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BURNDY
®
Substation — Welded/EHV
US: 1-800-346-4175
www.burndy.com
Canada: 1-800-387-6487
Blue highlighted items are industry standard and most frequently ordered.
M-25
NOTES:
*Conforms to NEMA standards.
Maximum movement per end equals one-half of total
movement specified in table.
2. Dimensions in brackets [ ] are in millimeters.
3. Cap mounting hardware supplied (Galvanized Steel). For
base mounted hardware add SUFFIX “B” to catalog
number (example: SWXHP20A5B).
4. Conductors smaller than 3 inch not recommended for
550 kV.
5. Bus support couplers are supplied without bus end
plugs. If end plugs are required, add SUFFIX “EP” to cat-
alog number (example: SWXHP20A5EP).
Table is based on 80 ft. max. bus run (total) or 40 ft. per
end.
Table is based on 110 ft. max. bus run (total) or 55 ft. per
end.
WELDED EXPANSION
BUS SUPPORT
COUPLER
SWXHP-A
Weld type
Application: Bus to Bus Expansion
Coupler to Insulator
EHV RATED: SELF-SHIELDING
up to 550 kV
Material: Cast 356 Aluminum Alloy
Corona Rings: Aluminum Alloy
Straps: Laminated Aluminum Strap
Catalog Number
“A” Dia.
Bolt
Total
Sch 40
Sch 80
Alum. Tube Circle Dia.
G* K H Movement
2-1/2 (2.88 Dia.)
5.00
3.12 .69 12.77
3.00
SWXHP19A-5
SWXHP59A-5
[73]
[127]
[79]
[18]
[324]
[76]
3 (3.50 Dia.)
5.00
3.62 .69 13.62
3.00
SWXHP20A-5
SWXHP90A-5
[89]
[127]
[92]
[18]
[346]
[76]
3-1/2 (4.00 Dia.)
5.00
4.00 .69 14.25
3.00
SWXHP21A-5
SWXHP91A-5
[102]
[127]
[102] [18]
[362]
[76]
4 (4.50 Dia.)
5.00
4.50 .69 14.90
4.00
SWXHP22A-5
SWXHP92A-5
[114]
[127]
[114] [18]
[378]
[102]
5 (5.56 Dia.)
5.00
5.25 .69 16.31
4.00
SWXHP24A-5
SWXHP94A-5
[141]
[127]
[133] [18]
[414]
[102]
6 (6.63 Dia.)
5.00
5.50 .69 17.34
4.00
SWXHP86A-5
SWXHP96A-5
[168]
[127]
[140] [18]
[440]
[102]
Installation Data
Bus 3 Total
4 Total
Temp Movement Movement
Z
Z
–20
.75
.75
–10
.82
.84
0
.89
.83
10
.95
1.02
20
1.02
1.11
30
1.09
1.20
40
1.16
1.29
50
1.23
1.39
60
1.30
1.48
70
1.36
1.57
80
1.43
1.66
90
1.50
1.75
100
1.57
1.84
110
1.64
1.93
120
1.70
2.02
130
1.77
2.11
140
1.84
2.20
150
1.91
2.29
160
1.98
2.39
170
2.05
2.48
180
2.11
2.57
190
2.18
2.66
200
2.25
2.75
NOMINAL
POSITION