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Electrical Installation Inspection
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Complete and firm grounding of inverter.
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Grid voltage matching the rated input voltage of inverter.
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Correct phase sequence of grid connection, and tightening torque meeting requirements.
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Correct connection of DC input anode and cathode, and tightening torque meeting
requirements.
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Correct connection of communication lines, and maintaining a certain distance to other
cables.
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Correct and legible mark of cable No.
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Complete and reliable insulation shields, and legible and firm label of danger warnings.
Other Inspections
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All useless conductive parts tied with insulating ribbon.
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No tools, spare parts, conductive dust generated from drilling or other matters left inside
the cabinet.
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No condensed humidity or icing inside the cabinet.
Table 4-6 Installation Inspection List
5 Pilot operation
The chapter will introduce the procedure of pilot operation, including checking PV array voltage,
input and output connecting, other preparation working.
5.1 Relevant requirements
Before pilot operation, the installation conditions of the equipment shall be examined thoroughly,
in particular whether voltages at DC and AC ends are consistent with inverter's requirements, and
whether the polarity etc. are correct. Inspect if the system connection meets requirements in
relevant standards or codes and if the system is grounded well.
CAUTION!
Before pilot operation, all switches at AC side and DC side shall ensure to be cut off.