MIL-HDBK-1004/2A
Page
3.2.2.2
Cable Protection................................
16
3.3
Draw-In Systems.................................
16
3.3.1
Duct Lines......................................
16
3.3.1.1
Routes..........................................
16
3.3.1.2
Multipurpose Conditions.........................
17
3.3.1.3
Clearance.......................................
17
3.3.1.4
Materials.......................................
17
3.3.1.5
Size of Ducts...................................
17
3.3.1.6
Arrangement of Duct Banks.......................
17
3.3.1.7
Drainage........................................
17
3.3.1.8
Spare Capacity..................................
17
3.3.2
Manholes and Handholes..........................
19
3.3.2.1
Selection.......................................
19
3.3.2.2
Location........................................
19
3.3.2.3
Use.............................................
19
3.3.2.4
Construction of Manholes........................
19
3.3.2.5
Construction of Handholes.......................
19
3.3.2.6
Stubs...........................................
19
3.3.2.7
Hardware........................................
19
3.4
Underground Cables..............................
20
3.4.1
Single- or Multiple-Conductor Cables............
20
3.4.1.1
Single-Conductor Cables.........................
20
3.4.1.2
Multiple-Conductor Cables.......................
20
3.4.2
Conductor Materials.............................
20
3.4.2.1
Annealed Copper.................................
20
3.4.2.2
Medium-Hard-Drawn Copper........................
20
3.4.2.3
Aluminum........................................
20
3.4.3
Preferred Cable Insulations.....................
20
3.4.3.1
Advantages......................................
21
3.4.3.2
Disadvantages...................................
21
3.4.4
Other Insulations...............................
21
3.4.4.1
Polyvinyl-Chloride..............................
21
3.4.4.2
Polyethylene....................................
21
3.4.4.3
Butyl-Rubber....................................
21
3.4.4.4
Silicone-Rubber.................................
21
3.4.4.5
Mineral-Insulated Cable
21
3.4.4.6
Rubber..........................................
21
3.4.4.7
Varnished-Cambric...............................
21
3.4.4.8
Paper-Insulated.................................
21
3.4.5
Cable Sheaths...................................
22
3.4.5.1
Nonmetallic.....................................
22
3.4.5.2
Metallic........................................
22
3.4.6
Cable Coverings.................................
22
3.4.7
Shielded Cables.................................
22
3.4.8
Cable Splicing..................................
22
3.4.9
Cable Fireproofing..............................
22
3.4.10
Cable Identification............................
22
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