Scope
This specification covers the minimum electrical, chemical and physical properties
required of the manufacturer for the separable, insulated connectors listed in this
specification.
1. General
Description:
100-131-006 Probe, elbow 15kV 200 amp
194-300-050 Arrester, 10kV, Parking Stand
194-300-070 Arrester, 10kV, Elbow
194-302-202 Bushing 15KV 200 amp insert load-break
194-302-204 Bushing insert 15kV 200 amp feed–thru
194-303-102 Cap 15KV 200 amp insulating protective dead end
194-303-150 Cap 15kV 200 amp insulated with test point
194-304-102 Elbow 15KV 200 amp connector kit #4
194-304-103 Elbow 15KV 200 amp w/grounding device EPR, 19 strand copper, #2
194-304-104 Elbow 15KV 200 amp connector kit #1 solid and #2 stranded
194-304-106 Elbow 15KV 200 amp connector kit 1/0
194-304-107 Elbow 15KV 200 amp connector kit for 35KV cable 1/0
194-304-108 Elbow 15KV 200 amp connector kit 4/0
194-304-110 Elbow 15KV 200 amp connector kit for 35KV cable 4/0
194-304-200 Elbow grounding 15KV 200 amp with ground clamp and 1/0 cable
194-312-102 Insulator standoff 15kV 200 amp
194-312-302 Insulator 15kV 200 amp feed-thru
194-320-455 Fuse, Submersible premolded 100A CL (MCLF)
194-320-465 Elbow 15kV 200 amp fused (30 amp) for #1 solid
194-320-466 Elbow 15kV 200 amp fused (45 amp) for #1 solid
194-322-102 Junction 15kV 200 amp 2-way
194-322-103 Junction 15kV 200 amp 3-way
194-322-104 Junction 15KV 200 amp 4-way
194-322-105 Junction 15kV 200 amp 5-way
Unit of Measure: Each
Use: Underground distribution
T03-01625
Page 2 of 9
CSU Specification 194-3
Dated 03/28/2005
Copyright © 2001 City of Colorado Springs on behalf of the Colorado Springs Utilities
2. Referenced Standards
Equipment/material covered by this specification shall be manufactured in conformance
with the following standards including all standards referenced therein. It shall also
comply with all other applicable standards of IEEE, ANSI, ASTM, NEMA, UL, and similar
industry organizations. Where conflicts occur in referenced standards, the more
stringent shall apply unless modified by this specification. The revisions in effect on the
date of the bid shall apply. The term "approved equal" shall mean approved in writing
by Colorado Springs Utilities, Engineering Standards.
2.1
Institute of Electrical and Electronics Engineers (IEEE):
2.1.1
IEEE 386 “IEEE Standard for Separable Insulated Connector Systems
for Power Distribution Systems Above 600V”, latest edition
2.1.2
IEEE 592 “IEEE Standard for Exposed Semiconducting Shields on HighVoltage Cable Joints and Separable Insulated Connectors”, latest
edition
2.1.3
IEEE C62.11 “IEEE Standard for Metal-Oxide Surge Arresters for AC
Power Circuits (>1kV)”, latest edition
3. Service Conditions
3.1
All connectors shall be suitable for operation on single and three phase 60 HZ,
wye-connected, grounded neutral systems at an elevation of 7,500 feet.
3.2
The nominal operating voltages are 7,200/12,470.
3.3
These devices will be used on underground systems where the maximum
available system fault current is 10,000 amps or less and the continuous load is
less than or equal to 200 amps.
3.4
All components shall be suitable for 200 amp continuous loading in 65 degrees C
ambient air temperature of a padmount transformer compartment with
connected cable operating at a 130 degrees C conductor temperature and with
the internal conductors of the transformer in a top oil temperature of 90 degrees
C.
4. Ratings
4.1
Ratings shall be based on standard service conditions; recommendations for
operating at unusual service conditions shall be furnished in writing.
