If you have a new account but are having problems posting or verifying your account, please email us on hello@boards.ie for help. Thanks :)

Hello all! Please ensure that you are posting a new thread or question in the appropriate forum. The Feedback forum is overwhelmed with questions that are having to be moved elsewhere. If you need help to verify your account contact hello@boards.ie

Hi there,
There is an issue with role permissions that is being worked on at the moment.
If you are having trouble with access or permissions on regional forums please post here to get access: https://www.boards.ie/discussion/2058365403/you-do-not-have-permission-for-that#latest

12V power supply gone with a bang.

Wearb · 2020-09-02 14:05:25

Heard a bang from above. It was plugged into a 4 gang trailing socket strip, protected by a 13A fuse. It tripped a 20A MCB and didn't blow the fuse. Is that normal, or should I replace the fuse anyway?

02-09-2020 2:05pm

#1

Wearb

Moderators, Home & Garden Moderators Posts: 6,378 Mod ✭✭✭✭

Join Date: November 2010

Posts: 6030

Heard a bang from above. It was plugged into a 4 gang trailing socket strip, protected by a 13A fuse. It tripped a 20A MCB and didn't blow the fuse. Is that normal, or should I replace the fuse anyway?

Please follow site and charter rules. "Resistance is futile"

0

Comments

#2 02-09-2020 7:22pm

Bruthal

Closed Accounts Posts: 13,422 ✭✭✭✭

Join Date: October 2008

Posts: 13395

Not unusual to trip an MCB and not blow the fuse. MCBs are often faster.

Fuse may have been closer to failing than it would be if not exposed to the short duration overload, so could be a little weaker. I would leave it as is myself though, if still working.

0