3.5.10 DANGER
Power Supply Cable - Installation

If the hoist is hook mounted to a fixed support ensure that the Power Supply Cable is properly installed and supported between the hoist and the electrical power supply.

If the hoist is installed on a manual trolley, then the Power Supply Cable must be installed along the beam that the trolley runs on. For curved beams a special cable suspension system will be needed, and this instruction does not apply. For straight beams install the Power Supply Cable as follows:

ƒRefer to Figure 3-7.

ƒInstall the Cable Hangers on to the Power Supply Cable spacing them every 5 feet.

ƒInstall a Guide Wire system parallel to the Bridge Beam. Pass the Guide Wire through the Cable Hangers and the Wire Guide.

ƒMake sure the Guide Wire is properly tensioned and the Power Supply Cable is not twisted or kinked.

3.5.8Connection to Electrical Power Source - The red, blue, and black wires of the Power Supply Cable should be connected to an Electric Power Disconnect Switch or Circuit Breaker. This connection should be made so that the hoist is phased properly. Refer to Section 3.6.11 for instructions on how to check for correct power supply phase connection.

3.5.9Fuse/Breaker Capacity -The hoist's power supply should be equipped with overcurrent protection such as fuses, which should be selected for 110% to 120% of total listed full load amperage, and should be dual element time-delay fuses. Refer to the motor nameplate(s) for the full load amperage draw.

Grounding - An improper or insufficient ground connection creates an electrical shock hazard when touching any part of the hoist or trolley. In the Power Supply Cable the ground wire will be either Green with Yellow stripe or solid Green. It should always be connected to a suitable ground connection. Do not paint the trolley wheel running surfaces of the beam as this can affect grounding.

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