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IEC® Porcelain Post Insulators
Insulators for AC and DC Applications
GE
Digital Energy
IEC Porcelain Post Insulators
Overview
For more than a century, utilities have relied on GE to deliver electrical products
and services to meet their reliability and operational performance needs. GE
is a leading provider of transmission and distribution solutions as well as grid
automation systems that maximize a utilities operational efficiencies and provides
their customers’ with reliable power. Through an alliance with XD Electric, GE has extended its portfolio to include
high and ultra high-voltage power equipment, supporting the highest
transmission voltage levels in the world. XD Electric is one of China's largest
high voltage equipment manufacturers dedicated to the research, application
and development of critical transmission equipment and solutions. XD Electric
has a broad range of products to transform and direct the flow of power for
industrial, commercial and residential users. The XD|GE partnership brings
end-to-end transmission solutions to meet the growing global demand for
electricity. The combined portfolios of GE and XD provide a comprehensive
range of technology solutions to address the unique challenges faced by the
utility sector and energy intensive industries.
In order to guarantee the electrical and mechanical properties, all insulators
are individually examined by an ultrasonic detector and a four-directional
cantilever stress test.
XDlGE IEC Post Insulators
Through production and assembly, there are multiple checkpoints for critical
process steps, including both visual inspection as well as stopped flow
inspection performed to documented test plans. Our production facilities
follow a strict non-conforming procedure to identify and control and to avoid
the use and delivery of the non-conformity.
XD|GE provides a full range of porcelain and polymer housed IEC rated
insulators for AC and DC transmission, substation, and distribution
applications. In most cases, one of our standard product offerings will meet
your application needs. However, if your requirements do not match one of
our standard products, we will work to provide the product you need for your
application.
XD|GE solid core post insulators are widely used in power plants, transmission
substations, distribution substation and high voltage power equipment up
to 1100kV. These solid core post insulators are used in applications for both
insulating and structural support of live components.
Product Features
• High mechanical strength design of insulators including cantilever,
torsion, compression and expansion strength
• Anti-ageing, anti-UV, anti-sandstorm design
• Smooth surface with high hardness and exceptional anti-pollution
performance
• Minimal displacement under load
Manufacturing Excellence
XD|GE produces a variety of insulators in its modern production facilities.
The isostatic production processing line is the most advanced insulator
production technology, developed in Sweden and adapted by XD|GE to attain
the highest performance.
1
Quality
Quality is critical for XD|GE and this focus is evident throughout our
manufacturing environment. Quality begins with an incoming inspection of
all purchased and outsourced materials to ensure that before we begin the
manufacturing process, we have the best possible inputs. Each production facility
maintains working environment standards including controls of cleanliness,
temperature and humidity.
In addition, XD|GE has a dedicated measuring and inspection department
with certified, full-time inspectors in each of our manufacturing sites. This
department provides a secondary cross-inspection for work in process and
finished products, ensuring quality is achieved throughout the manufacturing
process. First pass yield and cost of quality data is maintained and analyzed
per product family.
IEC Porcelain Post Insulators
Advanced Test Facilities
XIHARI® is the Xi’an High Voltage Apparatus Research Institute and is an integral
part of the XD|GE alliance. XIHARI has extensive testing capabilities at its
facility sites, which include: High Power Laboratory, High Voltage Laboratory,
Artificial Climate Laboratory, and EMC Laboratory and an Operational Test
Circuit for HVDC Thyristor Valves. The testing hall meets the requirements of
ISO™/IEC 17025, and boasts some of the largest test equipment in the world,
creating capacity to test insulators as large as 1,100kV AC.
The high voltage apparatus laboratory in XIHARI is a government authorized
national high voltage apparatus quality supervision and inspection test
center. It is an independent third-party laboratory in type tests, routine tests,
performance tests and certificate tests for high voltage apparatus. The
testing facilities at XIHARI also include an extension environmental laboratory.
Testing capabilities here include high altitude testing, high humidity testing,
and temperature testing from -70° C up to +150° C.
Post-Sales / Installation Support
• 24/7 Global customer service
• Multilingual operators available to respond to customer requests
• Emergency response hotline
• Several customer support access points available to obtain support
(telephone, e-mail, fax, or web)
Global Project Engineering Services
• Warranty backed by the strength of GE
XD|GE is dedicated to the success of its customers and provides an array
of services to help successfully deploy and maintain XD|GE products and
business solutions globally. World-class post-sales support, professional
services, and supportive resources are ready to ensure that you
effectively leverage the technical power and business advantages that come
with XD|GE products.