4.2
Voltage Ratings:
4.2.1 15 kV
4.3
Current Ratings:
4.3.1 Continuous - 200 Amps
4.3.2 Short time – 10,000 A rms, symmetrical for 0.17 seconds
4.3.3 Short time – 3,500 A rms, symmetrical for 3.0 seconds
4.3.4 Fault close - 10,000 A rms , symmetrical
T03-01625
Page 3 of 9
CSU Specification 194-3
Dated 03/28/2005
Copyright © 2001 City of Colorado Springs on behalf of the Colorado Springs Utilities
5. Construction
5.1
General
5.1.1 All molded rubber products shall be of high quality EPDM rubber
compound and peroxide cured (this includes insulation and shields).
Colorado Springs Utilities reserves the right to approve sulfur cured
semiconductive layers based on certified test reports of actual production
samples.
5.1.2 Interchangeability with all other manufacturer's elbows, cable junctions,
bushings, bushing wells, bushing inserts, and protective, dead-end caps
shall meet the requirements for complete interchangeability covered in
ANSI/IEEE 386 latest edition.
5.1.3 All electrical connections (both mating and internal ones), with the single
exception of the conductor compression connector, shall be a copper-tocopper conductor path.
5.1.4 When mated with a comparably rated product, the separable
components shall provide a fully-shielded submersible connector for
loadbreak operation.
5.1.5 All separable, insulated components shall be permanently marked with
the manufacturer's identification month and year made.
5.1.6 Male contact probes
5.1.6.1 Shall be a high-strength copper alloy with minimum yield
strength of 40,000 PSI and tin plated to provide resistance to
corrosion and contact wear.
5.1.6.2 Shall be threaded with a pilot extension at the end of the thread.
5.1.6.3 The pilot extension shall be 1/8" minimum length. This pilot end
shall not create a stress concentration when installed in the
compression connector. The purpose of the pilot end is to align
the threads.
5.1.6.4 The maximum length of the threaded section including the pilot,
from the shoulder to the end of the probe shall be 0.580".
5.1.6.5 Shall have an ablative arc follower tip.
T03-01625
Page 4 of 9
CSU Specification 194-3
Dated 03/28/2005
Copyright © 2001 City of Colorado Springs on behalf of the Colorado Springs Utilities
5.2
T03-01625
Elbows
5.2.1 The conductor compression connector shall be a long barrel bimetallic
friction welded copper top that accepts copper or aluminum cable
conductors. The minimum yield strength shall be 40,000 PSI.
5.2.2 Connector barrels shall be clearly marked with conductor size, Burndy die
index and the proper number and location of crimps.
5.2.3 The cable strip-back from the end of the compression connector to the
semiconductor shall be 6-7/8".
5.2.4 All elbows shall be furnished with test points. The test point shall be
capacitively coupled to the conductor system and the shield of the
connector.
5.2.5 Fused elbows shall be provided with two test points. One at each end of
the fuse, to allow verification of fuse integrity.
5.2.6 The ratio of the capacitance between test point and shield to the
capacitance between test point and conductor system shall not exceed 12
pF.
5.2.7 The following table specifies the cable diameter range over the insulation
Colorado Springs
Item ID No.
Diameter
Range
Conductor Size
awg or kcmil
194-304-102
194-304-103
0.625-0.725
0.850-.1.050
#4cu – 15kV 7 strand
#2cu-15kV 19 strand EPR with
grounding device
194-304-104
0.665-0.725
#2 15kV aluminum 7 strand
or # 1 solid
194-304-106
0.725-0.835
1/0 15kV aluminum 19 strand
194-304-107
1.080-1.140
15kV rated for use on 1/0 35kV
aluminum 19 strand
194-304-108
0.890-0.950
4/0 15kV aluminum 19 strand
194-304-110
1.230-1.290
194-320-465
0.665-0.725
15kV rated for use on 4/0 35kV
aluminum 19 strand.
