Page 92 - Optical Communications Essentials

Optical Fiber Cables

82 Chapter Five

Figure 5.14. Examples of tapes, posts, and ground-flush markers to indicate that a cable is buried in that
location. (Photos courtesy of William Frick & Company; www.fricknet.com.)

5.6.2. Pulling into ducts
Most ducts are constructed of a high-density polyurethane, PVC, or an epoxy
fiberglass compound. To reduce pulling tensions during cable installation, the
inside walls can have longitudinal or corrugated ribs, or they may have
been lubricated at the factory. Alternatively, a variety of pulling lubricants are

Downloaded from Digital Engineering Library @ McGraw-Hill (www.digitalengineeringlibrary.com)
Copyright © 2004 The McGraw-Hill Companies. All rights reserved.
Any use is subject to the Terms of Use as given at the website.