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Certification Manual

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that the conditions in an attic are conducive to losing your tools. Always

have adequate lighting, and count your tools when you come back down.

When pulling wire, try and have the wire out of traffic's way as much

as possible. Go underneath a catwalk if you can. If you must cross

overhead then secure with some sort of device such as a D ring or screw

mounted zip tie. This is essential, as we do not want other tradesmen

stepping or tripping on our wires.

Most likely you will encounter a corner or have to go around a bend in

avoiding an object. This can very easily become a "pinch point" where the

wire may get snagged or damaged. Having two installers in the attic is one

solution. However, this is sometimes cumbersome as the pull is done in

relay stages. When this occurs, care must be taken not to let the wire get

kinked or knotted.

There are devices, which are very handy for these situations,

especially if there is only one person pulling

the wire. A cable pulley is one helpful

method, however it must be the kind that can

be taken apart after the wire passes through

it. Another device is the 90° conduit elbow

(see figure 12) that can be anchored with

saddle clamps to truss bracing or joists, etc.

These can be EMT or vinyl tubes that come pre-bent. If EMT is used be

sure to put vinyl bushings on both ends of the conduit.

Lastly, when pulling wire in existing facilities, remember that you are

in the resident’s home. Having wires dangling from the ceiling to the box of

wire can be a hazard to their safety. Optimally, having a person feeding

the wire will enable supervision. However if this is not possible, then try

Figure 10: Conduit Elbow

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WaveWare Apollo T-2000 Informazioni Techniche Pagina 28