SMA SUNNY HIGHPOWER PEAK3 SHP FLEX-US-21 Instrucciones Breves página 6

2 Safety
Danger to life due to electric shock when live components or DC cables are
touched
When exposed to light, 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 ensure 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 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.
• Ensure that all devices in the same network are integrated in the existing overvoltage
protection.
• When laying the network cable outdoors, ensure that there is suitable surge protection at
the network cable transition from the product outdoors to the network inside the building.
• The Ethernet interface of the product is classified as "TNV-1" and offers protection against
overvoltages of up to 1.5 kV.
Danger to life due to fire when failing to observe torque specifications on live
bolted connections
Failure to follow the specified torques reduces the ampacity of live bolted connections and the
contact resistances increase. This can cause components to overheat and catch fire. Death or
lethal injuries can result.
• Ensure that live bolted connections are always tightened with the exact torque specified in
this document.
• Only use suitable tools when working on the device.
• Avoid repeated tightening of live bolted connections as this may result in inadmissibly high
torques.
6 SHPxxx-US-21-IS-de-10
DANGER
DANGER
WARNING
SMA Solar Technology AG
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