In Article " Types of Electrical Conduits ", I explained the following points:
Today, I will explain Conduit Fittings and Supports as follows.
Conduit Fittings and Supports
In the next Article, I will explain How to Verify Correct Installation of Junction Boxes. Please, keep following.
- Definition of An electrical conduit,
- Advantages of using Electrical conduits than other wiring methods,
- Disadvantages of using Electrical conduits,
- How to Verify Correct Installation of Conduit,
- Types of Conduit.
Today, I will explain Conduit Fittings and Supports as follows.
Conduit Fittings and Supports
Types of Conduit
Fittings and Supports
There are many types of conduit
fittings, made in different sizes and shapes.
The type of conduit fitting used will depend upon the particular
need. These conduit fittings can be
listed as follows:
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1-
Conduit Bodies And Covers
Figure 1. Conduit
Bodies And Covers
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2- Conduit Bends
Factory bends:
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3- Conduit
Coupling
When two lengths of conduit
connect, a coupling joins them. Figure
3 shows a rigid conduit coupling.
The coupling is threaded on the inside and made in different sizes.
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4- Conduit
Bushing
A locknut fitting (Figure 4) screws
onto conduit connecting it to an enclosure.
A bushing (Figure 4) provides protection for conductors leaving the
conduit opening.
Figure 5 shows the application of both
the locknut and the bushing. Two
locknuts connect a piece of conduit to a punched enclosure. The locknuts are
tightened on both sides to secure the conduit. The bushing screws on to the end of the
conduit and protects the wires from damage as they are pulled through the
conduit.
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5- Conduit
Union
The conduit union (Figure 6)
connects two sections of rigid conduit when neither section can physically
turn. The union is a conduit coupling
used for emergency repair work and in difficult places near corners, walls,
or ceilings. The two types shown are a
union with two female hubs (UNF) and a union with a male and female hub
(UNY).
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6- Reducing washers
Reducing washers connect
smaller diameter conduit to larger boxes and enclosure holes. Threaded reducers connect smaller conduit
to larger conduit fittings. Figure
7 shows how a threaded reducer and a reducing washer work.
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7- Conduit nipples
Figure 8. Conduit Nipple
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8- Conduit straps
Conduit straps mount against
the conduit to fasten it in place (Figure 9). Straps fasten to the wall or ceiling with
screws or bolts. Straps are support
fitting.
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9- Conduit clamps
Conduit clamps are used to
fasten conduit to fixed structures. They are considered support
fittings. See Figure 10.
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Notes for Conduit Supporting
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In the next Article, I will explain How to Verify Correct Installation of Junction Boxes. Please, keep following.
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