Medium Voltage Cables/Group Rating Factors/Cables installed in single way ducts


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