T/UNP 52-2026 Active Group standards

T/UNP 52-2026 General technical requirements for power fittings used in de-icing of 500 kV and above transmission lines

Publish Date: 2026-01-14 Implement Date: 2026-01-14 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/UNP 52-2026

Standard Type: Group standards

Standard Status: Active

is_force_gb: no

CCS Name: Normal diagnostic instruments

ICS Name: \nTransmission lines and distribution lines

Publish Date: 2026-01-14

Implement Date: 2026-01-14

Scope

The standard specifies the core technical requirements for ice-melting power fittings for transmission lines with voltages of 500 kV and above. The fittings are classified according to relevant standards and designed with modular, anti-loosening, and anti-corona structures. The dimensional tolerances comply with corresponding specifications. The materials must meet requirements for low loss and anti-aging, and there are regulations for anti-corrosion treatment. Technically, the fittings must meet standards for appearance, mechanical performance, electrical performance, and ice-resistant performance, covering indicators such as breaking load, contact resistance, and ice-covering load. The test methods include multiple inspections of structure, dimensions, and materials. The inspection is divided into factory and type tests, and requirements for marking, packaging, transportation, and storage are also specified. It is applicable to the design, manufacture, testing, and acceptance of fittings.