5-Minute Tech Quiz
The Code of Communications Systems
December 3, 2018
No Comments
Do You Know the International Building Code?
All Answers relate to NFPA 70, 2017 Edition
1. The current edition of the NFPA 70 is:
A. 2015
B. 2018
C. 2019
D. 2017
2. The Chapter of the NEC that covers communications systems is ____________
A. 4
B. 6
C. 8
D. 10
3. The definition for Circuit Integrity Cable can be found in Article ___________.
A. 725
B. 800
C. 110
D. Both A and B
E. None of the above
760.24(B)
4. The requirement for supporting Circuit Integrity Cable is located in Article ________.
A. 725
B. 760
C. 800
D. 110
Feedback: 800.110 (C)(1)
5. Cable routing assemblies shall be supported at intervals not to exceed 3 feet, and at each end or joint, unless listed for other support intervals, describes the requirement for ______________.
A. Vertical Support
B. Horizontal Support
C. Cable Trays
D. Communications Raceways
Feedback:
6. Match these together:
A. Article 810 (1) Premises-Powered Broadband
B. Article 820 (2) Network-Powered Broadband
C. Article 830 (3) Community Antenna Television
D. Article 840 (4) Radio and Television Equipment
7. Abandoned coaxial cables shall be identified with a tag and the tag shall be sufficient durability to withstand the environment involved.
A. True
B. False
8. Coaxial cables shall have a vertical clearance of not less than _____m from all points of roofs above which they pass.
A. 2
B. 2.5
C. 8
D. 6
Feedback: 901.6.1
9. Outside plant coaxial cables that are unlisted shall not be permitted to be installed within buildings.
A. True
B. False
901.2
10. Coaxial cables shall be permitted to be installed in any raceway included in ________.
A. Chapter 1
B. Article 800
C. Chapter 3
D. Article 840
11. Which of the following cable type substitutions is true?
A. Type CATVX may be substituted for CMP.
B. Type CATVX may be substituted for CMX.
C. Type BLP may be substituted for CATVP.
D.Type CMG may be substituted for CMR.
Feedback: Table 820.154(b)1
907.6.1
12. Medium-power network-powered broadband communications circuits located outside and entering building shall be installed using which type of cable?
A. CMX
B. CATV
C. CMR
D. BMR
Feedback:
13. A separation of at least ________ shall be maintained between any network-powered broadband communications cable and lightning conductors.
A. 6 ft.
B. 12 in.
C. 2 m
D. 4 ft.
Feedback:-
14. The length of a bonding conductor or grounding electrode conductor for network-powered broadband communications systems shall not be greater than ________ in length.
A. 4 m
B. 18 mm
C. 20 ft.
D. 25 ft.
Feedback: 907.6.4
15. Type _______ network-powered broadband cables are not permitted in vertical runs in risers.
A. BLP
B. BLR
C. BL
D. BMR
Feedback: Table 830.154(a)
Answers on page xx.
What’s Wrong With This?
Can you identify any issues with this installation?
Click here to see the answer.
Answer to Can You Identify This?:
In several locations throughout the NEC the term “neat and workmanlike manner” can be found, as well as the requirements for mechanical execution of work.
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