• Local spare parts availability reinforced by a global spare parts reserve
This support infrastructure covers the entire life cycle of the product. You
can count on our XD|GE global services team from the coordination of
transportation logistics through the completion of site acceptance testing
and into warranty and support phases of the product life cycle.
Access to our XD|GE support team for post commissioning needs
is simplified to a single phone number or email address. Our global
support center will be staffed 24x7 to field any incoming concerns
and ensure our customer needs are fulfilled as quickly as possible.
Our experienced and qualified XD|GE field service team has significant reach
and leverage across the globe. The field service team will also have access
to significant high-voltage power equipment domain expertise within XD|GE.
Our dedicated global service team comprises of qualified service engineers,
in addition to a global field service network to deliver world-class Installation,
commissioning and post-sales support.
Specialized Installation & Commissioning
• Logistics including coordination of ocean and inland transportation
• Complete installation services include rigging, labor (mechanical,
and electrical)
• Receiving, rigging, and unloading
• Testing system commissioning
• Site acceptance testing
• We offer a global system of maintenance and repair facilities
Insulator Type Tests
All insulators are designed and tested per requirements in IEC 60168,
IEC 60273, and IEC 60815 and are available upon request.
Testing Includes
• Power frequency wet withstand
• Lightning critical flashover
• Mechanical failing load
cantilever test
• Lightning withstand
• Compression strength
• Wet switching critical flashover
• Torsion test
• Verification of dimensions
Sample Tests
Multiple standard creep ratings are shown. Units need to have the following
minimum creep requirements for the pollution severity classes defined in
IEC 600815-1.
• Verification of dimensions
• Galvanizing
• Temperature cycle
• Cantilever failing strength
• Porosity
• Tensile failing strength
If there are additional creep requirements or any special application that
cannot be met by items shown in catalog, contact your XD|GE representative.
Routine Tests
• Verification of dimensions
• Tensile proof strength
• Cantilever proof strength
• Bending moment
GEDigitalEnergy.com
2
IEC Porcelain Post Insulators
Post Insulators (10kV - 20kV)
170
36
10
260
2211
2220
170
170
4-M12
140
205
110
25
20
14
70
82
350
350
190
165
4- 14
250
4- 18
210
210
2222
4- 18
300
260
2225
2224
Cat. No
400
50
68
15
140
15
20
4-M12
63
15
210
155
132
76
M16
180
4- 18
2- 12
130
2210
2210
2211
2220
2222
2224
2225
ZS-10/5L
ZS-10/4
ZS-20/10
ZS-20/8
ZS-20/16
ZS-20/30
Rated Voltage (kV)
10
10
20
20
20
20
Nominal Creepage Distance (mm)
230
230
400
400
470
470
Bending (kN)
5
4
10
8
16
30
Torsion (kN.m)
--
--
--
--
--
--
Lightning Impulse
75
75
150
150
150
150
Dry
60
47
75
75
75
75
Wet
30
30
50
50
50
50
Shed Number
2
2
4
4
5
5
Weight (kg)
6
6
18
15
20
32
Type
Mechanical Load
(min)
Withstand
Voltage
(kV)
3
82
20
12
4-M10
106
2-M12
210
45
53
15
55
180
140
220
140
350
42
42
10
2-M8
140
15
36
2-M8
4-M12
92
44
92
Power
Frequency
GEDigitalEnergy.com
IEC Porcelain Post Insulators
Post Insulators (20kV - 35kV)
170
225
82
20
4- 18
140
44
44
15
275
170
4-M12
140
15
4-M12
165
4- 18
70
14
225
15
20
68
82
370
420
420
165
210
4-M12
275
140
170
2229
2200
4- 14
180
210
2204
170
4-M16
127
235
70
14
14
60
14
140
70
400
480
155
150
560
40
12
40
12
140
4- 14
162
140
85
4- 14
20
170
4- 14
180
170
2206
4- 14
180
4- 14
210
210
2209
2213
2229
2200
2204
2206
ZY-20/20
ZS-35/6L
ZS-35/8
ZS-35/4K
Rated Voltage (kV)
20
35
35
35
35
35
Nominal Creepage Distance (mm)
400
648
625
648
650
1260
Bending (kN)
20
6
8
4
4
4
Torsion (kN.m)
―
3.0
2.0
1.2
1.2
1.8
Lightning Impulse
150
185
185
185
200
250
Dry
Power
Frequency Wet
75
100
100
100
110
135
50
80
80
80
70
95
Shed Number
4
7
6
7
7
big5 small4
Weight (kg)
31
17
16
12
15
27
Cat. No
Type
Mechanical Load
(min.)
