Westweld NB-350MK, Инструкция по эксплуатации

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6
5.2 Power cable connection
Please refer to Figure 4 to connect the power supply cable of the welder:
(1) Installation must comply with national and local standards - only by professionals;
(2) The user must turn off the power switch in the power distribution box before connecting, and start connecting after
ensuring that the power is turned off;
(3) The power supply for this product is three-phase 380V AC 50/60Hz. Users should use the corresponding distribution box,
air switch (circuit breaker) and power cord. The selected distribution box and power cord must meet the relevant national
standards.
The conditions for the user's power supply should be as follows:
Specification NB-350MK NB-500MK
Switch capacitor
（
A
）
40 63
Fuse capacity
（
A
）
32 40
Power cable cross-sectional
area
（
mm
2
）
≥4 ≥6
Earth cable
（
mm
2
）
≥4 ≥6
Table 3 Switchboard parameter requirements table
（
1
）
Power cable connection
The connection must be made by a licensed electrician using cables and plugs that comply with local and national electrical
standards.
（
2
）
Earth cable connection
Use a wire to connect the grounding screw on the backplane of the power supply to the ground. The cross-sectional area of
the wire must meet the requirements of Table 3. The grounding method is implemented in accordance with relevant
national standards.