Medium Voltage Cables/ Group Rating Factors/Group rating factors single core cables

Group rating factors single core cables

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


	Spacing
	Number Of Circuits	Touching	0.45m	0.60m
3.6/6 to 12/20kV Cables	2	0.85	0.88	0.90
	3	0.75	0.80	0.83
	4	0.70	0.76	0.80
	5	0.67	0.73	0.77
	6	0.64	0.71	0.76
18/30kV cables	2	0.85	0.88	0.90
	3	0.76	0.80	0.83
	4	0.71	0.76	0.80
	5	0.67	0.73	0.77
	6	0.65	0.71	0.76

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