Cable: PVC Singles

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PVC Singles 6491X to bs6004

Table 4D1A – Single core

70ºC thermoplastic insulated cables, nonarmoured, with or without sheath (copper conductors)

Conductor cross-sectioal areaReference Method A (enclosed in conduit in thermally insulating wall etc.)Reference Method B (enclosed in conduit on a wall or in trunking etc)Reference Method C (clipped direct)Reference Method F (in free air or on a perforated cable tray, horizontal or vertical)
TouchingSpaced by one diameter
2 cables, single-phase A.C or D.C3 or 4 cables, three -phase A.C2 cables, single-phase A.C or D.C3 or 4 cables, three -phase AC2 cables, single-phase AC or D.C flat & touching3 or 4 cables, threephase A.C flat & touching or trefoil2 cables, single-phase AC or D.C flat3 cables, three -phase AC flat3 cables, three -phase AC trefoil2 Cables, single-phase A.C or D.C or 3 cables three-phase A.C. flat
mm2AAAAAAAAAAA
1.514.513.517.515.52018-----
2.5201824212725-----
4262432283733-----
6343141364743-----
10464257506559-----
16615676688779-----
25807310189114104131114110146130
359989125110141129162143137181162
50119108151134182167196174167219197
70151136192171234214251225216281254
95182164232207284261304275264341311
120210188269239330303352321308396362
150240216300262381349406372356456419
185273245341296436400463427409521480
240320286400346515472546507485615569
300367328458394594545629587561709659
400--546467694634754689656852795

Table 4D1B

Conductor operating temperature: 70°C
Voltage drop (millivolts per ampere per metre)

Conductor cross-sectional area 2 cables D.C. 2 cables - single phase A.C. Reference Methods A & Bn(Enclosed in conduitnor trunking) 2 cables - single phase A.C. Reference Methods C & Fn(clipped direct, on tray or in free air)
Cables Touching Cables Spaced*
mm2mV/A/mmV/A/mmV/A/mmV/A/m
144444444
1.529292929
2.518181818
411111111
67.37.37.37.3
104.44.44.44.4
162.82.82.82.8
rxzrxzrxz
251.751.80.331.81.750.21.751.750.291.8
351.251.30.311.31.250.1951.251.250.281.3
500.930.950.310.930.190.950.930.280.97
700.630.650.290.720.630.1850.660.630.270.69
950.460.490.280.560.470.180.50.470.270.54
1200.360.390.270.470.370.1750.410.370.260.45
1500.290.310.270.410.30.1750.340.290.260.39
1850.230.250.270.370.240.170.290.240.260.35
2400.180.1950.260.330.1850.1650.250.1850.250.31
3000.1450.160.260.310.150.1650.220.150.250.29
4000.1050.130.260.290.120.160.20.1150.250.27
5000.0860.110.260.280.0980.1550.1850.0930.240.26

SPACINGS LARGER THAN ONE CABLE DIAMETER WILL RESULT IN A LARGER VOLTAGE DROP

Table 41DB (Continued)

Conductor cross-sectional area 3 or 4 cables - Three phase A.C. Reference Methods A & Bn(Enclosed in conduit or trunking) 3 or 4 cables - Three phase A.C. Reference Method C & Fn(clipped direct, on tray or in free air)
Cables touching, trefoil Cables touching, flat Cables spaced*, flat
mm2mV/A/mmV/A/mmV/A/mmV/A/m
138383838
1.525252525
2.515151515
49.59.59.59.5
66.46.46.46.4
103.83.83.83.8
162.42.42.42.4
Rxzrxzrxzrxz
251.50.291.551.50.1751.51.50.251.551.50.321.55
351.10.271.11.10.171.10.241.11.11.10.321.15
500.810.260.850.80.1650.820.80.240.840.80.320.86
700.560.250.610.550.160.570.550.240.60.550.310.63
950.420.240.480.410.1550.430.410.230.470.40.310.51
1200.330.230.410.320.150.360.320.230.40.320.30.44
1500.270.230.360.260.150.30.260.230.340.260.30.4
1850.220.230.320.210.1450.260.210.220.310.210.30.36
2400.170.230.290.160.1450.220.160.220.270.160.290.34
3000.140.230.270.130.140.190.130.220.250.130.290.32
4000.120.220.250.1050.140.1750.1050.210.240.10.290.31
5000.10.220.250.0860.1350.160.0860.210.230.0810.290.3

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