Architecture

Belowground Pipeline Networks for Utility Cables by Lawrence M. Slavin

By Lawrence M. Slavin

This guide offers a normal evaluate of equipment utilized in putting software cables belowground, together with formal underground conduit structures and comparatively reasonably cheap direct-buried amenities - with an emphasis on cost-effectiveness and house potency. "ASCE guide of perform for Belowground Pipeline Networks for software Cables" describes prior practices, in addition to newer suggestions within which person pipes or ducts will be advantageously deployed along side direct-buried cables. similar layout, building, and operational requisites and instructions are supplied all through this booklet, in addition to analyses of themes together with: underground conduit platforms, direct-buried structures, cable install tools in duct, hybrid belowground cable networks, prestige of under flooring Cable Networks. This booklet offers either introductory and particular layout and development info to help the implementation of the proposed hybrid belowground cable community. it is going to be useful to new and skilled engineers in highway and group building, application vendors, and contractors.

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As a general depth of cover for fiber-optic cable. DIRECT-BURIED SYSTEMS 39 aboveground markers that indicate ownership and contact information and ٗ warning tape buried at a 12-in. minimum above the cables and º proper bonding and grounding of cables, consistent with NESC rules. ٗ These NESC and Blue Book rules provide basic trench design rules, as illustrated in Fig. 3-4 for a trench containing distribution cables and Fig. 3-5 for a trench containing service cables and wires. In general, joint trenching of power and communication cables has been limited to distribution cables (Lucent 1996).

As a general depth of cover for fiber-optic cable. DIRECT-BURIED SYSTEMS 39 aboveground markers that indicate ownership and contact information and ٗ warning tape buried at a 12-in. minimum above the cables and º proper bonding and grounding of cables, consistent with NESC rules. ٗ These NESC and Blue Book rules provide basic trench design rules, as illustrated in Fig. 3-4 for a trench containing distribution cables and Fig. 3-5 for a trench containing service cables and wires. In general, joint trenching of power and communication cables has been limited to distribution cables (Lucent 1996).

Reel if necessary, placement distances with chute plowing are essentially unlimited. Depending on the size of the tractor and plow blade, it is also possible to place one or more flexible ducts using this technique, which can be used to contain the cable(s). Figure 3-11 shows a typical cable chuteplowing operation, with the cable continuously fed off a reel, mounted at the front of the tractor unit, into the plow chute blade at the rear. , hundreds of feet). It is an especially useful technique for installing new service lines in established residential areas for which it is important to minimize surface disturbance and restoration.

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