Our Voltimum Experts answer your questions on a daily basis in our Technical Expertise area. This Question of the Day, concerning joining two lengths of 185mm cable together, is answered by BASEC:
Answer: Firstly, the choice of jointing method should be discussed with client.
A number of different types of joint might be usable, depending upon the circumstances. This is usually the decision of the installer. Possible reasons why the torpdo joint might be less desirable include:
1. For low smoke halogen-free sheathed cables, an appropriate jointing kit should be used to maintain performance.
2. You only get one go at doing the epoxy joint. A taped/sleeved joint would be more forgiving.
3. The voltage, temperature and other electrical performance factors involved may dictate against it.
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