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16
INSTALLATION
ELECTRICAL REQUIREMENTS
Cable type: Three-phase, ve-wire (TN-C-S/TN-S) conrming the need for shielding as required by local laws
or norms
If there is a shield, both ends of the shield are connected to the PE secure ground.
Cable diameter requirements are determined by the contractor or electrical engineer, based on power,
distance and industry standards, or the following recommendations:
ZR-YJV-multi-core-sheath power cable.
The voltage level is 450/750V or higher.
A temperature of at least 90°C should be achieved.
PE Safety ground wire requires the same size model as the N wire, or uses the following recommended
requirements:
When the phase line is greater than 35 mm2, the ground line should be no less than half of the
phase line section.
When the phase line is greater than 16 mm2 and less than or equal to 35mm2, the ground line
should be consistent with the phase section.
The section of the ground line must not be less than 16 mm2.
The recommended power distribution input wire diameter of the charger should not be less than the following
recommended values and should have a separate circuit breaker and leakage (the following table is at 25℃
environment, YJV22 (armoured) cable in the soil directly applying ow as a reference, according to the
actual cable material and laying method to determine the specic wire diameter).
Charger power(kW) 7x2 7+22 7+43 22x2 22+43 43x2
Input voltage(V) 230V 400V
Input current(A) 32+32 32+32 32+64 32+32 32+64 64x2
Recommended line
diameter (mm2)
10 10 25 10 25 35
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