Rules and Guidelines
Want to participate in the discussions? Please read our Community Rules and Guidelines. Need some help? Visit Support and Answers.

  • State Not Answered
  • Locked Locked
  • Replies 41 replies
  • Subscribers 33 subscribers
  • Views 8634 views
  • Users 0 members are here
Options
You may also be interested in
This discussion is locked.
You cannot post a reply to this discussion. If you have a question start a new discussion

Where to install a surge protection device - single phase domestic / light commercial supply

Arran Cameron

A surge protection device can be installed in two locations:

1. The consumer unit. This is the easiest to install but it takes up two spaces which may not always be available.

2. The isolator switch. This is more difficult to install as it involves having to remove the big fuse but it avoids taking up two spaces in the consumer unit.

Does anybody have any more comments or advice on the best location?

Proteus sells an attractive looking isolator switch with a 2 module SPD although it is a bit pricey compared with SPD modules for consumer units. Has anybody got experience of it?

Who actually owns an already installed isolator switch? Is it National Grid, the utility company, or the property owner?

Parents
  • 0

    How common is insulation breakdown in PVC?

    Melted & charred PVC is common enough - just check the shower switch threads. As I recall the standard for testing AFDDs requires insulation to be charred before the the test - as clean copper to copper doesn't produce nice arcs at all - so I if it's unlikely an RCD will spot the problem it's probably similarly unlikely an AFDD will.

       - Andy.

Reply
  • 0

    How common is insulation breakdown in PVC?

    Melted & charred PVC is common enough - just check the shower switch threads. As I recall the standard for testing AFDDs requires insulation to be charred before the the test - as clean copper to copper doesn't produce nice arcs at all - so I if it's unlikely an RCD will spot the problem it's probably similarly unlikely an AFDD will.

       - Andy.

Children
No Data

Join us to get the best from IET EngX.

Joining EngX lets you personalise your experience so you stay up to date on the topics that interest you, plus you’ll be able to make connections who are looking to collaborate, exchange ideas and more.

Join us Not now

Community Rules & Guidelines