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Has anybody used these matt-e products for EV charging points?

Former Community Member
Former Community Member

Is this brand any good ? 

The supply source is a three phase T-N-C-S system. The load on the three phase distribution board is never going to be fully balanced so the options are to either to install earthing rods (electrode) or use one of these devices to avoid hammering rods to be compliant.

Just wondered if anyone had any experience with the brand.

Any other ideas also welcomed.

Regards,

J

 

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    So, the OP has stated that 722.411.4.1 (i) balanced three-phase supply doesn't apply … and is considering the use of one of the devices in 722.411.4.1(iii) to (v) … noting that it may also be difficult to achieve 722.411.4.1(ii) additional earth electrode (the IET CoP for EV Charging Equipment Installation states this is also rarely practicable (see Appendix G).

    Being a three-phase installation, the OP is looking at a device to 722.411.4.1(iii) … according to the manufacturer's web-site, this particular product doesn't require a measurement earth electrode, as per A722.4 item (b),  and is asking whether anyone has experience of this product?

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    So, the OP has stated that 722.411.4.1 (i) balanced three-phase supply doesn't apply … and is considering the use of one of the devices in 722.411.4.1(iii) to (v) … noting that it may also be difficult to achieve 722.411.4.1(ii) additional earth electrode (the IET CoP for EV Charging Equipment Installation states this is also rarely practicable (see Appendix G).

    Being a three-phase installation, the OP is looking at a device to 722.411.4.1(iii) … according to the manufacturer's web-site, this particular product doesn't require a measurement earth electrode, as per A722.4 item (b),  and is asking whether anyone has experience of this product?

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