SMA SHP Serie Instrucciones Breves página 7

SMA Solar Technology AG
Danger to life due to electric shock when live components or DC cables are
touched
When exposed to sunlight, the PV modules generate high DC voltage which is present in the DC
cables. Touching live DC cables results in death or lethal injuries due to electric shock.
• Do not touch non-insulated parts or cables.
• Install external DC load-break switch (e.g., a PV junction box including a load-break switch)
between the inverter and PV array.
• Disconnect the PV array from the inverter via an external DC load-break switch (e.g. via a
PV junction including a load-break switch). Switch off and secure the DC load-break switch
against reconnection.
• Disconnect the product from voltage sources and make sure it cannot be reconnected
before working on the device.
• Wear suitable personal protective equipment for all work on the product.
Danger to life due to electric shock when touching live system components in
case of a ground fault
If a ground fault occurs, parts of the system may still be live. Touching live parts and cables
results in death or lethal injuries due to electric shock.
• Disconnect the product from voltage sources and make sure it cannot be reconnected
before working on the device.
• Touch the cables of the PV array on the insulation only.
• Do not touch any parts of the substructure or frame of the PV array.
• Do not connect PV strings with ground faults to the inverter.
Danger to life due to electric shock in case of overvoltages and if surge
protection is missing
Overvoltages (e. g. in the event of a flash of lightning) can be further conducted into the building
and to other connected devices in the same network via the network cables or other data cables
if there is no surge protection. Touching live parts and cables results in death or lethal injuries due
to electric shock.
Quick Reference Guide
DANGER
DANGER
DANGER
2 Safety
SHPxxx-20-IS-xx-10 7