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  • Generally used for minimal heat generating electrical or telecommunication applications with short to intermediate support spans 5 to 12 feet.
  • The main reason for selecting solid bottom cable tray (with covers) is the concern of EMI/ RFI shielding protection for very sensitive circuits. A solid bottom steel cable tray with steel covers provides a good degree of shielding if there are no breaks or holes in the completed installation.
  • The solid bottom cable tray system has a disadvantage in that moisture can build up in the cable trays. This can be controlled by drilling 1/4 inch drain holes in the bottom of the cable tray at three foot intervals (at the middle and very near the sides) if the cable tray is not being used for EMI/RFI shielding.
  • Some engineers and designers specify solid bottom cable trays (often with covers) in the belief that all electrical circuits have to be totally enclosed by metal. The cable trays are just supporting cables that are designed for such installations. Cable failures in cable tray runs rarely happen. Cable failures due to cable support problems in cable trays are nonexistent.
Characteristics:
  • Non-ventilated continuous support for delicate cables with added cable protection available in metallic and fiberglass
  • Solid bottom metallic with solid metal covers for non-plenum rated cable in environmental areas
  • Standard widths of 6, 12, 18, 24, 30 & 36 inches
  • Standard depths of 3, 4, 5 & 6 inches
  • Standard lengths of 10, 12, 20 & 24 feet.