Commissioning; Safety During Commissioning - SMA MEDIUM VOLTAGE POWER STATION 500SC-JP System Manual

6 Commissioning

6 Commissioning
6.1

Safety during Commissioning

Danger to life from electric shock due to live voltage
High voltages are present in the live components of the product. 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 of the module manufacturer.
• After switching off the inverter, wait at least 15 minutes before opening it to allow the capacitors to discharge
completely (see Section 7.4, page 100).
Danger to life from electric shock due to ground fault
If a ground fault has occurred, parts of the PV power plant that are supposedly grounded may in fact be live.
Touching incorrectly grounded parts of the PV power plant results in death or serious injuries from electric shock.
• Before working on the PV power plant, ensure that no ground fault is present.
• Wear suitable personal protective equipment for all work on the device.
Danger to life due to arc fault caused by fault in the medium-voltage switchgear
If there is a fault in the medium-voltage switchgear, arc faults may occur during operation of the product which can
result in death or serious injuries. If arc faults occur in the medium-voltage switchgear, the pressure evacuates under
the compartment of the medium-voltage switchgear.
• Only perform work on the medium-voltage switchgear when it is in a voltage-free state.
• Only perform switching operations on the medium-voltage switchgear from the service platform.
• Do not touch or access the roof of the medium-voltage switchgear when medium voltage is connected.
• When switching operations are performed, all persons that are not on the service platform have to keep a safe
distance from the product.
• All work and switching operations on the medium-voltage switchgear must only be performed by qualified
persons wearing adequate personal protective equipment.
Damage to the devices due to sand, dust or moisture penetration
Sand, dust or moisture penetration can damage the devices of the MV Power Station or impair their functionality.
• Do not open any devices during a sandstorm, precipitation or when humidity exceeds 95%.
• Only perform maintenance work when the environment is dry and free of dust.
• If the installation, maintenance or commissioning process is interrupted, mount all enclosure parts and close all
doors.
72 MVPS22JP-SH-en-11
SMA Solar Technology AG
System Manual