Electrical Level 1 Raceways and Fittings 26108 17

Session 8: Selecting and Installing Cable Trays; Handling and Storing Raceways and Fittings 26108

Objectives When you have completed this session, you should be able to do the

4. 0. 0– 4. 1. 0 Cable Trays • Cable trays provide open access

4. 2. 0– 4. 2. 1 Cable Tray Supports • Cable trays are typically

4. 2. 2 Trapeze Mounting and Center Hung Support • Trapeze mounting is similar

4. 2. 3– 5. 2. 0 Wall Mounting; Pipe Rack Mounting; Storing Raceways; Handling

Wrap Up 3 -2 -1 3 – Write 3 important things learned during class

Next Session… REVIEW AND TESTING Complete the Section Review for 4. 0. 0 and

Slides: 9

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Electrical Level 1 Raceways and Fittings 26108 -17

Session 8: Selecting and Installing Cable Trays; Handling and Storing Raceways and Fittings 26108 -17

Objectives When you have completed this session, you should be able to do the following: 4. Select and install cable trays. a. Identify cable tray types and fittings. b. Install cable tray supports. 5. Select and install cable trays. a. Handle raceways. b. Store raceways. Raceways and Fittings 26108 -17

4. 0. 0– 4. 1. 0 Cable Trays • Cable trays provide open access in applications with frequent cable changes. • A variety of fittings are available to provide changes in tray direction and/or dimension. Raceways and Fittings 26108 -17

4. 2. 0– 4. 2. 1 Cable Tray Supports • Cable trays are typically supported in one of five ways: direct rod suspension, trapeze mounting, center hung, wall mounting, and pipe rack mounting. • Direct rod suspension (shown here) uses threaded rod and hanger clamps. Raceways and Fittings 26108 -17

4. 2. 2 Trapeze Mounting and Center Hung Support • Trapeze mounting is similar to direct rod suspension but uses a steel channel or strut similar to a trapeze. • A center-hung cable tray uses a center rod and allows the cable to be easily dropped in or pulled out. Raceways and Fittings 26108 -17

4. 2. 3– 5. 2. 0 Wall Mounting; Pipe Rack Mounting; Storing Raceways; Handling Raceways • Wall mounting uses structural supports mounted directly to the wall. It is typically found in tunnels and other underground locations with long cable runs between components. • Pipe racks are often used to connect equipment outdoors in industrial facilities. • Raceway components must be stored and handled carefully to prevent damage. Raceways and Fittings 26108 -17

Wrap Up 3 -2 -1 3 – Write 3 important things learned during class 2 – Write 2 questions you have about the material 1 – Write 1 thought you had about the material Raceways and Fittings 26108 -17

Next Session… REVIEW AND TESTING Complete the Section Review for 4. 0. 0 and 5. 0. 0. Review the complete module to prepare for the Module Exam. Complete the Module Review as a study aid. Raceways and Fittings 26108 -17