#1 solid
194-320-466
0.665-0.725
#1 solid
Page 5 of 9
CSU Specification 194-3
Dated 03/28/2005
Copyright © 2001 City of Colorado Springs on behalf of the Colorado Springs Utilities
5.2.8 The elbow kits listed below shall include 3M PST cold shrink tube, mastic
sealing strips, or Raychem RVS-14 Rayvolve sleeve with mastic sealing
strips for sealing jacketed cable.
194-304-104 Elbow 15KV 200 amp connector kit #1 solid and #2
stranded.
194-304-108 Elbow 15KV 200 amp connector kit #4/0
194-304-465 Elbow 15kV 200 amp fused (30A) for #1 solid
194-304-466 Elbow 15kV 200 amp fused (45A) for #1 solid
5.3
5.4
5.5
T03-01625
Loadbreak Bushing Insert
5.3.1
The high voltage bushing insert shall be designed for installations in
transformers, switches and other apparatus with 200 amp high voltage
bushing wells.
5.3.2
The loadbreak interface shall mate with elbow terminators and other
accessories also meeting the requirements of this specification.
5.3.3
The bushing insert shall have a high conductivity continuous all copper
or copper alloy current path from the female contact to the mating
bushing well.
5.3.4
The bushing insert shall have a method provided to install to a specified
torque or a visible indicator of being fully seated in the bushing well.
Protective Dead End Cap
5.4.1
The insulated protective cap shall be designed for temporary or
permanent installation on loadbreak bushings, portable feed-thru
junctions, and other accessories.
Loadbreak Junctions
5.5.1
Loadbreak junctions shall be designed for use in underground vaults or
padmount cabinets and other apparatus required to sectionalize or
establish loops.
5.5.2
The loadbreak junction shall have a high conductivity continuous all
copper or copper alloy current path from the female contact to the
copper bus bar.
5.5.3
The mounting bracket bolts and adjustable hardware shall be 304
series stainless steel for corrosion resistance.
5.5.4
The loadbreak junction shall be assembled to a mounting bracket with
pivoting base.
5.5.5
Mounting bracket shall be provided with 2 ground cable attachments.
Utilizing either “U” channel clamps or a ½-13 UNC nut welded to accept
a ½” transformer tank ground connector.
Page 6 of 9
CSU Specification 194-3
Dated 03/28/2005
Copyright © 2001 City of Colorado Springs on behalf of the Colorado Springs Utilities
5.6
5.7
5.8
T03-01625
Loadbreak Feed-Thru Insert
5.6.1
The loadbreak feed-thru insert shall be designed for converting a radial
feed transformer to loop feed or adding a tap for the installation of an
arrester. It is intended for use in transformers and other apparatus with
200 amp bushing wells.
5.6.2
The feed-thru insert shall have a high conductivity continuous all
copper or copper alloy current path from the female contacts to the
mating bushing well.
5.6.3
The feed-thru insert shall have a method provided to install to a
specified torque or a visible indicator of being fully seated into the
bushing well.
Arresters
5.7.1
Shall be provided with 3 feet of bare #4 awg stranded copper ground
wire.
5.7.2
The parking stand arrester shall be provided with a 304 series stainless
steel mounting bracket AND stainless steel eyebolt with brass or zinc
pressure foot.
Grounding Elbow
5.8.1
The grounding elbow shall be designed to visibly ground cables,
transformers and switchgear. Grounding elbows shall mate with 200
amp loadbreak bushings and accessories.
5.8.2
After assembly the 1/0 welding jumper cable shall comply with
Hastings/Jumper Test Set procedure. The cable shall maintain 95%
resistivity.
5.8.3
Stainless steel, reinforced pulling eye with interlocking tabs shall be
provided.
5.8.4
High quality orange or yellow EPDM rubber insulation shall be provided
to aid in tool recognition.
