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Flashcards in €h 20 - Outside Plant Deck (43):
1

20-2 safety procedures

Special sites =

 

Factories nuclear power plants

2

20–2 safety procedures

Careful attention aerial bucket trucks =

 

Winter

3

20–3 underground pathways

Underground pathways =

 

Conduit

4

20–6

Right-of-way =

 

Easements

5

20–7 service diversity

Count =

sheet or cable =

route =

backbone =

 

* binder groups

* sheath or cables

* paths

* backbone cables

6

20–7

dual entrances =

 

Except residence, does not belong

7

20–8 entrance cable guidelines

OSP type cable termination or transition =

 

Must not exceed 49 feet point of entrance

8

20–8 entrance cable guidelines

Indoor/outdoor NEC cable=

 

past 49 feet from point entrance

9

20–800 cable guidelines

588 ft between =

 

49ft + 588ft + 49ft = 686ft total

10

20–9 types of entrances

Underground =

buried =

Aerial =

 

* Conduit

* out of sight service w/out conduit

* overhead

11

20–10 placing innerducts

Innerducts =

(2)

 

* Smaller pathway

* 1 to 2 inch

12

20–13 terminating conduit designated property line

Cover depth =

 

Minimum cover of 24 inches

13

20–13 cover depth

Cold climates =

 

Minimum burial 50 year freeze point

14

20–14 designing termination points

ITS designer should design conduits =

 

4" AFF

15

20–15 avoid a sunken trench

Refilling a trench =

 

Tamped

16

20–15

Shoring =

(2)

 

* 5ft deep

* 2ft edge of the trench

17

20–16 maximum span

Aerial =

 

Not exceed 100 feet

18

20-20 vertical conduit masts

Do not extend the mast > =

 

4in

19

20-22

Entrance through a wall =

 

0.5in slope/flush

20

20–23 requirements for inside space

Protected or barriers =

(2)

 

* 4 inch diameter

* filled with cement

21

20–24 requirements for inside space

100,000 ft.² =

 

Dedicated room for entrance facilities

22

20–25 pedestal hardware mounted outside walls

Pedestals =

 

150ft each tenant

23

20- 29 Direct buried underground pathways

Trench =

Sunken trench =

subsurface facilities =

 

* 24in of cover

* Tamp

* Call local underground utilities

24

20–30 direct buried underground pathways

Locating methods =

 

Except sonar, does not belong

25

20–31 direct buried and underground pathways

Shoring requirements=

 

5ft deep 24in from edge

26

20–31 joint trench required separations

Power =

(3)

 

* 12in well-tamped earth

* 6in when crossing - in 10ft of rigid PVC

27

20–32 warning tape requirements

Warning tape =

(2)

 

* 12in

* non-detectable or detectable

28

20–32 warning tape requirements

Common ground alliance (CGA) =

 

Color orange

29

20–33

vibratory plow =

 

Cuts into the ground and cable is fed

30

20–35 conduit guidelines

Using corrosion resistant conduit =

 

Except black iron pipe, does not belong

31

20–36 positioning underground conduit risers on poles

Practical =

 

Field side of the pole

32

20–36 choosing a pull cord

Test rating =

 

200 lb

33

20–39 multiple covers

Manhole over 12 feet long=

(2)

 

*Between 12 feet and 20 feet, use two covers

*over 20 feet, use three covers

34

20–39

MH 's 8ft, 16ft, & 26ft

How many covers?

 

6 covers

35

20–39 identifying covers

T=

S=

TV=

 

*telephone

*signal

*CCTV/CATV

36

2039 manhole interior hardware

MHs equipped =

(3)

 

* Pulling eyes 7/8in

* Sump 8in

* Ladder

37

20–39 concrete strength and reinforcement

Strength of concrete =

 

3480 psi

38

20–44 aerial plant criteria

Suspension strand and cable =

 

Placed on the roadside

39

20–45 poles

Poles by strength =

(2)

 

* Strongest rated pole at 00

* Weakest rated pole at 10

40

20–45 poles

Withstand the same horizontal load =

 

24 inch from the top of the pole

41

20–45 pole loading

Transverse =

vertical =

bending =

 

* Wind pressure

*weight

*corners

42

20–25 optical fiber cables

New strand for the optical fiber cable =

 

Uppermost

43

20–48 references

EAI-758-A =

 

Outside plant telecommunications