TC 6-02.20 — Cable And Wire Systems Handbook
TC 6-02.20 governs cable and wire systems, including installation, recovery, fiber optics, networks, and inside and outside plant operations.
- Publication number: TC 6-02.20
- Title: CABLE AND WIRE SYSTEMS HANDBOOK
- Date: 01/23/2018
- Proponent: T2COM
- Status: ACTIVE
View TC 6-02.20 on armypubs.army.mil
TC 6-02.20 covers tactical and non-tactical cables, connectors, aerial and underground systems, fiber optic communications, LANs, WANs, and communications substations. It requires procedures for splicing, testing, troubleshooting, cable marking, grounding, support construction, and safe installation.
Applies to: This publication applies to Active Army, the Army National Guard, and the United States Army Reserve unless otherwise stated.
Topics covered
- Tactical wire systems
- Fiber optic communications
- Aerial cable installation
- Underground cable systems
- Cable rack and wireway installation
- Facility grounding
- Local and wide area networks
- Voice over Internet Protocol
Questions and answers
What must happen before connecting a continuity tester to a wire circuit?
De-energize the circuit under test before connecting the apparatus. Accomplish this by disconnecting both ends of the tested wire before connecting the continuity tester. This prevents false indications on the test set and prevent the possibility of damage to the test set. (paragraph 1-28)
What does the outer shield of a coaxial cable do?
The outer shield is earthed (grounded) and protects the inner shield from electromagnetic interference from outside sources. (paragraph 1-27)
How much sag is required for aerial wire lines?
Six inches of sag is required for every 25 feet of span length. (paragraph 2-13)
What road clearance is required for aerial cable lines?
When placing sag in the lines, it is necessary to maintain a minimum road clearance of 18 feet across all main traffic arteries and paved roads. Maintain a clearance of 14 feet over secondary roads and at other points where vehicles travel. (paragraph 2-13)
Can A-frames be used for primary road crossings?
Do not use A-frames for primary road crossing due to insufficient height when constructed as outlined in this section. (paragraph 3-56)