HomeMy WebLinkAboutCopper Valley Electric Association 3-1991COPPER VALLEY ELECTRIC ASSOCIATION, INC.
P.O.BOX 45 GLENNALLEN, ALASKA 99588-0045
Glennallen (907) 822-3211
Valdez (907) 835-4301
Telefax # (907) 822-5586 . RECEIVED
MAR 02 1991
March 6, 1991 ALASKA ENERGY AUTHORITY!
Mr. Rick Collins
Valdez Terminal Manager
Alyeska Pipeline Service Co.
Post Office Box 300
Valdez, Alaska 99686
Dear Mr. Collins:
The following is Copper Valley Electric Association's (CVEA)
preliminary proposal to extend service to the Alyeska Terminal in
Valdez, Alaska. This proposal is to be used as a basis for
beginning discussions on an Alyeska intertie to the Solomon Gulch
Project.
It is our hopes that Alyeska can work jointly with CVEA, the Alaska
Energy Authority, and the City of Valdez to bring this project to
fruition. No single project that CVEA has studied has the
potential to benefit the Association and the local communities as
much as this project. We look forward to a mutually beneficial
relationship with Alyeska through this project.
This proposal is intended to establish some preliminary parameters
for an energy exchange scenario. As you are aware, a final
agreement must have CVEA Board, Alaska Energy Authority, and
ultimately the Alaska Public Utilities Commission approval.
If you have any questions concerning this proposal, please do not
hesitate to call Mike Easley, Manager of Engineering, or me.
Sincerely,
R.D. (Doug) BurSey
General Manager
SERVING MEMBER-OWNERS IN THE COPPER RIVER BASIN AND VALDEZ
COPPER VALLEY ELECTRIC ASSOCIATION, INC.
Ronald D. Bursey, General Manager
Glennallen, Alaska
PERMANENT SERVICE
TO ALYESKA TERMINAL
‘Valdez, Alaska
March, 1991
Report Prepared by:
Michael E. Easley, PE
Section
I.
Il.
Ill.
IV.
V.
Vi.
Vil.
VIII.
IX.
TABLE OF CONTENTS
Introduction
System Overview
Impacts to Alyeska
Proposed Additions
Cost Analysis
Project Estimate
Solomon Gulch Hydro Substation
Solomon Gulch Substation Estimate
24.9 KV Distribution Line
24.9 KV Distribution Line Estimate
Alyeska Terminal Substation
Alyeska Terminal Substation Estimate
13.8 KV Distribution Line
13.8 KV Distribution Line Estimate Q > o a CVEA/Alyeska Dispatch Model
System One Line
CVEA Reliability Comparison
Proposed One Line
Plan View
Solomon Gulch Substation Additions
Agency Correspondence
Structure Drawings
Alaska Energy Authority Correspondence
City of Valdez Correspondence oO
Alyeska Permanent Service
March 1991 Page 1
1. INTRODUCTION
In February of 1991, Copper Valley Electric Association (CVEA) was requested by
Alyeska to estimate costs to provide temporary service to the Valdez terminal facilities.
CVEA was informed that the cost of providing this temporary service ($760,848)
exceeds the cost of providing on site temporary generation (reported to be $450,000). .
Based upon this information, CVEA has investigated its options in providing a
permanent interconnection to Alyeska. Unlike a temporary service, CVEA would be
able to share a portion of the costs under a permanent scenario. CVEA has been
developing a long range planning strategy in an attempt to stabilize or even reduce
ever increasing electrical rates. A connection to Alyeska in which energy was
exchanged between the two systems would serve to benefit all the parties involved.
CVEA would propose an energy exchange agreement with Alyeska and the Alaska
Energy Authority (AEA). In this scenario Alyeska would be furnished with 7MW of
power during the periods of excess Hydro capacity. This is typically June through
August. In return, CVEA would take 4 MW of power during periods of limited Hydro
capacity. This is typically October through April.
The arms length arrangement between CVEA and Alyeska would involve AEA facilities.
AEA wholeheartedly supports the tie. It also provides Alyeska with the comfort of
removing any possible Alaska Public Utilities Commission (APUC) involvement.
