17
GENERATOR USE
CONNECTIONS TO A BUILDING ELECTRICAL SYSTEM
Improper connections to a building electrical system can allow
electrical current from the generator to backfeed into the utility lines.
Such backfeed may electroc ute utility company workers or others
who contact the lines during a power outage, and the generator may
explode, burn, or cause fires when utility power is restored. Consult
the utility company or a qualified electrician.
GROUND SYSTEM
Connections for standby power to a building electrical system must be
made by a qualified electrician. The connection must isolate the
generator power from utility power, and must comply with all
applicable laws and electrical codes.
USR portable generators have a system ground that connects
generator frame components to the ground terminals in the AC output
receptacles. The system ground is not connected to the AC neutral
wire. If the generator is tested by a receptacle tester, it will not show
the same ground circuit condition as for a home receptacle.
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