16mm tails with 100A fuse ??? | Page 3 | on ElectriciansForums

Discuss 16mm tails with 100A fuse ??? in the UK Electrical Forum area at ElectriciansForums.net

Wilko

-
Arms
V.Nearly Esteemed
Joined
Jul 28, 2016
Messages
6,245
Reaction score
7,157
Location
Berkshire
Job today to change out old fusebox and I'd noted the 16mm tails but on pulling the fuse this morning it was 100A which I wasn't expecting. Fairly recent new smart meter installed by XYZ who are also the DNO ... Shouldn't the fuse be limited to 60A in this case? Thoughts and advice appreciated :)
 
I guess you must C2 every domestic installation that has 16mm tails and a 100 amp fuse arrangement without consideration other than 'it's not the right size'
This wasn't the argument, the argument was the rating of said cable and my proposition that being partially contained should reduce the ccc. You have yet to give a flaw to this argument.
 
This wasn't the argument, the argument was the rating of said cable and my proposition that being partially contained should reduce the ccc. You have yet to give a flaw to this argument.
You've yet to confirm yours.
Show me evidence that cables need derating and to what method?
Then I'll come around.
Don't recall bs 7671 requiring us to derate cables entering a consumer unit or an enclosure in the appendicies with the list of reference methods it gives.
 
Last edited:
As has already been stated if there was a requirement to de-rate a cable entering an enclosure for termination clipped direct and free air installation methods would not be possible and would not be in the BYB.
Clipped direct would apply between service heads and meters etc. Once contained at its termination to a CU alternative ccc applies. Really quite simple.
 
just for the craic, tne or other cables are usually stripped back to single insulated conductors inside an enclosure (so may closer reflect singles in trunking for that part), meter tails are usually sheathed right to the termination point. would this (how much?) affect the argument?
i've had a couple, there's no BYB in sight, i just wanted to get involved.. !
 
Just ordered a couple of 60A fatboy fuses. Not saying where one might go :rolleyes:

Edit : ok, just stop right there, you lot are just hopeless
The seal fairies will appreciate your sacrifice and offerings of new fuses and continue to keep you safe in your work!:smirk::blush:
 
Then there's no point in clipped direct is there? , as the worst case de rating factor must be used for the cable /circuit therefore clipped direct could not be used as a cables ultimate reference method
Jesus!
Got to be a wind up this?

I doubt very much that he'll have much to say about this Ian. :)
 

Reply to 16mm tails with 100A fuse ??? in the UK Electrical Forum area at ElectriciansForums.net

News and Offers from Sponsors

  • Article
Join us at electronica 2024 in Munich! Since 1964, electronica has been the premier event for technology enthusiasts and industry professionals...
    • Like
Replies
0
Views
301
  • Sticky
  • Article
Good to know thanks, one can never have enough places to source parts from!
Replies
4
Views
814
  • Article
OFFICIAL SPONSORS These Official Forum Sponsors May Provide Discounts to Regular Forum Members - If you would like to sponsor us then...
Replies
0
Views
873

Similar threads

This was posted this week, on topic ....... https://niceic.com/newsletter/omission-of-overload-protection/?dm_i=7G1W,7GCE,K4L2A,WHET,1
Replies
8
Views
705
Your biggest mistake is admitting to a mistake.... If theres no witnesses, it didn't happen. However.... A few golden rules.... Never trust...
Replies
6
Views
67

OFFICIAL SPONSORS

Electrical Goods - Electrical Tools - Brand Names Electrician Courses Green Electrical Goods PCB Way Electrical Goods - Electrical Tools - Brand Names Pushfit Wire Connectors Electric Underfloor Heating Electrician Courses
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

This website was designed, optimised and is hosted by untold.media Operating under the name Untold Media since 2001.
Back
Top