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Raceways and Cable Trays in Electrical Wiring

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Raceways and Cable Trays in Electrical Wiring

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Questions and Answers

What is the primary function of a raceway in a building?

To manage telecommunication cables

To distribute high voltage power lines

To support electrical conduits

To provide a physical pathway for electrical wires (correct)

What is the main advantage of using cable trays in commercial and industrial construction?

They are aesthetically pleasing

They provide a secure way to manage cables

They are only used for high voltage power lines

They offer quick, economical, and flexible solutions (correct)

What is the typical consideration for selecting a type of cable tray?

The type of material used to make the tray

The color of the tray

The size and weight of the cables (correct)

The brand of the tray

Which type of wiring is NOT supported by cable trays?

Pneumatic wiring Signup and view all the answers

What is the purpose of a ladder cable tray?

To connect two side rails with rungs Signup and view all the answers

What is the primary benefit of using cable trays over open wiring or electrical conduit systems?

They provide a more organized and protected way to manage cables Signup and view all the answers

What makes ladder cable trays effective in terms of cable accessibility?

The rungs of the ladder which provide easy accessibility Signup and view all the answers

Why are solid-bottom cable trays preferred for fiber-optic cable installations?

Because they are concerned for electromagnetic/radiofrequency interference protection Signup and view all the answers

What type of cable tray is made of stainless-steel wires by welding wires together?

Wire mesh cable tray Signup and view all the answers

What is the primary advantage of aluminum as a material for cable trays?

It has excellent strength-to-weight ratio Signup and view all the answers

What is the most widely used coating for cable trays?

Galvanized coatings Signup and view all the answers

What is the primary advantage of galvanized coatings for cable trays?

They are self-healing if an area becomes unprotected Signup and view all the answers