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NUMBER OF CABLES IN CONDUIT

Recommended maximum number of thermoplastic insulated unsheathed single core 0.6/1kV copper or aluminium cables permitted in metallic and non-metallic conduit or pipe.

Nominal size of conduit
Nom. conductor area16 LD20 HD25 LD25 HD32 LD32 HD40 LD40 HD50 LD50 HD63 LD63 HD80 HD
mm2 mm mm mm mm mm mm mm mm mm mm mm mm mm
1 7 10 21 18 36 33 60 55 96 89 - - -
1.5 5 8 17 15 30 27 48 45 78 73 129 120 -
2.5 4 6 12 11 22 20 36 33 58 54 95 89 -
4 2 4 8 7 14 13 23 21 37 34 61 56 120
6 2 3 6 5 11 10 18 16 29 27 47 44 93
10 1 2 4 4 8 7 13 12 21 19 34 32 67
16 1 1 3 3 6 5 9 9 15 14 26 24 51
25 1 1 2 2 4 3 6 6 10 9 17 16 34
35 - 1 1 1 3 2 5 4 8 7 14 13 27
50 - - 1 1 2 2 3 3 6 5 10 9 20
70 - - 1 1 1 1 3 2 4 4 8 7 15
95 - - - - 1 1 2 1 3 3 5 4 10
120 - - - - 1 1 1 1 2 2 4 3 8
150 - - - - 1 - 1 1 2 1 3 3 6
185 - - - - - - 1 1 1 1 2 2 5
240 - - - - - - 1 - 1 1 2 1 4
300 - - - - - - - - 1 1 1 1 3
400 - - - - - - - - 1 - 1 1 2
500 - - - - - - - - - - 1 1 2
630 - - - - - - - - - - 1 1 1

Notes:
1. For PVC flexible conduits, the recommendations are based on conduits used without fittings or with fittings only at the ends of the conduit run. Where intermediate fittings are used in a run of PVC flexible conduit, an appropriate reduction should be made in the number of cables drawn into the conduit.

2. One earth wire of appropriate size, as determined by the requirements of AS/NZS 3000, may be inserted in all conduits, provided that its insertion does not prevent easy drawing in of cables.

3. Table suitable for use with Olex manufactured product only.

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