Discuss ring v radial in the Electricians' Talk area at ElectriciansForums.net
whats wrong with swa as cpc ?
over a certain size its cheaper to run a single earth than using an extra core in swa
for 25mm you dont need to do either.
use the swa for earth.
4 core will suffice using armouring as your cpc mate as long as you gland it correctly and it passes all the relevant tests as the guys have already stated..............me.................5 core every time and dedicated earth core bolted and bonded and earthed to everything with 6mm brass nuts and bolts5 core swa
Conductor CSA | Minimum CSA of SWA to meet 54G | CSA of armour 2 core | CSA of armour 3 core | CSA of armour 4 core |
1.5 | 3.4 | 15 | 16 | 17 |
2.5 | 5.7 | 17 | 19 | 20 |
4 | 9.0 | 21 | 23 | 35 |
6 | 13.6 | 24 | 36 | 40 |
10 | 22.6 | 41 | 44 | 49 |
16 | 36.1 | 46 | 50 | 72 |
25 | 36.1 | 60 | 66 | 76 |
35 | 36.1 | 66 | 74 | 84 |
50 | 56.4 | 74 | 84 | 122 |
70 | 79.0 | 84 | 119 | 138 |
95 | 107.2 | 122 | 138 | 160 |
120 | 135.3 | (131) | 150 | 220 |
150 | 169.2 | (144) | 211 | 240 |
185 | 208.6 | (201) | 230 | 265 |
240 | 270.6 | (225) | (260) | 299 |
300 | 338.3 | (250) | (289) | (333) |
400 | 403.9 | (279) | (319) | 467 |
Conductor CSA | Minimum CSA of SWA to meet 54G | CSA of armour 2 core | CSA of armour 3 core | CSA of armour 4 core |
1.5 | 3.4 | 16 | 17 | 18 |
2.5 | 5.7 | 17 | 19 | 20 |
4 | 9.0 | 19 | 21 | 23 |
6 | 13.6 | 22 | 23 | 36 |
10 | 22.6 | 26 | 39 | 43 |
16 | 36.1 | 41 | 44 | 49 |
25 | 36.1 | 42 | 62 | 70 |
35 | 36.1 | 62 | 70 | 80 |
50 | 56.4 | 68 | 78 | 90 |
70 | 79.0 | 80 | 90 | 131 |
95 | 107.2 | 113 | 128 | 147 |
120 | 135.3 | (125) | 141 | 206 |
150 | 169.2 | (138) | 201 | 230 |
185 | 208.6 | (191) | 220 | 255 |
240 | 270.6 | (215) | (250) | 289 |
300 | 338.3 | (235) | (269) | (319) |
400 | 451.0 | (265) | (304) | 452 |
well i dont even need the extra core , but any job most of time i notice one tied to it but if i can get 5c which cable dosent metion well
salt laden area sea front
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