European harmonized wire and cable products, such as H07V-K hook up wire and H07RN-F portable cord, are named according to a part number coding system. Each digit in the part number represents a characteristic of the cable. Here's the part number breakdown.
1. Basic Type
- H - Harmonized Type
- A - National Type
2. Working Voltage
- 03 - 300/300 Volt
- 05 - 300/500 Volt
- 07 - 450/750 Volt
3. Insulating
- V - PVC
- R - Rubber
- S - Silicone Rubber
4. Sheath-Cladding Material
- V - PVC
- R - Rubber
- N - Chloroprene Rubber
- J - Glass-filament Braiding
- T - Textile Braiding
5. Special Features
- H - Ribbon Cable, Separable
- H2 - Ribbon Cable, Non-Separable
6. Conductor Types
- U - Single Wire
- R - Multi-Wire
- K - Fine Wire (Permanently Installed)
- F - Fine Wire (Flexible)
- H - Super Fine Wire
- Y - Tinsel Strand
7. Number of Conductors
8. Protective Conductors
- X - Without Protective Conductor
- G - With Protective Conductor
9. Conductor Cross-Sectional
- Area specified in mm2