How do Chinese (GB) and International naming conventions for high-temperature cables differ?

In the international market, high-temperature cables are identified by their material acronyms (like PTFE, FEP), their UL AWM style numbers (e.g., UL 3122), or IEC classifications. The Chinese system uses the GB (Guobiao) standard, relying on specific Pinyin initials to indicate the chemical makeup of the insulation.

Chinese System (GB/T): Common models include AF (Fluoroplastic insulation), YG (Silicone rubber), and GN (Fire-resistant/Mica). For instance, an AF-200 indicates a fluoroplastic wire rated for 200℃.

International System (UL/IEC/CSA): Uses acronyms describing the exact construction or UL styles:

Fluoropolymers: PTFE, FEP, PFA (Often classified under UL 1180, UL 1332).

Silicone Rubber: SRML, SF-2, SFF-2.

Extreme Heat: TGGT (Teflon Glass Glass Teflon), MGT (Mica Glass Tape).

Global Interchangeability: Despite differing names, these cables can be used interchangeably in global projects. Performance is dictated by thermal endurance, dielectric strength, and conductor plating. As long as the physical materials (e.g., Silver-plated copper with PTFE) and the temperature/voltage ratings match the project’s engineering specifications, the cables meet the universal physical laws of thermal degradation.