A graphical representation of this energy dispatch is shown in Exhibit 1. This energy
exchange program would enable CVEA to eliminate the use of costly oil fired
generation and would allow Alyeska to receive power at no cost during the summer
months. This would be especially beneficial during the times Alyeska may require
additional temporary on site generation for turbine maintenance. The most beneficial
aspect of this arrangement is that Alyeska would have a completely independent
source of stand by generation. Since CVEA has almost 30 MW of capacity and a load
less than one third of its capacity, Alyeska would have almost 20 MW’s of stand by
power at its disposal.
The information presented in the remainder of this proposal will provide preliminary
details concerning CVEA’s existing system, the proposed facilities, and the proposed
energy exchange scenario.
Alyeska Permanent Service
March 1991
Page 2
ll. SYSTEM OVERVIEW
CVEA has 29.65 MW of generation at its disposal. Of this approximate 29.65 MW’s
of generation, 12 MW is Hydro, 7.64 is Glennallen Diesel, and 10.01 is Valdez Diesel.
Each of these power plant facilities are interconnected through a distribution and
transmission system. CVEA utilizes a 106 mile, 138 KV transmission line to
interconnect the Valdez and Glennallen systems. A complete one-line diagram of the
CVEA system is provided as Exhibit 2.
CVEA maintains a high degree of system reliability through an aggressive maintenance
program and continued improvement in control equipment, including relaying and
System Control And Date Acquisition (SCADA) systems. CVEA has upgraded all of
its SCADA equipment and transmission relays to current state of the art systems.
CVEA has achieved statewide recognition for system reliability as mentioned in several
Alaska Energy Authority Studies (see Exhibit 3).
Alyeska Permanent Service
March 1991
Page 3
Ill. IMPACTS TO ALYESKA
Providing an interconnection to Alyeska is an important goal for CVEA. (AEA and
CVEA are considered as a unit and hereafter referred to only as CVEA.) It is an
opportunity to further the Association’s goals of providing service to its members.
Alyeska and CVEA share a major concern for the Valdez and Copper Basin areas. As
CVEA is concerned for its members, Alyeska is concerned for its employees and the .
community in which they live. The direct benefits related to the energy exchange are
relatively easy to quantify, yet the benefits to the various communities from this project
are less easily quantified but could actually outweigh the direct benefits.
Reliability is of high concern to CVEA, especially when considering current world
events. The varied power plant locations, as well as the excess capacity, establishes
a high reliability component in relation to generation resources. During the summer
each year, CVEA has an excess of Hydro energy, resulting in the ability to serve the
Alyeska and CVEA load from the Hydro. The diesel generation resources can also be
utilized to meet energy requirements in the unlikely event either one or both of the
Hydro units were to experience problems. In essence, CVEA has four independent
generation sources available, of which any two could carry the entire CVEA and
Alyeska loads.
The transmission and distribution systems are also important components of the
electrical system. The proposed line route following the existing pipeline route is free
from avalanche hazards. Exposure to weather related outages would be virtually
nonexistent due to the length and location of this line. This situation serves to enhance
the reliability of the system. The weakest link in the service to the Terminal becomes
the distribution line from the Hydro to the Terminal. The security of this line could be
an issue; however, CVEA feels that the location of the proposed line on the pipeline
corridor will ensure adequate security through pipeline patrols. It should be just as
secure as any exposed portion of the pipeline. Even if the line were to experience a
problem, CVEA crews are available on a 24 hour basis to make repairs. Typically,
crews are able to restore power within hours, even when pole replacement is
necessary.
Generation related outages are typically restored within 30 minutes. This time frame
would be reduced for the Alyeska load, since Alyeska would be given top priority.
When considering the varied generation sources, the historical performance of the
CVEA system, and secure routing, CVEA feels the proposed line is a viable source
of dependable power. Historical performance can also be measured through
Alyeska Permanent Service
March 1991
Page 4
documentation established to satisfy the United States Air Force during their
investigation in connection with the Over the Horizon Backscatter facility (OTH-B).
Service performance was 99.1 percent or CVEA service was available 99.1 percent of
the time. CVEA chose not to continue pursuing the OTH-B service because direct
benefits to CVEA members in rate reductions were not significant, even though
secondary benefits may have been realized.
