2 Safety
SMA Solar Technology AG
Maintenance Manual
SCCP-JP-B1-WA-en-22
10
DANGER
Danger to life from electric shock even if the inverter is disconnected on the AC and DC sides
The precharge unit of the order option "Q at Night" will carry live voltage even if the AC contactor and the DC
switchgear are open. Touching live components results in death or serious injury due to electric shock.
• Do not touch any live components.
• Switch off the inverter.
• After switching off the inverter, wait at least 15 minutes before opening it to allow the capacitors to discharge
completely.
• Ensure that no voltage is present.
• Do not remove protective covers.
• Observe the warning messages.
• Wear suitable personal protective equipment for all work on the product.
WARNING
Danger to life from electric shock when entering the PV field
Ground-fault monitoring does not provide protection from personal injury. PV modules which are grounded with
ground-fault monitoring discharge voltage to ground. Entering the PV field can result in lethal electric shocks.
• Ensure that the insulation resistance of the PV field exceeds the minimum value. The minimum value of the
insulation resistance is: 1 kΩ.
• Before entering the PV field, switch the PV modules to insulated operation.
• Configure the PV power plant as a closed electrical operating area.
WARNING
Danger to life due to electric arc if there are tools inside the product
When reconnecting or during operation, an electric arc can occur if there are tools in the product creating a
conductive connection between the live components. This can result in death or serious injury.
• Before commissioning or reconnection, verify that no tools are inside the product.
WARNING
Danger to life from electric shock if the product is not locked
If the product is not locked, unauthorized persons will have access to live components carrying lethal voltages.
Touching live components can result in death or serious injury due to electric shock.
• Always close and lock the product.
• Remove the keys.
• Store the keys in a safe place.
• Ensure that no unauthorized persons have access to the closed electrical operating area.
Summary of Contents for Sunny Central 1000CP-JP
Page 68: ...www SMA Solar com...
