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SAFETY, XH, CT1-4, Phone Pairs, Fiber > construction > Flashcards

Flashcards in construction Deck (67)
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1

Vertical clearance between street light bracket and communications services

20"(NESC Rule 238)

2

Vertical clearance between power equipment and brackets which are NOT grounded

40"(NESC Rule 238)

3

Communications vertical clearance over roofs inaccessible by pedestrians

3 ft(NESC Rule 234)

4

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

40" above(NESC Rule 239)

5

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

30"(NESC Rule 235)

6

Minimum depth of fiber in innerduct

36"

7

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

Top

8

NESC Rule 236 climbing space clearances

24" square bounded by conductors

9

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

30"(NESC Rule 235)

10

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)

11

NEC article that deals with communications circuits

Article 800

12

Most common type of hardline connector

Pin Connector

13

Transfers horizontal stress from the pole to the ground

Anchor

14

Cable spans______ and greater require two expansion loops

250'

15

Cable tails should be ________ft

3ft

16

Minimum clearance for telecommunications over residential driveways

11.5 ft

17

A loop formed in the cable to compensate for temperature changes

Expansion Loop

18

Required Clearance over Railroads.

23.5 ft

19

Minimum depth of (hardline) CATV

24"

20

Used to terminate RF Signals

Terminator

21

Conduit pipe is usually made from

PVC

22

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

13.5 ft

23

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

12"

24

Connector where the cable is fed directly through it

Feed Through

25

Allows strand to be pulled in only one direction

Strand Brake

26

What is the mineral that coats the steel strand?

Zinc

27

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

output

28

Vertical clearance between street light drip loop and communications services

12"(NESC Rule 238)

29

Clearance for communications lines above roads, streets or alleys

15.5 ft

30

This amount of excess fiber optic cable is stored during construction

5%