RCD Protection for submains

[Bellendian]

That you should code in accordance with BS7671.
i.e. don’t code a socket for non-compliance with a requirement that was dropped 11 years ago.

It wasn't really 'dropped' though, simply superceded by the requirement that all socket outlets below 20a require 30ma additional protection.
But the level of danger posed remains different as per the best practice guidance. That states c2 if kit likely to be used outdoors and c3 for other socket outlets if I remember correctly.

 

[Toneyz]

Is it just me, when replaying to a comment the dam site freezes and you end up posting the same message twice!

Yes, for some time now I thought it was only me!

 

[DPG]

Just to lighten things up a bit, what happened to the thread where the guy was openly offering cash for someone doing his course work ?? Has it been deleted?

 

[Bellendian]

Mods must have done a deal

 

[Deleted member 26818]

It wasn't really 'dropped' though, simply superceded by the requirement that all socket outlets below 20a require 30ma additional protection.
But the level of danger posed remains different as per the best practice guidance. That states c2 if kit likely to be used outdoors and c3 for other socket outlets if I remember correctly.

That’s probably where this confusion originates.
BS7671 no longer says “may reasonably be expected to supply portable equipment for use outdoors”.
It now says shall be provided for mobile equipment for use outdoors.
The requirement has shifted from the socket to the mobile equipment.

 

[Deleted member 26818]

I think the server doesn’t have enough RAM.

 

[Upton Sparks]

Any reason why you dislike my post Anthony ?Please feel free to comment.

 

[Toneyz]

Any reason why you dislike my post Anthony ?Please feel free to comment.

Yes the reason was the same as DPG gave there is no discrimination between the two RCD's should a fault happen of say 35mA to one of the electrical items used in one of the rooms.

 

[Risteard]

not how people might use the installation.

How the installation is used is absolutely relevant.

 

[Risteard]

The requirement has shifted from the socket to the mobile equipment.

It really hasn't shifted. It has been enhanced to cover all socket-outlets. So you can't sensibly claim that the requirement has been removed.