T/GDWCA 0137-2026 Active Group standards

T/GDWCA 0137-2026 Guidelines for Calculating High-Voltage Cable Current Carrying Capacity and Emergency Load Duration Based on Dynamic Thermal Parameters

Publish Date: 2026-01-12 Implement Date: 2026-01-12 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/GDWCA 0137-2026

Standard Type: Group standards

Standard Status: Active

is_force_gb: no

CCS Name: Normal diagnostic instruments

ICS Name: Cable

Publish Date: 2026-01-12

Implement Date: 2026-01-12

Scope

This document specifies the method of inverting the dynamic thermal parameters of high-voltage cables based on the measured temperatures of their various layers, as well as the method of using the measured dynamic thermal parameters to verify the load-carrying capacity and emergency load of the cables. This document is applicable to single-core cross-linked polyethylene insulated AC power cables with a rated voltage of 110 (66) kV and above. This document is not applicable to the calculation of the conductor temperature of cable accessories.