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

What's black box called?

bothyhead · 2019-01-17 14:55:18

I'm curious as to what this electrical device is called and what its purpose is. I've noticed a lot of them recently, usually situated under pole transformers.

17-01-2019 2:55pm

#1

bothyhead

Registered Users, Registered Users 2 Posts: 442 ✭✭

Join Date: July 2008

Posts: 400

I'm curious as to what this electrical device is called and what its purpose is. I've noticed a lot of them recently, usually situated under pole transformers.

0

Comments

#2 17-01-2019 2:59pm

RandomUsername

Registered Users, Registered Users 2 Posts: 276 ✭✭

Join Date: April 2009

Posts: 251

They're fuses, one for each phase

0
#3 17-01-2019 3:02pm

tomoliver

Closed Accounts Posts: 84 ✭✭

Join Date: January 2019

Posts: 81

I think it's what they call a fused cutout

Probably to protect and isolate supply to transformer

0
#4 17-01-2019 3:15pm

bothyhead

Registered Users, Registered Users 2 Posts: 442 ✭✭

Join Date: July 2008

Posts: 400

Today is the first time I've seen one of them open. I was always perplexed why they are mounted horizontally. A fused cutout makes sense, as they will drop open by gravity.

Thanks.

0