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What is Spacer Cable?
Compact ConfigurationMultiple CircuitsSubstation ExitsLong Runs/less voltage drop
Covered ConductorWithstands temporary branch contactEliminates temporary faultsProtects wildlifeLess clearance issues
MessengerMechanical Strength
Long SpansPhysical Shield
Lightning Shield WireSystem Neutral
Greater ReliabilityLess Tree Trimming
Hendrix Spacer Cable
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4 Reasons to use Spacer Cable
Lower Project CostsLower Project Costs
Lower O&M CostsLower O&M Costs Public Relations andPublic Relations and GreenGreen
InitiativesInitiatives
Hendrix Support ServicesHendrix Support Services
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Lower Project Costs: Under builds
Bare wire under buildBare wire under build
Change out every poleChange out every pole cost of $3k eachcost of $3k each
Taller polesTaller poles cost $200 additional eachcost $200 additional each
Transfer existingTransfer existing cost of $50k/milecost of $50k/mile
Transfer communicationsTransfer communications cost $10k/milecost $10k/mile
Spacer under buildSpacer under build
NO pole change outsNO pole change outs NO Transfer costsNO Transfer costs
Savings of $75Savings of $75 -- $175k/mile$175k/mile
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Double circuit Bare Wire Transmission
under build
1 or 2 intermediate poles per span at
cost of $3k each
Intermediate poles require additional
R/W requirements cost ??$
Some Transmission pole change outs cost $10k each
Double circuit spacer transmissionDouble circuit spacer transmission
under buildunder build
NO intermediate polesNO intermediate poles NO transmission pole change outsNO transmission pole change outs
NO R/W requirementsNO R/W requirements
SPACER cable option is $75SPACER cable option is $75 --
$100k less per mile than bare wire$100k less per mile than bare wire
Lower Project Costs: Under builds
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Lower Project Costs: Back up feed
to Hospital
URDURD directionaldirectionalboring, Road crossings,boring, Road crossings,urban obstaclesurban obstacles costcost$2MM$2MM
Bare Wire: Not anBare Wire: Not anoption, narrow routeoption, narrow routethrough heavilythrough heavily
treed/park areas.treed/park areas. Spacer: Savings $1.5MMSpacer: Savings $1.5MM
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Lower Project Costs: Substation Exits
Bare wire exitBare wire exit
Separate pole line for eachSeparate pole line for eachcircuitcircuit
1 acre additional real estate1 acre additional real estate
Reliability risk at feedersReliability risk at feeders
Dip poles in sub for clearanceDip poles in sub for clearance
issuesissues
Spacer Cable ExitSpacer Cable Exit
3 circuits on one pole line3 circuits on one pole line
No dip polesNo dip poles
Less real estateLess real estate
Reliable feedersReliable feeders
Cost Savings = $75Cost Savings = $75 -- $150k$150k
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Lower Project Costs: Additional Sub exit
Bare wire cost estimate $300k (converting to triple circuit)Bare wire cost estimate $300k (converting to triple circuit)
Spacer Cable Under build: Project came in at < 30% of originalSpacer Cable Under build: Project came in at < 30% of original
budgetbudget
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Lower Project Costs: Improving Reliability
Worst performing circuit even afterWorst performing circuit even afterconverting toconverting to treetree wire.wire.
