Flashcards in Ch. 20 - Outside Plant.csv Deck (54)
Bucket truck caution:
The 'count' level of service diversity assigns circuits among different:
Binder groups within one cable
The 'backbone' level of service diversity assigns circuits among different:
Intrabuilding backbone cables
Level of Service Diversity:
Dual service entrances
-Police & Fire Stations
-Radio & TV Stations
-Data Centers & CO
(not sports arena, circus, arena)
OSP cable is typically unlisted because of their:
sheath material and filling compounds
OSP type cable must be terminated ________ from P.O.E.
588' between buildings = 686'
(study drawing in page)
AP may bring fiber or copper to customer property through:
The recommended min. conduit reqs for each underground telecommunications service entrance point are:
Four 4" conduits with at least one spare 4" conduit
Consider placing ________ innerduct inside _________ conduit.
When a building is not on the property line, the _____ must provide ____ conduit(s) from a point inside the building to the property line or easement.
Building owner, two or more
When installing UG entrance, the max. number of bends between pulling points are:
Two 90° bends
UG conduit should be terminated at the designated property line or easement w/ a min. depth cover of:
U/G conduit depth? In cold climates?
Cold climates - below the 50 yr freeze line
Entrance facility conduit
4" ceiling or floor
**Shore a trench
5' deep or more w/ min. clearance of 2' from edge of the edge of the dirt pile to the edge of the trench.
When refilling a trench, the earth should be
Aerial entrances to small buildings should be _______ pairs or less.
When aerial entrances are used, the span from the last pole to the bldg. must not exceed ________.
When an aerial entrance enters a building through a vertical conduit mast, the mast should not exceed more than ______ above the roof line.
Entrance sleeve through wall=
Slopes 0.5" & flush w/ wall
Protective barrier (bollards)
-filled with cement
-Encased to min. depth of 36"
-Extend a min. of 42" AFF
The recommendation is that if an entrance facility is to serve a gross floor space of 60,000 ft°, then the wall length required for terminating space is:
The entrance facility terminating space must be located in a dedicated room if the building to be served is larger than:
Pedestals mounted on the outside wall of buildings should be installed within _____ of each tenant space.
**Single story office/whse, how many pedestals do you use in 600' run?
Minimum depth of a trench should allow _______ of cover from top of cable to final grade.
Where there are several layers of UG services possible, and adequate identification may be questionable, the location method recommended is: