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- 27 Jan 2008
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As I understand it chargers like the HappiZappi can charge at 95 amp, this means any connection would need to be before any MCB and likely before the RCD as it is only 80A as to if you can get the current transformer around the incoming cables, or if you can actually tap into the incoming supply I don't know, we don't even know size of supply fuse, or size of tails.It matters.
Type A or B RCDs cannot be connected downstream of a type AC.
As a commercial electrician I know there are rules when in control of an ordinary person, but not quite what those rules are, I know it refers to using type tested equipment, but as to what can be done inside a consumer unit and keep its type testing I am not so sure, and not sure about this one point of isolation, I know I have an independent isolator in my house, but not sure if it complies with the rules, well it will for me as I am not an ordinary person, but the casing is plastic I am sure, even if the consumer unit is metal, but it in essence comes down to the installer, what he feels are the rules, and what he is prepared to do, and we can debate it all we want, but at the end of the day, it is down to the guy installing it all. If he reads the regulations as saying he needs an earth rod, and independent RCD type F then that has to be fitted.
In spite of working with inverters and electric vehicles if I wanted an electric car I could not fit my own charging point, without costing me more in courses and exams than it would cost me to hire an electrician who already had the qualifications. @Risteard says it is not a DIY job, even for those with the knowledge required.