Alyeska Permanent Service
March 1991
Page 5
IV. PROPOSED ADDITIONS
Service to Alyeska requires substation additions to the Solomon Gulch Hydro, 2.8
miles of 25 KV distribution line, a 24.9 KV Wye/13.8 KV Delta substation, and 1.5 miles
of 13.8 KV distribution line. A one-line diagram of the proposed additions is provided
as Exhibit 4.
The additional bay required at the Hydro substation will include adequate protective
systems to insure that system disturbances will not damage equipment at Solomon
Gulch or at the Alyeska Terminal. Protection systems, at a minimum, should be
designed for a radial feed distribution line; however, the need of the Alyeska system
to operate in parallel with the CVEA system during project energization and de-
energization requires the use of sync check capabilities, and possibly SCADA control,
of one or more breakers or reclosers.
Energy exchanges will be metered at the Solomon Gulch location.
The 24.9 KV distribution line required to deliver power from the Solomon Gulch Hydro
to the Alyeska Terminal will be 336.4 MCM ACSR. This conductor is capable of
delivering up to 21 MW’s of three phase power. Its choice as a conductor is primarily
made upon its mechanical and loading characteristics. There will not be any pole
grounds installed along the length of the distribution circuit. This will preclude the
chance of coupling with the corrosion protection systems of the pipeline. It is
desireable to leave the various ground systems independent of each other; therefore,
a fourth wire will not be necessary on the distribution line.
The stepdown substation necessary at the Alyeska Terminal site will transform the
voltage from 24.9 Wye to 13.8 Delta. The 24.9 system will be an ungrounded Wye
system to eliminate the possibility of ground fault contributions between the facilities.
The desire to keep the systems ungrounded is warranted when considering coupling
of the ground and corrosion control systems and fault current contributions. Operating
in an ungrounded system does complicate the transformer selection. When operating
in a grounded system, the transformer windings never see a voltage in excess of the
nominal phase to neutral voltage; however, in an ungrounded system, the winding
voltages can approach the phase to phase voltage levels. This precludes the use of
standard transformers with reduced voltage windings. Common to the industry are
13.8 to 24.9 generator step up transformers; however, the typical transformer size for
this type of application is in the order of 50 MW. This proposal includes the purchase
of four (4) 2500 KVA transformers with full voltage windings.
Alyeska Permanent Service
March 1991
Page 6
This proposal includes a 13.8 KV distribution line to be located entirely on Alyeska
property. It is proposed to be primarily an overhead line with one section of .
underground. The line will begin at the substation and will proceed to the existing
13.8 KV main distribution bus. Alyeska may desire to locate this circuit in above
ground ducts; however, CVEA is not prepared to operate or maintain a facility of this
nature.
Estimates are provided for the various portions of the system required to provide
service. A proposed system one line is shown in Exhibit 4, and a plan view of the
entire project is shown in Exhibit 5.
Alyeska Permanent Service
March 1991
Page 7
V. COST ANALYSIS
CVEA Engineering has reviewed the project requirements to prepare an Engineer’s
Estimate for the completion of the work. Careful review was made of site conditions,
as well as general system requirements. CVEA has prepared an estimate for this
project of $760,848 which includes estimated installation costs and a 10% contingency.
The estimate further assumes that Alyeska will provide the excavation for the proposed
underground cable.
CVEA would be prepared to pay for one-half of this project’s cost. This would mean
that Alyeska would pay $380,424. This appears to be less than the costs of providing
temporary on site generation. Alyeska would gain by having permanent service during
plant shutdowns. Timing of outages for Alyeska generation could be lengthened to
reduce overtime costs.
Alyeska could gain a permanent source of standby generation for costs less than that
of providing a one time temporary service. The additional benefit is that under the
energy exchange proposal, Alyeska is able to utilize energy with little or no cost.
Since Alyeska would be providing a small energy requirement to CVEA over several
months, it would be able to do so with only incremental costs. During the summer
when GVEA was providing a large block of power to Alyeska, significant reductions
could be made in the amount of on-site generation required. The energy provided to
CVEA would be incrementally inexpensive, while the energy provided by CVEA would
offset more expensive power.
