Just looking at MEIWC (had not done so for quite a while). It asks for Zdb. When doing minor works on a larger installation a measured Zdb may be acceptable as turning off the whole installation is not possible/acceptable. However with a small installation with only one CU/DB is this really asking for Ze or is a measurement with bonding in place acceptable?
- Thread starter sxdave
- Start date
- Replies 3
- Views 1K
Discuss MEIWC Zdb is this Ze for the first/main DB/CU? in the Periodic Inspection Reporting & Certification area at ElectriciansForums.net
Yes if it asks for Zdb as opposed to Ze.
L
loz2754
Yes, because if it asked for Ze, then the whole installation would need to be switched off and the earthing conductor disconnected to obtain the measurement.
For minor works, this is usually not necessary, therefore Zdb is the correct and only term that can be used in this situation.
For minor works, this is usually not necessary, therefore Zdb is the correct and only term that can be used in this situation.
Reply to MEIWC Zdb is this Ze for the first/main DB/CU? in the Periodic Inspection Reporting & Certification area at ElectriciansForums.net
Similar threads
- Question
much more information required.
Is the supply to the first building a DNO supply or a sub main cable from another building ?
if it is a sub main...
- Ben Murray
- UK Electrical Forum
- 5
- 927
Thought I'd update this. Finally had my assessment today. I chased them on Friday morning as it'd been about 10-12 weeks since I'd actually made a...
- Yellowhammer
- Certification NICEIC, NAPIT, Stroma, BECSA Forum
- 5
- 2K
Recommended Sponsor News
- Article
thanks for the clarification. ( also thanks to Dan. ).
- Uheat – Jake
- Forum Sponsor News and Offers
- 6
- 2K
- Article
Thanks Ivan that's very kind of you. :)
- Article
More info on link below
http://sbsc.uk.net/
- Article
Happy Friday Everyone!
Subscribe for more jokes direct to your mailbox or send us your own jokes to be in with a chance of featuring, by clicking...
OFFICIAL SPONSORS
These Official Forum Sponsors May Provide Discounts to Regular Forum Members - If you would like to sponsor us then CLICK HERE and post a thread with who you are, and we'll send you some stats etc
YOUR Unread Posts
-
Outlet Power MysteryWe have a washer and tumble dryer - each plugged into their own socket (UK standard). Both have...
- Latest: zapmenot
-
What is this called and where can I get it?Thanks for that link. I ended up buying this becasue I could buy it by the metre Pardon our...
- Latest: Flam98
-
Does This Installation Look Correct?I suspect the two lighting circuits have crossed neutrals through the landing light not uncommon...- Latest: westward10
This website was designed, optimised and is hosted by untold.media Operating under the name Untold Media since 2001.