K
Kevonius
Hello
I wondered if you could help?
I’m only domestic installer and have been asked aboutthe following
There is a 3 phase 200A metered supply into a factory unit.From the meter it goes straight into a pull handle isolator with fuses for eachphase (old Colours). All wiring from that point has been removed.
Some offices are being built inside the unit and need to be suppliedwith single phase power like within a domestic property with the following
1 x Ring MainOffice
1 x RingMain Kitchen/Hallway/meeting room (no Oven)
1 x Lightcircuit (Fluorescence)
1 x Lightcircuit (Security)
1 x AlarmCircuit
1 x Radial Circuit(Hand Driers)
1 x RadialCCTV
Then theyneed 3 Phase power to the workshop(not all M/C running at the same time)
3 x 64A Pointsfor M/C
6 x 32A Pointsfor M/C
5 x 16A Pointsfor M/C
8 x Doublesockets (220V)
My questionis should I use a 17[SUP]th[/SUP] Edition Consumer unit for the office area takenfrom 1 of the phases or should I use a 3 phase consumer unit to balance thephases?
I haveminimal 3 phase experience, so not sure what to do on the 3 phase side, can Iuse a high current carrying capacity cable for each phase + N & E (like aradial circuit) & drop this to each of the 14 x 3 phase points around theworkshop and fit breakers at these points (this means they would be in serieslike spurs) or put the breakers on a ring main type circuit with a 100A breakerat the CCU
Thanks foryour help
I wondered if you could help?
I’m only domestic installer and have been asked aboutthe following
There is a 3 phase 200A metered supply into a factory unit.From the meter it goes straight into a pull handle isolator with fuses for eachphase (old Colours). All wiring from that point has been removed.
Some offices are being built inside the unit and need to be suppliedwith single phase power like within a domestic property with the following
1 x Ring MainOffice
1 x RingMain Kitchen/Hallway/meeting room (no Oven)
1 x Lightcircuit (Fluorescence)
1 x Lightcircuit (Security)
1 x AlarmCircuit
1 x Radial Circuit(Hand Driers)
1 x RadialCCTV
Then theyneed 3 Phase power to the workshop(not all M/C running at the same time)
3 x 64A Pointsfor M/C
6 x 32A Pointsfor M/C
5 x 16A Pointsfor M/C
8 x Doublesockets (220V)
My questionis should I use a 17[SUP]th[/SUP] Edition Consumer unit for the office area takenfrom 1 of the phases or should I use a 3 phase consumer unit to balance thephases?
I haveminimal 3 phase experience, so not sure what to do on the 3 phase side, can Iuse a high current carrying capacity cable for each phase + N & E (like aradial circuit) & drop this to each of the 14 x 3 phase points around theworkshop and fit breakers at these points (this means they would be in serieslike spurs) or put the breakers on a ring main type circuit with a 100A breakerat the CCU
Thanks foryour help