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EV Ultra Cable ( SWA 3 core with Cat 5). Termination ?

JHFE

Looking at EV Ultra SWA 3 core cable with Cat 5 data and is raising a few questions.

It is aimed at EV charging installations, however…..

At some point that cable has to enter an enclosure and be terminated.  This could be directly into an EV charger, designed to take the cable, but it could also potentially be terminating at the power source end, into an enclosure with power terminations for the 3 cores ( line conductors and CPC ), e.g. a consumer unit.  

It just seems a bit iffy to have a data cable ( by now unsheathed and stripped back )  entering a consumer unit.  A data cable that has a conductive shield.

Is anyone aware of any regs that specifically allow or prevent this situation?  or is the case of  “allow” is that covered by section 134 and regs such as 134.1.1 “Good workmanship….proper materials……manufacturers' instructions.”  e.g. power elements and SWA terminated to CU with a gland, data cable suitably sheathed ( sleeved ) as it makes it's way back out of the CU to an appropriate ethernet connection?

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    To terminate such a cable into an EV charger or other appliance, I would follow the manufacturers directions, and consider this to be outwith the IET wiring regulations and to be covered by the appliance approvals.

     

    For connection to a consumer unit I would not take the cable directly into a consumer unit or similar equipment.

    I would terminate the cable into an adaptable box or similar mounted immediately adjacent to the consumer unit. Connect a short piece of green/yellow to the armouring, via an earth tag. Take the three cores and the extra earth into the consumer unit and connect like any other circuit.

    The ELV data cores should leave the adaptable box via a separate gland, spaced away from the insulated but no longer sheathed live cores.

    I would consider it good practice to apply extra protection such as insulated sleeving to the data wires whilst in the same enclosure as the mains voltage wires. 

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  • 0

    To terminate such a cable into an EV charger or other appliance, I would follow the manufacturers directions, and consider this to be outwith the IET wiring regulations and to be covered by the appliance approvals.

     

    For connection to a consumer unit I would not take the cable directly into a consumer unit or similar equipment.

    I would terminate the cable into an adaptable box or similar mounted immediately adjacent to the consumer unit. Connect a short piece of green/yellow to the armouring, via an earth tag. Take the three cores and the extra earth into the consumer unit and connect like any other circuit.

    The ELV data cores should leave the adaptable box via a separate gland, spaced away from the insulated but no longer sheathed live cores.

    I would consider it good practice to apply extra protection such as insulated sleeving to the data wires whilst in the same enclosure as the mains voltage wires. 

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