Ch. 20 * (OSP) Flashcards Preview

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Flashcards in Ch. 20 * (OSP) Deck (24)
0

Underground pathways

Use conduit

1

Count

Binder groups

2

Route

Path

3

OSP must be transitioned to indoor within ___ of bldg entrance

49'

4

BICSI recommendations for underground entrance conduits

(4) 4" + spare 4" & (3) 2"

5

Underground conduit minimum cover

24"

6

5' deep trench

Shored to prevent cave-in
Dirt pile - 2' away

7

Entrance wall sleeve

0.25" slope

8

Pedestals serving single-story buildings should be installed within ___ of each tenant space?

150'

9

Trench depth in cold-weather regions

Below 50 year frost line

10

Railroad track conduit placement

25'

11

Vibratory plow

Cuts the ground like an electric knife

12

Maintenance hole guidelines

12-20' = two covers
Over 20' = three covers

13

Identifying covers

T - telephone
S - signal
TV - CCTV / CATV

14

Concrete strength for mntc holes

3480 psi

15

Suspension strand/cable should be placed on ___ of pole line

Roadside

16

Range of pole strength rating

00 (strongest) - 10 (weakest)

17

Three types of pole loading

Transverse storm
Vertical
Bending

18

Outside Plant Telecommunications standard

758-A

19

Joint trench method: minimum vertical/horizontal separation between telecommunications facilities and street rail should be 3.3 feet ___

Below top of rail

20

Joint trench method: minimum vertical/horizontal separation between telecommunications and power should be ___ if will tamped earth

12"

21

Routing OSP cable in a building is influenced by ___

Fire code

22

Wall length required for 10,000 sq'

39"

23

Joint trench method: minimum vertical/horizontal separation between telecommunications and gas =

6"