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Terminating Twin and Earth

nicemark
I have been arguing about the methods of separating out the ends of twin and earth cable.


An old accepted trade method was to simply grip the earth wire and tear it out of the insulation to split the ends open.

However this puts considerable strain on the earth wire and in the case of 1mm wire it is very easy to stretch a significant amount. 


I was wondering if you there is data or evidence to demonstrate that this method is not acceptable. 

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    Hi Mike

    Thanks for that reply. Though I have not used scales, your figures seem much more like real life than others I have been quoted. Furthermore the 28KG to snap it (gently applied) seems true. I have used much less force than that to considerably stretch 1mm wire. 

    So this confirms my theory, so now I am puzzled as to why stressing the CPC has not been made an issue before, particularly on the small CPC sizes.

    Nice pliers too.
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  • 0
    Hi Mike

    Thanks for that reply. Though I have not used scales, your figures seem much more like real life than others I have been quoted. Furthermore the 28KG to snap it (gently applied) seems true. I have used much less force than that to considerably stretch 1mm wire. 

    So this confirms my theory, so now I am puzzled as to why stressing the CPC has not been made an issue before, particularly on the small CPC sizes.

    Nice pliers too.
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