ADS Environmental Services Model 4000 530017 A0 - Manual (Page 73)

4-4 ADS Model 4000 Manual
Extend the conduit approximately 12 inches vertically out
of the trench (from the ground surface) at the designated
pedestal location.
Running conduit from the telephone service location to the manhole
4. Use urethane foam to seal the space between the conduit and
the corbel to prevent infiltration into the manhole.
5. Use urethane foam or a weatherhead to form a seal between the
telephone cable and conduit at each end of the conduit. This
will prevent sewer gases from entering the telephone service
pedestal, moisture from entering the conduit during a
surcharge, and inflow from entering the manhole.
6. Backfill the trench, and restore the landscape as necessary.
7. Install a service pedestal at the designated location based on
the manufacturer's instructions.
8. Make sure the telephone company installs a network interface
box inside the pedestal.
9. Make sure a ground rod (stake) is buried inside the pedestal.
This rod is critical to ensuring proper lightning protection. If
one does not exist, bury an 8-foot copper-coated steel rod
vertically into the ground inside the pedestal until it is
completely submerged. Refer to the National Fire Protection
Association (NFPA) Standard 70 National Electrical Code
(NEC) Article 250 for detailed instructions on proper
grounding when an 8-foot vertical depth is not available.