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CATALO G 014
Polymer Insulators for46kV to 765kV Applications
IEC Standard
NGK-Locke Polymer Insulators, Inc.Virginia Beach, Virginia, U.S.A.
NGK-Locke Polymer Insulators, Inc. Line Post Insulators
TABLE of CONTENTS
NGK-Locke Polymer Insulator Design ..............................................................................2
Research and Development ............................................................................................3
Suspension Insulator Design and Technical Information ................................................4-5
• IEC 70kN - 120kN Class / SC Sheds Series ................................................................6
• IEC 210kN Class / SC Sheds Series ............................................................................7
• IEC 70kN - 120kN Class / SS, SL, and SE Sheds Series ..........................................8-9
• IEC 210kN Class / SS, SL, and SE Sheds Series ..................................................10-11
• IEC 160kN Class / SC, SS, and SL Sheds Series ..................................................12-13
• IEC 300kN Class / SS, SL, and SE Sheds Series........................................................14
• Standard Insulation Level ............................................................................................15
Line Post Insulator Design and Technical Information................................................16-17
• 44mm Core Series ................................................................................................18-19
• 63mm Core Series ................................................................................................20-23
• 76mm Core Series ................................................................................................24-25
• 88mm Core Series ................................................................................................26-27
Packaging ......................................................................................................................28
NGK-Locke Polymer Insulators, Inc. is ISO 9001 and ISO 14001 certified by the British Standards Institutes, BSI. BSIis accredited by NACCA, RAB, and RvC.
1
NGK-Locke Polymer Insulators, Inc. NGK-LOCKE Polymer Insulators
2
NGK’s polymer insulators are the result of more than 40 years of research and development. Our ISO 9001 certificationhas been achieved due to our vast engineering expertise, stringent quality control processes, advanced manufacturingcapabilities, and our selection of the best materials and optimum designs. All of these are essential in order to meet NGK’straditional policy of commitment to producing insulators of the highest quality.
MaterialsEnd-fittingsForged steel or ductile cast iron (hot dip galvanized).
HousingSilicone rubber with excellent hydrophobicity and anti-tracking performance. The material passes not onlyIEC/ANSI tracking erosion test but also other standard aging tests such as CSA / tracking wheel test.
CoreHigh quality pultruded epoxy FRP (Fiberglass Reinforced Plastics) rod.
InterfacesHousing to CoreExcellent chemical bonding stronger than rubber’s inherentstrength. No sheath-to-shed interface and no joint inhousing up to 800 kV class application because of directone-piece molding.
Housing to End-FittingWater-tight sealing ensured by double O-rings built into housing structure and silicone sealant with positive contactby crimping the end-fitting.
End fitting to CoreSuperior gripping of core due to pressure controlled multiple step circumferential compression which enablesexcellent mechanical performance because of less stressconcentration.
Crimping Method(NGK Pat. No. 4654478 (U.S.))
Crimping Machine Molding
•
•
•
•
•
•
•
•
•
•
•
•
End Fitting Dies
• •F R P
•
DESIGN
NGK-Locke Polymer Insulators, Inc.
3
Research and DevelopmentHigh performance and quality of our polymer insulators have been proven by extensive research. At both NGK’s High VoltageLaboratory and our other testing facilities, we have conducted the standard tests specified in international standards, such asIEC.Various tests, from chemical analysis of the materials to full-scale electrical and mechanical tests on polymer insulators, alsohave been performed.These results indicate the continuous improvement of our polymer insulator technology.
Combined aging test as per IEC Pub. 61109 Annex C
Partial discharge during tracking wheel test
Contamination test on polymer suspension insulator
Tracking and erosion test as per CSA-C411.4 (tracking wheel test: method 2)
Dynamic mechanical load testing on line post insulator
NGK-Locke Polymer Insulators, Inc. Suspension InsulatorsCatalog Number SystemSuspension Insulator
E 12 1 - S L 50 0 - SB - 41
4
Coresize
Shed Design
Type ofNumber of sheds
Type ofgrading ring(Top/Bottom)
(Side View) (Top View)
General Recommendation on Grading Rings*
Ring Size Suffix
End Fitting Design (IEC Type Coupling Dimensions)
Typical Highest Voltage
None
None**
None
None
200 mmø
100 mmø
280 mmø
200 mmø
380 mmøGrading RingApplication
145 kV and below 245 kV 345 kV 550 kV
08 for 200 mmøat bottom
41 for 100ø mm at top and280 mmø at bottom
85 for 200 mmø at top and380 mmø at bottomCatalog # Suffix (Examples)
Other size of ring is also available.
For more detailed information, contact NGK.
Top (Tower side)
Bottom (Line side)
Ring size
None
100 mm (4”) ø
200 mm (8”) ø
A B C D F (min) B A B (min) C A B C
26 51 16 16 39 19 20 46 19 13.5 13.3 17.5 IEC 16
26 51 22 22 40 22 20 53 22 22.8 14.9 24 IEC 20
_ _ _ _ _ _ 26 57.5 25 _ _ _ IEC 24
Catalog # Suffix
0
4
8
Ring size
240 mm (9.5”) ø
280 mm (11”) ø
380 mm (15”) ø
Catalog # Suffix
9
1
5
SML,kN
70/80
120
160
210
300
Catalog #Suffix
E071/E081
E121
E162
E212
E302
Oval-eye Y-clevis Clevis TongueBall-socket
Grading Ring
*For more detailed information, contact NGK.**Corona Ring may be required under specific condition.
NGK-Locke Polymer Insulators, Inc.
Max. linevoltage BIL, kV
Suspension InsulatorsDesign Variety of Weather Sheds (Examples)
5
SML andcoupling
Specific creepage distance, mm/kVH
(Required creepage distance, mm)
Min. nominal specific creepagedistance, mm/kVH
Pollution Level
Section length of insulator unit,mm
kVH : Max. phase-to-phase voltage in kV
* : 200 mm ring equipped at bottom end ** : 100 mm and 280 mm rings equipped at top and bottom ends, respectively.*** : 200 mm and 380 mm rings equipped at top and bottom ends, respectively.
