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WSTECH APS Series - Grounding Procedure

WSTECH APS Series
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Original Operating Instructions
APS Series Outdoor Hybrid Inverter
Installation
APS-Series 120 Operating Instructions v320 EN
Page 96 of 213
4.6.2 Grounding
DANGER!
Life hazard due to electric shock!
The product must be grounded at the earthing screw to establish a
potential equalization.
Provide earth connection before connecting to the
AC/DC power.
Fasten cable lugs properly with maximum contact surface.
Required material (not included in scope of delivery):
3 x M12x40 mm hexagon screws
6 x 13 mm washers
3 x 12.2 mm spring lock washers
3 x M12 hexagon nuts
1 x Connection cable
1 x Protective conductor
Procedure:
1. Connect protective conductor at APS carrier.
2. Tighten the screw with a torque of 75 Nm (Figure 79).
3. If MV skid is provided, connect the carriers with the connection cable.
4. Tighten the screws with a torque of 75 Nm (Figure 80).

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