OSP Aerial Plant & Pole Line Design 2

Question 1

What is the standard span length for aerial telecommunications cable in typical suburban environments?

Accepted Answer

125 to 150 feet

Answer

Typical aerial telecom cable spans in suburban areas range from 125 to 150 feet, balancing sag, loading requirements, and pole count economics.

Question 2

In aerial plant design, what is a 'dead-end' pole?

Accepted Answer

A pole where cable tension is terminated and not passed through to the next span

Answer

A dead-end pole is one where the aerial strand and cable are terminated, meaning the full tension of the cable run is borne by that single pole rather than being passed through.

Question 3

The NESC loading districts (Light, Medium, Heavy) are used to account for which environmental factor in aerial plant design?

Accepted Answer

Ice and wind loading on cables and structures

Answer

NESC loading districts categorize geographic regions by combined ice and wind loading conditions that aerial structures must withstand.

Question 4

What is the purpose of a 'stub pole' in aerial plant construction?

Accepted Answer

A pole installed beside a deteriorating pole to transfer its loads

Answer

A stub pole (also called a replacement stub) is a short pole installed adjacent to a weak or damaged pole to transfer mechanical loads until a full replacement can be made.

Question 5

What is the minimum separation typically required between power supply conductors and communication cables on a shared utility pole (NESC communications worker safety zone)?

Accepted Answer

40 inches

Answer

The NESC communications worker safety zone requires a minimum of 40 inches of separation between power supply conductors and communication cables to protect workers from electrical hazards.

(OSP) Outside Plant Designer Practice Test

(OSP) Outside Plant Designer Practice Test

OSP Aerial Plant & Pole Line Design 2