For more detailed information, contact NGK.
120 kN
SML, IEC
16 Ball &
Socket
120 kN
SML, IEC
16 Ball &
Socket *
210 kN
SML, IEC
20 Ball &
Socket**
210 kN
SML, IEC
20 Ball &
Socket***
16 (2320)
20 (2900)
25 (3625)
31 (4495)
40 (5800)
16 (3920)
20 (4900)
25 (6125)
31 (7595)
40 (9800)
16 (5792)
20 (7240)
25 (9050)
31 (11222)
40 (14480)
16 (8400)
20 (10500)
25 (13125)
31 (16275)
40 (21000)
1260 [33]
1500 [41]
1950 [56]
2370 [70]
2850 [82]
3450 [102]
3960 [119]
4830 [148]
1290 [34]
1560 [43]
1980 [57]
2430 [72]
2940 [85]
3570 [106]
4080 [123]
5010 [154]
1260 [33]
1500 [41]
1920 [55]
2340 [69]
2850 [82]
3420 [101]
3930 [118]
4770 [146]
1320 [35]
1620 [45]
2040 [59]
2555 [76]
3000 [87]
3750 [112]
4140 [125]
5250 [162]
16
20
25
31
40
Light
Medium
Heavy
Very Heavy
—
Catalog # Suffix of Shed Type (for silicone)
Applicable area (Pollution level) Clean Heavy pollution
Our shed profile variation can cover wide insulator design application from clean to harsh environments. Other sheddesigns are also available to match various customer requirements. All NGK shed designs comply with IEC pub. 60815
!550145 kV
245 kV
362 kV
525 kV
!850
!1050(S.I. :850withstand)
!1425(S.I. :1175withstand)
(Reference)IEC Definition of Pollution Level (IEC Pub. 60815)
NGK-Locke Polymer Insulators, Inc. Suspension InsulatorsIEC 70 kN – 120 kN Class / SC Sheds Series
100
- 138
kV
Catalog No. Section length, mm Nominal creepage Dry arc ApproximateTypicalSystemVoltage
E__-SC210-SB
E__-SC250-SB
E__-SC280-SB
E__-SS310-SB
E__-SC340-SB
E__-SC350-SB
E__-SC390-SB
E__-SC410-SB
E__-SC450-SB
E__-SC500-SB
E__-SC550-SB
E__-SC590-SB
E__-SC640-SB
E__-SC690-SB
E__-SC740-SB
E__-SC780-SB
E__-SC810-SB
E__-SC860-SB
E__-SC880-SB
E__-SC910-SB
E__-SC930-SB
E__-SC1000-SB
1490
1775
1985
2200
2415
2485
2770
2910
3195
3550
3905
4190
4545
4900
5255
5535
5750
6105
6245
6460
6600
675
790
880
970
1060
1090
1210
1270
1390
1540
1690
1815
1965
2115
2265
2385
2475
2625
2685
2775
2835
240
275
300
325
350
360
390
405
435
475
510
535
565
600
630
655
670
700
710
725
735
400
465
510
560
610
625
690
720
785
870
950
1015
1095
1175
1260
1325
1370
1450
1485
1535
1565
900
1020
1110
1200
1290
1320
1440
1500
1620
1770
1920
2040
2190
2340
2490
2615
2705
2855
2915
3005
3065
220
- 230
kV
345
kV40
0 kV
NOTES:–The above adjustments electrical values are just for guided ones because of non-linearity of electrical characteristics.–For more detailed values and end-fitting availability, contact NGK.
Applicable standard Catalog # suffix of grading rings
Adjustment ofTabular values
with no gradingrings
Adjustment for electrical values when equipping grading rings
Adjustment for different types of end-fitting couplings
Dry arc distance, mmAC wet withstand voltage, kVLightning impulse withstand voltage, kVNet weight, kg (Approx.)
- 40-10*- 20
- 60-15**
-30+2.5 kg
-130- 25***
- 65+6.5 kg
4108 85
Applicable Drv Arc Distance (DAD)
(Example of Cat. #)For 120 kN SML, Ball & Socket,55 sheds, 230 kV application:
E121-SC550-SB-08
* : DAD > approx. 1.5 m** : DAD > approx. 2 m*** : DAD > approx. 2.5 m
66-6
9 kV
Applied Standard: IEC Pub. 61109 latest issue
SML Rating
70 kN
80 kN
Cat.# suffix (E__-)
E071-
E081-
Ball & Socket Coupling
IEC 16 Fitting type
Adjustment
Cat. # suffix
Y-clevis & Ball
+15 mm / +0.4 kg
YB
Oval eye & Ball
+26 mm / -0.2 kg
EB
Clevis & Clevis
+48 mm / +0.6 kg (IEC 19L)
CC
2.8
3.1
3.3
3.5
3.6
3.7
4.0
4.1
4.4
4.7
5.0
5.3
5.6
6.0
6.3
6.5
6.7
7.1
7.2
7.4
7.5
8.0
6
NGK-Locke Polymer Insulators, Inc. Suspension Insulators
7
IEC 210 kN Class / SC Sheds Series
NOTES:–The above adjustments electrical values are just for guided ones because of non-linearity of electrical characteristics.–For more detailed values and end-fitting availability, contact NGK.
Applicable standard Catalog # suffix of grading rings
Adjustment ofTabular values
with no gradingrings
Adjustment for electrical values when equipping grading rings
Adjustment for different types of end-fitting couplings
Dry arc distance, mmAC wet withstand voltage, kVLightning impulse withstand voltage, kVNet weight, kg (Approx.)
