PowerPoint presentation from 1st community meeting
POPPYFIELDS AREA OF ALTADENA
UNDERGROUND ELECTRICAL SYSTEM
IMPROVEMENTS PROPOSAL
PRESENTED BY:
LOS ANGELES COUNTY
DEPARTMENT OF PUBLIC WORKS
OPERATIONAL SERVICES DIVISION
IMPROVEMENT AREA
EXISTING SYSTEM
q Constructed in the 1920s
o Deteriorating due to age
q Total of 158 lights
q Four high-voltage series circuits
o Lengthy repair time
o Hard to maintain
IMPROVEMENT OBJECTIVES
q Upgrade underground electrical wiring
q Convert high voltage system to lower voltage multiple system (240 volts)
q Improve Reliability
LOWER-VOLTAGE SYSTEM BENEFITS
q Conduit failure only affects a small number of lights
q Quicker repair shorter down time
q Safer to maintain
OPTION 1
q Reuse existing street lighting poles (158 poles)
q New conduits and wires
q New energy-efficient light bulbs with similar light quality and output
q Demo of the new light bulbs
OPTION 1
RESULTS
q Maintains the aesthetics
q Same number of poles
q Requires about 8 service cabinets
OPTION 2
q Replace old poles with new SCE nostalgic lighting poles
q Add more poles
q More light
q New conduits and wires
OPTION 2
RESULTS
q Brighter neighborhood
q 15 high poles
q More frequent streetlight poles (about 263 poles)
q Requires approximately 15 service cabinets
q May be maintained by SCE in the future
OPTION 3
q Replace old poles with new nostalgic lighting poles
q Add more poles
q More light
q New conduits and wires
OPTION 3
RESULTS
q Maintains the aestetics
q Brighter neighborhood
q 12 high poles
q More frequent streetlight poles (about 280 poles)
q Requires approximately 16 service cabinets
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