Option 1Option 1 URDURD cost $2MMcost $2MM heavy tree casualtiesheavy tree casualties
Option 2Option 2 tree trimmingtree trimming -- $600k$600k
short term fix with public resistanceshort term fix with public resistance
Option 3Option 3: Spacer Cable: Spacer Cable NO tree trimmingNO tree trimming
Good Public relationsGood Public relations
Total cost < $500kTotal cost < $500k
NowNow
best performing circuitbest performing circuit
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Lower Project Costs: Improving Reliability
Poor performingPoor performing
circuit alongcircuit along
busy, narrowbusy, narrow
road with littleroad with littleR/W spaceR/W space
Option 1Option 1 URDURD
Cost $1MMCost $1MM Option 2Option 2
Spacer Cable,Spacer Cable,
SignificantSignificant
improvement inimprovement inreliabilityreliability
Cost $300kCost $300k
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Lower Project Costs: Power Plant
1212circuitscircuits
CostCost
$2MM$2MM
URDURD
optionoption
$7MM$7MM
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Lower Project Costs: Power plant exits in urban setting
Bare Wire not feasibleBare Wire not feasible
Triple circuit through alleywayTriple circuit through alleyway
Savings over URD option = several million $$Savings over URD option = several million $$
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Lower Project Costs: 4kV conversion to 15kV
Bare wire presented NESCBare wire presented NESC
clearance issuesclearance issues
URD estimate = $4MMURD estimate = $4MM Spacer = $300k totalSpacer = $300k total
Converted in 4 weekendsConverted in 4 weekends
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Lower Project Costs: lake crossing
Option 1Option 1
submarine cablesubmarine cable
cost $1MMcost $1MM Option 2Option 2 buildbuild
around shorelinearound shoreline
cost $800kcost $800k
Option 3Option 3 -- SpacerSpacer
cable 1,600cable 1,600 spanspan
cost $75kcost $75k
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Lower Project Costs
The cost of covering the cable can be easilyThe cost of covering the cable can be easilyoffset with real world concerns such asoffset with real world concerns such as
ROW acquisition concerns, project approvalROW acquisition concerns, project approval
costs, reduced need for poles, less clearancecosts, reduced need for poles, less clearanceissues, and more direct routes.issues, and more direct routes.
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Lower O&M
Costs
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Lower O&M Costs: Reduced Outages
TemporaryTemporaryTree contactTree contactdoes notdoes notcause outagescause outages
SystemSystemstrength keepsstrength keepsthe circuitthe circuitoperatingoperating
Wildlife willWildlife willnotnot shortshortoutout thethesystemsystem
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Lower O&M Costs: reduced outages
024
68
1012141618
T
ree
A
nimal
L
ightning
O
ther
Open Wire
Spacer Cable
Spacer Cable reduces non equipment related outages by 75%
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Lower O&M Costs: Less Tree Trimming
Conventional Bare Wire Hendrix Spacer Cable
Compact construction, placement flexibility, and the ability to withstand
temporary ground contact reduces the amount of branches that must betrimmed and extends trim cycles. Savings = 50%-80%
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Lower Operating Costs: Voltage Drop Problem
Long runLong run start upstart upvoltage problem withvoltage problem withlarge electric motorlarge electric motor
Option 1Option 1-- rereconductor withconductor with954kcmil bare wire954kcmil bare wire
VoltageVoltagefluctuation =fluctuation =6.97%6.97%
MinimumMinimumVoltage = 112.7Voltage = 112.7
Option 2Option 2 spacerspacer
VoltageVoltagefluctuation =fluctuation =4.79%4.79%
MinimumMinimumvoltage = 116.9voltage = 116.9
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Lower O&M costs: Reduced Voltage DropThe close spacing of theThe close spacing of thephase conductors results inphase conductors results in
lower total line impedancelower total line impedanceand reduced voltage dropand reduced voltage drop
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Lower O&M Costs: $/mile
$?$?$?$?Reliability penaltiesReliability penalties
$5830$5830$1780$1780Total Annual SavingsTotal Annual Savings
$430$430$430$430Voltage drop (20%Voltage drop (20%
load)load)
$3000$3000$750$750OutagesOutages
$2400$2400$600$600Tree TrimmingTree Trimming
Worst 20%Worst 20%
of the circuitsof the circuitsTotalTotal
SystemSystem
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Public Relations and Green
InitiativesLess vegetation removal
Reduced Tree trimming
Less outagesImproved Aesthetics
Improved power quality
Wildlife protectionAvoiding sensitive areas
Lower Carbon Footprint
Recyclable material
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Public Relations: Power Quality
CableCable
coveringcoveringprotectsprotects
circuitcircuit
fromfrommomentarymomentary
outagesoutages
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Green Initiatives: Avoiding sensitive
areasThe ability to span long
distances makes it easy tocross freeways, lakes,
marshes, gorges, etc
Poles can be
placed tominimize
disruption to the
environment
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Green Initiatives:Protecting raptors and wildlife
Cable coveringCable covering
eliminates areaseliminates areas
where animals canwhere animals can
be electrocutedbe electrocuted
between phases orbetween phases or
phase and groundphase and ground
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All Hendrix polymerAll Hendrix polymercomponents are made ofcomponents are made of
100% No.2 HDPE100% No.2 HDPE
Recyclable PlasticRecyclable Plastic
Reducing your right of
way clearance by 20 feet
for one mile can result inup to 6.5 tons of carbon
dioxide being removed
from the atmosphere everyyear
Green Initiatives:
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Hendrix Support Services
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Hendrix Support Services
Spacer Cable AccessorySpacer Cable Accessorystock is maintained atstock is maintained atHendrixHendrix
Spacer Cable installationSpacer Cable installationequipment is availableequipment is availablefor rental or salefor rental or salefreefreeto first time usersto first time users
Hendrix will kit cable and
accessories for shipment to
the jobsite.Cut to length cable saves
installation time and
reduces scrap, saving 10%
or more on project costs.Inventory and
warehousing costs can be
eliminated, saving up to
17% of the cost of thematerial.