-40-10*-20
-60-15**
-30+2.5 kg
-130-25***
-65+6.5 kg
4108 85
Applicable Drv Arc Distance (DAD)
(Example of Cat. #)For 210 kN SML, Ball & Socket,81 sheds, 345 kV application:
E212-SC810-SB-41
* : DAD > approx. 1.5 m** : DAD > approx. 2 m*** : DAD > approx. 2.5 m
Fitting type
Adjustment
Cat. # suffix
Y-clevis & Ball
+4 mm / +0.4 kg
YB
Oval eye & Ball
+14 mm / -0.4 kg
EB
Clevis & Clevis
+51 mm / +1.6 kg (IEC 22L)
CC
SML Rating
210 kN
Cat.# suffix (E__-)
E212-
Ball & Socket Coupling
IEC 20
220
- 230
kV
Catalog No. Section length, mm Nominal creepage Dry arc ApproximateTypicalSystemVoltage
E212-SC310-SB
E212-SC350-SB
E212-SC390-SB
E212-SC410-SB
E212-SC450-SB
E212-SC500-SB
E212-SC550-SB
E212-SC590-SB
E212-SC640-SB
E212-SC690-SB
E212-SC740-SB
E212-SC780-SB
E212-SC810-SB
E212-SC860-SB
E212-SC880-SB
E212-SC910-SB
E212-SC930-SB
E212-SC1000-SB
E212-SC1090-SB
E212-SC1170-SB
E212-SC1310-SB
E212-SC1410-SB
E212-SC1530-SB
2200
2485
2770
2910
3195
3550
3950
4190
4545
4900
5255
5535
5750
6105
6245
6460
6600
7100
7740
8305
9300
10010
10860
970
1090
1210
1270
1390
1540
1690
1815
1965
2115
2265
2385
2475
2625
2685
2775
2835
3045
3315
3555
3975
4275
4635
325
360
390
405
435
475
510
535
565
600
630
655
670
700
710
725
735
770
815
855
915
960
1005
560
625
690
720
785
870
950
1015
1095
1175
1260
1325
1370
1450
1485
1535
1565
1680
1825
1955
2180
2345
2540
1315
1435
1555
1615
1735
1885
2035
2155
2305
2455
2610
2730
2820
2970
3030
3120
3180
3390
3660
3900
4320
4620
4980
345
kV40
0 kV
500
kV
Applied Standard: IEC Pub. 61109 latest issue
6.2
6.5
6.9
7.1
7.4
7.9
8.3
8.7
9.2
9.6
10.1
10.4
10.7
11.2
11.3
11.6
11.8
12.4
13.2
14.0
15.2
16.1
17.2
100
- 138
kV
NGK-Locke Polymer Insulators, Inc. Suspension Insulators
8
IEC 70 kN – 120 kN Class / SS, SL, and SE Sheds Series
Applied Standard: IEC pub. 61109 latest issue
66 -
69kV
100
- 138
kV
220-
230
kV
Catalog No. Section length, mm Nominal creepage Dry arc ApproximateTypicalSystemVoltage
Shed Suffix #
SSSLSE
Maximum nominalshed diameter D,mm
106132
E__-SS210-SB
E__-SL210-SB
E__-SE210-SB
E__-SS250-SB
E__-SL250-SB
E__-SE250-SB
E__-SS280-SB
E__-SL280-SB
E__-SE280-SB
E__-SS310-SB
E__-SL310-SB
E__-SE310-SB
E__-SS340-SB
E__-SL340-SB
E__-SE340-SB
E__-SS350-SB
E__-SL350-SB
E__-SE350-SB
E__-SS390-SB
E__-SL390-SB
E__-SE390-SB
E__-SS410-SB
E__-SL410-SB
E__-SE410-SB
E__-SS450-SB
E__-SL450-SB
E__-SE450-SB
E__-SS500-SB
E__-SL500-SB
E__-SE500-SB
E__-SS550-SB
E__-SL550-SB
E__-SE550-SB
E__-SS590-SB
E__-SL590-SB
E__-SE590-SB
3.3
4.2
5.0
3.7
4.8
5.7
3.9
5.1
6.2
4.2
5.5
6.7
4.4
5.9
7.2
4.5
6.1
7.4
4.9
6.6
8.1
5.1
6.8
8.4
5.4
7.4
9.1
5.8
8.0
9.9
6.3
8.7
10.8
6.6
9.2
11.4
1815
2355
2750
2160
2800
3270
2400
3120
3645
2675
3470
4055
2915
3790
4430
3015
3915
4575
3360
4365
5095
3530
4585
5355
3875
5030
5875
4290
5575
6515
4730
6145
7180
5075
6590
7700
900
1020
1110
1200
1290
1320
1440
1500
1620
1770
1920
2040
685
805
890
985
1070
1105
1225
1285
1405
1550
1705
1825
240
280
305
330
355
365
395
410
440
475
510
540
405
470
515
570
615
635
700
730
795
875
960
1020
NOTES:–The above adjustments electrical values are just for guided ones because of non-linearity ofelectrical characteristics.
–For more detailed values and end-fitting availability, contact NGK.
