Maintenance; Periodic Maintenance; Extraordinary Maintenance - SMA STRING-COMBINER DC-CMB-U10-16 Manual De Instalación

8

Maintenance

8 Maintenance

8.1 Periodic Maintenance

It is recommended to periodically inspect the panel and check the following points:
•
There are no evident signs of rust or corrosion which may impair functioning and safety.
(Yearly - Visual inspection)
•
There are no water infiltrations and excessive dust infiltration.
(Yearly - Visual inspection)
•
The mass grounding and drains are efficient.
(Yearly - Visual inspection)
•
There is insulation between the electrical circuits and masses.
(5 Year - Insulation test)
•
All the DC and AC connections are correctly tightened.
(Yearly - Dynamometric torque tool)
•
There are no burn marks on the terminals.
(Yearly - Visual inspection)
•
The door panel of the enclosure is firmly closed at the end of all the checks and after any maintenance.
(Yearly - Visual inspection)

8.2 Extraordinary Maintenance

If damaged components need to be replaced (for example, fuses, SPD, etc.) only use materials identical to those originally
supplied. A list of these materials is available in the wiring Diagram. If in doubt, contact the manufacturer.
If the electrical connections are damaged due to mechanical or electrical causes or due to rodents, immediately
disconnect the system or at least the damaged part. After verifying that no failures were caused to the equipment, proceed
with the replacement of the wires using similar materials.
All the maintenance operations must be performed by taking into account all safety instructions, checking beforehand
that the components are not powered.
30 DC-CMB-IA-U10-xx-en
SMA Solar Technology AG
Installation Manual