Short answer: cable joint kit models should be matched by voltage class, cable core count, conductor size range, insulation diameter, screen type, armor type and installation environment.
| Voltage class | Use 1kV kits for low-voltage power cable, 10kV to 35kV kits for medium-voltage distribution cable, and 110kV to 220kV kits for high-voltage cable systems. |
|---|---|
| Core count | One-core kits and three-core kits are not interchangeable. Confirm cable construction before quotation. |
| Conductor size | Match the kit range to conductor section, such as 1×150-240, 3×70-120 or 3×300-400. |
| Installation | Confirm indoor, outdoor, direct buried, cable trench, switchgear room or overhead transition environment. |
Wrong selection usually happens when the buyer sends only cable size but not insulation diameter, screen type or installation environment. These details can change the kit model.