MAINS DISTRIBUTION GUIDE
USEFUL MAINS CALCULATIONS & INFORMATION All calculations are for guidance only and should be used in conjunction with BS7909 guidelines. Watts to Amps 1000 Watts @ 230v = 4.35 Amps 2000 Watts @ 230v = 8.70 Amps 3000 Watts @ 230v = 13.05 Amps Amps to Watts Blinding Light Cable Colour Coding Yellow = 2m 10 Amps @ 230v = 2300 Watts 16 Amps @ 230v = 3680 Watts 20 Amps @ 230v = 4600 Watts 32 Amps @ 230v = 7360 Watts 63 Amps @ 230v = 14,490 Watts 125 Amps @ 230v = 28,750 Watts Generator KVA Ratings Results are based on a generator producing 400v 3 phase at 50Hz with a 0.8 power factor. Grey = 5m Blue = 10m Red = 15m 100 KVA = 80kw / 144 Amps 150 KVA = 120kw / 217 Amps 200 KVA = 160kw / 289 Amps 300 KVA = 240kw / 433 Amps 400 KVA = 320kw / 577 Amps Mains Cable Ratings - H07RN-F All calculations given are based on max Amps in free air. 25mm Cable Diameter = 142 Amps 35mm Cable Diameter = 162 Amps 50mm Cable Diameter = 198 Amps 70mm Cable Diameter = 256 Amps 95mm Cable Diameter = 314 Amps 120mm Cable Diameter = 365 Amps 150mm Cable Diameter = 422 Amps Purple = 20m Purple / Grey = 25m Green = 30m Orange = 40m Brown = 50m
SINGLE PHASE DISTRIBUTION Type 1-1 16a 1ph 6x 13a, 1x 16a N/A Type 1-2 16a 1ph 4 x 16a N/A
Type 1-3 32a 1ph 4x 16a, 1ph 2x C Type 16a MCB Type 1-4 32a 1ph 4x 16a 1ph 4x 16a MCB Type 1-5 32a 1ph 4x 16a 4x 16a MCB, 1x 32a 30ma DP RCBO
Type 1-6 32a 1ph 32a 1ph 32a 1ph RCBO Type 1-7 63a 1ph 1x 63a, 2x 32a & 4x 16a 1ph All outputs individual 30ma RCBO, Overall 63a DP MCB Type 1-8 63a 1ph 2x Socapex (paired) 6x 16a RCBO, 1x 63a DP MCB
THREE PHASE DISTRIBUTION Type 3-1 32a 3ph 3x 32a 1ph (1 per phase) Each outlets individual 32a 30ma DP RCBO Type 3-2 32a 3ph 32a 3ph & 6x 16a 1ph 6x 16a 30ma DP RCD 32a 3ph Unprotected
Type 3-3 32a 3ph 32a 3ph & 6x 16a 1ph 1x 40a 30ma RCD, 1x TPD Type 32a MCB 6x 16a SP C Type MCB 32a 3ph thru MCB & EL Protected Type 3-4 Vari RCBO Type 3-5 RCBO
Type 3-6 2x Overall Vari RCBO Type 3-7 3x 32a 1ph, 12x 16a (1x32a & 4x 16a per phase) 1 x 63A TP MCB 3 x 32A 30ma DP RCBOs 12 x 16A 30ma DP RCBOs Type 3-8 2 x 32a 3ph 2 x 32a 30ma TP RCBO
Type 3-9 3 x 63a 1ph 3 x 63a 30ma DP RCBO 3 x 63a DP MCB s Type 3-9A 3x 63a 1ph 1 x (No ) 3 x 63a 30ma DP RCBO 3 x 63a DP MCB s Type 3-10 1x, 6 x 32a 1ph 2x 32a 3ph 1x TP RCBO 6 x 32a 1ph DP RCBO 2 x 32A 3ph TP RCBO
Type 3-11 125a 3ph 125a 3ph Vari RCBO (switchable) Type 3-12 125a 3ph 2x Vari RCBO per outlet Type 3-13 Powerlock 3 x 3x TP 63a MCB
Type 3-14 Powerlock 2 x 125a 3ph 2x 125a MCB Type 3-15 Powerlock (160-400a) c/w Vari MCCB 2x Powerlock - 2x 200a vari MCCB (200a>126a) adjustable/ switchable EL 1x Powerlock - 1x 400a vari MCCB (400a>160a) adjustable/ switchable EL, 3x - 4 Pole MCB protected c/w adjustable/switchable EL 13a 16a & 32a 1ph - 2 pole 30ma RCBO protected
Type 3-16 Powerlock 3ph 2 sets of Powerlock 3 phase N/A Type 3-18 Powerlock (160-400a) c/w Vari MCCB 2x Powerlock - 2x 200a vari MCCB (200a>126a) adjustable/ switchable EL 1x Powerlock - 1x 400a vari MCCB (400a>160a) adjustable/ switchable EL,1x 32a 3ph - 3 Pole MCB protected c/w Earth Leakage 13a 16a & 32a 1ph - 2 pole 30ma RCBO protected Type 3-19 3ph Powerlock 3ph Powerlock x2 3ph Powerlock x1 (Through) 400A 3P MCCB
Type HP1 1x Through, 3x Soca (1 per phase) 63a TP MCB with variable earth leakage Relay MCB, 18x 16a RCBO Type HP2 1x, 3x Soca, 18x 16a (1x Soca & 6x 16a per phase) 1x Vari RCBO, 18x 16a RCBO
Type HP3 125a 3ph &4x Socapex (Phasing Soca1&2-L1, Soca3-L2,Soca-L3) 63a TP MCB c/w RCCB 4x63a RCCD/Socapex 24x16a C Type MCB Type HP4 3 Phase Powerlock & 6x Socapex (2 per phase) 36x 16a RCBO, 63x MCB, 1x 16a DP RCBO Type HP5 3ph Powerlock 3ph Powerlock, 63a 3ph 6x Soca (2 per phase) 400A MCB, 63a TP MCB c/w Vari EL 36 x 16a 2p 30ma RCBO
Type HP12 3ph Powerlock 3ph Powerlock (Through), 1x Schuko, 1x 13a, 7x 16a, 32a 3ph,, 12x Soca (4 per phase) 72x RCBO 16a/C/30ma 2p 9x RCBO 16a/C/30ma 2p 1x MCB 32a/C/3p + RCD 40A 30MA 4p 1x MCB 63a/C/3p + RCD 63A 30MA 4p
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