230
kV34
5 kV
Catalog No. Section length, mm Nominal creepage Dry arc ApproximateTypicalSystemVoltage
E__-SS640-SB
E__-SL640-SB
E__-SE640-SB
E__-SS690-SB
E__-SL690-SB
E__-SE690-SB
E__-SS740-SB
E__-SL740-SB
E__-SE740-SB
E__-SS780-SB
E__-SL780-SB
E__-SE780-SB
E__-SS810-SB
E__-SL810-SB
E__-SE810-SB
E__-SS860-SB
E__-SL860-SB
E__-SE860-SB
E__-SS880-SB
E__-SL880-SB
E__-SE880-SB
E__-SS910-SB
E__-SL910-SB
E__-SE910-SB
E__-SS930-SB
E__-SL930-SB
E__-SE930-SB
E__-SS1000-SB
E__-SL1000-SB
E__-SE1000-SB
7.0
9.8
12.2
7.5
10.5
13.1
7.9
11.1
13.9
8.2
11.6
14.6
8.5
12.0
15.1
8.9
12.7
15.9
9.1
12.9
16.3
9.4
13.3
16.8
9.6
13.6
17.2
10.1
14.5
5490
7135
8335
5930
7710
9000
6345
8250
9640
6690
8695
10160
6960
9045
10565
7375
9590
11200
7545
9810
11460
7820
10160
11870
7990
10385
12125
8575
11150
13025
2190
2340
2490
2615
2705
2855
2915
3005
3065
3275
1970
2125
2270
2390
2485
2630
2690
2785
2845
3050
570
600
630
655
675
700
710
730
740
775
1100
1185
1260
1325
1380
1455
1490
1540
1575
1685
400
kV
SML Rating
70 kN
80 kN
Cat.# suffix (E__-)
E071-
E081-
Applicable standard Catalog # suffix ofgrading rings
Adjustment ofTabular values
with no gradingrings
Ball & Socket Coupling
IEC 16 Fitting type
Adjustment
Cat. # suffix
Y-clevis & Ball
+15 mm / +0.4 kg
YB
Oval eye & Ball
+26 mm / -0.2 kg
EB
Clevis & Clevis
+48 mm / +0.6 kg (IEC 19L)
CCAdjustment for electrical values when equipping grading rings
Adjustment for different types of end-fitting couplings
Dry arc distance, mmAC wet withstand voltage, kVLightning impulse withstand voltage, kVNet weight, kg (Approx.)
-45-10*-25
-65-15**
-35+2.5 kg
-140-25***
-75+7 kg
ShedType
SS
SLSE
08
0901
85
9515
41
Applicable Drv Arc Distance (DAD)
(Example of Cat. #)For 120 kN SML, Ball & Socket,55 SS sheds, 230 kV application:
E121-SS550-SB-08
* : DAD > approx. 1.5 m** : DAD > approx. 2 m*** : DAD > approx. 2.5 m
NGK-Locke Polymer Insulators, Inc. Suspension Insulators
9
NGK-Locke Polymer Insulators, Inc. Suspension InsulatorsIEC 210 kN Class / SS, SL and SE Sheds Series
10
Applied Standard: IEC Pub. 61109 latest issue
100
- 138
kV
220
- 230
kV
Catalog No. Section length, mm Nominal creepage Dry arc ApproximateTypicalSystemVoltage
Shed Suffix #
SSSLSE
Maximum nominalshed diameter D,mm
114140
E212-SS310-SB
E212-SL310-SB
E212-SE310-SB
E212-SS350-SB
E212-SL350-SB
E212-SE350-SB
E212-SS390-SB
E212-SL390-SB
E212-SE390-SB
E212-SS410-SB
E212-SL410-SB
E212-SE410-SB
E212-SS450-SB
E212-SL450-SB
E212-SE450-SB
E212-SS500-SB
E212-SL500-SB
E212-SE500-SB
E212-SS550-SB
E212-SL550-SB
E212-SE550-SB
E212-SS590-SB
E212-SL590-SB
E212-SE590-SB
E212-SS640-SB
E212-SL640-SB
E212-SE640-SB
E212-SS690-SB
E212-SL690-SB
E212-SE690-SB
E212-SS740-SB
E212-SL740-SB
E212-SE740-SB
E212-SS780-SB
E212-SL780-SB
E212-SE780-SB
6.9
8.5
9.8
7.4
9.1
10.6
7.9
9.8
11.4
8.1
10.1
11.8
8.6
10.8
12.6
9.1
11.5
13.6
9.7
12.4
14.7
10.2
13.0
15.5
10.7
13.8
16.5
11.3
14.7
17.6
11.9
15.5
18.6
12.3
16.1
19.4
2675
3470
4055
3015
3915
4575
3360
4365
5095
3530
4585
5355
3875
5030
5875
4290
5575
6515
4730
6145
7180
5075
6590
7700
5490
7135
8335
5930
7710
9000
6345
8250
9640
6690
8695
10160
1315
1435
1555
1615
1735
1885
2035
2125
2305
2455
2610
2730
985
1105
1225
1285
1405
1550
1705
1825
1970
2125
2270
2390
330
365
395
410
440
475
510
540
570
600
630
655
570
635
700
730
795
875
960
1020
1100
1185
1260
1325
NGK-Locke Polymer Insulators, Inc. Suspension Insulators
11
345
kV40
0 kV
Catalog No. Section length, mm Nominal creepage Dry arc Approximate
E212-SS810-SB
E212-SL810-SB
E212-SE810-SB
E212-SS860-SB
E212-SL860-SB
E212-SE860-SB
E212-SS880-SB
E212-SL880-SB
E212-SE880-SB
E212-SS910-SB
E212-SL910-SB
E212-SE910-SB
E212-SS930-SB
E212-SL930-SB
E212-SE930-SB
E212-SS1000-SB
E212-SL1000-SB
E212-SE1000-SB
E212-SS1090-SB
E212-SL1090-SB
E212-SE1090-SB
E212-SS1170-SB
E212-SL1170-SB
E212-SE1170-SB
E212-SS1310-SB
E212-SL1310-SB
E212-SE1310-SB
E212-SS1410-SB
E212-SL1410-SB
E212-SE1410-SB
E212-SS1530-SB
E212-SL1530-SB
E212-SE1530-SB
12.7
16.6
20.1
13.2
17.4
21.1
13.5
17.8
21.5
13.8
18.3
22.1
14.1
18.6
22.5
14.9
19.7
23.9
15.9
21.2
25.8
16.8
22.5
27.5
18.4
24.8
30.3
19.6
26.5
32.4
21.0
28.4
6960
9045
10565
7375
9590
11200
7545
9810
11460
7820
10160
11870
7990
10385
12125
8575
11150
13025
9360
12170
14210
10050
13060
15255
11250
14620
17080
12105
15735
18380
13135
17075
19945
2820
2970
3030
3120
3180
3390
3660
3900
4320
4620
4980
2485
2630
2690
2785
2845
3050
3330
3570
3990
4290
4650
675
700
710
730
740
775
820
855
920
960
1010
1380
1455
1490
1540
1575
1685
1835
1960
2190
2350
2545
500
kV
NOTES:–The above adjustments electrical values are just for guided ones because of non-linearity of electrical characteristics.
