Hi,
So i’ve recently put a 100m length of SWA 2-core 2.5 to the other end of a field with a 16a commando socket at the bottom. It’s for a shepard hut to go down the bottom to be plugged in and out.
The breaker it goes to inside the house where I’ve wired it in is a B16, onto the RCD that is already there (as there was 1 space left). The breakers inside the shepard hut are a B6 for lights and B10 for sockets. Only a microwave and kettle will be plugged in and occasionally a phone/laptop charger.
I ran tests yesterday, but i’ve only just passed my 2491-52 course (test and inspect). Insulation res was <500, earth loop between live and neutral is 1.79, with a PFC of 137A. Max in BS7671 is 2.7, so i thought that’s ok. However when i ran a test for the earth loop between live neutral and earth, it is 26.2ohm with a pfc of 9A. Am I right thinking this should be the same and it is way too high? Or is it safe to put power to because it’s just to do with the distance of cable in one run? Cheers
So i’ve recently put a 100m length of SWA 2-core 2.5 to the other end of a field with a 16a commando socket at the bottom. It’s for a shepard hut to go down the bottom to be plugged in and out.
The breaker it goes to inside the house where I’ve wired it in is a B16, onto the RCD that is already there (as there was 1 space left). The breakers inside the shepard hut are a B6 for lights and B10 for sockets. Only a microwave and kettle will be plugged in and occasionally a phone/laptop charger.
I ran tests yesterday, but i’ve only just passed my 2491-52 course (test and inspect). Insulation res was <500, earth loop between live and neutral is 1.79, with a PFC of 137A. Max in BS7671 is 2.7, so i thought that’s ok. However when i ran a test for the earth loop between live neutral and earth, it is 26.2ohm with a pfc of 9A. Am I right thinking this should be the same and it is way too high? Or is it safe to put power to because it’s just to do with the distance of cable in one run? Cheers