990-5909A-001

Connect the Power Cables in a 10-80 kW Top Cable Entry System

  1. The power cables must be restrained with 3/8 nylon rope:
    1. Tie the power cables to the beams with rope as illustrated. Make sure that the rope holds the cables tightly in place. Note that L2 is routed under the beam and L1 and L3 is routed over the beam in front of the busbars.
    2. Tie the power cables together with rope as illustrated halfway between the two beams. See Restrain the Cables for restrain method.

    Left Side View of the Maintenance Bypass Cabinet – Single Mains

    Left Side View of the Maintenance Bypass Cabinet – Dual Mains

  2. Perform one of the following:
    • Only for single mains system: Route the input cables and load cables through the top of the maintenance bypass cabinet and connect to the PE busbar, the input busbars, and the load busbars.
    • Only for dual mains system: Route the bypass cables and load cables through the top of the maintenance bypass cabinet and connect to the PE busbar, bypass busbars, and the load busbars.
  3. Only for dual mains system:
    • For top cable entry without conduit box: Route the input cables through the top of the maintenance bypass cabinet and to the bottom of the maintenance bypass cabinet. When the UPS has been installed, route the input cables through the left side into the UPS. Follow the UPS installation manual to connect the input cables.
    • For top cable entry with conduit box: When the UPS has been installed, route the input cables through the conduit box of the UPS. Follow the UPS installation manual to connect the input cables.
  4. Perform one of the following:
    • For top cable entry without conduit box: Route the DC cables through the top of the maintenance bypass cabinet and to the bottom of the maintenance bypass cabinet. When the UPS has been installed, route the DC cables through the left side into the UPS. Follow the UPS installation manual to connect the DC cables.
    • For top cable entry with conduit box: When the UPS has been installed, route the DC cables through the conduit box of the UPS. Follow the UPS installation manual to connect the DC cables.
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