Short answer: cable terminations should be selected by voltage class, indoor or outdoor location, cable core count, conductor size, insulation diameter, pollution level and required standard.
| Indoor termination | Used inside switchgear, transformer rooms and cable compartments where UV and rain exposure are not direct. |
|---|---|
| Outdoor termination | Used on poles, outdoor substations and open yards. Confirm creepage distance, UV resistance and pollution level. |
| Cold shrink | Good for fast installation and consistent radial pressure. Confirm storage and installation temperature. |
| Heat shrink | Common for cost-sensitive projects. Confirm installer skill and flame or hot-air tool availability. |
Do not replace an outdoor termination with an indoor termination only because the cable size matches. Environmental rating and creepage distance must also match.