COOPER POWER
Deadbreak Connectors
Catalog Data
Effective August 2015
Supersedes 600-44C January 2004
CA650065EN
SERIES
600 A 15/25 kV class standoff bushings
- Canadian Edition
General
Eaton's Cooper Power series 600 A,
15/25 kV and 28 kV insulated standoff bushing
meets the full requirements of IEEE Std
386™-2006 standard — "Separable Insulated
Connector Systems", and provides a single
deadbreak interface made of high quality insulating epoxy material. It is used in pad-mount
cabinets, underground vaults and other apparatus to isolate and sectionalize an energized
cable.
Temporary or permanent parking of energized
600 A 15/25 and 28 kV deadbreak connectors
that conform to IEEE Std 386™-2006 standard
is simplified with the use of insulated standoff
bushings.
The insulated standoff bushing is designed
to be installed in the parking stand mounted
on a transformer or other apparatus. A drain
wire lug is provided on the standoff bracket
for attachment of a drain wire to ensure
deadfront construction. The bushing provides
a fully-shielded, submersible connection for
deadbreak operation.
Insulated standoff bushings for T-OP™ II and
U-OP™ connectors meet all the requirements
and features of the standard insulated standoff
bushing. They incorporate the appropriate
studs which allow for parking of an Eaton's
Cooper Power series 600 A T-OP™ II
connector, or U-OP™ connector, respectively.
Eaton's Cooper Power series 600 A, 15/25
and 28 kV grounded standoff bushing is
designed to be installed in the parking stand
bracket mounted on the transformer or
other apparatus. A 2/0 AWG copper, 5-foot
jacketed cable is connected to the bushing for
attachment to system ground. The bushing
provides a fully visible ground and submersible
connection for temporary or permanent
parking of 600 A deadbreak connectors that
conform to IEEE Std 386™-2006 standard.
All standoff bushing brackets have a stainless
steel eyebolt with a brass pressure foot.
The bushing body is bolted to a stainless
steel base bracket using a stainless steel
bolt. Special pins ensure firm location of the
bushing on the bracket.
Catalog Data CA650065EN
600 A 15/25 kV class standoff bushings - Canadian Edition
Effective August 2015
5.4"
(137 mm)­
DRAIN WIRE LUG
Provides apparatus for
attaching drain wire.
EYEBOLT
Stainless steel eyebolt with brass pressure foot
rigidly secures standoff bushing to parking stand.
5.6"
(143 mm)
EPOXY INSULATION
High quality molded epoxy insulation provides
excellent electrical, thermal and mechanical reliability
for insulated and grounded standoff bushings.
BRACKET
Stainless steel mounting
bracket has drain wire lug
for bracket and shield
grounding.
STANDARD 5/8" – 11 UNC 2B
THREADS meets IEEE Std 386™-2006
standard specifications for 600 A apparatus.
COPPER CABLE
60" (1.52 m) 2/0 flexible, all-weather 600 V,
insulated copper cable, provides ease of
handling and ensures positive grounding.
(Used on grounded standoff bushing only)
S8
Figure 1. Diagram shows grounded standoff bushing made with molded epoxy insulation with five feet of insulated copper.
NNote: Dimensions given are for reference only.
Installation
S8
S7
S8
TANK
WALL
A hotstick tool is used to place the standoff bushing in the parking
stand on the frontplate of the apparatus. Special tools are required
to thread de-energized 600 A connectors onto the standoff bushing.
Refer to the appropriate connector catalog section for further
clarification. Refer to Service Information S600-24-1 600 A 15, 25,
and 35 kV Class Insulated standoff Bushing Instructions for details
on the insulated standoff bushing. For installation of the grounded
standoff bushing, refer to Service Information S600-24-2 15, 25,
and 35, kV Deadbreak Grounding Standoff Bushing Installation
Instructions for details.
