What would you put down for the main earthing conductor? As it's PME it's hidden inside somewhere with nothing on show. The meter room feeds several Ottermills, which then feed down to the boards I've worked on - at which point do I measure the CSA of the earth? Would I be best to put down 16mm as that's the earth to the board I've worked on for this certificate? I'm really stuck with which figures need to be noted and I would have thought the first bit of earth on show is once you get inside a submain, everything before that is nasty busbar stuff in the Ottermills.
Same for the bonding, it's all hidden away, the gas meter is in an outside building and feeds the school from underground. I guess the bonding will join the gas main as close as possible to where it comes into the building, and not outside where the meter is. This splits to about 12 boiler rooms around the site.
Thanks for everyone's help so far but I'm really struggling with the scale of this place, the work is no different from normal but when the main supply and distribution is so huge how do you go about filling in these bits on the cert?
Same for the bonding, it's all hidden away, the gas meter is in an outside building and feeds the school from underground. I guess the bonding will join the gas main as close as possible to where it comes into the building, and not outside where the meter is. This splits to about 12 boiler rooms around the site.
Thanks for everyone's help so far but I'm really struggling with the scale of this place, the work is no different from normal but when the main supply and distribution is so huge how do you go about filling in these bits on the cert?
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