Edwards EDS 065

6996 0223 96 Issue A
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 For supply cables up to AWG8: same size as the supply cables
 For supply cables larger than AWG8: use maximum allowed capacity
< 100 A: Use AWG8
< 200 A: Use AWG6
< 300 A: Use AWG4
Always check the voltage drop over the cable (less than 5 % of the nominal voltage is recommended).
Example of supply cable calculation: Itot = 128 A, maximum ambient temperature is 45 °C, recommended
fuse = 150 A
 Single supply cables (3 phases + 1 PE - configuration (1)):
 I = 128 A + 25 % = 128 x 1.25 = 160 A
 For AWG2/0, the maximum current is 175 A, which is sufficient => use AWG2/0
 Install the prescribed maximum fuse (150 A) on each cable
 Parallel supply cable (2 x 3 phases + 2 PE - configuration (2)):
 I = (128 A + 25%)/2 = (128 x 1.25)/2 = 80 A
 For a AWG4, the maximum current is 85 A x 0.8 = 68 A, which is insufficient. For an AWG3, the
maximum current is 100 x 0.8 = 80 A. So 2 parallel cables of 3 x AWG3 + 2 x AWG8 are sufficient.
 Install 80 A fuses on each cable.