Generac Power Systems XG4000 Owner's Manual page 9

2.4.1 SYSTEM GROUND
The generator has a system ground that connects the generator
frame components to the ground terminals on the AC output
receptacles. The system ground is bonded to the AC neutral wire
in the generator control panel via a jumper wire.
2.4.1.1 Special Requirements
There may be Federal or State Occupational Safety and Health
Administration (OSHA) regulations, local codes, or ordinances that
apply to the intended use of the generator.
Please consult a qualified electrician, electrical inspector, or the
local agency having jurisdiction:
• In some areas, generators are required to be registered with
local utility companies.
• If the generator is used at a construction site, there may be
additional regulations which must be observed.
2.4.1.2 Connecting to a Building's Electrical System
Connections for standby power to a building's electrical system
must be made by a qualified electrician. The connection must
isolate the generator power from utility power or other alternative
power sources and must comply with all related laws and codes.
2.4.2 GROUNDING THE GENERATOR
The National Electrical Code requires that the
frame and external electrically conductive
parts of this generator be properly connected
to an approved earth ground (Figure 6).
Local electrical codes may also require proper grounding of the
unit. For that purpose, connecting a No. 10 AWG (American Wire
Gauge) stranded copper wire to the grounding lug and to an
earth-driven copper or brass grounding rod (electrode) provides
adequate protection against electrical shock. However, local codes
may vary widely. Consult with a local electrician for grounding
requirements in the area.
Section 2 – Operation
Portable Generator System
Figure 6 - Grounding the Generator
CONNECT GENERATOR GROUND HERE
Proper grounding of the generator will help
prevent electrical shock in the event of a
ground fault condition in the generator or in
connected electrical devices. Proper
grounding also helps dissipate static
electricity, which often builds up in
ungrounded devices.
2.4.3 NEUTRAL TO FRAME GROUNDING
If service work is performed on the alternator, DO NOT discard
the white jumper wires from the terminal block to the alternator
ground, located on the rear bearing carrier. Alway make sure the
wires are properly connected before using the generator after
alternator service work is done (Figure 7).
Figure 7 - Neutral to Frame Ground Wires
Failure to reconnect these wires may create a
potential shock hazard when the generator is
running!
DO NOT DISCARD
THESE WIRES!
NEUTRAL TO
FRAME GROUND
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