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J
Jim_e_Jib
reacted to
pc1966's post
in the thread
TT System with Upgraded DB/CU
with
Informative
.
They are normally the sort with one device L-N (typically Metal Oxide Varistor) and another device from N to E (typically Gas Discharge...
33 minutes ago
J
Jim_e_Jib
reacted to
RichardM's post
in the thread
TT System with Upgraded DB/CU
with
Informative
.
In 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...
34 minutes ago
J
Jim_e_Jib
reacted to
pc1966's post
in the thread
TT System with Upgraded DB/CU
with
Informative
.
It reduces the L-N-CPC differences for appliances within the installation so they have much less chance of damage. I think LPS are...
34 minutes ago
J
Jim_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...
35 minutes ago
J
Jim_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...
35 minutes ago
J
Jim_e_Jib
reacted to
pc1966's post
in the thread
TT System with Upgraded DB/CU
with
Like
.
Tricky 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...
35 minutes ago
J
Jim_e_Jib
reacted to
pirate's post
in the thread
Best way to improve EPC rating
with
Like
.
As someone who has some knowledge of the rental market (in Scotland) the whole system is flawed. On this one point alone, EPC rating, we...
36 minutes ago
J
Jim_e_Jib
reacted to
pirate's post
in the thread
HV/EHV Safety distances
with
Like
.
Bored? No! Rubbish? No! Informative? Yes!
37 minutes ago
J
Jim_e_Jib
reacted to
pirate's post
in the thread
HV/EHV Safety distances
with
Like
.
I'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...
37 minutes ago
J
Jim_e_Jib
reacted to
Julie.'s post
in the thread
HV/EHV Safety distances
with
Informative
.
OK so I have pieced a document together showing the basis of the calculation - attached here.
37 minutes ago
J
Jim_e_Jib
reacted to
Julie.'s post
in the thread
HV/EHV Safety distances
with
Informative
.
So 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...
38 minutes ago
J
Jim_e_Jib
reacted to
Moley's post
in the thread
HV/EHV Safety distances
with
Funny
.
What about July 27th 1993 then eh??
40 minutes ago
J
Jim_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...
Today at 7:12 AM
J
Jim_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
Today at 7:11 AM
J
Jim_e_Jib
reacted to
Lucien Nunes's post
in the thread
Dangerous DNO Head - Lucy Oxford
with
Like
.
@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...
Today at 7:11 AM
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