Withstand
Voltage
(kV)
GEDigitalEnergy.com
2209
2213
ZS-35/4-G ZSW1-35/4-4
4
IEC Porcelain Post Insulators
Post Insulators (35kV - 63kV)
ANSI TOV (No Prior Duty)
170
170
140
140
170
4-M12
140
63
15
40
180
170
4-M12
140
170
82
20
15
15
68
68
480
480
170
4-M12
140
170
2270
275
2271
2240
15
63
180
840
250
300
4- 14
210
2241
82
20
110
20
14
70
760
170
850
235
230
8- 18
4- 18
225
275
2242
2830
2270
2271
2240
2241
2242
2830
ZSW-35/4-G
ZSW-35/4-G
ZS-63/5
ZS-63/4
ZS-63/15
ZSW-63/4-4
Rated Voltage (kV)
35
35
63
63
63
63
Nominal Creepage Distance (mm)
875
875
1160
1104
1104
2010
Cat. No
Type
Bending (kN)
4
4
5
4
15
4
Torsion (kN.m)
1.2
1.2
2.0
2.0
4.0
2.0
Lightning Impulse
200
200
325
325
325
325
Dry
110
110
175
175
175
175
Wet
70
70
140
140
140
140
Shed Number
7
7
11
10
9
15
Weight (kg)
15
15
38
29
61
50
Machanical Load
(min.)
Withstand
Voltage
(kV)
5
140
63
140
82
20
170
170
4-M12
210
15
4- 18
4- 18
225
260
4-M12
710
40
12
4- 14
12
4- 14
Power
Frequency
GEDigitalEnergy.com
IEC Porcelain Post Insulators
Post Insulators (110kV)
275
300
2243
2272
80
18
92
1050
20
254
225
8- 18
1050
220
92
20
8- 18
70
260
4- 18
240
92
254
80
2295
254
20
1050
80
18
220
20
265
290
8- 18
4- 18
225
92
260
225
4- 18
1200
92
1200
4- 18
250
275
190
245
100
20
82
20
4- 18
225
4- 14
250
1200
170
230
225
20
63
15
4- 18
18
140
17
170
4-M12
254
290
290
290
2810
2811
2813
2243
Cat. No
ZS-110/4-G
Type
2272
2295
ZSW-110/8K-2 ZSW-110/4K-2
2810
2811
8- 18
2811
ZS-110/10K ZS-110-16K ZS3-110-10K
Rated Voltage (kV)
110
110
110
110
110
110
Nominal Creepage Distance (mm)
2016
2830
3025
2142
2200
2650
Machanical Load
(min.)
Bending (kN)
4
8
4
10
16
10
Torsion (kN.m)
2.0
4.0
3.0
4.0
6.0
4.0
Withstand
Voltage
(kV)
Lightning Impulse
550
550
550
450
450
450
Dry
300
300
300
245
245
245
Wet
230
230
230
185
185
185
18
18
23
76
93
75
Power
Frequency
Shed Number
16
Weight (kg)
49
big 12 small 12 big12 small 12
89
GEDigitalEnergy.com
70
6
IEC Porcelain Post Insulators
Post Insulators (110kV - 145kV)
ANSI TOV (No Prior Duty)
260
8- 18
1150
1200
195
254
18
105
22
8- 18
140
15
92
20
80
1150
254
92
170
4-M12
254
285
92
260
85
15
20
2819
290
225
18
275
63
2868
4- 18
225
8- 18
1050
2814
20
4- 18
225
275
4- 18
1400
80
20
8- 18
290
140
250
82
210
92
20
254
4-M12
15
1050
92
20
240
4- 18
225
290
290
265
2820
2821
2831
Cat. No
2814
2868
2819
2820
2821
2831
ZS-110/16K
ZS2-110/4-G
ZSW-110/6-3
ZSW-110/10K-3
ZSW-110/20K-3
ZSW-110/4
Rated Voltage ( kV)
110
110
110
110
110
110
Nominal Creepage Distance (mm)
2650
2520
3150
3150
3200
2016
Type
7
170
170
140
4-M12
80
290
254
8- 18
Machanical Load
(min.)
