Extend new circuit from outhouse into another property with an existing supply, which is bad idea or not allowed?

AJJewsbury:

Existing sockets are part of a ring for the power sockets for the whole house which is shared by several appliances including a massive boiler. Adding these extra appliances will far exceed the rating for the power supply and the building has concrete floors with tiles on them and brick walls with no insulation. It is also 3 rooms away from the consumer unit which makes it much more effort intensive to run a new circuit to it.

Presumably as gas or oil boiler - not fully electric? So the ring is only supply the pump & controls - so likely load probably less than an amp?


What sort of floor area are we talking about for the whole house? 30A rings were originally designed for 1000 ft² post-war houses with no thermal insulation with electric heating used simultaneously in two or three rooms.


Would it make sense to split the ring? E.g. a couple of new cables to some point on the existing ring (hopefully nearer the CU than the new appliance) back to the CU and turn the single ring into two?


   - Andy.

House is around 2000 sq ft and the garage is maybe just under 500 sq. ft. Solid brick walls with cavity insulation and large ventilation grills on the wall (that lets air pass through both interior and exterior wall as the property is in a Radon affected area).


The boiler is gas powered but fires up every time a tap or heater is turned on. The other appliances are several mixers, grinders, food processing units in a kitchen that operates pretty much all through the day, qutie a lot of datacenter kind of servers (each server pulls 3kw sometimes), networking equipment and what not.


Appliances coming in will be expected to used 3-4x a day (and each cycle runs upto 90 minutes) and due to housekeeping demands / shift patterns it is hard to predict when they will be used. The same devices (dishwasher and washing machine) also exist in another part of the house and could be used simultenously; they would share the ring if a new supply was not pulled in.


Really impossible to bring a new circuit in without a lot of civil works and they are already pushing the 60A home fuse limit! Since there is another 3 phase supply in the grounds they are keen to use that.

AJJewsbury:

Existing sockets are part of a ring for the power sockets for the whole house which is shared by several appliances including a massive boiler. Adding these extra appliances will far exceed the rating for the power supply and the building has concrete floors with tiles on them and brick walls with no insulation. It is also 3 rooms away from the consumer unit which makes it much more effort intensive to run a new circuit to it.

Presumably as gas or oil boiler - not fully electric? So the ring is only supply the pump & controls - so likely load probably less than an amp?


What sort of floor area are we talking about for the whole house? 30A rings were originally designed for 1000 ft² post-war houses with no thermal insulation with electric heating used simultaneously in two or three rooms.


Would it make sense to split the ring? E.g. a couple of new cables to some point on the existing ring (hopefully nearer the CU than the new appliance) back to the CU and turn the single ring into two?


   - Andy.

House is around 2000 sq ft and the garage is maybe just under 500 sq. ft. Solid brick walls with cavity insulation and large ventilation grills on the wall (that lets air pass through both interior and exterior wall as the property is in a Radon affected area).


The boiler is gas powered but fires up every time a tap or heater is turned on. The other appliances are several mixers, grinders, food processing units in a kitchen that operates pretty much all through the day, qutie a lot of datacenter kind of servers (each server pulls 3kw sometimes), networking equipment and what not.


Appliances coming in will be expected to used 3-4x a day (and each cycle runs upto 90 minutes) and due to housekeeping demands / shift patterns it is hard to predict when they will be used. The same devices (dishwasher and washing machine) also exist in another part of the house and could be used simultenously; they would share the ring if a new supply was not pulled in.


Really impossible to bring a new circuit in without a lot of civil works and they are already pushing the 60A home fuse limit! Since there is another 3 phase supply in the grounds they are keen to use that.