This scenario can be viewed as an energy banking arrangement. The project banks
excess Hydro energy during the summer months, and Alyeska banks energy during
the winter months. Under this scenario, this type of energy exchange is exempt from
regulation under AS 42.05.711.
Energy in to and out of this banking pool would be netted each year. The excess
energy, if any, will be 6.4 cents per kwh to Alyeska, and Alyeska would be paid 5.4
cents per kwh for excess flows to CVEA. The 1 cent difference is the cost of Solomon
Gulch operations and losses.
A cost summary follows which breaks down the costs into the various stages of the
project. The following sections of this proposal provide a detail description of the
individual stage, as well as a detailed estimate of the work.
Alyeska Permanent Service
March 1991
Page 8
SOLOMON GULCH TO ALYESKA DISTRIBUTION LINE
ESTIMATE FOR ENTIRE PROJECT
STATION ADDITIONS SOLOMON GULCH TOTAL
2.8 MILES DISTRIBUTION LINE 24.9 KV, WYE TOTAL
TERMINAL SUB. 24.9 WYE/13.8 DELTA TOTAL
1.5 MILES DISTRIBUTION LINE 13.8 KV, DELTA TOTAL
PROJECT TOTAL
CVEA PARTICIPATION
ALYESKA PARTICIPATION
$ 53,350.
$294,877.
$277,530.
$135,091.
760,848.
$380,424.
$380,424.
Alyeska Permanent Service
March 1991
Page 9
VI. SOLOMON GULCH HYDRO SUBSTATION
Modifications required at the Hydro will be completed on the west end of the
substation. The recommended method is to add a breaker (or OCR) in the spare bay.
New bus will be installed over the existing bus and routed to the west end of the
existing steel. Attachments will be made to the existing steel, and a span to a wooden
dead-end structure will be installed. Protection for a radial distribution feeder is
typically fuses; however, in this case, sync capabilities are required, so a breaker will
be added to ensure adequate system protection.
Meters will need to be able to measure IN/OUT KWH, KW, KVAR. JEM | electronic
metering will be used.
The drawings found in Exhibit 6 indicate the proposed changes required in order to
provide for the additional bay.
Alyeska Permanent Service
March 1991
Page 10
SOLOMON GULCH TO ALYESKA DISTRIBUTION LINE
ESTIMATE FOR SUBSTATION ADDITIONS (SOLOMON GULCH)
ITEM QTY COST EXTENDED
BREAKER or OCR 1 $25,000. $25,000.
BUSWORK 1 ; 5,000. 5,000.
RELAYING 7 10,000. 10,000.
MOBILIZATION 1 2,500. 2,500.
ENGINEERING 1 6,000. 6,000.
TOTAL $48,500.
ADD CONTINGENCY 10% 4,850.
STATION ADDITIONS SOLOMON GULCH TOTAL $53,350.
Alyeska Permanent Service
March 1991
Page 11
Vil. 24.9 KV DISTRIBUTION LINE
The 2.8 miles of distribution line would begin on the west side of the Hydro facility.
It would then proceed adjacent to the Penstock. The routing would follow the
penstock to the crossing of the pipeline, where the line would then run parallel with
the pipeline to the terminal facilities. There is considerable rock in the area. In lieu
of using explosives to open holes, it is proposed that pole sockets be installed. This .
consists of a pipe anchored to the rock in which the butt of the pole is placed.
Line construction would consist of REA approved VC-1 series assemblies. Crossarms
will be ten foot in length. This has an additional advantage of being a RAPTOR safe
design. The base poles would be 40 feet in length. Anchors would be rock anchors
and plate anchors as required. Spans would average 275 to 350 feet in length.
Conductor will be 336.4 ACSR. This conductor has adequate amperage.
Right of way clearing would be limited to danger trees.
A right of way permit will be required from the State of Alaska to allow CVEA the use
of the pipeline corridor for the distribution line. State Agencies have been contacted,
and the ability to utilize this route seems likely. A copy of the correspondence relating
to the right of way is found in Exhibit 7.
Structure drawings can be found in Exhibit 8.
