I have a garage requiring power . Firstly I have a 12 way CU with spare mcbs then from there my cable run to the rear of the property is unhindered , so can use any size or type of cable i want , however this where it gets problematic . The route the cable needs to take from the rear of the house to the garage is a blue poly pipe buried in the concrete this pipe has an internal diameter of 14mm. So my question is what cable to use on this run . would i be alright with 4mm . I realise in an ideal world this would be armoured but the pipe restricts me from using that The garage is eagerly awaiting a supply ,it has a garage CU supplying one power ring with 5 sockets and on lighting circuit.that i have just installed . No heating will be required in the garage .
Distance from Main CU to rear of property 20m
Distance from rear of property to Garage CU 7m
Thank you for your time in reading this
Distance from Main CU to rear of property 20m
Distance from rear of property to Garage CU 7m
Thank you for your time in reading this