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2016 Master > construction > Flashcards

Flashcards in construction Deck (61):
1

The load bearing component of an aerial installation

Strand

2

A loop formed in the cable to compensate for temperature changes

Expansion Loop

3

Counteracts Horizontal forces placed on poles by the strand and cable

Guy & Anchor

4

Connects pole hardware to the anchor

Guy

5

Transfers horizontal stress from the pole to the ground

Anchor

6

Conduit pipe is usually made from

PVC

7

PVC

Polyvinyl Chloride

8

Most common type of hardline connector

Pin Connector

9

Connector where the cable is fed directly through it

Feed Through

10

Used to terminate RF Signals

Terminator

11

Allows strand to be pulled in only one direction

Strand Brake

12

Prevents unwanted payoff from the Reel

Reel Brake

13

A portable bonding method used in the stationary reel method

Traveling ground

14

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

Top

15

Measures pulling tension on the cable

Dynamometer

16

Ensures cables are not over tensioned

Breakaway Swivel

17

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

Corner Block

18

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

Tail Loading

19

Cable spans______ and greater require two expansion loops

250'

20

Cable tails should be ________ft

3ft

21

cable blocks should be placed _____ to _____ on the strand

30ft to 50ft

22

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

output

23

Double lashing is done in these three scenarios

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

24

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

50ft

25

How deep is warning tape buried?

12 inches

26

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

10-15 paces

27

Clearance for communications lines above roads, streets or alleys

15.5 ft

28

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

13.5 ft

29

Minimum clearance for telecommunications over residential driveways

11.5 ft

30

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.

9.5 ft

31

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

NESC Rule 232

32

Acronym:NESC

National Electrical Safety Code

33

Required Clearance over Railroads.

23.5 ft

34

This amount of excess fiber optic cable is stored during construction

5%

35

Minimum depth of (hardline) CATV

24"

36

Minimum depth of fiber in innerduct

36"

37

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

12"

38

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

NESC (National Electrical Safety Code)

39

NEC article that describes the general requirements for grounding

Article 250

40

NEC article that deals with communications curcuits

Article 800

41

NEC article that specifically covers coaxial cable distribution systems

Article 820

42

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

Article 830

43

This government agencies motto is "to protect human health and to safeguard the natural environment..."

Environmental Protection Agency (EPA)

44

Communications vertical clearance over roofs inaccessible by pedestrians

3 ft(NESC Rule 234)

45

Communications vertical clearance over balconies and roofs accessible to pedestrians

10.5 ft(NESC Rule 234)

46

Communications vertical clearance over swimming pools

22.0 ft(NESC Rule 234)

47

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

40"(NESC Rule 235)

48

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

30"(NESC Rule 235)

49

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

30"(NESC Rule 235)

50

NESC Rule 236 climbing space clearances

24" square bounded by conductors

51

Vertical clearance between power equipment and brackets which are grounded

30"(NESC Rule 238)

52

Vertical clearance between power equipment and brackets which are NOT grounded

40"(NESC Rule 238)

53

Vertical clearance between street light bracket and communications services

20"(NESC Rule 238)

54

Vertical clearance between street light drip loop and communications services

12"(NESC Rule 238)

55

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

40" above(NESC Rule 239)

56

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

12"

57

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

Set-up Chute

58

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

6900 pounds

59

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

3 inches

60

What is the mineral that coats the steel strand?

Zinc

61

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.

Push Guy

Decks in 2016 Master Class (110):