will be reused and their respective service areas will remain
generally the same based on electrical loading demands.
The Feeder Study provided the conceptual layout of the new
underground feeder network that is generally commensurate
with the existing overhead system. This was done in an
effort to minimize the cost to transition back to the existing
overhead system at the phase boundaries. However, there
are some upgrades shown in the plan related to new feeder
ties and looping that will provide enhanced reliability to
the Town. FPL staff acknowledged that these were upgrades
during our meeting to review the conceptual layout.
Kimley-Horn’s recommendation to the Town is to allow
these upgrades to be constructed, but at no additional cost
to the Town since the Town should not subsidize system
improvements desired by FPL. Costs related to upgrades
should be clearly identified during the development of the
Binding Cost Estimates for each phase so these costs can be
credited along with the applicable Government Adjustment
Factor (GAF) Waiver.
It should also be noted that the switch cabinets identified
in the Feeder Study are not representative of all the switch
cabinets that will ultimately be required for the electrical
portion of the project. The switch cabinets identified are
purely those required at the tie locations between feeder
service areas. Additional switch cabinets will be required in
each service area based on electrical load demand in that
service area. hand holes will be required for the overhead to underground
conversion but this equipment is not considered significant.
Locations for these minor equipment elements will be
determined during the detailed design for each phase.
5.6.2 AT&T Concept Design AT&T noted that the copper system pedestals are different
than the fiber system pedestals. Easements should provide
space for both copper and fiber pedestals as the fiber pedestal
will need to be installed and made operational prior to
the removal of the copper pedestal during the future fiber
overlay program.
Initially, AT&T plans to design a like-for-like coaxial based
network conversion. This being the case, they plan on reusing
all of their existing ground level Service Area Interface (SAI)
cabinets that are found throughout the island. In the future,
AT&T has reported that they are budgeting to install a fiber
optic system overlay. To implement this upgraded system,
AT&T will require new Fiber Distribution Cabinets (PFP)
and easements throughout the Town.
AT&T provided Kimley-Horn with their desired general
locations for the PFP cabinets. AT&T identified the need for
approximately 23 future PFP cabinets throughout the Town.
In most cases, these cabinets are located near the existing SAI
cabinets or near an existing controlled environment vault
(CEV). AT&T reports that no new significant infrastructure
beyond the future PFP cabinets will be required to implement
the overhead to underground conversion. It should be noted
that many service pedestals and below grade vaults and
TOWN-WIDE
OF of
UTILITIES
PROGRAM
Town-Wide UNDERGROUNDING
UNDERGROUNDING
Utilities
Program
MASTER
PLAN DOCUMENT
Document
MASTER PLAN
5.6.3 Comcast Concept Design
Comcast has offered the Town the opportunity that the
underground project provides to install a Fiber to the Premises
(FTTP) network. This would be an upgrade to the existing
Fiber to the Node (FTTN) network that is currently in place.
However, Comcast has stated that the additional cost related
to this upgrade would need to be borne by the Town. This
being the case, this master plan contemplates that a “like for
like” fiber / coaxial system (FTTN network) will be deployed
for the undergrounding program. However, as part of the
planning process, locations for new Fiber Optic Distribution
Equipment would be required for a FTTP net