Alyeska Permanent Service
March 1991
Page 12
SOLOMON GULCH TO ALYESKA DISTRIBUTION LINE
ESTIMATE FOR 2.8 MILES DISTRIBUTION LINE
24.9 KV UNGROUNDED WYE
ITEM QTY COST EXTENDED
40-2 POLES 30 $ 905. $27,150.
45-2 POLES 20 1,376. 27,520.
VC1-A POLE TOP 40 205. 8,200.
VC7 POLE TOP 5 300. 1,500.
VC8 POLE TOP 5 400. 2,000.
GUYS 40 80. 3,200.
ANCHORS 40 400. 16,000.
VM-F1 30 2,000. 60,000.
336.4 ACSR 50,000 2 100,000.
PUSH SUPPORTS 10 750. 7,500.
CLEARING 1 2,000. 2,000.
MOBILIZATION 1 / 5,000. 5,000.
ENGINEERING 1 8,000. 8,000.
TOTAL $268,070.
ADD CONTINGENCY 10% 26,807.
2.8 MILES DISTRIBUTION LINE 24.9 KV, WYE TOTAL $294,877.
Alyeska Permanent Service
March 1991
Page 13
Vill. ALYESKA TERMINAL SUBSTATION
The Terminal substation consists of a step down transformer to transform voltage from
24.9 KV Wye to 13.8 KV Delta. It is proposed that the transformation be accomplished
through the use of three 2500 KVA single phase transformers. The substation
structure will be constructed of wood poles and crossarms. The transformers will be
placed on concrete foundations. The high side of the transformer bank will be .
protected by fuses, and the low side will be protected with an OCR. The OCR will
be remotely operated via CVEA SCADA. It is assumed that Alyeska will provide cable
pairs for the communication circuit. It will also have sync capabilities. Metering will
be accomplished with IN/OUT KWH, KW, KVAR quantities recorded with a JEM
electronic meter. :
The substation site will have to be 70’ x 100’. A fence will also be installed in
accordance with the latest NESC codes. It will be 7’ high and topped with three
strands of barb wire.
Alyeska Permanent Service
March 1991
Page 14
SOLOMON GULCH TO ALYESKA DISTRIBUTION LINE
ESTIMATE FOR TERMINAL SUBSTATION
24.9 WYE/13.8 DELTA
ITEM QTY COST EXTENDED
STRUCTURE/FENCE 1 $30,000. $30,000.
DISCONNECT SWITCH “ 1,200. 4,800.
OCR 1 20,000. 20,000.
HIGH SIDE FUSES 1 5,000. 5,000.
METERING 1 6,000. 6,000.
TRANSFORMERS a 40,000. 160,000.
GROUND GRID 1 3,000. 3,000.
SITE/FOUNDATIONS 1 15,000. 15,000.
MOBILIZATION 1 2,500. 2,500.
ENGINEERING 1 6,000. 6,000.
TOTAL $252,300.
ADD CONTINGENCY 10% 25,230.
TERMINAL SUBSTATION 24.9 WYE/13.8 DELTA TOTAL $277,530.
Alyeska Permanent Service
March 1991
Page 15
IX. 13.8 KV DISTRIBUTION LINE
The 13.8 KV distribution line will carry power from the Alyeska Terminal substation to
the 13.8 KV main distribution bus. It will be mainly overhead, but it will have one
section of underground in an area frequented by large cranes.
Standard CVEA practice is for consumers to open ditches for underground .
installations. This estimate assumes Alyeska will provide the ditch for underground
facilities.
The line will generally follow on the north side of the access road that runs between
the crude oil storage tanks and the ballast tanks. It will proceed down to near the
end of the tank farm and on to its terminus at the Alyeska 13.8 KV switchgear building.
This line may be replaced by Alyeska with cable trays at some future date. CVEA
would be willing to remove the line, at Alyeska’s expense, if the replacement occurs.
Alyeska Permanent Service
March 1991
Page 16
SOLOMON GULCH TO ALYESKA DISTRIBUTION LINE
ESTIMATE FOR 1.5 MILES DISTRIBUTION LINE
ITEM
40-2 POLES
45-2 POLES
VC1-A POLE TOP
VC7 POLE TOP
VC8 POLE TOP
GUYS
ANCHORS
VM-F1
336.4 ACSR
PUSH SUPPORTS
CLEARING
URD CABLE
MOBILIZATION
ENGINEERING
1.5 MILES DISTRIBUTION LINE 13.8 KV DELTA TOTAL
13.8 KV DELTA
QTY
15
10
21
24 24
24,000
1500
ADD CONTINGENCY 10%
COST
$ 905. 1,376. 205. 300. 400. 80. 400. 2,000. 2. 750. 2,000. 10.
