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What can be worse than electrical installations on a farm, or in a pub?...... Chippys!
Got a phone call from my local.... Lights and kitchen equipment not working... needs checked by a sparky before Scottish Power would attend. She'd blown a main fuse!
So ive been tasked with working out the loads across 3 phases... see which phase does what and how it can be better distributed across the phases.
I nipped in last night for a quick look. She had power but had been told not to run everything. 2 phases were at roughly 40A, the 3rd at about 25A...
Feeling the fuses with the back of my hand, the ones pulling 40A were warm compared to the 25. (no clue what the actual size of fuse is, might have to ask SP myself)
One phase runs her house through the back (of course, that was the one that blew)
All very well working out what each piece of equipment takes... but during opening hours, the power cycling through each thermostat control could throw the balance all over the place. I suspect she turns everything on at once, pulling maximum until whatever switches off on thermostat.
Got a phone call from my local.... Lights and kitchen equipment not working... needs checked by a sparky before Scottish Power would attend. She'd blown a main fuse!
So ive been tasked with working out the loads across 3 phases... see which phase does what and how it can be better distributed across the phases.
I nipped in last night for a quick look. She had power but had been told not to run everything. 2 phases were at roughly 40A, the 3rd at about 25A...
Feeling the fuses with the back of my hand, the ones pulling 40A were warm compared to the 25. (no clue what the actual size of fuse is, might have to ask SP myself)
One phase runs her house through the back (of course, that was the one that blew)
All very well working out what each piece of equipment takes... but during opening hours, the power cycling through each thermostat control could throw the balance all over the place. I suspect she turns everything on at once, pulling maximum until whatever switches off on thermostat.