D20/D200
Installation and Operations Guide
GE Energy
994-0078-2.00-7 General
4
Full
Product Support and Safety, continued
!
Hazardous
Voltages
Hazardous Voltages can cause shock, burns or death.
• Due to the common bus architecture of D20 I/O peripherals, an energized
condition may exist due to induced voltage or unrelated voltage backfeed even
though specific parts of the circuit have been de-energized and presumed to be
safe. Qualified personnel shall confirm the circuit is de-energized before
commissioning or servicing the equipment
• Disconnect and lockout all power sources before servicing and removing
components.
• Short all current transformer primaries before servicing.
• The D20/D200 is designed to allow some components to be hot-swapped: they
can be safely removed and re-installed without powering down the unit:
− Peripherals
− Connectors under plastic covers carry hazardous voltages. Removal of plastic
cover will expose hazardous voltages.
Warning
Symbols
!
Caution (refer to accompanying documentation)
Caution Risk of electric shock
Earth/Ground Terminal
Protective Ground Terminal
Power Supply Off (Stand-by Mode)
Power Supply On
Direct Current
Alternating Current
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