Group Rating Factors For more than One Twin or Multicore Armoured Or Unarmoured Cables In Horizontal Formation Laid In Direct Ground:

No. of cables	2	3	4	5	6	7	8	9	10	11	12
Cables laid touching	0.81	0.7	0.63	0.59	0.55	0.52	0.5	0.48	0.47	0.45	0.44
Cables laid 15 cm apart	0.87	0.78	0.74	0.70	0.68	0.66	0.64	0.63	0.62	0.61	0.6
Cables laid 30 cm apart	0.91	0.84	0.81	0.78	0.77	0.75	0.75	0.74	0.73	0.73	0.72
Cables laid 45 cm apart	0.93	0.88	0.86	0.84	0.83	0.82	0.81	0.81	0.8	0.8	0.8
Cables laid 60 cm apart	0.95	0.9	0.89	0.87	0.87	0.86	0.86	0.85	0.85	0.85	0.84

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