SPD to cover whole site?

[chrisdicko]

I would suggest to managment a phased introduction. Pick the most vital of equipment to do first with a five year plan to achieve 100% compliance.

Yes, good idea. We can only power down on Sunday's, so would probably take 5 years and no-one wants to work them, haha.

As said, these are new to me, do you install them before the main switch of each DB?

 

[chrisdicko]

An SPD may very well not stop a surge in its tracks. On larger installations you need to stage it down so type 1 at the incomer then type 2 on each submain, each SPD reduces the surge down to acceptable levels.

I see, great thank you

 

[Nigel]

Yes, good idea. We can only power down on Sunday's, so would probably take 5 years and no-one wants to work them, haha.

As said, these are new to me, do you install them before the main switch of each DB?

Needs to be connected correctly and BS7671 states exactly how.

 

[Deleted member 26818]

Yes, good idea. We can only power down on Sunday's, so would probably take 5 years and no-one wants to work them, haha.

As said, these are new to me, do you install them before the main switch of each DB?

SPDs are spurred off the main switch.