990-5909A-001

Connect the Power Cables in a 100-150 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 the 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 input cables, the bypass cables and the load cables through the top of the maintenance bypass cabinet and connect to the PE busbar, the input busbars, the bypass busbars, and the load busbars.
  3. Route the DC cables through the top of the maintenance bypass cabinet and connect to the PE busbar and the DC busbars (DC+, DC-).
  4. Connect the provided UPS DC cables to the DC busbars (DC+, DC-) and route the cables out through the left side of the maintenance bypass cabinet. Fasten the cables to the beam with cable ties.
  5. Only for dual mains system: Connect the provided UPS input cables to the input busbars and route the cables out through the left side of the maintenance bypass cabinet. Fasten the cables to the beam with cable ties.

    Left Side View of the Maintenance Bypass Cabinet

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