HomeMy WebLinkAboutPENNY FLATS (BLOCK 33) - PDP - 32-05 - CORRESPONDENCE - CITY STAFFCity of Fort Collins Meeting Notes: July 6, 2005
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8. Loop primary feed may not be practical due to street cuts and probably will not be required in this
case.
9. Options for location of transformers for buildings 4 and 8 were discussed at length in an effort to
provide feasible location while minimizing secondary feed length. Conclusion was to feed
building 8 from a transformer at the north and 4 through a long secondary from the pedestrian
spine. Feeding 4 via a transformer at the east would require a vault to be installed at the south end
of the pedestrian spine due to the number of 90-degree bends needed to route the primary feed. If
secondary conductors are routed in the parking garage they require 2-inch concrete encasement for
cabling to be considered exterior to the parking garage. High voltage primary cabling is not
allowed in the parking garage, or under the parking garage.
10. The exact locations of transformers will need to be coordinated with Light and Power Engineering
(Doug Martine).
It. Long distances of secondary conductors from transformer to services will require an increase in
wire and conduit sizes due to the voltage drop.
12. A 5 s jaw terminal is required in electric utility meters.
13. Transformer side clearances are as follows: Non-combustible wall material of 3 feet for three
sides, with side door opening clearance of 8 feet.
14. Meter service locations need to be defined. Meters located in the underground parking garage may
be an option if the garage is not secured. Access to utility meters needs to be 24n with no special
keys allowed (see Ft. Collins Light and Power requirements).
15. 50 kw at 1 phase power are the largest underground vault transformers allowed.
16. Transformers may be painted as public art. Identification numbers need to be maintained.
17. (1) C-1 form will be required per building along with 1 per fire pump.
18. Glenn Schlueter is concerned about and is looking into issues around placing transformers on top
of the outfall and associated easement issues. He will look into limitations of locating transformers
on top of outfall structure and notify Coburn Development, Inc. of his conclusions.
Please review these meeting notes and contact our office by July 18, 2005 with any corrections or additions
you would like to have included. If we do not receive notification by that date we will record these notes as
accepted by the parties involved.
PLANNERS *DESIGNERS . BUILDERS
1811 PEARL STREET
BOULDER, CO 80302
(303) 442-3351 FAX (303) 447-3933
COBURN
Meeting Notes (Revised Per Comments)
Meeting With: City of Fort Collins Staff
Attendees: Dan Romer: Coburn Development, Inc.
Pete Weber: Coburn Development, Inc.
Ron McNutt: R.J. McNutt & Associates, Inc.
Todd Parker: Drahota Construction
Anne Aspen: City of Fort Collins, Current Planning
Ken Waido: City of Fort Collins, Advance Planning
Doug Martine: City of Fort Collins, Utilities
Marc Virata: City of Fort Collins, Engineering
Glen Schlueter: City of Fort Collins, Utilities
Date: July 6, 2005
Project: Penny Flats: Fort Collins
Subject: Electrical Service Concept
Discussion:
1. Major existing underground electrical, 13,200 volts, located in alley comprised of (4)5", (2)4",
(2)2" conduits running through entire block. The conduits listed are encased in a 2000 psi
concrete mix.
2. Primary service connection for Penny Flats will originate in electrical termination cabinet located
directly east of Trolley Bam.
3. Expected transformer configuration will be 3 phase units of less than 500 KVA located at the
surface. In general, vault located 3 phase transformers are not practical due to
connection/disconnection process and required clearances. Primary power raceways require 36
inches of cover, raceways to be 4" Conduit.
4. Access for line truck is required to within 10' of each transformer location. Transformers of 300
kVA and smaller may be located under an overhang as long as the overhang is at least 25' high.
Depending on specifics, there may be other adjustments or special circumstances that the utility
may be able to accommodate to meet a specific design problem.
5. Fire pumps require isolated service with meters tested twice a year. Standby power charges can
be avoided through duplicate phone line to pump meter and house meter. Pump utility meter and
house meter to be totalized and billed as one billing, cost estimate $600 initial set up. Care must
be taken to complete meter testing during low demand periods for house meter. Clarification is
needed on meter and fire pump testing.
6. Phone raceway at utility electric meters and tracer wire in secondary power raceways from utility
transformers to electric panes need to be provided.
7. Discussed routing of secondary (120/208 volts) vs. primary cabling (high voltage); estimate cost
from $150+ per foot for secondary, $15 per foot for primary cable.
PLANNERS a DESIGNERS a BUILDERS
1811 PEARL STREET
BOULDER, CO 80302
(303) 442-3351 FAX (303) 447-3933