–For more detailed values and end-fitting availability, contact NGK.
SML Rating
210 kN
Cat.# suffix (E__-)
E212-
Applicable standard Catalog # suffix ofgrading rings
Adjustment ofTabular values
with no gradingrings
Ball & Socket Coupling
IEC 20 Fitting type
Adjustment
Cat. # suffix
Y-clevis & Ball
+4 mm / +0.4 kg
YB
Oval eye & Ball
+14 mm / -0.4 kg
EB
Clevis & Clevis
+51 mm / +1.6 kg (IEC 22L)
CCAdjustment for electrical values when equipping grading rings
Adjustment for different types of end-fitting couplings
Dry arc distance, mmAC wet withstand voltage, kVLightning impulse withstand voltage, kVNet weight, kg (Approx.)
-50-10*-25
-70-15**
-35+2.5 kg
-140-25***
-75+7 kg
ShedType
SS
SLSE
08
0901
85
9515
41
Applicable Drv Arc Distance (DAD)
(Example of Cat. #)For 210 kN SML, Ball & Socket,86 SS sheds, 345 kV application:
E212-SS860-SB-41
* : DAD > approx. 1.5 m** : DAD > approx. 2 m*** : DAD > approx. 2.5 m
TypicalSystemVoltage
NGK-Locke Polymer Insulators, Inc.
12
IEC 160 kN Class / SC, SS and SL Sheds Series
Applied Standard: IEC Pub. 61109 latest issue
100
- 138
kV
220
- 230
kV
Catalog No. Section length, mm Nominal creepage Dry arc ApproximateTypicalSystemVoltage
Shed Suffix #
SCSLSE
Maximum nominalshed diameter D,mm
76140
E168-SC310-EB
E168-SS310-EB
E168-SL310-EB
E168-SC350-EB
E168-SS350-EB
E168-SL350-EB
E168-SC390-EB
E168-SS390-EB
E168-SL390-EB
E168-SC410-EB
E168-SS410-EB
E168-SL410-EB
E168-SC450-EB
E168-SS450-EB
E168-SL450-EB
E168-SC500-EB
E168-SS500-EB
E168-SL500-EB
E168-SC550-EB
E168-SS550-EB
E168-SL550-EB
E168-SC590-EB
E168-SS590-EB
E168-SL590-EB
E168-SC640-EB
E168-SS640-EB
E168-SL640-EB
E168-SC690-EB
E168-SS690-EB
E168-SL690-EB
E168-SC740-EB
E168-SS740-EB
E168-SL740-EB
E168-SC780-EB
E168-SS780-EB
E168-SL780-EB
4.4
5.1
6.4
4.6
5.4
7
4.9
5.8
7.5
5
6
7.8
5.3
6.3
8.3
5.6
6.7
8.9
6
7.2
9.6
6.2
7.5
10.1
6.6
8
10.8
6.9
8.4
11.5
7.2
8.8
12.1
7.5
9.2
12.6
2201
2673
3471
2485
3016
3917
2769
3359
4363
2911
3531
4586
3195
3874
5032
3550
4288
5575
3905
4731
6147
4189
5074
6593
4544
5488
7136
4899
5932
7708
5254
6346
8251
5538
6689
8697
1341
1462
1582
1642
1762
1912
2062
2182
2332
2483
2633
2753
974
1094
1214
1274
1394
1544
1695
1815
1965
2115
2265
2385
325
360
390
405
435
475
510
535
570
600
630
655
560
625
690
725
790
870
950
1015
1150
1175
1260
1325
Suspension Insulators
NGK-Locke Polymer Insulators, Inc.
13
345
kV
400
- 500
kV
Catalog No. Section length, mm Nominal creepage Dry arc ApproximateTypicalSystemVoltage
E168-SC810-EB
E168-SS810-EB
E168-SL810-EB
E168-SC850-EB
E168-SS850-EB
E168-SL850-EB
E168-SC890-EB
E168-SS890-EB
E168-SL890-EB
E168-SC910-EB
E168-SS910-EB
E168-SL910-EB
E168-SC950-EB
E168-SS950-EB
E168-SL950-EB
E168-SC990-EB
E168-SS990-EB
E168-SL990-EB
E168-SC1010-EB
E168-SS1010-EB
E168-SL1010-EB
E168-SC1050-EB
E168-SS1050-EB
E168-SL1050-EB
E168-SC1100-EB
E168-SS1100-EB
E168-SL1100-EB
7.7
9.5
13.1
7.9
9.8
13.6
8.2
10.2
14.1
8.3
10.3
14.4
8.6
10.7
14.9
8.9
11
15.4
9
11.2
15.7
9.3
11.6
16.2
9.6
12
16.9
5751
6961
9046
6035
7304
9492
6319
7647
9938
6461
7818
10161
6745
8161
10607
7029
8504
11053
7171
8676
11276
7455
9019
11722
7810
9433
12265
2843
2963
3083
3143
3263
3384
3444
3564
3714
2475
2596
2716
2776
2896
3016
3076
3196
3346
670
695
715
725
745
765
775
795
820
1370
1435
1500
1535
1600
1665
1695
1760
1840
Suspension Insulators
NOTES:–The above adjustments electrical values are just for guided ones because of
non-linearity of electrical characteristics.–For more detailed values and end-fitting availability, contact NGK.
