Recent content by ebee

Indeed yes, but it reveals itself only as "an earth" so you bond. Now them I know some do not even test at all and then some test with the bonds still connected. Wait for that bolted fault to occour and now you are reliant on a house or two 5 doors down having a 1.5mm cpc for the...

Just one thought here too. You disconnect all bonds yest you might measure the apparent earth connection of someting of your own (which should be disconnected anyway) so any pipework you measure can only be comming from extraneous, however the question is yes it could be next doors bonding but...

Mind you, I have been known to discover noincommer E connection on PILC where others have actually tested but not gone to the trouble of disconnecting gas and water bonds on the installtion, they were soconvinced the readings they got did not warrant fully disconnecting bonds but my reports...

Yes, sometimes it is "sleeved loosely by a plastic or metallic outer liner and on closer inspection you can envisage it not actually making a good connrction to the outer , a metered test sometimes reveals a quite high resistance value where you might have expected a low value. clearly not...

Well I would rather there is an RCD 30mA or less non-delayed than there isn`t but I still follow the same procedures as back in the days of almost no at all. It gives you another chance than you might need but they can fail they do fail and are not guranteed to save yer live in every instance...

except the cut out and meter ;)

It can sometimes be viewed as much with a quick glance by the untrained eye until a slightly more critical observation is made. Things are not always as obvious as first seen.

I think it was thought to be a possible one of the contributing factors because another factor or three was present such as E to N ins res or reactance or a capacative/inductive affect or something at the same time. As said the change of DP switch completely curred the problem which might have...

Well if it was like that when they were on site they probably should fix it and its probably fair for them to chrge you a small fee but if they were not present when you asked it might mean a visit to verify and correct sothat fee might be more. Fair`s fair.

OK I will accept the word of your eletrician that it should be bonded (is an extraneous-conductive-part) because they should know. Not all pipework is needed to be bonded unless less it is. That might sound strange to some. If bonding is needed it is safer to have it, if it is not needed it is...

Good, how do you know that? Have you verified it?

Is your gas main an extraneous conductive part?

Some of you might recall, a long time ago, I came to a "conclusion" that a particular DP switch (for an immersion heater) might have one side leading/lagging being perhaps one contributing cause of an RCD trip. The problem only occored at switch off if I remember correctly. I am guessing now but...

I think it might be to suit a majority type of thing. If you manufacture for all of Europe and beyond then you are unlikely to cater specifically for the UK and a few more , it makes manufacturing sense to cater for the majority only in such situations whether or not common sense is common or...

Is that up near the ceiling? There is guidance on recommend heights for consumer units. In the past there were some very silly ideas of where to mount a consumer unit. Sometimes the most ridiculous of places and out of sight out of mind seemed to be the order of the day to many folks. I suppose...