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7.3.5
Power cable wiring
Protective grounding
Before the power cable is connected, the instrument shell should be grounded to
ensure the safety of operators. The grounding wire should use 600V insulated wire,
the cross-sectional area of the wire should be greater than 2mm2, and the grounding
resistance should be less than 10 Ω.
Connection
warning
When connecting the power cable, the following points must be observed:
● check whether the power supply meets the instrument requirements;
● ensure that the power supply is disconnected before wiring;
● the power supply shall be connected to the instrument through an external fuse or
circuit breaker (2A).