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Hendrix Support ServicesDesign SupportDesign Support: Hendrix will work: Hendrix will work
with your Engineers to help designwith your Engineers to help designyour Spacer Cable Systemyour Spacer Cable System--free.free.
Conductor sizing, pole loading,Conductor sizing, pole loading,layout, sag and tension, guying,layout, sag and tension, guying,protection, BOM, cost estimates,protection, BOM, cost estimates,and installation equipment needs.and installation equipment needs.
Training and Advisory Services. We
will work with your planners,
designers, line crews or contractors-
on line, in the classroom, or in thefield. First time users are provided
with on site installation advisory
services free of charge.
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Hendrix Support Services
Application FlyersApplication Flyers::Helps determine where Spacer Cable can addHelps determine where Spacer Cable can add
the most value on your systemthe most value on your system
Product CatalogProduct Catalog:: Details on each componentDetails on each component
Design GuideDesign Guide:: Technical information for the System DesignTechnical information for the System DesignEngineerEngineer
Installation Guides and VideoInstallation Guides and Video:: Step by step instructionsStep by step instructionson how to install a Spacer Cable Systemon how to install a Spacer Cable System
Construction DrawingsConstruction Drawings:: Standard pole top drawings withStandard pole top drawings withlayout dimensions and bill of materiallayout dimensions and bill of material--for putting directlyfor putting directlyinto your standards.into your standards.
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Hendrix Support Services
Design-Build full turnkey capabilities
Site evaluationSite evaluation
System designSystem design ConstructionConstruction
ManagementManagement
Quality AssuranceQuality Assurance
ProjectProject
ManagementManagementTake advantage of Hendrix 50+ years of Spacer
Cable design, application, and installation knowledge
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What is Spacer Cable?
Compact ConfigurationMultiple CircuitsSubstation ExitsLong Runs/less voltage drop
Covered ConductorWithstands temporary branch contactEliminates temporary faults
Protects wildlifeLess clearance issues
MessengerMechanical Strength
Long SpansPhysical Shield
Lightning Shield WireSystem Neutral
Greater ReliabilityLess Tree Trimming
Hendrix Spacer Cable
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Support documentation
Voltage drop:Voltage drop: See Brian Trager for calculations of voltage drop savings. He uSee Brian Trager for calculations of voltage drop savings. He used thesed theconductor size in the chart and assumed a 20% loadconductor size in the chart and assumed a 20% loadnote that the calculation is based on amperagenote that the calculation is based on amperage
so savings will go up with the square of the current.so savings will go up with the square of the current.
Tree Trimming: Assumes $1200/mile and a 50% savingsTree Trimming: Assumes $1200/mile and a 50% savings
Outages: Assumes a $2000 cost per outage (office, truck and creOutages: Assumes a $2000 cost per outage (office, truck and crew prep,w prep,
travel, on site, etc). Assumes 0.5 outages per mile per year antravel, on site, etc). Assumes 0.5 outages per mile per year and a 75%d a 75%reduction in outagesreduction in outages