Il. PREPARING SHOP FOR OPERATION
a. External Grounding of Shop.
1. Remove ground rod assembly from shop.
2. Install external ground IAW TM 10-5411-201-14 and TC 11-6.
HIGH VOLTAGE exists in the electrical system of the shop. All
electrical inspections, repairs or replacement will be performed with
the power off and only by qualified electricians. Serious shock hazards
exist which could result in injury or death to personnel.
Shop utilizes 3-PHASE Electric Current. Proper phasing must be
achieved when wiring the Power Distribution Panel to power source.
Improper phasing can result in damage to the ECUs and other electri-
cally operated equipment.
b. Connecting Power Distribution Panel to Power Source. A qualified electrician will connect power distribu-
tion panel power cable to power source IAW TM 5-6150-226-13&P, and set power distribution panel main circuit
breaker to ON and individual breakers OFF.
The Welding Shop utilizes TWO TYPES of power supply cables. One
cable is a universal 60 AMP, 100-foot cable used to provide normal
(main) operating power for shelter. The other is a 100 AMP, 50-foot
cable used expressly to provide power to electric welder.
c. Connecting Shelter Main Power Cable. Two 100-foot cables provided may be connected or used individually.
1. Remove main power cable(s) (1) from shop.