INSTALLATION | ||
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Keeping these contributing factors in mind, installing equipment per the following instructions should mini- mize problems.
1.Keep the welder power supply lines as short as possible and enclose as much of them as possible in rigid metallic conduit or equivalent shielding for a distance of 50ft. (15.2m). Both ends of the conduit should be connected to a driven ground and the entire length should be continuous.
2.Keep the work and electrode leads as short as pos- sible and as close together as possible. Lengths should not exceed 25ft. (7.6m). Tape the leads together when practical.
3.Be sure the torch and work cable rubber coverings are free of cuts and cracks that allow high frequen- cy leakage. Cables with high natural rubber con- tent, such as Lincoln
4.Keep the torch in good repair and all connections tight to reduce high frequency leakage.
5.The work terminal must be connected to a ground within ten feet of the welder, using one of the follow- ing methods.
a)A metal underground water pipe in direct con- tact with the earth for ten feet or more.
b)A 3/4” (19mm) galvanized pipe or a 5/8” (16mm) solid galvanized iron, steel or copper rod driven at least eight feet into the ground.
The ground should be securely made and the grounding cable should be as short as possible using cable of the same size as the work cable, or larger. Grounding to the building frame electrical conduit or a long pipe system can result in
6.Keep all panels securely in place.
7.All electrical conductors within 50 ft (15.2m) of the welder should be enclosed in grounded, rigid metal- lic conduit or equivalent shielding. Flexible metallic conduit is generally not suitable.
8.When the welder is enclosed in a metal building, several earth driven electrical grounds connected (as in 5 (b) above) around the periphery of the building are recommended.
Failure to observe these recommended installation procedures can cause radio or TV interference prob- lems.
INPUT CONNECTIONS
WARNING
ELECTRIC SHOCK can kill.
•Have a qualified electrician install and service this equipment.
•Disconnect input power by removing plug from receptacle before working inside
5 minutes minimum to allow the power capacitors to discharge before working inside this equip- ment.
• Do not touch electrically hot parts.
GROUND CONNECTION
The frame of the welder must be grounded. A ground terminal marked with the symbol is located on the under panel for this purpose. See your local and national electrical codes for proper grounding methods.
CAUTION
The grounding is supplied in the input cord, it is important that the Supply Receptacle Ground con- nection is connected.
WARNING
This installation should be performed by a quali- fied electrician to ensure correct connections of the leads to the plug spades.
•The electrical system must be made by skilled technicians with the specific professional and technical qualifications and in compliance with the regulations in force in the country where the equipment is installed.
•The welding power source supply cable is pro- vided with a green or yellow/green wire that must ALWAYS be earthed. This green or yellow/green wire must NEVER be used with other voltage conductors.
•lnstall only plugs that are corresponding to safe- ty regulations.
