SMA SSM-U-1615 - Manual (Page 46)

8 Disconnecting and Reconnecting
8.1 Safety When Disconnecting and Reconnecting Voltage
Sources
Danger to life from electric shock due to live voltage
High voltages are present in the live components of the DC subdistribution. Touching live
components results in death or serious injury due to electric shock.
• Wear suitable personal protective equipment for all work on the product.
• Do not touch any live components.
• Observe all warning messages on the product and in the documentation.
• Observe all safety information issued by the module manufacturer.
• Disconnect the DC subdistribution from voltage sources (see Section 8.2, page 47)
Danger to life from electric shock if the DC load-break switch is damaged
Switching the DC load-break switch at temperatures below the specified threshold may damage
the DC load-break switch. The threshold is: ‒25°C. In this case, reliable disconnection can no
longer be guaranteed.
If the DC load-break switch is switched in spite of visible damage, again the reliable
disconnection function cannot be guaranteed.
High voltages are present in components that are not properly disconnected. Touching live
components can result in death or serious injury due to electric shock.
• Do not switch the DC load-break switch at temperatures below the specified threshold. The
threshold is: ‒25°C.
• Do not switch the DC load-break switch if it is visibly damaged.
Risk of burns due to hot inline fuse connectors
During operation, the temperature of the inline fuse connectors can reach up to 90°C. Touching
the inline fuse connectors can result in burns.
• Only touch the inline fuse connectors wearing suitable personal protective equipment.
• Position hot, removed inline fuse connectors in such a way that they cannot be touched
inadvertently.
• Mount the inline fuse connectors in such a way that air can circulate around them. Cooling
the inline fuse connectors by the ambient air is absolutely necessary.
• Mount the inline fuse connectors in such a way that they cannot be touched inadvertently.
Ensure that air circulation around the inline fuse connectors is not prevented.
8 Disconnecting and Reconnecting SMA Solar Technology AG
Operating Manual SSMUXX15-BE-en-10 46