2,500.
3,000.
TOTAL
EXTENDED
$13,575. 13,760. 4,305. 600. 800. 1,920. 9,600. 4,000. 48,000. 3,750. 2,000. 15,000.
2,500.
3,000.
$122,810.
12,281.
$135,091.
KW (Thousands)
ALYESKA DISPATCH MODEL
POSITIVE TO ALYESA, NEGATIVE TO CVEA
La tt er 1
oF NRW FP ITI DN CO WO =
Se ee ee ee 1/1/90
ALYESKA GEN.
2/26/90
4/23/90
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6/18/90 8/13/90
——— CVEA DIESEL
\ en
10/8/90 12/3/90 1/28/91
—— SOLOMON EXCESS
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COPPER VALLEY ELECTRIC ASSOCIATION INC. CLENNALLEN 822-2211 VALDEZ 835< 4301 MN GULCH ONE-LINE DIAGRAM, F E
GLENNALLEN, AK. 99588 VALDEZ, AK. 99686
ALYESKA
COPPER VALLEY
GLENNALLEN 822-3211 P.O. BOX 45 GLENNALLEN, AK. 99588
OLOMON , LAKE
ELECTRIC ASSOCIATION — INC.
VALDEZ 835-4301 P.O. BOX 927 VALDEZ, AK. 99686
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REVISIONS ENGINEERING KECORD I SOLOMON GULCH COPPER VALLEY ELECTRIC ASSOCIATION, INC. SUBSTATION DETAILS
DESIGNER FTSPERSON P.O. BOX 45 5 . Trai GLENNALLEN, ALASKA 99588 PROPOSED ADDITIONS FOR ALYESKA TIE
ee DRAWING NUMBER CHECKED APPROVED Pee eee Pir nak teres UVALDE VeL ULL VAT
COPPER VALLEY ELECTRIC ASSOCIATION, INC.
PO BOX 45 = GLENNALLEN. ALASKA 99588-0045
; Glennalien (907) 822.3211
Veldez (907) 835-4301
® Telefax # (907) 822-5586
February 1, 1991
Mr. Mike Sullivan
State of Alaska
Department of Natural Resources
Division of Land and Water Management
Pouch 7-005
3601 C Street
Anchorage, AK 99510-7005
Subject: Permit for Right-of-Way on State Land between Solomon
Gulch Hydro and the Alyeska Pipeline Terminal
Dear Mr. Sullivan:
Copper Valley Electric Association, Inc. (CVEA) is proposing to
construct a 24.9 KV distribution line between the Solomon Gulch
Hydro facility and the Alyeska Pipeline Terminal. This line would
provide electrical service to the Pipeline Terminal.
We have discussed this project with Dennis Prendeville, of Alyeska.
He has indicated that they will be able to issue a letter of
nonobjection. The proposed distribution line would parallel the
Pipeline and be located approximately 75' north of the Pipeline
centerline. We would propose to follow the edge of the cleared
right-of-way to preclude any timber clearing, with the exception
of a few danger trees that could fall into the line.
The line would originate at the Solomon Gulch powerhouse and would
follow on the west side of the Penstock to the point where the
Penstock crosses the Pipeline. It would then turn and follow the
Pipeline until it reaches the Alyeska Pipeline property.
The project presents several benefits to CVEA, and therefore the
residents of Valdez and the Copper Basin. The pote-tial increase
in electrical sales of otherwise spilled Hydro energy will help
reduce the impact of high fuel costs associated with the Gulf War.
The potential for future energy exchanges could reduce the
electrical rates for our consumers as much as three to five cents.
This is quite a benefit to our members who currently pay almost
20 cents per kwh.
