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Re terminating ancient cables

Martyn
Hi Folks, 


So I may have a job in the offing where I will need to temporally re terminate these 3 cables, the one on the right is only 1m long so I’ll just replace it. 


The other two are rising mains from the 1940’s each feeding 20 flats, I believe them to be armoured PILC’s though happy to be corrected, the lead is being used as the earth. 


Has anyone re terminated similar and are there any pitfalls that may scupper me? 


The re termination will only be temporary whilst the new building network is being installed.89f8b92115c4d5d4e672a2d7771fc855-huge-a8ae4b2d-f17a-4e4e-a594-4469fa0801a0.jpg



Cheers 


Martyn
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    I would not disturb the old cables in any way, far too much risk of failure.

    Leave the existing cables and the metalwork into which they are connected alone. Use the existing switchfuse, or whatever as a joint box. The existing cable cores are presumably terminated onto some form of terminal in the item illustrated.

    Don't disturb these cable ends or the terminals into which they are connected, but connect new conductors thereto, perhaps by soldering.


    The earth continuity looks a bit dodgy, an upfront time delayed 300ma RCD might be prudent.


    If re terminating the old cables is completely unavoidable, then consider subcontracting this work to the DNO or to whatever subcontractor that the DNO use. They are experienced in this old stuff.
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  • 0
    I would not disturb the old cables in any way, far too much risk of failure.

    Leave the existing cables and the metalwork into which they are connected alone. Use the existing switchfuse, or whatever as a joint box. The existing cable cores are presumably terminated onto some form of terminal in the item illustrated.

    Don't disturb these cable ends or the terminals into which they are connected, but connect new conductors thereto, perhaps by soldering.


    The earth continuity looks a bit dodgy, an upfront time delayed 300ma RCD might be prudent.


    If re terminating the old cables is completely unavoidable, then consider subcontracting this work to the DNO or to whatever subcontractor that the DNO use. They are experienced in this old stuff.
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