Latest activity
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JThey are normally the sort with one device L-N (typically Metal Oxide Varistor) and another device from N to E (typically Gas Discharge...
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JIn a TT system, as far as I understand it, SPDs should connect (via the MOVs etc.) phase to neutral and neutral to ground. I would...
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JIt reduces the L-N-CPC differences for appliances within the installation so they have much less chance of damage. I think LPS are...
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JJim_e_Jib reacted to davesparks's post in the thread TT System with Upgraded DB/CU with
Informative.
Shouldn't be a problem using an SPD which is designed for a TT system, these will as you have said have protection L-N and N-E so that a... -
JJim_e_Jib reacted to davesparks's post in the thread TT System with Upgraded DB/CU with Informative.
SPD's should not be downstream of an RCD, the RCD will trip when the SPD starts to dump the surge to earth and the surge protection...
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JTricky one. The issue with a RCBO feeding it is both the risk it trips on a surge and nobody notices, and also that the sense coil of...
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JAs someone who has some knowledge of the rental market (in Scotland) the whole system is flawed. On this one point alone, EPC rating, we...
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JBored? No! Rubbish? No! Informative? Yes!
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JI've read that post 3 times @Julie... It's over my head (no pun intended!) but I'm now fascinated by something I knew absolutely nothing...
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JOK so I have pieced a document together showing the basis of the calculation - attached here.
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JSo I could bore you all to death with this one! After my first degree, the second project I did was a problem of dielectric breakdown...
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JWhat about July 27th 1993 then eh??
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JJim_e_Jib reacted to Lucien Nunes's post in the thread Dangerous DNO Head - Lucy Oxford with Informative.
Yes that's a common scenario. The heart of the matter is that the DNO don't want the item, it's automatically defined as waste not...
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JJim_e_Jib reacted to JosephandAmber's post in the thread Dangerous DNO Head - Lucy Oxford with Like.
I've asked the client to relay this to UKPN if they get there before me. Will let yo know the outcome
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J@JosephandAmber if you can get them to leave it behind, I'll pay you to send it to me for the museum. I'm really struggling to get hold...
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