Bending (kN)
16
4
6
10
20
4
Torsion (kN.m )
6.0
2.0
3.0
4.0
6.0
2.0
Withstand
Voltage
(kV)
Lightning Impulse
450
650
450
450
450
450
Dry
245
375
245
245
245
245
Wet
185
185
185
185
Power
Frequency
185
275
Shed Number
23
19
Weight (kg)
93
70
big 12 small 12 big12 small12 big12 small12
GEDigitalEnergy.com
77
87
102
16
50
IEC Porcelain Post Insulators
Post
Insulators (110kV)
Label
4-M12
4- 18
2867
80
4- 18
225
265
2886
Cat. No
80
18
225
275
290
1200
63
245
82
20
92
8- 18
254
82
20
140
205
1060
92
1060
170
140
1200
1500
230
170
15
120
4-M12
2837
15
162
20
275
2833
127
4- 18
225
275
265
20
4- 18
225
2832
4-M16
210
82
20
18
80
197
4- 18
225
190
63
15
1400
80
15
255
4- 14
140
16
4-M12
140
4-M12
226
170
170
2888
2832
2833
2837
ZSW-110/4-4
ZS2-110/4
ZS-110/5
Rated Voltage (kV)
110
110
110
110
110
110
Nominal Creepage Distance (mm)
3906
2142
1941
3300
2520
3050
Bending (kN)
4
4
5
10
4
4
Torsion (kN.m )
2.0
2.0
2.0
4.0
3.0
3.0
Lightning Impulse
650
450
450
650
550
550
Dry
375
245
245
375
300
300
Wet
275
185
185
275
230
230
big12 small11
19
15
26
72
50
56
108
Type
Machanical Load
(min.)
Withstand
Voltage
(kV)
Shed Number
Weight (kg)
Power
Frequency
GEDigitalEnergy.com
2867
2886
2888
ZS-110/10-G ZSW-110/4-2 ZSW2-110/4-2
big14 small13 big12 small12
59
71
8
IEC Porcelain Post Insulators
Post Insulator (154kV - 220kV)
190
4-M12
4- 18
225
4- 18
2245
4-M12
250
2261
2262
Type
2262
170
140
1320
2420
240
1100
1100
190
2300
310
360
8- 18
20
290
1200
8- 18
22
250
300
2274
2261
2245
280
1100
300
20
4- 18
250
280
2300
2300
250
710
1200
4- 18
20
250
300
Cat. No
4- 18
2278
2276
2274
250
300
2276
2278
ZS-154/4 ZSW4-220/4K ZSW2-220/4 ZSW1-220/8K-2 ZSW1-220/15K-2 ZS-220/4-G
Rated Voltage (kV)
154
220
220
220
220
220
Nominal Creepage Distance (mm)
2832
5500
5500
5500
5500
4510
Bending (kN)
4.0
4.0
4.0
8.0
15.0
4.0
Torsion (kN.m)
2.0
2.0
2.0
2.0
6.0
2.0
Lightning Impulse
660
1050
1050
1050
1050
1050
Switching Impulse
--
850
850
850
850
850
Dry
375
525
525
525
525
525
Wet
290
460
460
460
460
460
2240+2836
2295+2889
2888+2889
2272+2273
2273+2275
2283+2847
115
146
150
189
239
139
Machanical Load
(min)
Withstand
Voltage
(kV)
Stack Components
Weight (kg)
9
245
2300
1060
4- 18
245
1100
250
300
20
20
230
245
1100
17
1770
245
1200
710
180
300
15
20
15
4- 14
275
170
140
20
230
140
15
170
4-M12
Power
Frequency
GEDigitalEnergy.com
IEC Porcelain Post Insulators
Post Insulator (220kV)
2703
300
335
8- 18
2703
Type
ZS-220/10K
8- 18
2706
1220
295
2300
8- 18
2716
2712
270
2300
300
335
290
2713
225
18
310
22
254
8- 18
2712
Cat. No
1150
1150
285
285
1150
20
22
254
290
4- 18
2300
260
2350
2706
1150
260
20
8- 18
1050
1050
254
290
270
22
20
240
2100
2100
250
1200
15
240
1050
1050
220
265
254
22
140
8- 18
225
4- 18
18
4-M12
290
260
170
254
15
18
8- 18
1080