5.8.5
#1/0 flexible all weather 600 volt insulated copper cable 72 inches
long, complete with ferrule and ground clamp shall be provided. The
electrical ratings for the ground clamp shall be according to table listed
below.
Electrical Ratings
Continuous Current 200 Amps
15 Cycles Fault Current 21,500 Amps
30 Cycles Fault Current 15,000 Amps
Page 7 of 9
CSU Specification 194-3
Dated 03/28/2005
Copyright © 2001 City of Colorado Springs on behalf of the Colorado Springs Utilities
5.9
Insulated Stand-Off Bushing
5.9.1
The insulated standoff bushing shall be designed to isolate and
sectionalize energized cable in padmounted cabinets, underground
vaults, and other apparatus for temporary or permanent parking of
energized 200 amp loadbreak elbow connectors that conform to
ANSI/IEEE 386 latest revision.
5.10 Loadbreak Portable Feed-Thru Stand-Off Insulator
5.10.1 The loadbreak portable feed-thru shall be designed for use in
padmounted equipment, underground vaults, and other apparatus to
bypass transformers and to test and ground circuits.
5.10.2 The portable feed-thru will have a high conductivity continuous all
copper or copper alloy path from the female contact to the copper
leads.
5.10.3 304 series stainless steel mounting bracket shall be provided.
5.10.4 A stainless steel eyebolt with brass or zinc pressure foot shall be
provided.
5.10.5 Attached grounding lug shall be provided.
5.11 Molded Current Limiting Fuse
5.11.1 Shall be supplied with a wall mounting bracket with pivoting base.
5.11.2 Mounting bracket shall be supplied with 2 welded ½-13 UNC nuts for
installation of a ½” transformer tank ground connector.
6. Testing
6.1
Production Tests
6.2
Design Tests
6.3
Certified Test Reports
6.3.1
Certified test reports will be sent to Engineering Standards, P.O. Box
1103, Mail Code 1812, Colorado Springs, CO 80947-1812.
6.3.2
After initial approval is given, all changes in design, methods of
manufacture, installation instructions, dimensions, and location of
manufacture must be submitted in writing to determine if reevaluation
or testing is necessary for approval.
6.3.3
Re-qualifications shall be done whenever any significant change in
design, material or process occurs.
6.3.4
Approved manufacturers shall have on file with Colorado Springs
Utilities a copy of each item's latest installation instructions, interface
and dimensional drawings, and their latest qualifications test reports in
accordance.
T03-01625
Page 8 of 9
CSU Specification 194-3
Dated 03/28/2005
Copyright © 2001 City of Colorado Springs on behalf of the Colorado Springs Utilities
7. Performance Requirements
7.1
Expected useful service life shall be a minimum of 30 years.
7.2
The failure rate over the useful service life shall not exceed 0.1% per year.
8. Packaging and Shipping Requirements
8.1
Components shall be packaged in individual cardboard boxes and contain
protective caps, silicone grease, wrenches (if required) and installation
instructions.
8.2
The boxes shall be labeled on the outside with the manufacturer's name, catalog
number, date manufactured, rating and insulation range.
8.3
Item #194-304-103 shall be packaged with one grounding device for EPR 19
strand copper.
9. Incoming QC or Factory Inspection
9.1
All items shall be subject to incoming tests and inspection and/or factory
inspections. Shipments are subject to rejection based on unacceptable results
during these tests and inspections. The supplier shall be responsible for all costs
including return shipping.
9.2
Manufacturers shall employ an ongoing method to assure that the quality of
incoming material is adequate; Colorado Springs Utilities reserves the right to
approve methods of material quality control.
9.3
All separable insulated connectors shall be subject to random sampling by
Engineering Standards personnel.
T03-01625
Page 9 of 9
CSU Specification 194-3
Dated 03/28/2005
Copyright © 2001 City of Colorado Springs on behalf of the Colorado Springs Utilities