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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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  • 0
    mapj1:

    I must say I find 6 inches over a metre quite surprising, although even so  is not a huge reduction in useful cross-section,  but the problem would be damaged or low quality cables.


    It's less than the 3 cm that I added to 10 cm.


    At risk of stating the obvious, if the length increases by 30%, the CSA must decrease by the same amount.


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  • 0
    mapj1:

    I must say I find 6 inches over a metre quite surprising, although even so  is not a huge reduction in useful cross-section,  but the problem would be damaged or low quality cables.


    It's less than the 3 cm that I added to 10 cm.


    At risk of stating the obvious, if the length increases by 30%, the CSA must decrease by the same amount.


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