290
225
1150
260
4- 18
2713
8- 18
254
290
2719
2716
2719
ZS4-220/16K ZSW-220/6-3 ZSW-220/10K-3 ZSW-220/16K-3 ZSW-220/8K-3
Rated Voltage (kV)
220
220
220
220
220
220
Nominal Creepage Distance (mm)
4284
4284
6300
6300
6300
6300
Bending (kN)
10.0
16.0
6.0
10.0
16.0
8.0
Torsion (kN.m)
4.0
6.0
3.0
4.0
6.0
10.0
Lightning Impulse
950
950
1050
1050
1050
1050
Switching Impulse
750
750
850
850
850
850
Dry
490
490
525
525
525
525
Wet
390
395
460
460
460
460
2810+2811
2811+2812
2819+2820
2820+2821
2821+2822
2850+2851
169
207
164
190
232
219
Machanical Load
(min)
Withstand
Voltage
(kV)
Stack Components
Weight (kg)
Power
Frequency
GEDigitalEnergy.com
10
IEC Porcelain Post Insulators
Post Insulator (220kV - 330kV)
ANSI TOV (No Prior Duty)
170
4- 18
140
265
225
15
18
4-M12
600
1300
1050
220
1060
210
600
600
250
270
1080
3500
3150
3480
295
3500
260
1150
1050
240
1100
230
2860
2265
8- 18
2737
2744
315
1200
1150
254
290
22
285
1200
8- 18
300
335
22
250 8- 18
300
2277
Cat. No
275
310
8- 18
2745
2860
2265
2277
ZS-220/4
ZS-330/4K
ZS-330/5K
Rated Voltage (kV)
220
330
330
330
330
330
Nominal Creepage Distance (mm)
3740
5610
6740
7800
9075
9075
Bending (kN)
4.0
4.0
5.0
10.0
6.0
8.0
Torsion (kN.m)
2.0
2.0
2.0
6.0
3.0
10.0
Lightning Impulse
950
1425
1550
1425
1550
1550
Switching Impulse
750
1050
1175
1050
1175
1175
Dry
490
695
740
695
740
740
Wet
395
630
680
630
680
680
Type
Machanical Load
(min)
Withstand
Voltage
(kV)
Stack Components
Weight (kg)
11
22
8- 18
270
1070
250
300
20
4- 18
240
240
1070
250
300
20
20
230
1060
2120
3200
230
1060
195
1060
15
4-M12
170
140
220
1200
600
600
1220
16
16
226
190
260
225
18
4- 18
4- 14
4- 18
226
190
Power
Frequency
2831+2836
128
2737
2744
ZS3-330/10K ZSW-330/6-3 ZSW1-330/8K-3
2837+2836+2848 2244+2847+2848 2813+2814+2815 2819+2820+2821
230
250
GEDigitalEnergy.com
2745
295
274
2850+2851+2852
361
IEC Porcelain Post Insulators
Post Insulator (400kV - 500kV)
275
225
20
4- 14
8- 18
310
275
22
1500
290
270
270
1500
4400
270
1500
200
230
1500
4400
200
1500
155
127
1500
4400
15
16
8-M10
310
275
8- 18
1400
176
127
4-M16
245
210
22
4- 18
15
230
1300
1000
800
1250
1500
200
1100
240
270
2749
2267
8- 18
2753
1400
1400
23
23
1500
4400
2751
300
335
325
360
8- 18
2754
2267
2750
2751
2753
2754
ZSW-400/8/3
ZS1-500/5K
ZC1-500/N4L
ZC1-500/N4K
ZS-500/8K
ZS1-500/11K
400
500
500
500
500
500
10810
8710
8800
8800
8800
800
Bending (kN)
8.0
5.0
--
--
8.0
11.0
Torsion (kN.m)
10.0
2.0
4.0
4.0
10.0
10.0
Lightning Impulse
1675
1950
1950
1950
1950
1950
Switching Impulse
1175
1300
1300
1300
1300
1300
Dry
820
900
900
900
900
900
Wet
740
800
800
800
800
800
Nominal Creepage Distance (mm)
Weight (kg)
210 4- 18
245
290
2749
Rated Voltage (kV)
Stack Components
127 8-M10
155
2750
Type
Withstand
Voltage
(kV)
200
15
300 8- 18
335