SERVING MEMBER-OWNERS IN THE COPPER RIVER BASIN AND VALDEZ
Permit for Right-of-Way
February 1, 1991
Page 2
At this early point, I am hoping for a quick assessment as to the
"permitability" of this project. We have a need to begin
construction in April 1991 and are concerned with timing of the
right-of-way permit. We would certainly be able to meet with you
in person, if such a meeting would be a means to help the permitting process. I certainly appreciate your assistance with
this project, and I hope to be hearing from you soon.
THU bebe
Michael E. Eas
Manager, Engineering Services
Attachment
cc: File
c:\wp\me\91-009. jw
Notes:
|. See drawing VE5-1 for crossorm loading limitations.
2 Designate os VC7-I for assembly with three crossarms.
ITEM|NO. MATERIAL Iirem|no | MATERIAL | | d_|13 |Wosher, squore, 2 U4" [[n_| 3 [Bot, double orming, 5/8"x req'd. length |_| | 2 |Crossorm, 3 V2"x 4 V/2"x 8-0" o | 1 |Bolt, eye, 5/8"x reqd. length
CU | 4 |Broce, wood, 28" | oo | 2 |Nut, eye, 5/8" pa
i .| 4 |Bolt, carrioge, 378" x 4 V2" co | 3 [Deodend cssembly, prima:
Screw, log, V/2"x 4" cc Deodend assembly, neutral
Pe Insulator, suspension, 10" | [lek | |Locknuts
Bolt,eye, double arming 5/8"
44/249 KV, 3- PHASE ;
CROSSARM CONSTRUCTION- DEADEND (SINGLE )
Jonl,1963
Position of Guy
when req'd.
Specify VCIA for PLAN
offset neutral assembly
TEM | NO. MATERIAL litem NO. MATERIAL
co | 3 |msulotor, pin_type ll cu_| 2 |Broce, wood, 28"
pe Pin, pole top, 20" i__| 2 [Bon __corrioge, 3/8" 4V2
Bolt, machine, 5/8'x req'd. length j | |Screw, og, V2"x 4", (VCl only)
pe Wosher, $4 vore 2 1/4" |_|Bolt, single upset, insulated (VC! only) -—
itpeeeeate —t fet bee ees pat Crossorm, 3 V2" x 4 We'x 8'-0' Bracket, offset, insulated (VCIA only) ps
“ 14.4/24.9 KV, 3-PHASE
CROSSARM CONSTRUCTION- SINGLE PRIMARY SUPPORT O° TO 5* ANGLE
Cl,VCIA
i
oy’
+
SECTION X-X ‘PLAN
a MATERIAL : MATERIAL
| bo | 2 |Shackle, anchor
m [ca |6 peadend assembly, primary LU
ossarm, 342" x 4¥2"x8'- 0" + ee 2 Deadend assembly, neutral SANIT
insulator, suspension, 10" | race, wood ma a span HE
E i "x req'd leng —] pee
14.4/249 KV.,3- PHASE
CROSSARM CONSTRUCTION-DEADEND (DOUBLE)
ALIN iii Pal iB
NOTES:
|. When two guys ore ottoched to one anchor rod
use 3/4"x 8-O" twin thimble type eye rod.
2. Spacing between anchors shall be sufficient to provide maximum holding power for each anchor.
3. For loose soils, concrete or other pole footings are recommended.
4. Refer to Owgs. VE3-2 and VE3-3 for details of Wrapped guy when used in place of through bolt type guy shown in this drawing.
5. Arcing horns shown dotted may be installed as required for pole protection.
For detoils of arcing horns
refer to drawing VMIO- 14.
6. Other occepted and equivalent
Item u deadend moterial moy be
substituted for 3-bolt clamps shown. , * 8 * i a a fn A ergo rT aod 3/8" Strand
7/16" Strand I'- 6" MATERIAL
Bolt, machine, 5/8"x req'd. length wire, S.M.,7 strand
sher, square, 2 1/4" Clomp, guy bond, os required
Deadend for guy strond, heavy duty onnectors, as req'd.
Guy ottechment,(heavy duty for VE6- Jumpers, OS required
ocknuts
14.4/249 KV
DOUBLE DOWN GUY
VEI-3
This may be substituted
for wrapped type guy
_Moximum ofter provided guy tension
strain Is opplied will not exceed 8500 Ibs.
