NB/T 11307.2-2024 Active Industry standards-Energy

NB/T 11307.2-2024 Guidelines for Fire Hazard Evaluation of Electric Equipment and Materials Part 2: Oil-immersed Transformer

Publish Date: 2024-09-24 Implement Date: 2025-03-24 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: NB/T 11307.2-2024

Standard Type: Industry standards

Standard Status: Active

is_force_gb: no

CCS Name: Electrician's insulating materials and their products

ICS Name: Other insulating materials

Publish Date: 2024-09-24

Implement Date: 2025-03-24

Scope

This document specifies the fire hazard test methods for solid insulating materials used in oil-immersed transformers (or oil-immersed reactors), the determination method of the flash point of insulating oil, the arc test method for transformer insulating oil, and the assessment of the fire hazard level of materials and transformer products. This document is applicable to oil-immersed transformers (or oil-immersed reactors) with voltage ratings of 10kV and above, and to the assessment of the fire hazard level of materials such as insulating paperboard, epoxy resin, silicone rubber, wire insulation, and insulating oil used in transformer products. Other voltage-rated oil-immersed transformers and transformers insulated with natural esters or synthetic esters can refer to and implement this document accordingly.