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Cables installed in single way ducts

Group rating factors for multicore core cables in single way ducts, horizontal formation (average value)


   
Spacing
 

Number Of Ducts In Ground

 Touching 0.30m 0.45m 0.60m
3.6/6 to
12/20kV
Cables		 2 0.88 0.91 0.93 0.94
3 0.80 0.84 0.87 0.89
4 0.75 0.81 0.84 0.87
5 0.71 0.77 0.82 0.85
6 0.69 0.75 0.80 0.84
18/30kV
cables		 2 0.87 0.89 0.92 0.93
3 0.78 0.82 0.85 0.87
4 0.73 0.78 0.82 0.85
5 0.69 0.75 0.79 0.83
6 0.67 0.73 0.78 0.82