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2.2.3 PV Arrays Hazards
DC high voltage! Electric shock hazards!
When exposed to sunlight, PV array will produce voltage, which is very high in
large-scale power stations.
Death from burning and electric shock due to touching the PV array
During installation, maintenance and troubleshooting of the device, ensure:
•
Station is disconnected from the PV array.
•
Necessary warning signs are in place to prevent accidental reconnection.Necessary
warning signs are in place to prevent accidental reconnection.
2.2.4 Ground Fault Protection
If a ground fault occurs in the PV system, some parts that are supposedly voltage-
free may carry lethal voltage. Accidental touch may cause serious damage. Make
sure there is no system ground fault before operation and take proper protection
measures.
2.2.5 Live Line Measurement
High voltages are present inside the device. Death resulting from burning and
electric shock upon touching the live components of the MV Station. During live
line measurement,
•
wear suitable protective equipment, for example dielectric gloves, and
•
accompany by other persons.
2.2.6 Measuring Instrument
Instrument for measurement of the electrical parameters should meet the requirements
listed below:
•
Instrument for measurement of the electrical parameters should be high quality
instrument with sufficient measuring range.
•
Make sure the connection and use of the instrument are correct to avoid arc
and other dangerous situations.
•
Use suitable protective equipment, for example dielectric gloves if live line
measurement is required.
System Manual
