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  Convertions Factors for Current Carrying Cap...
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  Capacity of Cable Drums
 
 

Convertions Factors for Current Carrying Cap...

 

CONVERTION FACTORS FOR CURRENT CARRYING CAPACITIES (VDE 0298)

If laying of cables are different then normal conditions, current carrying capacities should be multiplied by below given factors.

Factors of different ambient temperatures for underground cable installation.

 

 

Cable Type

Soil Thermal Resistivity

0,7 1 1,5 2,5
XLPE izoleli kablolar 0,6/1 kV 20,3/35 kV

 

Load Factor 0,7 1,0 0,7 1,0 0,7 1,0 0,7 - 1,0

Ground temperature °C 

10

1,16

1,05   1,05 0,98 0,95 0,91 0,86
15 1,14 1,03   1,02 0,95 0,92 0,89 0,84
20 1,12 1,00   1,00 0,93 0,90 0,86 0,81
25       0,98 0,90 0,87 0,84 0,78
30       0,95 0,88 0,84 0,81 0,75
35         0,82 0,78 0,72
40             0,68
                   

PVC izoleli kablolar 0,6/1 kV 3,6/6 kV

Ground temperature °C

10 1,19 1,06   1,06 0,97 0,94 0,89 0,83
15 1,17 1,03   1,03 0,94 0,91 0,86 0,79
20 1,14 1,01   1,00 0,91 0,87 0,83 0,76
25       0,97 0,88 0,84 0,79 0,72
30       0,94 0,85 0,80 0,76 0,68
35         0,77 0,72 0,63
40             0,59