OES Flashcards
All connector installations on existing or new drop cable must be performed only after
ensuring
the drop is disconnected from live plant
A fixed blade prep tool must be used to prep the cable to dimensions for Series 6 and Series 11 cables.
¼” x ¼”
All installed F-connectors in the customer’s drop system must use of a torque-limiting wrench designed to tighten to
30 inch-pounds
F-connectors on all CPE must be securely tightened and not to exceed
10 inch pounds
must NOT be used to seal or weatherproof outdoor F-connector threads.
Silicone compounds
must be installed onto all outdoor F-ports
A thread sealing sleeve or thread protector
Thread protectors must be able to protect port lengths according to SCTE Standard,
0.500”
Prepackaged and pre-installed thread protectors must be pushed onto the outdoor Fport
until
it rests completely against the base of the F-port
must NEVER be used
Heat-shrinkable tubing
Thread protectors or other sealing devices must NOT be used on
indoor connectors on
CPE.
When the trap is attached to a jumper, thread protectors or weather boots must be
installed on
both ends of the F-81 barrel connector to seal the trap and the F-connector
In an aerial installation when a jumper is used, a trap that is installed on a drop must be
attached to the
strand or to a trap hanger bracket.
In underground installations, traps must be attached
a pedestal stake, or to a trap holder
bracket.
Drop fiber preference will be
pre-connectorized followed by mechanical connections
and lastly fuse on.
All fiber connectors must be secured to the optical tap with
a weatherproof connector.
All fiber connectors at the optical tap must support
APC hardened optical connections
All fiber connectors at the NID/NIU should support
either SC connectors with APC
(RFoG) or UPC (EPON) end faces
All aerial drops must meet the requirements of
Article 820 of the National Electrical Code (NEC) at a minimum.
Cables used for coaxial aerial installations must have
an integral self-supporting strength member
Series-6 drop cable must be used for all drops shorter than
150 feet long
Drops using series-11 cable or QR-320 cable shall not exceed
300 feet in length
For legacy coaxial existing drop installations, drops attached with a properly installed
2-4-4 messenger configuration are acceptable.
Aerial fiber drop is a
flat cable with one fibers.
Span clamps must NEVER be placed
over the lashing wire
If there is no power drop reference, the drop cable must be tensioned for a minimum of
6 inches of sag for every 50 feet in length.
climbing space from the center of the pole must be
maintained at all times.
A minimum 30-inch square
diameter drip loop half circle must be left from the drop cable grip to the strand.
a minimum 5-inch-diameter
Clearance from Power
At the Pole Mid-span At the House
40 inches 24 inches 12 inches
clearence above street
18’
clearance above alley, commercial driveway
16’
clearance above residential driveway subject to truck traffic.
15.5’
clearance above roof of other buildings
3’
Residential driveways not subject to truck traffic
11.5’
clearance above all poiunts of a flat roof
10.5’
Residential driveways not subject to truck traffic
looped 360 degrees.
must be placed on every aerial drop
A drop address and service tag
Aerial service drops must NEVER be attached to
power service mast, TV antennas, chimneys, lightning
rods, or gutters.
Clips must be spaced every
18 to 24 inches horizontally, 30 to 36 inches vertically
Aerial drop cable shall not cross over
any swimming pool or a utility line
All coaxial aerial drops shall not have any splices between
the tap and the grounding point at the house.
All underground drops must meet the requirements of
Article 820 of the National Electrical Code
Cables used for underground installations must have
polyethylene (PE) cable jacket.
Coaxial cables used for underground installations must have a flowing,
self-healing flooding compound on the braid wires.
Optical cables used for underground must be placed
conduit or cable-in-a-conduit
installed in a trench.
All new construction homes must have
conduit or cable-in-conduit installed in the trench
if the pedestal is on the adjoining property
The rear easement must be used
When routing the underground drop parallel to lot lines,
routing must stay 4 feet away from those lines.
Underground drop cable must extend
a minimum of 12 inches beyond the tap and minimum of 12 inches beyond the bond block
in installations all underground drops emerging at the house from the ground must have physical protection (cable guard or conduit) to a point at least
4 feet above ground or until reaching the service enclosure and The protective conduit or molding must also extend at least 8 inches below ground
The end of all underground drop conduit or molding at the house and pedestal must be sealed from water penetration with the use of
Room Temperature Vulcanizing (RTV) sealant, duct cap, or other acceptable means.
Underground drop cables routed down a pole must have physical protection,
to a point at least 8 feet above ground and to at least 8 inches below ground.
Underground drop cable restorations requiring splicing must allow only
ONE splice in any cable section between the tap port and a driveway, or between a driveway and the grounding point at the house.
If a cable is damaged under a sidewalk or driveway, new cable must be placed for that portion and must be spliced at a point which is a minimum
12 inches from the edge of the sidewalk or driveway.
Any underground drop cable which requires splicing must be sealed from moisture contamination or contact with the soil in
approved encapsulating device of sufficient length to completely cover the splice and both connectors
All temporary drop must be marked with
fluorescent flags or wrapped with caution tape
boundary between the outside network drop cable and the internal home distribution wiring.
The service distribution point outside the home
minimum diameter loops of series-6 cable,
5 inch
minimum diameter loops of series-11 cable,
8 inch
All hardware used for grounding and bonding must be
UL listed for its purpose and approved by Comcast Corporate Engineering
All drop cables and hardware used in residential service installations must meet all the listing requirements of
NEC Article 820, and must be UL listed.
All technicians must be properly trained in the use of
Foreign Voltage Detector (FVD) and a Digital Multi-Meter (DMM).
he bonding conductor for bonding Series-6 drop cable must be
12 AWG or larger, insulated solid copper wire.
The bonding conductor for bonding Series-11 cable must be
10 AWG or larger, insulated solid copper wire.
Ground conductors of all sizes must maintain a minimum bending radius of
1 ½ inches.
No bend of a conductor must form an included angle of
less than 90° (per NFPA 780)
The length of the bonding conductor must be as short as practicable, and must not exceed
20 ft. in length per the requirements of NEC Article 820
must be placed on all bonding conductors near the point of its attachment to the property power grounding electrode
A Do Not Remove tag
The drop must always be properly bonded BEFORE
any customer equipment is connected
Bonding Option 1:
property’s bonding block
Bonding Option 2:
6 AWG solid copper stub
Bonding Option 3:
main grounding electrode
Bonding Option 4:
metallic meter cabinet using an appropriate and approved clamp.
It is prohibited for the bonding attachment to be made to
electrical equipment door or other movable components
Bonding Option 5:
grounded metal conduit of the electrical service mast
Bonding Option 6
grounded interior metal cold water piping
Bonding to metal cold water pipe is acceptable ONLY when
within five feet of where the metal underground cold-water pipe enters the property, the metal underground cold-water pipe has been in direct contact with the ground for 10 feet or more, when a #6 AWG grounding jumper present and is ‘jumping’ the cold-water meter.
verified proper grounding measurement.
25 ohm