S7
For installation of the bushing for T-OP II connectors, refer to Service
Information S600-12-3 600 A 15/25 kV Class T-OP II Connector Assembly
Installation Instructions for details. For installation of the bushing for U-OP
connectors, refer to Service Information S600-14-2 600 A U-OP Visible
Break Connector System Installation Instructions for details.
15/25 kV
Grounded Insulated
0.75" (19 mm) 0.75" (19 mm)
4.2" (106 mm) 4.2" (106 mm)
Production tests
Tests conducted in accordance with IEEE Std 386™-2006 standard:
•
ac 60 Hz 1 Minute Withstand
• 25 kV - 40 kV
•
Figure 2. Standoff bushing stacking dimensions.
•
28 kV - 45 kV
Minimum Corona Voltage Level
• 25 kV - 19 kV
•
28 kV - 21.5 kV
•
Test Point Voltage Test
Tests conducted in accordance with Eaton requirements:
2
www.eaton.com/cooperpowerseries
•
Physical Inspection
•
Periodic Dissection
•
Periodic X-ray Analysis
600 A 15/25 kV class standoff bushings - Canadian Edition
Catalog Data CA650065EN
Effective August 2015
Table 1. Voltage Ratings and Characteristics – Insulated
Standoff Bushing
Description
25 kV
Standard Voltage Class
25
Maximum Rating Phase-to-Ground
15.2
ac 60 Hz 1 Minute Withstand
40
dc 15 Minute Withstand
78
BIL and Full Wave Crest
125
Minimum Corona Voltage Level
19
Description
28 kV
Standard Voltage Class
28
Maximum Rating Phase-to-Ground
16.2
ac 60 Hz 1 Minute Withstand
45
dc 15 Minute Withstand
100
BIL and Full Wave Crest
125
Minimum Corona Voltage Level
21.5
Voltage ratings and characteristics are in accordance with IEEE Std 386™-2006 standard.
Table 2. Current Ratings and Characteristics – Grounded
Standoff Bushing
Description
Amperes
Short Time
25,000 A rms symmetrical for 0.17 s
Current ratings and characteristics are in accordance with IEEE Std 386™-2006 standard.
Ordering information
To order a 15/25 and 28 kV Class Standoff Bushing Kit, refer to Table
3.
Each kit contains:
•
Standoff Bushing with Bracket
•
Shipping Cap (not for energized operation)
•
Silicone Lubricant
•
Installation Instruction Sheet
Table 3. Ordering Selection Guide
Example: To order an Insulated Bushing with Copper Stud Loose (Shown Below)
Catalog Number would be I SB 625 C SC
Standard
Options
Digit
1
G
I
Digits:
1
2
3 4 5 6
I SB625 CSC
Description
For Grounded Bushing**
For Insulated Bushing
Digit
2
Description
SB625 25 kV
SB628 28 kV
Digit
3
Description
A
For Aluminum Bushing
C
For Copper Bushing*
Digit 6
P
Leave
Blank
Leave
Blank
Digit
4 & 5
S A
S T
S C
S U
Leave
Blank
Description
Stud Installed
at Factory
Bagged Stud
Loose in Box
No Stud
Required
Description
Aluminum Stud
T-OP II Stud
Copper Stud
U-OP Stud
No Stud
Required
* Eaton recommends when a copper standoff is designated – use only copper stud.
**Grounded bushing available in copper only. Digit 3 will be “C”.
www.eaton.com/cooperpowerseries
3
Catalog Data CA650065EN
600 A 15/25 kV class standoff bushings - Canadian Edition
Effective August 2015
Eaton
1000 Eaton Boulevard
Cleveland, OH 44122
United States
Eaton.com
Eaton’s Cooper Power Systems Division
2300 Badger Drive
Waukesha, WI 53188
United States
Eaton.com/cooperpowerseries
© 2015 Eaton
All Rights Reserved
Printed in USA
Publication No. CA650065EN
Eaton is a registered trademark.
All other trademarks are property
of their respective owners.
For Eaton's Cooper Power series standoff
bushing product information
call 1-877-277-4636 or visit:
www.eaton.com/cooperpowerseries.