17th regs

[swifters]

I can't undertstand why RCD protection is required upto 20amp on sockets? They only make 13 amp sockets anyway dont they?

 

[malcolmsanford]

Because of these. Though not widely used in the domestic home they can be and are rated at 16amps So will come under the RCD 411.3.3

MK_k9201.jpg
300 × 300 - CEE Type Surface Mounting Sockets IP44

 

[Kinverian]

No, 16A socket outlets are common in industrial and commercial premises, and the RCD protection is as important on those as it is on the 13A variety. Many 16A installations do not have RCD's fitted as they are often used for IT equipment and under the control of a suitably qualified person, but the same rules apply.

 

[swifters]

No, 16A socket outlets are common in industrial and commercial premises, and the RCD protection is as important on those as it is on the 13A variety. Many 16A installations do not have RCD's fitted as they are often used for IT equipment and under the control of a suitably qualified person, but the same rules apply.

Thank you. Never knew that. Is 16a the largest then? Or do they go upto 20a?

 

[Kinverian]

The next one up is the 32A variety, usually red. However, these do not come under the same regulation as they are above the 20A threshold

 

[ian.settle1]

The next one up is the 32A variety, usually red. However, these do not come under the same regulation as they are above the 20A threshold

Correct and incorrect, you can get a 32A single phase socket which is blue, red denotes that it is 400v as yellow denotes 110v different voltage ratings have different colours.

 

[swifters]

seems a bit pointless having 20a as the limit then really?

 

[Kinverian]

Correct and incorrect, you can get a 32A single phase socket which is blue, red denotes that it is 400v as yellow denotes 110v different voltage ratings have different colours.

Quite right, I stand corrected

 

[Deleted member 19807]

seems a bit pointless having 20a as the limit then really?

I think for once it makes sense, if it was up to 16A then would a 16A socket need it or not? setting it at 20A means there is no confusion.

 

[swifters]

Yes, I suppose that makes sense actually.