Recent content by Staffex

Given all the press hysteria it was refreshing to find this balanced Sunday Times article: Are electric cars more likely to catch fire than petrol and diesel cars? (driving.co.uk)

My MG5 halts the V2L discharge if it detects an earth (PE) leakage of just over 1mA, which is 30 times more sensitive a typical RCD. See post #87 here: V2L Earthing - how?

En route to nr Tintagel 240 miles away I started with 100% charge and stopped in Illminster, Stonemasons pub car park just off the A303, 142 miles from London home: Osprey 2 CCS & 1 Type 2; Electroverse card worked fine with MG5 Trophy LR Stonemasons · Harts Cl, Ilminster TA19 9DJ

Thanks Tim. You whetted my appetite and I found that Podpoint go into some detail here: Why Pod Point homechargers do not require an earth rod | Pod Point It seems they've covered all bases. A relay isolates the earth feed to the car in the event of a significant potential developing between...

Tim, I think an earth rod should be included if a transformer is used. Here's my reasoning... At around 33' into John's video he shows that, in the event of a break in the supplier's neutral, the indoor neutral - and indoor earth conductor which is strapped to it on a TN-C-S supply - could...

That post concerned supplying a house from the car via a V2L lead. John Ward is exploring a safe way to operate an outdoor domestic EV charger from a premises with a TN-S or TN-C-S supply. He concludes that a very large earth mat is required but I suggested that a cheaper alternative might to...

I'd read somewhere else on this forum that the car monitors the 12v battery and uses the traction battery to periodically dump some charge into it when necessary, though I'd not previously seen this happen on my 2023 MG5. When my car was parked for a fortnight I used the app daily and observed...

Wow, quite depressing isn't it? John's impeccable logic leads him to conclude that on non-TT supplies (the majority of those in the UK) outdoor charging points should only be installed in conjunction with a 10-20 square metre earth mat! Or perhaps a cheaper alternative would be a 7kW...

I never leave any unused cable coiled on the drum for fear of a meltdown. Yes, but I was merely illustrating the sort of cable loss that Gazza might encounter.

See post #18 Home charging hot plug When on holiday in Cornwall I run a 50m 1.5mm2 extension lead from the guest house's bedroom window down to my granny charger placed on a brick beneath the car to keep it dry. I haven't encountered any problems.

This thread may be of interest: V2L Earthing - how?

See post #87. It also explains why a simple socket tester raises an earth fault warning when plugged into the V2L lead.

It leaves the car's chassis 83V above earth! So MG's V2L implementation doesn't comply with the IET regulations for portable generators. The only mitigating factor is that an earth leakage of just 1.2mA is sufficient to halt the discharge.

IET On-Site Guide: 2.4.3 “Where there are extraneous conductive parts…from other electrical systems present, generator reference earthing, by means of an earth electrode…should be installed…the system will be TN-S in form from the generator…”

The official line is that bi-directional RCBOs etc. have a different arc quenching arrangement. Really? Perhaps someone on this forum with a background in plasma physics could give us an explanation. Or maybe it's just a marketing ploy - a bit like those special 'digital' tv aerials that...