Cat. No
Machanical Load
(min)
200
1500
1070
1100
3650
8- 18
200
15
300
335
240
25
22
315
240
1200
295
1200
4580
230
Power
Frequency
2854+2855+2856
390
2846+2847+2848+2849 2871+2872+2873
385
GEDigitalEnergy.com
193
2872+2872+2877
198
2861+2862+2863 2866+2866+2865
432
465
12
IEC Porcelain Post Insulators
Post Insulator (500kV)
ANSI TOV (No Prior Duty)
265
225
18
4- 18
15
15
20
240
240
1500
230
1500
245
270
245
210
4- 18
1500
1500
295
240
1500
4400
240
1200
1500
4400
270
1500
4400
280
1500
4400
280
1500
4400
4700
245
155
8-M10 127
1080
8- 18
22
20
8- 18
290
254
1500
4-M16 127
310
275
1200
1000
162
315
2755
2756
2757
2770
300
335
8- 18
1400
1400
8-M10
335
1200
127
155
210 4- 18
245
2771
23
8- 18
240
15
325
360
15
8- 18
240
1400
1400
325
360
Cat. No
2773
2755
2756
2757
2770
ZS1-500/14
ZS1-500/14K
ZS1-500/10K
ZCW-500/N4L-3
Rated Voltage (kV)
500
500
500
500
500
500
Nominal Creepage Distance (mm)
8800
8800
8800
13750
13750
13750
Bending (kN)
14.0
14.0
14.0
--
--
8.0
Torsion (kN.m)
10.0
10.0
10.0
4.0
4.0
10.0
Lightning Impulse
1950
1950
1950
1950
1950
1950
Switching Impulse
1300
1300
1300
1300
1300
1300
Dry
900
900
900
900
900
900
Wet
800
800
800
800
800
800
Type
Machanical Load
(min)
Withstand
Voltage
(kV)
Stack Components
Weight (kg)
13
290
23
325 8- 18
360
305
23
23
305
1400
240
Power
Frequency
2881+2882+2883 2880+2882+2883 2864+2862+2865
2874+2875+2876
536
242
532
423
GEDigitalEnergy.com
2771
2773
ZCW-500/N4K-3 ZSW1-500/8K-3
2875+2875+2878 2850+2851+2852+2853
247
540
IEC Porcelain Post Insulators
Post Insulator (500kV)
310
275
20
20
8- 18
290
254
8- 18
310
275
8- 18
310
275
22
8-M18
127
22
162
4-M16
20
310
275
22
8- 18
1000
2774
2775
2777
2775
2776
1500
8- 18
2778
2777
4400
325
360
8- 18
1500
1400
300
335
320
23
8- 18
1500
4400
325
360
23
320
295
1400
1500
1500
1500
4400
295
1400
1500
1500
4400
320
295
2784
2778
2784
500
500
500
500
500
500
13750
13750
13750
13750
13750
13750
Bending (kN)
11.0
14.0
14.0
10.0
8.0
11.0
Torsion (kN.m)
10.0
10.0
10.0
10.0
10.0
10.0
Lightning Impulse
1950
1900
1900
1950
1950
1950
Switching Impulse
1300
1300
1300
1300
1300
1300
Dry
Power
Frequency Wet
900
900
900
900
900
900
800
800
800
800
800
800
Nominal Creepage Distance (mm)
Weight (kg)
295
270
ZSW1-500/11K-3 ZSW1-500/14-3 ZSW1-500/14K-3 ZSW1-500/10K-3 ZSW2-500/8K-3 ZSW2-500/11K-3
Rated Voltage (kV)
Stack Components
8- 18
2776
2774
Type
Withstand
Voltage
(kV)
325
360
23
8- 18
270
1400
1500
325
360
Cat. No
Machanical Load
(min)
335
23
325 8- 18
360
310
1500
4400
335
275
1400
1500
310
23
23
320
1500
4400
295
275
1400
295
2896+2896+2897 2884+2885+2887 2890+2885+2887 2895+2896+2897 2894+2896+2898 2896=2896+2897
530
530
554
GEDigitalEnergy.com
494
494
540
14
GEDigitalEnergy.com
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