Grounding the Generator
Grounding the Generator
WARNING
Generator must be grounded to prevent electrical shock from faulty appliances.
•Before using generator, consult a qualified electrician, electrical inspector, or local agency having jurisdiction for local codes or ordinances that apply to the intended use of generator.
The National Electric Code (NEC) requires the generator to be connected to an earth ground. Before using the gen- erator, connect a copper wire (minimum 10 AWG) from the ground terminal (see Figure 18) to an earth ground. Con- sult a licensed electrician for proper grounding methods.
FIGURE 18: Ground Terminal
NOTE:
The generator has a floating neutral which means the ground terminal on the generator is not connected to the AC neutral wire in the generator. If using a receptacle tester, it will not show the same ground circuit condition as for a home receptacle.
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 generator. Please consult a qualified electrician, electrical inspector, or the local agency having jurisdiction.
•In some areas, generators are required to be regis- tered with local utility companies.
•If generator is used at a construction site, there may be additional regulations which must be observed.
Using Generator for Backup Power
DANGER
Improper connections of the generator to a building’s electri- cal system can be deadly.
Electrical current from generator can feedback into utility lines. Such feedback may electrocute utility company workers or others who contact utility lines during a power outage.
Electrical current can feedback into generator. When utility power is restored, generator may explode, burn, or cause fires in building's electrical system.
•Before connecting to a building’s electrical system, con- sult a qualified electrician, electrical inspector, or local agency having jurisdiction for local codes or ordinances that apply to the intended use of generator.
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