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5.5 Grounding Connection
WARNING:
The grounding connections must comply with local standards and regulations.
5.5.1 Cabinet Internal Equipment Grounding
The grounding for all major equipment within each cabinet is pre-installed before shipment. All the major components in the
same cabinet must be connected together through the bonding busbar inside the cabinet. All cabinets must be grounded
together onsite by:
Checking the continuity between the grounding bar and the grounding point of each equipment inside the system.
The shielding layer of each cable for external connection in the cabinet shall also be grounded at a suitable place in the
cabinet.
5.5.2 Cabinet Chassis Grounding
NOTICE:
For the correct grounding resistance threshold, refer to the local codes and standards.
WARNING:
The local codes and standards must be followed when grounding the unit. CPS is not responsible for any
equipment damage and/or personnel injury caused by violation of any relevant safety requirements,
standards, or regulations.
To ground the cabinet chassis:
1. Install the grounding rod close to the cabinet (DC block or PCS cabinet) on the installation surface.
2. Use the copper wire to connect the ground rod to the ground bar inside the PCS cabinet or battery cabinet.
3. Wire the ground cable (provided with the battery cabinet) between the ground bars inside the PCS cabinet and battery
cabinet through the underground conduit.
For the 250 kW / 559.1 kWh configuration, which includes one PCS cabinet and two battery cabinets:
1. Install two grounding rods, each close to one of the battery cabinets.
2. Use the copper wire to connect the ground rod to the ground bar inside the battery cabinet.
3. Wire two ground cables (provided with the battery cabinet) between the ground bars inside the PCS cabinet and battery
cabinets through the underground conduit (one cable per battery cabinet).
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