SMA SSM-U-1615 - Manual (Page 53)

Damage to electronic components due to electrostatic discharge
Electrostatic discharge can damage or destroy electronic components.
• Observe the ESD safety regulations when working on the product.
• Wear suitable personal protective equipment for all work on the product.
• Discharge electrostatic charge by touching grounded elements. Only then is it safe to touch
electronic components.
10.2 Maintenance Schedule and Consumables
10.2.1 Notes on Maintenance Work
Adverse ambient conditions reduce maintenance intervals
Location and ambient conditions influence the maintenance intervals. Note that cleaning and
corrosion protection may be required more frequently depending on the conditions at the
installation site.
• If the DC subdistribution is subject to adverse ambient conditions, it is recommended to
shorten the maintenance intervals.
• SMA recommends an optical inspection every six months to determine the maintenance
requirements.
Consumables and maintenance materials
Only those consumables and maintenance materials not normally included in the standard
equipment of an electrically qualified person are listed. It is taken for granted that standard
tools and materials such as torque wrenches, one-contact voltage testers and wrenches will be
available for all maintenance operations.
Spare parts
Spare parts can be identified via the reference designation and the circuit diagram. The spare-
parts list includes the article numbers of each spare part. For information on a specific article
number, contact us (see Section 15 "Contact", page 74).
10.2.2 Maintenance Work Every 24 Months
Required maintenance materials and tools:
☐ Talcum, petroleum jelly or wax for maintaining the seals
☐ Abrasive cloth
☐ Degreaser
☐ A surge arrester testing device approved by the surge arrester manufacturer
Maintenance with DC voltage present
Task See
Checking the DC load-break switch Section 10.3.1, page 54
10 Maintenance SMA Solar Technology AG
Operating Manual 53 SSMUXX15-BE-en-10