2021-12-16 Implement Date: 2021-12-16 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

Price: $ 20.00

Out of stock

Basic Information

Standard Code: T/SDWCIA 0005-2021

Standard Type: Group standards

Standard Status: Active

is_force_gb: no

CCS Name: Electrician's materials and general parts

ICS Name: Cable

Publish Date: 2021-12-16

Implement Date: 2021-12-16

Scope

Scope: This document specifies the evaluation index system, evaluation methods, and grade classification for the "Leader" standard evaluation of 220kV to 500kV extra-high voltage cross-linked cables. This document applies to the evaluation of enterprise standards for 220kV, 330kV, and 500kV cross-linked polyethylene insulated power cables. Relevant institutions may refer to and use this document when formulating enterprise standard evaluation schemes, and enterprises may use it as a reference when formulating their own enterprise standards. Main Technical Content: 4.2.1 The indicators included in the "Leader" standard for 220kV to 500kV extra-high voltage cross-linked cables are divided into basic indicators, core indicators, and innovative indicators. 4.2.2 Basic Indicators 4.2.2.1 The basic indicators for 220kV cross-linked polyethylene insulated power cables include conductor DC resistance, insulation micro-pores and impurities, semiconductive shield layer-insulation interface micro-pores and protrusions, tgδ, semiconductive shield resistivity, mechanical properties of the outer sheath before and after aging, capacitance, partial discharge, AC voltage, PVC sheath thermal decomposition, outer sheath high-temperature pressure, black polyethylene sheath carbon black content, outer sheath DC voltage, lightning impulse and subsequent AC voltage, thermal cycling voltage, combustion performance, water permeability, and components of the cable with longitudinally wrapped metal foil or metal tape adhered to the outer sheath. 4.2.2.2 The basic indicators for 330kV cross-linked polyethylene insulated power cables include conductor DC resistance, tgδ, semiconductive shield resistivity, mechanical properties of the outer sheath before and after aging, capacitance, partial discharge, AC voltage, PVC sheath thermal decomposition, outer sheath high-temperature pressure, black polyethylene sheath carbon black content, outer sheath DC voltage, lightning impulse and subseq