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CT Clamp connections inside consumer units

Alan B

I am looking at how best to terminate EV ultra cable for a EV charger at the consumer unit end.

The data cable for EV ultra has insulation rated at the same voltage as the power cables and therefore can be run inside the consumer unit. If there is space it would be quite tidy to actually mount the CT clamp inside the consumer unit as well. 

I have seen some on you tube do this with some heat shrink to give extra protection and wagos to make connection between the EV ultra and the CT clamp cable. I would probably go for a crimp connector as myenergie at least seem to feel spring connectors are unreliable for data.

 

Just wondering if others view this as an acceptable/good solution

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    It is probably permitted in the CU, but unless the only circuit in the CU relates to this load, I'd be tempted to keep the CT in an adaptable box along side if you can, as then it will only be disturbed by folk who know what it is and not to mess with it.  It is remarkable how badly some folk manage in a CU when there is a relay or doorbell supply alongside the MCBs, and this is rather more delicate than that.

    The risk is of changes to an unrelated circuit leading to it being pushed about, at worst compromising your careful LV segregation, or less seriously introducing an EMC issue.

    Mike.

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  • 0

    It is probably permitted in the CU, but unless the only circuit in the CU relates to this load, I'd be tempted to keep the CT in an adaptable box along side if you can, as then it will only be disturbed by folk who know what it is and not to mess with it.  It is remarkable how badly some folk manage in a CU when there is a relay or doorbell supply alongside the MCBs, and this is rather more delicate than that.

    The risk is of changes to an unrelated circuit leading to it being pushed about, at worst compromising your careful LV segregation, or less seriously introducing an EMC issue.

    Mike.

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