1. Main Inspection Scope

   - PVC insulated cables and wires rated at 450/750V and below
   - Thermoplastic insulated cables rated at 450/750V and below
   - Rubber insulated cables and wires rated at 450/750V and below
   - PVC insulated cables for power, lighting, and internal wiring rated at 450/750V and below, polymer insulated cables, flexible cables rated at 300/500V and below for household, office, and similar environments
   - UL electronic wire

2. Main Inspection Items

   Structural dimensions, electrical insulation performance, physical mechanical properties, etc. of wire and cable products.

3. Main Inspection Standards

   GB/T 5023, JB/T 8734, JB/T 8735, GB/T 5013, GB/T 8815, JB/T 8139, GB/T 3952, GB/T 3953, GB/T 3954, GB/T 3955, GB/T 3956, IEC 60227, IEC 60245, HD 21, HD 22, UL 758, UL 62