Chapter 8 Communications Systems

Question 1

A circuit that extends voice, data, interactive services, telegraph, outside wiring for fire/burglar alarm and telephone/fax/answering machine from communication utility’s.

Answer 1

Communications circuit

Article 800.2

Question 2

True or False
The relative location of outside overhead communications wire on the same pole as power is; below the power conductors on a separate cross-arm

Answer 2

True

Article 800.44(A)(1) and (2)

Question 3

A supply service drop of 750V and below shall have a minimum separation of ____ from communications service drops at any point along the span of the drop including at their attachment to the building provided the power service is insulated and has a 40” clearance at the pole.

Answer 3

12”

Article 800.44(A)(4)

Question 4

Communications cables shall have a a vertical clearance of ____ from all points of roofs above which they pass.

Answer 4

8 feet

Article 800.44(B)

Question 5

True or False

Underground communications cables can share a handhold or manhole enclosure without any separating barriers.

Answer 5

False

Article 800.47(A)

Question 6

A separation of ____ shall be maintained between communications wires on buildings and lightning conductors.

Answer 6

6 feet

Article 800.53

Question 7

True or False
Metal raceways or conduits that allow communications cables to enter a building before the primary protector shall be grounded

Answer 7

True

Article 800.50(C)

Question 8

True or False

Raceway fill requirements of Chapter 3 and 9 apply to communications cable.

Answer 8

False

Article 800.110(B)

Question 9

Horizontal cable routing assemblies shall be supported at intervals not to exceed ____, and at each joint,unless listed for other intervals. In no case shall the distance exceed ____.

Answer 9

3 feet. 10 feet

Article 800.110(C)(1)

Question 10

Vertical runs of cable routing assemblies shall be supported at intervals not exceeding ____ unless listed otherwise, and have no more than 1 joint between.

Answer 10

4 feet

Article 800.110(C)(2)