was thinking about this last night.
Is the problem overloading the section of spur closest to the ring?
If you connect a spur off a spur the max load from the furthest socket is 13A, therefore the max load off the first bit of spur is therefore 26A.
If you connect the spur using 4mm cable then it can carry 25A safely.
If the main trip that protects the ring that the spur comes off is a 16A MCB, surely you cant overload that section of cable.
Surely this is the same principle as a radial. (just fed from a ring rather than a CU).
Also in theory isnt the main supply to your house a ring, and therefore if you connect a radial circuit to a your CU you are connecting a spur off a spur (albeit with a protecting MCB)
Is the problem overloading the section of spur closest to the ring?
If you connect a spur off a spur the max load from the furthest socket is 13A, therefore the max load off the first bit of spur is therefore 26A.
If you connect the spur using 4mm cable then it can carry 25A safely.
If the main trip that protects the ring that the spur comes off is a 16A MCB, surely you cant overload that section of cable.
Surely this is the same principle as a radial. (just fed from a ring rather than a CU).
Also in theory isnt the main supply to your house a ring, and therefore if you connect a radial circuit to a your CU you are connecting a spur off a spur (albeit with a protecting MCB)