Quincy Compressor QCV 045, Инструкция

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Section VIII - Technical data
50
Cable section
mm2
Ambient temperature
30°C 40°C 45°C 50°C 55°C
25 < 110 A < 96 A < 87 A < 78 A < 67 A
35 < 137 A < 119 A < 108 A < 97 A < 84 A
50 < 167 A < 145 A < 132 A < 119 A < 102 A
70 < 216 A < 188 A < 171 A < 153 A < 132 A
95 < 264 A < 230 A < 209 A < 187 A < 161 A
120 < 308 A < 268 A < 243 A < 219 A < 188 A
Calculation method for IEC:
 Single supply cables (3 PE - configuration (1)):
 Add 10 % to the total pump current (ItotPack or ItotFF from the tables)
 Install the prescribed fuse on each cable
 Parallel supply cable (2 x 3 PE - configuration (2)):
 Add 10 % to the total pump current (ItotPack or ItotFF from the tables) and divide by
2
 Multiply the ampacity of the cables with 0.8 (see table A.52.17 (52-E1))
 Install fuses of half the size of the recommended maximum fuse size on each cable.
 When using 2 x 3 PE as in (3):
 Add 10 % to the total pump current (ItotPack or ItotFF from the tables) and divide by
√3
 Multiply the ampacity of the cables with 0.8 (see table A.52.17 (52-E1))
 Fuse size: the recommended maximum fuse size divided by √3 on each cable.
 Size of the PE cable:
 For supply cables up to 35 mm²: same size as supply cables
 For supply cables larger than 35 mm²: half the size of the supply wires
Always check the voltage drop over the cable (less than 5 % of the nominal voltage is
recommended).
Example: Itot = 89 A, maximum ambient temperature is 45 °C, recommended fuse =
100 A
 Single supply cables (3 PE - configuration (1)):
 I = 89 A + 10 % = 89 x 1.1 = 97.9 A
 The table for B2 and ambient temperature = 45 ° C allows a maximum current of 93
A for a 50 mm²cable. For a cable of 70 mm², the maximum allowed current is 118 A,
which is sufficient. Therefore, use a 3 x 70 mm² + 35 mm² cable.
 If method C is used, 50 mm² is sufficient. (35 mm² for method F) => cable 3 x 50
mm² + 25 mm².
 Parallel supply cable (2 x 3 PE - configuration (2)):
 I = (89 A + 10 %)/2 = (89 x 1.1)/2 = 49 A
 For a cable of 25 mm², B2 at 45 °C, the maximum current is 63 A x 0.8 = 50.4 A. So
2 parallel cables of 3 x 25 mm² + 25 mm² are sufficient.

Install 50 A fuses on each cable instead of 100 A.