Requirements For Cable Routing Between Mv Transformer And Inverter - SMA SUNNY CENTRAL 500CP-JP Installation Manual

9 Appendix
☐ The inclination of the foundation must be between 0.5% and 1%. This will allow rain water to drain from
underneath the inverter.
☐ The foundation must have at least the following dimensions:
Position
Width
Depth
☐ Cable feedthroughs must be provided in the foundation.
☐ For convenient operation and trouble-free maintenance, it is recommended to extend the inverter foundation on all
sides or to provide a level, reinforced surface around the inverter. The foundation must have the following
minimum dimensions:
Position
Width
Depth
☐ If the ground is to be paved up to the inverter foundation, a gap must be maintained between the foundation and
the paved area. The gap width is: 30 mm.
Requirements for the cable arrangement:
☐ Openings for the cables must be located in the foundation underneath the interface cabinet.
☐ Empty conduits for the cables must be laid under the foundation.
☐ Cables for communication, control and supply voltage must be separated from AC and DC cables.
☐ There must be sufficient space available to lay the cables properly.
Stage at which cables are laid
The stage at which the cables are laid must be determined individually for each system.
9.1.4

Requirements for Cable Routing between MV Transformer and Inverter

Risk of fire due to overheating of cables if different cable lengths are used
Cables of differing lengths may cause the cables to overheat and catch fire. This can result in death or serious
injury.
• All line conductors from the inverter to the MV transformer must be of the same length.
• The cable length between the connection points must not exceed a maximum length. Maximum cable length:
15 m.
64 SCCP-JP-B1-IA-en-21
Designation
2600 mm
1000 mm
Designation
3400 mm
1800 mm
WARNING
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