Overall main switch where the installtion has off peak heating ?

[Wilko]

Hi - that’s a bit of a mad person’s breakfast ... Perhaps ask DNO to supply an isolator? Or use a 4 pole yourself.

 

[Midwest]

edited

Obviously the ideal is a four pole isolator, however there is some consideration that the post Des56 has just made is the point I was to make! Too slow.

What was his/your point?

 

[Midwest]

Perhaps in the confusing set up that FatAlan posted, one isolator would a consideration. But in a simple set up with DB's side by side and clearly labelled, I see no need for one point of isolation.

And I know this has been argued before, i.e. disconnection of supply.

 

[Charlie_]

2 DP isolators side by side in an enclosure.. 1 labeled DB1 the other DB2?

 

[Richard Burns]

What was his/your point?

It is two installations

 

[FatAlan]

Hi - that’s a bit of a mad person’s breakfast ... Perhaps ask DNO to supply an isolator? Or use a 4 pole yourself.

DNO is UKPN who won’t provide isolator. Apparently I have to speak to supplier which may make sense if also dealing with an off peak supply as well.

 

[Des 56]

What was his/your point?

Nothing worthy of note.
Sorry it was unfortunately quickly deleted,thats after I became aware I was possibly once again going on one of my regrettable rants

 

[spud1]

I confirmed your helpful answers with some good old fashioned book wormin! Guidance note 2 section 4.2 page 48 (in the 18th edition version). TWO MAIN SWITCHES IN DIFFERENT CUs is FINE SO LONG AS APPROPRIATE LABELLING IS PRESENT. Thanks for all your replies.