SML Rating
160 kN
Cat.# suffix (E__-)
E168-
Applicable standard Catalog # suffix ofgrading rings
Adjustment ofTabular values
with no gradingrings
Ball Coupling
IEC 20
Adjustment for electrical values when equipping grading rings
Dry arc distance, mmAC wet withstand voltage, kVLightning impulse withstand voltage, kVNet weight, kg (Approx.)
-50-10*-25
-70-15**
-35+2.5 kg
-140-25***
-75+7 kg
ShedType
SC
SSSL
08
09
85
9541
Applicable Drv Arc Distance (DAD)
* : DAD > approx. 1.5 m** : DAD > approx. 2 m*** : DAD > approx. 2.5 m
(Example of Cat. #)For 160kN SML, Ball & Eye, 85SSsheds, 345kV application
E168-SS850-EB-41
NGK-Locke Polymer Insulators, Inc. Suspension InsulatorsIEC 300 kN Class / SS, SL and SE Sheds Series
14
345
kV
Catalog No. Section length, mm Nominal creepage Dry arc ApproximateTypicalSystemVoltage
E302-SS690-CC
E302-SL690-CC
E302-SE690-CC
E302-SS810-CC
E302-SL810-CC
E302-SE810-CC
E302-SS910-CC
E302-SL910-CC
E302-SE910-CC
E302-SS1000-CC
E302-SL1000-CC
E302-SE1000-CC
E302-SS1090-CC
E302-SL1090-CC
E302-SE1090-CC
E302-SS1170-CC
E302-SL1170-CC
E302-SE1170-CC
E302-SS1310-CC
E302-SL1310-CC
E302-SE1310-CC
E302-SS1410-CC
E302-SL1410-CC
E302-SE1410-CC
E302-SS1530-CC
E302-SL1530-CC
E302-SE1530-CC
14.0
17.4
20.4
15.4
19.4
22.8
16.6
21.0
24.9
17.6
22.5
26.7
18.7
24.0
28.6
19.6
25.3
30.3
21.2
27.6
33.1
22.3
29.2
35.2
23.7
31.2
37.7
5932
7708
9002
6961
9046
10565
7818
10161
11868
8575
11150
13025
9362
12168
14212
10048
13060
15254
11248
14621
17078
12106
15736
18380
13135
17074
19943
2610
2970
3271
3541
3811
4052
4472
4772
5133
2129
2489
2790
3054
3330
3570
3991
4291
4652
600
675
730
775
820
855
920
960
1010
1185
1380
1540
1685
1835
1960
2190
2350
2545
400
kV50
0 kV
NOTES:–The above adjustments electrical values are just for guided ones because of
non-linearity of electrical characteristics.–For more detailed values and end-fitting availability, contact NGK.
SML Rating
300 kN
Cat.# suffix (E__-)
E302-
Applicable standard Catalog # suffix ofgrading rings
Adjustment ofTabular values
with no gradingrings
Clevis Coupling
IEC 60471 25L
Adjustment for electrical values when equipping grading rings
Dry arc distance, mmAC wet withstand voltage, kVLightning impulse withstand voltage, kVNet weight, kg (Approx.)
-50-10*-25
-70-15**
-35+2.5 kg
-140-25***
-75+7 kg
ShedType
SS
SLSE
09
01
95
1541
Applicable Drv Arc Distance (DAD)
(Example of Cat. #)For 300 kN SML, Clevis & Clevis,153 SL sheds, 500 kV application:
E302-SL1530-CC-95
* : DAD > approx. 1.5 m** : DAD > approx. 2 m*** : DAD > approx. 2.5 m
230
kV
Applied Standard: IEC Pub. 61109 latest issue
Shed Suffix #
SSSLSE
Maximum nominalshed diameter D,mm
114140
NGK-Locke Polymer Insulators, Inc. Suspension InsulatorsStandard Insulation Level (Reference)
(52 kV ! Um<300 kV : IEC Pub. 60071)
(Um " 300 kV : IEC Pub. 60071)
15
Highest voltage for equipment,
Um (r.m.s.)
Highest voltage for equipment,
Um (r.m.s.)
Base for p.u. values
(peak)
Rated lightning impulse withstand
voltage (peak)
Rated power frequency short duration withstand
voltage
1 2 3 4
kV kV kV kV
Rated switching impulse withstand
voltage (peak)
Rated lightningimpulse withstand
(peak)
1 2 3 4
kV kV kV kV
52
72.5
123
145
170
245
42.5
59
100
118
139
200
250
325
450
550
650
750
850
950
1050
750
850
950
1050
1175
1300
1425
1550
850
950
1050
1175
1300
1425
1550
1800
1950
2100
2400
300
362
420
525
765
245
296
343
429
625
95
140
185
230
275
325
360
395
460
""
23
Um
Base for p.u. values
(peak)
""
23
Um
NGK-Locke Polymer Insulators, Inc. Line Post Insulators
16
L 2 - S N 4 7 1 - 1 3 - WLine Post Insulator Catalog Number System
Corona Ring Recommendation
Type ofInsulator
L : Line Post
Numberof Sheds
Core Dia.1 : ø44mm2 : ø63mm3 : ø76mm4 : ø88mm
Shed ShapeSN : Standard LeakageSL : High Leakage
Line End-Fitting1 : Drop Tongue2 : Clamp Top, Horizontal4 : Clamp Top, Vertical5 : 127mm Bolt Circle (Short)6 : 127mm Bolt Circle (Long)R : Clevis
Suffix code for end fitting is alsonoted in end fitting details section.
