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Hello can anyone advise what they would do in this situation please. I have a wylex 100amp switch fuse that has an incoming and out going cpc connection which takes up to a 16 mm cpc. I have 16mm incoming and outgoing cpc, however how do I then earth the enclosure and the banjo as the cpc connection has no connection with the enclosure
 
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Hello can anyone advise what they would do in this situation please. I have a wylex 100amp switch fuse that has an incoming and out going cpc connection which takes up to a 16 mm cpc. I have 16mm incoming and outgoing cpc, however how do I then earth the enclosure and the banjo as the cpc connection has no connection with the enclosure
 

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pc1966

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Tails in swa out
Could you just take the 16mm CPC to a crimp lug bolted to the SWA's banjo and, assuming 3C SWA, also put a lug on the cable's SWA conductor to the same bolt?

i.e. Ignore the switch's through-CPC connection and the box's terminal strip completely.

EDIT: Also you could use a nylock nut if concerned about it coming loose.
 
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Could you just take the 16mm CPC to a crimp lug bolted to the SWA's banjo and, assuming 3C SWA, also put a lug on the cable's SWA conductor to the same bolt?

i.e. Ignore the switch's through-CPC connection and the box's terminal strip completely.

EDIT: Also you could use a nylock nut if concerned about it coming loose.
Yes I think that is the only option, it’s a lot of extra faff and the switches are not cheap
 

pc1966

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Yes I think that is the only option, it’s a lot of extra faff and the switches are not cheap
Could you knock the existing small terminal block off the box and fix something like this in its place with a pair of machine screws:


You might need to have nuts on top and use countersunk heads coming through from the back to is fixes flush though.
 
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Could you knock the existing small terminal block off the box and fix something like this in its place with a pair of machine screws:


You might need to have nuts on top and use countersunk heads coming through from the back to is fixes flush though.
That’s a good option it’s a shame I have fifteen to do of these
 
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Could it be fixed physically with one of the box fixing screws, then a 6mm jumper to the box's terminals? Or maybe better just a 10mm jumper to lug on piranha / Earthing nut as quicker than banjo, etc?
I will get over with unnecessary work as the switch fuse by wylex is very poorly designed
Could it be fixed physically with one of the box fixing screws, then a 6mm jumper to the box's terminals? Or maybe better just a 10mm jumper to lug on piranha / Earthing nut as quicker than banjo, etc?
i still think there are a lot of these installed where the installer thinks the cpc connection is common to the enclosure
 

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It really is a terrible design putting in such a small separate terminal however Wylex may have calculated the worst scenario for fault protection and that a 6.0 would satisfy. I would email them.
 

SparkySy

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They are rubbish considering the price of them, as usual the designer has never had to fit one or they would have noticed the massive cock up with the earth terminal!
The last one of those I fitted I ran the SWA cpc to the earth banjo bolt and lugged the 16mm outgoing on that as well. As stated above an earth nut would probably be quicker!
Sy
 

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