SP/DP RCBO's for domestic .Do you have a preference ?

[LukeD]

Ive seen a few guys happy to fit both and a couple of others who only fit DP's . Do you have a preference ?

 

[stevethesparks]

Now available at a reasonable price DP all the way - cant see a reason not to.

 

[LukeD]

Now available at a reasonable price DP all the way - cant see a reason not to.

True....the drop in price is amazing .

 

[timhoward]

Preference will always be DP so
Neutral - earth faults are localised.

 

[davesparks]

I haven't done much domestic in years, is there now a readily available option for CUs that accept SPSN or DP devices?

My preference when I was doing more domestic was to use SPSN RCBO's when possible.

 

[nicebutdim]

I haven't done much domestic in years, is there now a readily available option for CUs that accept SPSN or DP devices?

My preference when I was doing more domestic was to use SPSN RCBO's when possible.

A number of manufacturers now offer SPSN RCBOs, with some doing so at very reasonable prices.

 

[timhoward]

I haven't done much domestic in years, is there now a readily available option for CUs that accept SPSN or DP devices?

Fusebox brand. It’s very good

 

[Mike Johnson]

Only option in Europe is DP we will eventually catch up.

Ohh do I dare say and use radials only and no loop in lighting.

 

[davesparks]

Only option in Europe is DP we will eventually catch up.

Ohh do I dare say and use radials only and no loop in lighting.

What do you mean by catch up? What in our electrical systems requires DP protection? Mainland Europe requires DP protection due to the differences in our systems.

 

[Mike Johnson]

Now how did I know it was going to be you that questioned my post.

 

[davesparks]

Now how did I know it was going to be you that questioned my post.

I don't know, but I am interested to know what exactly it is we need to 'catch up' with?

We have LV distribution which has a reliably earthed neutral so why would we need DP protection?

I fully support the use of SPSN residual current protection but I see no need for DP protection.

 

[LastManOnline]

What do you mean by catch up?

He is referring to the advantages of DP rcbo,s over single pole.

What in our electrical systems requires DP protection?

While it may not be a requirement ,it is always a benefit for final circuits to have DP isolation.

Mainland Europe requires DP protection due to the differences in our systems.

Mainland Europe uses the same electrical systems as the UK.

 

[davesparks]

He is referring to the advantages of DP rcbo,s over single pole.

While it may not be a requirement ,it is always a benefit for final circuits to have DP isolation.

Mainland Europe uses the same electrical systems as the UK.

DP rcbos don't have an advantage that is not also offered by SPSN RCBO's in the UK.

What is the benefit of DP protection in a system which had a reliably earthed neutral?

Mainland Europe does not have the same electrical system as the UK. For example their general purpose connector systems do not have polarity, whereas ours do.

As I have said may times one here I support the use of SPSN residual current protection, but I see no reson for DP protection generally.

I don't like this idea that 'DP is better than SP' without having a good supporting argument. Years ago in the UK DP protection was the standard because it was necessary, but we improved our electrical systems so that it is no longer required.

 

[timhoward]

As I have said may times one here I support the use of SPSN residual current protection, but I see no reson for DP protection generally.

i agree there is no need for over current protection on the Neutral unless it’s a specialist installation.
We also need to throw into the mix that several manufacturers call RCBOs double pole for ease when they are actually SPSN in reality.
There could therefore be terminology confusion here too.

 

[Mike Johnson]

I think its Double pole vs Double module that cause's the confusion.