Ch. 20 * (OSP) Flashcards
Count
Binder groups
Route
Path
OSP must be transitioned to indoor within ___ of bldg entrance
49’
BICSI recommendations for underground entrance conduits
(4) 4” + spare 4” & (3) 2”
Underground conduit minimum cover
24”
5’ deep trench
Shored to prevent cave-in
Dirt pile - 2’ away
Entrance wall sleeve
0.25” slope
Pedestals serving single-story buildings should be installed within ___ of each tenant space?
150’
Trench depth in cold-weather regions
Below 50 year frost line
Railroad track conduit placement
25’
Vibratory plow
Cuts the ground like an electric knife
Maintenance hole guidelines
12-20’ = two covers
Over 20’ = three covers
Identifying covers
T - telephone
S - signal
TV - CCTV / CATV
Concrete strength for mntc holes
3480 psi
Suspension strand/cable should be placed on ___ of pole line
Roadside
Range of pole strength rating
00 (strongest) - 10 (weakest)
Three types of pole loading
Transverse storm
Vertical
Bending
Outside Plant Telecommunications standard
758-A
Joint trench method: minimum vertical/horizontal separation between telecommunications facilities and street rail should be 3.3 feet ___
Below top of rail
Joint trench method: minimum vertical/horizontal separation between telecommunications and power should be ___ if will tamped earth
12”
Routing OSP cable in a building is influenced by ___
Fire code
Wall length required for 10,000 sq’
39”
Joint trench method: minimum vertical/horizontal separation between telecommunications and gas =
6”
Underground pathways
Use conduit
