Requirements For The Support Surface; Requirements For The Foundation And Cable Routing - SMA SUNNY CENTRAL 500CP-JP Installation Manual

SMA Solar Technology AG
9.1.2

Requirements for the Support Surface

If you are using a base from SMA Solar Technology AG, you must prepare the mounting location with a subgrade.
The excavation pit must have the following properties:
☐ The pit must be excavated to the respective height of the base.
☐ A work area around the station must be available. The work area is at least: 500 mm.
☐ The corners of the excavation pit must be clearly marked.
☐ It must be possible to dump excavated material away from access routes so that the truck is not hindered during
transport.
The subgrade must have the following properties:
☐ The subgrade must be made of stone-free, compactable material without sharp edges, e.g. a horizontal lean
concrete plate.
☐ The compression ratio of the subgrade must be 98%.
☐ The soil pressure must be 150 kN/m
☐ The unevenness must be less than 0.25% (as per DIN 18202: table 3, line 4).
☐ The subgrade must have the following minimum dimensions:
Position
Width
Depth
Height
☐ The preparation of the subgrade must ensure that the base sits
about 150 mm above ground level after installation. This will
ensure that the inverter is protected against high water levels after
heavy rain or a snow melt.
☐ If the ground is to be paved up to the inverter, a gap must be maintained between the inverter and the paved
area. The gap width is: 30 mm.
9.1.3

Requirements for the Foundation and Cable Routing

If you do not use a base from SMA Solar Technology AG, you can also position the inverter on a foundation.
The foundation must have the following properties:
☐ The foundation must be suitable for the weight of the inverter. The inverter weighs: 1800 kg.
☐ The unevenness must be less than 0.25% (as per DIN 18202: table 3, line 4).
Installation Manual
2
.
Designation
2600 mm
1000 mm + double foundation extension (0 mm to 300 mm)
150 mm
9 Appendix
SCCP-JP-B1-IA-en-21 63