Ring Circuits - Fixed Electric Heating

So far as I can see, we have not established what if anything else is connected to this ring final circuit. Nor do we know what size OCPD is used, though 32 amps is very likely in the absence of statement otherwise.

We therefore can not reliably comment on the suitability or otherwise of the arrangement, I therefore repeat my earlier comments that it depends.

If this is a 32 amp ring final dedicated to the heaters, without any other significant loads, then in my view it is fine. Circuit designed for 32 amps, actual load about 25 amps, no problem.

If this is a 32 amp ring final that also serves socket outlets in the same room, then it is probably acceptable since use of other heating appliances is unlikely without making the room uncomfortable warm and turning off some of the heaters. Brief or short term use of a kettle or a power tool, or a large vacuum cleaner  might produce a slight short term overload, but prolonged use would result in turning off some of the heaters.

If this is a 32 amp ring final that also supplies socket outlets in other rooms, then in my view the arrangement is not acceptable since only about 7 amps of capacity is available for the other rooms in which heaters or other high loading appliances might reasonably be used.

In the rather unlikely event that this is a 45 amp ring final that also supplies socket outlets in other rooms, then it is probably acceptable since about 20 amps remains remains for those other rooms, which is probably sufficient unless unusually heavy use is expected.

That covers most possibilities, but we do not know which of the above circumstances apply.

So far as I can see, we have not established what if anything else is connected to this ring final circuit. Nor do we know what size OCPD is used, though 32 amps is very likely in the absence of statement otherwise.

We therefore can not reliably comment on the suitability or otherwise of the arrangement, I therefore repeat my earlier comments that it depends.

If this is a 32 amp ring final dedicated to the heaters, without any other significant loads, then in my view it is fine. Circuit designed for 32 amps, actual load about 25 amps, no problem.

If this is a 32 amp ring final that also serves socket outlets in the same room, then it is probably acceptable since use of other heating appliances is unlikely without making the room uncomfortable warm and turning off some of the heaters. Brief or short term use of a kettle or a power tool, or a large vacuum cleaner  might produce a slight short term overload, but prolonged use would result in turning off some of the heaters.

If this is a 32 amp ring final that also supplies socket outlets in other rooms, then in my view the arrangement is not acceptable since only about 7 amps of capacity is available for the other rooms in which heaters or other high loading appliances might reasonably be used.

In the rather unlikely event that this is a 45 amp ring final that also supplies socket outlets in other rooms, then it is probably acceptable since about 20 amps remains remains for those other rooms, which is probably sufficient unless unusually heavy use is expected.

That covers most possibilities, but we do not know which of the above circumstances apply.