Corona Ring for 345 kVPart # : LC215/LC315/LC415
Design Variation
230 kV
345 kV
Line Side
LC211
LC215
Tower Side
None
None
Catalog #
- W
- X
Line Side
LC311
LC315
Tower Side
None
None
Line Side
None
LC415
Tower Side
None
None
Mounting Base1 : Rigid Curved Base2 : Rigid Flat Base3 : Bendable Curved Base5 : 127mm Bolt Circle (Long)6 : 3/4”-10 UFS Stud Base7 : 7/8”-9 UFS Stud Base8 : Bendable Flat BaseR : Clevis
Grading Ring ApplicationNone : 161kV & BelowW : 230 kVX : 345 kV
Mounting Arm
Energized End Fitting
Corona Ring
This spherical surfacemust face the rubberweathershed.
Front View
Bottom View
Side View
Cap Screw1/2” - 13 UNC
Stop RingClampSpring Washer
Nut
Corona Ring for 230 kVPart # : LC211 / LC311
For more detailed information, contact NGK.
Unit: mm
NGK-Locke Polymer Insulators, Inc. Line Post Insulators
17
Maximum Design Cantilever Load (MDCL)The strength rating of line post insulators is usually designated as cantilever strength because of the structural application intransmission lines. And since the cantilever strength is decided by the bending movement applied to the insulator, the ratingvaries as the length of insulator changes in the same core size. MDCL is the mechanical rating of the line post insulators.The general relation of MDCL, insulator length, and typical system voltage is shown below.
General Application of Line Post Insulators
Typical System Voltage
ø 44m Polymer LP
Typical PolymerLine Post Applications
ø 63mm Polymer LP
ø 76mm Polymer LP
115 kV
ø 63
ø 76
161 kV
69 kV
ø 44
138 kV 230 kV 345 kV
10
5
0
MDLC
,kN
0.5 1 1.5 2 2.5 3
ø 88mm Polymer LP
ø 88Braced LP / Horizontal Vee
Dry Arching Distance, m
NGK-Locke Polymer Insulators, Inc. Line Post Insulators
18
ø44mm Vertical Line Post Insulator for 69 kV
Line End-Fitting1 : Drop Tongue2 : Clamp Top, Horizontal4 : Clamp Top, Vertical
Mounting Base(Type of Base, Hole Spacing, Hole Size)1 : Rigid Curved Base6 : 3/4”-10 UFS Stud Base7 : 7/8”-9 UFS Stud Base
Suffix code for end fitting is alsonoted in end fitting details section.
135
84
19
25
25x38SLOT
20
13
127
22
353 305 2
54
109
11
L 1 - S N 1 5 1 - 4 7ø44mm LINE POST CATALOG NUMBER SYSTEM
NGK-Locke Polymer Insulators, Inc. Line Post Insulators
19
* The tests are comply with IEC Pub. 61952.** MDCL is 50% of the minimum average cantilever breaking load.
46
46
46/69
69
69
69
69
L1-SN091-21
L1-SN111-21
L1-SN131-21
L1-SN151-21
L1-SN171-21
L1-SN191-21
L1-SN211-21
9
11
13
15
17
19
21
330
390
450
510
570
630
690
115
130
150
165
180
200
215
185
215
245
280
310
340
375
6.7
5.8
5.1
4.5
4.1
3.7
3.4
8.9
9.3
9.7
10.1
10.6
11.0
11.4
879
1071
1263
1455
1647
1839
2031
Tensile Mechanical RatingSML Min RTL
Drop Tongue: 44.4 kN 22.2 kNClamp Top: 22.2 kN 11.1 kN
TypicalSystemVoltage
kV
No. ofSheds
ArcingDistance
mm
LeakageDistance
mm
CatalogNumber
MaximumDesign
CantileverLoad**(MDCL),
kN
ApproximateWeight,
kg
Wet PowerFrequency
Withstand,*kV
Dry LightningImpulse
Withstand,*kV
44mm CoreStandard Leakage Shed (SN) Series
Horizontal Line PostRigid Curved Base Mounting
(Cat. No. L1-SNXX1-21)
NGK-Locke Polymer Insulators, Inc. Line Post Insulators
20
Line End-Fitting1 : Drop Tongue2 : Clamp Top, Horizontal4 : Clamp Top, Vertical5 : Flange with 127mm Bolt Circle (Short)6 : Flange with 127mm Bolt Circle (Long)R : Clevis
Mounting Base(Type of Base, Hole Spacing, Hole Size)1 : Rigid Curved Base, 305, 242 : Rigid Flat Base, 305, 243 : Bendable Curved Base, 305, 25 (LA230-B)5 : Flange with 127mm Bolt Circle (Long)7 : 7/8"-9 UFS Stud Base8 : Bendable Flat Base, 305, 25 w/4-21 (LA231-B)R : ClevisSuffix code for end fitting is also
noted in end fitting details section.
ø63mm LINE POST CATALOG NUMBER SYSTEM
L 2 - S N 4 7 1 - 1 3 - W
NGK-Locke Polymer Insulators, Inc. Line Post Insulators
21
63mm Core Polymer Line Post / End Fitting
Variety of End Fittings for Line Side
Drop Tongue Horizontal Clamp Top Vertical Clamp Top Flange Clevis
Variety of End-Fittings for Line Side
Rigid Curved Base Rigid Flat Base Flange Base
Bendable Curved Base Bendable Flat Base
A
305
305
B
360
360
C
127
102
D
210
254
E (ø)
25
25
G
–
254
H
–
203
J
12°
12°
I
–
21 x 25
F (Slot)
25 x 38
25 x 38
The coupling dimensions arein accordance withANSI C29.7 - 1992.
The coupling dimensions arein accordance withANSI C29.7 - 1992.