Other accepted and equivolent
(item u) dead-end material
may be substituted for the
ones shown.
ASSEMBLY UNIT
VEI-1 VEI-2 VEI-3
V4" Guy Wire| 3/8" Guy Wire | 716" Guy Wre
MATERIAL _ [N& REQ'D. |N& REQ'D. | N& REC'D.
Bot, machine, 5/8"x required length
p | Connectors, os required
Deadend for strand
Guy wire, S.M., 7 Strond : req'd. length
Clomp, anchor rod bonding Hlelel> |e Nn itr = Light Dut
reqd. TT Pe CUT) 14.4/24.9 KV.
SINGLE DOWN GUY, THROUGH BOLT TYPE | | OO faaeel ___ [WELWEFBVERS
Approx. ofter stroin is opplied
Size of hole to be some os onchor
Approx. ofter
strain is
applied
SCREW
FI-IC, FI-2C, FI-3C, FI-IS, Fl-2S, Fl-3S, FI-4S
Approx.after
strain is
Size of hole to
be some os un-
expanded anchor.
EXPANDING
Fl-1, Fl-2, FI-3,-Fl-4
Note: Projection of anchor rods above earth
Approx. after strain is
applied
PLATE
moy be increased to a mox. of !2"in FI-IP, FIl-2P, FI-3P, FI-4P
cultivoted fields or other locations
where necessory to prevent burying
of the rod eye.
ASSEMBLY UNIT
( Sto'e oO ACHkO
DS | Woe’. mcKe Governs’
Alaska Energy Authority
APydlic Corporation
February 8, 1991
Mr. rag Bursey Copper Valley Electric Association, Inc. P.O. Box 45
Glennallen, Alaska 99588-0045
Dear Mr. Bursey:
The Solomen Guich-Alyeska 24,9 kV Intertie line appears to be a good project to pursue and construct. I agree that this has benefits for
both systems, even though Alyeska is requesting temporary service for
June 1991.
As we discussed, Copper Valley Electric Association, Inc. (CVEA) wil} provide the proposal to Alyeska and coordinate the project. If Alyeska accepts the proposal, CVEA will then hire a consultant agreeable to AEA to design the project from the Solomon Gulch Hydroelectric Plant to the Alyeska Pipeline terminal. The construction of the line will be under CVEA control. The Authority will want to approve the design for the Solomon Gulch substation modification and concur with the remainder of the project so all involved and effected by this project will understand what is to be installed and how it works. As stated, the project needs
to provide for reliability as well as capacity, and insure that Solomon Guich Hydro and the terminal are protected from inadvertent system problems to the best of our capability.
Remy Williams will be the contact for the Energy Authority for this project, assisted by Afzal Khan and myself. We will be available to help where we can.
I hope this project moves ahead and succeeds so long-term goals can be realized.
Sincerely,
Stanley EY Sieczk , Director Facilities Operations & Engineering
SES: jd
cc: Brent N. Petrie, Alaska Energy Authority Afzal Khan, Alaska Energy Authority Remy Williams, Alaska Energy Authority
G PO.BoxAM Junedu. Alaske 99841 (907) 465-3575
oe FO Pan 190869 704 Eost Tudor Road )=Anchorage Alaska 99549-0869 (907) 561-7877
February 8, 1991
Mr. Doug Bursgey, General Manager Copper Valley Electric Association, Inc.
Post Office Box 45
Glennallen, Alaska 99588
SUBJECT: Alyeska Temporary Service
Dear Mr. Bursey: :
The City of Valdez has no objections to Copper Valley Electric
Association (CVEA) routing a distribution line across City property
to serve the Alyeska Terminal.
We hope your project becomes a reality since electrical sales of
this nature serve to benefit the entire CoOp membership and
ultimately the City of Valdez. It is very encouraging to see
Alyeska and CVEA working together to reach a common goal. We hope
this relationship continues to improve in future dealings.
If we may be of further assistance, please do not hesitate to call.
Sincerely,
be Griffin
City Manager
DG:blp
P.O. BOX 307 * VALDEZ, ALASKA 89686
TELEPHONE (907) 835-4313 » TELEX 25-381 » TELECOPIER (907) 835-2982