Ch. 20 * (OSP) Flashcards
0
Q
Count
A
Binder groups
1
Q
Underground pathways
A
Use conduit
2
Q
Route
A
Path
3
Q
OSP must be transitioned to indoor within ___ of bldg entrance
A
49’
4
Q
BICSI recommendations for underground entrance conduits
A
(4) 4” + spare 4” & (3) 2”
5
Q
Underground conduit minimum cover
A
24”
6
Q
5’ deep trench
A
Shored to prevent cave-in
Dirt pile - 2’ away
7
Q
Entrance wall sleeve
A
0.25” slope
8
Q
Pedestals serving single-story buildings should be installed within ___ of each tenant space?
A
150’
9
Q
Trench depth in cold-weather regions
A
Below 50 year frost line
10
Q
Railroad track conduit placement
A
25’
11
Q
Vibratory plow
A
Cuts the ground like an electric knife
12
Q
Maintenance hole guidelines
A
12-20’ = two covers
Over 20’ = three covers
13
Q
Identifying covers
A
T - telephone
S - signal
TV - CCTV / CATV
14
Q
Concrete strength for mntc holes
A
3480 psi
