Outside vertical – Elbow changes direction downward from the horizontal plane.Inside vertical – Elbow changes direction upward from the horizontal plane.A cable tray fitting that changes direction to a different plane. A cable tray bottom having openings sufficient for the passage of air and utilizing 60 percent or less of the plan area of the surface to support cables. A length of cable tray that has no change in direction or size. Left-hand – A reducer, when viewed from the large end, has a straight side on the left.Right-hand – A reducer, when viewed from the large end, has a straight side on the right.Straight – A reducer with two symmetrical offset sides.A cable tray fitting that is suitable for joining cable trays of different widths in the same plane. An assembly of cable tray straight sections, fittings, and accessories that forms a rigid structural system to support cables. A cable tray fitting that is suitable for joining cable trays in three directions at 90-degree intervals in the same plane.Ĭable Tray System. A cable tray fitting that changes the direction in the same plane. A cable tray fitting that is suitable for joining cable trays in four directions at 90-degree intervals in the same plane. A prefabricated metal structure greater than four inches in width consisting of a ventilated bottom within integral or separate longitudinal side rails. Trof Expansion Connector CE Trof 90° Connector CA Trof Vertical Adjustable Connector CV. The cable trays must not be clamped to each support so firmly that the cable tray cannot expand without distortion. A cable tray support should be located within 2 feet of each side of the expansion joint splice plates position. A prefabricated metal structure consisting of a bottom with no openings within integral or separate longitudinal side rails. There are expansion joint splice plates and bonding jumpers available from cable tray manufacturers.
A prefabricated metal structure consisting of two longitudinal side rails connected by individual transverse members. A prefabricated metal structure consisting of a one-piece ventilated bottom or solid bottom channel section, or both, not exceeding six inches in width.
The basic types of cable tray supports are:Ĭhannel Cable Tray. A device that provides adequate means for supporting cable tray sections or fittings, or both. A device that is used to change the direction or size of a cable tray system.Ĭable Tray Support. The basic types of connectors are:Ĭable Tray Fitting. A device that joins cable tray straight sections or fittings, or both. Devices that are used to supplement the function of straight sections and fittings, and include such items as dropouts, covers, conduit adapters, hold-down devices, and dividers.Ĭable Tray Connector.
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