Hi
I need to run a supply to the garage at the end of the garden, approximately 30 meters from the house. The load on the garage will be just a tumble dryer and a light and there is no water supply in the garage.
The main building supply is PME and theres is no spare ways in the CU. The DNO have already fitted an isolator after the main fuse and before the CU. A number of questions arise:-
1. I propose to take the supply to the garage by fitting a Henry block after the DNO isolator and introducing a second pair of meter tails 16mm into a small metal switched CU with a 20A MCB, thereby protecting the cable to the garage with the 20A fuse..
2. Run a three core 6.0mm SWA from the new CU to the garage in a trench 600mm deep and terminate in the garage with another metal or insulated CU fitted with a 30mA RCD and two fuseways 16A & 6A for power and lighting.
Would the above method be compliant? Equally inportant is do I export the earth from the PME supply in the house and earth the SWA armour and the earth conductor in the cable to the PME earth or do I make the garage a TT system not connect the SWA to the PME earth.
Opinions on the above seem to differ greatly, can anyone shed some light on what is the definitive answer.
I need to run a supply to the garage at the end of the garden, approximately 30 meters from the house. The load on the garage will be just a tumble dryer and a light and there is no water supply in the garage.
The main building supply is PME and theres is no spare ways in the CU. The DNO have already fitted an isolator after the main fuse and before the CU. A number of questions arise:-
1. I propose to take the supply to the garage by fitting a Henry block after the DNO isolator and introducing a second pair of meter tails 16mm into a small metal switched CU with a 20A MCB, thereby protecting the cable to the garage with the 20A fuse..
2. Run a three core 6.0mm SWA from the new CU to the garage in a trench 600mm deep and terminate in the garage with another metal or insulated CU fitted with a 30mA RCD and two fuseways 16A & 6A for power and lighting.
Would the above method be compliant? Equally inportant is do I export the earth from the PME supply in the house and earth the SWA armour and the earth conductor in the cable to the PME earth or do I make the garage a TT system not connect the SWA to the PME earth.
Opinions on the above seem to differ greatly, can anyone shed some light on what is the definitive answer.