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2018 MM > construction > Flashcards

construction Flashcards

1
Q

The load bearing component of an aerial installation

A

Strand

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2
Q

A loop formed in the cable to compensate for temperature changes

A

Expansion Loop

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3
Q

Counteracts Horizontal forces placed on poles by the strand and cable

A

Guy & Anchor

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4
Q

Connects pole hardware to the anchor

A

Guy

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5
Q

Transfers horizontal stress from the pole to the ground

A

Anchor

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6
Q

Conduit pipe is usually made from

A

PVC

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7
Q

PVC

A

Polyvinyl Chloride

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8
Q

Most common type of hardline connector

A

Pin Connector

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9
Q

Connector where the cable is fed directly through it

A

Feed Through

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10
Q

Used to terminate RF Signals

A

Terminator

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11
Q

Allows strand to be pulled in only one direction

A

Strand Brake

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12
Q

Prevents unwanted payoff from the Reel

A

Reel Brake

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13
Q

A portable bonding method used in the stationary reel method

A

Traveling ground

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14
Q

Strand and cable should pay-off the _______ of the reel

A

Top

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15
Q

Measures pulling tension on the cable

A

Dynamometer

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16
Q

Ensures cables are not over tensioned

A

Breakaway Swivel

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17
Q

Minimizes drag on the cables in the corners & ensures that minimum bending radius is not exceeded

A

Corner Block

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18
Q

Tension in the cable caused by the mass of the cable & reel brake

A

Tail Loading

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19
Q

Cable spans______ and greater require two expansion loops

A

250’

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20
Q

Cable tails should be ________ft

A

3ft

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21
Q

cable blocks should be placed _____ to _____ on the strand

A

30ft to 50ft

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22
Q

Expansion loops should be formed on the ______ side of the pole

A

output

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23
Q

Double lashing is done in these three scenarios

A

1) two or more cables2) trunk cables3) Street and RR Crossing

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24
Q

The mechanical bender should be kept in place for the first _______ of lashing

A

50ft

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25
Q

How deep is warning tape buried?

A

12 inches

26
Q

When doing a figure eight with fiber, how far apart should the cones be placed?

A

10-15 paces

27
Q

Clearance for communications lines above roads, streets or alleys

A

15.5 ft

28
Q

Clearance for roads in rural areas where it is unlikely that vehicles will be crossing under the line

A

13.5 ft

29
Q

Minimum clearance for telecommunications over residential driveways

A

11.5 ft

30
Q

Clearance where a communication line along a road is located relative to fences, ditches, embankments, etc., so that the ground under the line would not be expected to be traveled except by pedestrians.

A

9.5 ft

31
Q

NESC Rule that covers the vertical clearances of wires, conductors and equipment above ground, roadway, rail or water services.

A

NESC Rule 232

32
Q

Acronym:NESC

A

National Electrical Safety Code

33
Q

Required Clearance over Railroads.

A

23.5 ft

34
Q

This amount of excess fiber optic cable is stored during construction

A

5%

35
Q

Minimum depth of (hardline) CATV

A

24”

36
Q

Minimum depth of fiber in innerduct

A

36”

37
Q

The minimum depth that power is supposed to be buried under CATV

A

12”

38
Q

Consists of safety regulations and procedures issued by ANSI for the practical safeguarding of persons during the installation, operation and maintenance of electric supply and communication lines as well as associated equipment

A

NESC (National Electrical Safety Code)

39
Q

NEC article that describes the general requirements for grounding

A

Article 250

40
Q

NEC article that deals with communications curcuits

A

Article 800

41
Q

NEC article that specifically covers coaxial cable distribution systems

A

Article 820

42
Q

NEC article that deals with network-powered broadband communications systems (i.e. powering of the network)

A

Article 830

43
Q

This government agencies motto is “to protect human health and to safeguard the natural environment…”

A

Environmental Protection Agency (EPA)

44
Q

Communications vertical clearance over roofs inaccessible by pedestrians

A

3 ft(NESC Rule 234)

45
Q

Communications vertical clearance over balconies and roofs accessible to pedestrians

A

10.5 ft(NESC Rule 234)

46
Q

Communications vertical clearance over swimming pools

A

22.0 ft(NESC Rule 234)

47
Q

Required Clearance Between Electric Attachment and Communication Attachment (at pole)

A

40”(NESC Rule 235)

48
Q

Required Clearance Between Electric Attachment and Communication Attachment at Midspan (NESC)

A

30”(NESC Rule 235)

49
Q

Clearance Between Effectively Grounded Electric Attachment and Communication Attachment (at pole)

A

30”(NESC Rule 235)

50
Q

NESC Rule 236 climbing space clearances

A

24” square bounded by conductors

51
Q

Vertical clearance between power equipment and brackets which are grounded

A

30”(NESC Rule 238)

52
Q

Vertical clearance between power equipment and brackets which are NOT grounded

A

40”(NESC Rule 238)

53
Q

Vertical clearance between street light bracket and communications services

A

20”(NESC Rule 238)

54
Q

Vertical clearance between street light drip loop and communications services

A

12”(NESC Rule 238)

55
Q

Vertical supply conductors shall be guarded with conduit to this height above the highest communication attachement

A

40” above(NESC Rule 239)

56
Q

Minimum Clearance between Communication and service drops and any conductor of the power supply at the service entrance

A

12”

57
Q

What is used to guide cables from the cable trailer to the strand and is supported by a setup bracket?

A

Set-up Chute

58
Q

3/8 inch strand will have an ultimate breaking strength of how many pounds?

A

6900 pounds

59
Q

What is the maximum cable bundle diameter, in inches, that a cable “D” size lasher will accommodate?

A

3 inches

60
Q

What is the mineral that coats the steel strand?

A

Zinc

61
Q

When it is impossible to obtain sufficient right-of-way for a pole guy, this type of guy is used and is constructed from an old power pole and a special bracket.

A

Push Guy

2018 MM (59 decks)

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