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Fair enough, common sense. I understand that "the possibility of damage" pertains to sensitive equipment such as computers, radio gear, radar, sounders etc that may well be permanently connected. In the case of a standard 24V DC workboat, I would expect older equipment to be rated max 32V (from...

new requirements for fishing vessels. I am slightly perplexed, it seems that 4.8.2.3 indicates that we may be able to use eg a 48V test for a nominally 24VDC distribution arrangement as found on most fishing boats. or a 24V test for a nominally 12V vessel. But this would be in contradiction of...

Why would this box have been configured in this fashion? It is the distribution point for lights & and a couple of sockets in a modern steelframe GP farm shed. it is supplied via a DP isolator & SWA submain from the main dwelling house. Not too sure about main supply arrangement but almost...

of course yes, didnt think it through. obvious. thanks.

I was trying to work out what precisely had gone wrong here. the problem was caused by fresh water running down a conduit and into the box. seems surprising that the RCBOs did not prevent the whole thing from cooking up in the fashion that it clearly has.

The local professional has apparently been at it all day: "But her sparky was at it all day and couldn’t sort, talked about getting a 3rd replacement trip switch that was older and therefore “less sensitive” but left her with power on to living room sockets somehow with an extension reel to...

Why should the ELCB-v have been removed with the fitting of the EV charging point?

True, I think the general feeling was that my brother's action of "testing" the ELCB had somehow triggered a fault elsewhere. Anyway, the EDF bod has been, replaced the meter and has diagnosed the problem within the ELCB. which sort of fits the circumstances better disappointing result for the...

I have now done so. I feel so foolish.

"voltage operated" interesting. I have yet to meet anything mechanical that is "voltage operated"

that Ottermill Type D ELCB (not a RCD) is fairly simple I believe, but (being an ELCB) it only works on actual earth current flowing in one particular earth path. I imagine that they were used on an installation that comprised a possibly bad local earth spike. Ive known the district in question...

I wondered similar. It is "smart", so I guess that it could display verbose messages etc describing how it feels about what it's connected to. I further wondered whether a volt-stick neon proximity gadget could have been used for his diagnosis which may have led to mis-diagnosis.

if a smart meter like the one pictured contains the facility to disconnect power, how is this achieved? the unit in the picture does not appear big enough to comfortably house a contactor of say 100A capability

Report from the electrician was, power is getting to the smart meter but not beyond it. Not sure how he could have diagnosed this definitively without disrupting DNO equipment, but that's apparently wot 'e said I think my brother would probably have noticed the main fuse rupturing. I must admit...

an elderly female neighbour was concerned that her EV charger (installed outside) no longer had a flashing blue light on it so asked my brother (who happened to be visiting at the adjacent property) to "have a look". also she had said that her smart meter usage monitoring panel had been...

Anyone know where I could replace this little doofer or what it might be called? Im getting fed up with poking the earth hole to plug it in. cheers

I wonder what is wrong with the status quo? are we demonstrably less electrically safe in Scotland? I am not an electrician in the Ban-All-Sheds sense of the word, though many of my customers see me as such and I am probably more competent than some card-carrying "Electricians" Personally I feel...

anybody got any experience with waste oil heater control boxes? namely in this case, Honeywell TF834.3 (rebranded as satronic among others) My question is regarding the oil preheater, and how it is supposed to be controlled. The datasheet of this module shows timing diagrams on p.3 Terminal 6 of...

Still trying to get to the bottom of what this 2-rate tarriff with bulb is. this is the "tarriff details" from Bulb energy. This is literally all I can find, but I think there ought to be some clause in the contract detailing how much night-rate is available in a 24 hour period... shouldnt there ?

ah yes. I guess all I really need to know is that we are getting our contracted allocation of lowrate. I am not sure why I thought I needed to know when it was coming on!