(Units: mm)
Dimensions
Bendable Curved Base (LA230-B) [-3]
Bendable Flat Base (LA231-B) [-8]
ø21
[1-]
[-2]
[-See list below] [-See list below]
[-1] [-5]
[2-] [4-] [5-] [R-]
NGK-Locke Polymer Insulators, Inc. Line Post Insulators63mm Core – Standard Leakage Shed (SN) Series
22
* The tests comply with IEC Pub. 61952.** MDCL is 50% of the minimum average cantilever breaking load.
69
69/115
69/115
115
115/138
115/138
138
161
161
230
230
230
230
195
245
280
315
360
385
425
450
485
515
545
575
600
325
405
465
545
620
675
755
815
895
970
1050
1125
1185
12.7
10.6
9.6
8.5
7.4
6.8
6.1
5.7
5.2
4.8
4.4
4.1
3.9
23.3
24.9
26.1
27.8
29.4
30.7
32.3
33.5
35.2
36.8
38.5
40.1
41.3
L2-SN141-13
L2-SN181-13
L2-SN211-13
L2-SN251-13
L2-SN291-13
L2-SN321-13
L2-SN361-13
L2-SN391-13
L2-SN431-13
L2-SN471-13
L2-SN511-13
L2-SN551-13
L2-SN581-13
14
18
21
25
29
32
36
39
43
47
51
55
58
816
963
1073
1220
1366
1476
1623
1733
1880
2027
2173
2320
2430
567
717
830
980
1130
1242
1392
1505
1655
1805
1995
2105
2217
1470
1890
2205
2625
3045
3360
3780
4095
4515
4935
5335
5775
6090
TypicalSystemVoltage
kV
No. ofSheds
“X”Length
mm
ArcingDistance
mm
LeakageDistance
mm
CatalogNumber
MaximumDesign
CantileverLoad**(MDCL),
kN
ApproximateWeight,
kg
Wet PowerFrequency
Withstand,*kV
Dry LightningImpulse
Withstand,*kV
The dimensions are in millimeters.
Alternate End Fitting
Corona Ring Application
Horizontal
230 kV
Tensile Mechanical RatingSML Min RTL
Drop Tongue: 66.7 kN 33.4kNClamp Top: 22.2kN 11.1 kN
NGK-Locke Polymer Insulators, Inc. Line Post Insulators
23
63 mm Core – High Leakage Shed (SL) Series
* The tests comply with IEC Pub. 61952.** MDCL is 50% of the minimum average cantilever breaking load.
69
69/115
69/115
115
115/138
115/138
138
161
161
230
230
230
230
195
240
280
315
360
390
425
455
485
515
545
575
600
325
405
465
545
620
680
760
825
900
960
1040
1120
1180
12.9
10.7
9.6
8.5
7.4
6.8
6.1
5.6
5.1
4.8
4.5
4.2
3.9
23.8
25.6
27.1
28.9
30.7
32.2
34.1
35.5
37.3
38.8
40.6
42.4
43.9
L2-SL171-13
L2-SL221-13
L2-SL261-13
L2-SL311-13
L2-SL361-13
L2-SL401-13
L2-SL451-13
L2-SL491-13
L2-SL541-13
L2-SL581-13
L2-SL631-13
L2-SL681-13
L2-SL721-13
17
22
26
31
36
40
45
49
54
58
63
68
72
809
955
1073
1220
1366
1484
1630
1748
1895
2012
2159
2305
2423
560
710
830
980
1130
1250
1400
1520
1670
1790
1940
2090
2210
1750
2244
2652
3178
3672
4080
4606
5014
5508
5916
6442
6936
7344
No. ofSheds
“X”Length
mm
ArcingDistance
mm
LeakageDistance
mm
CatalogNumber
ApproximateWeight,
kg
Wet PowerFrequency
Withstand,*kV
Dry LightningImpulse
Withstand,*kV
The dimensions are in millimeters. Tensile Mechanical RatingSML Min RTL
Drop Tongue: 66.7 kN 33.4 kNClamp Top: 22.2 kN 11.1 kN
Alternate End Fitting
Horizontal
230 kV
Corona Ring Application
MaximumDesign
CantileverLoad**(MDCL),
kN
TypicalSystemVoltage
kV
NGK-Locke Polymer Insulators, Inc. Suspension Insulators
24
L 3 - S N 4 7 1 - 1 3 - W
157
26
19
103
26x38SLOT
21
356
356
Line End-Fitting1 : Drop Tongue2 : Clamp Top, Horizontal
Mounting Base(Type of Base, Hole Spacing, Hole Size)3 : Bendable Curved Base, 356, 27 (LA301-B)8 : Bendable Flat Base, 356, 27 w/4-24x28,
(LA302-B)Suffix code for end fitting is alsonoted in end fitting details section.
ø76mm LINE POST CATALOG NUMBER SYSTEM
Note: Flange base is available upon request. For more detailed information, contact NGK.
NGK-Locke Polymer Insulators, Inc. Line Post Insulators76mm Core – Standard Leakage Shed (SN) Series
25
The dimensions are in millimeters
* The tests are comply with IEC Pub. 61952.** MDCL is 50% of the minimum average cantilever breaking load.
69
115
138
161
161
230
230
230
230
230
230
L3-SN231-13
L3-SN301-13
L3-SN341-13
L3-SN391-13
L3-SN441-13
L3-SN471-13
L3-SN501-13
L3-SN531-13
L3-SN581-13
L3-SN611-13
L3-SN641-13
1180
1431
1574
1754
1933
2041
2148
2256
2435
2543
2650
23
30
34
39
44
47
50
53
58
61
64
905
1168
1318
1505
1693
1805
1918
2030
2218
2330
2443
2588
3375
3825
4388
4950
5288
5625
5963
6525
6863
7200
300
370
405
450
490
515
540
565
600
620
640
505
635
715
815
910
970
1025
1090
1185
1245
1300
14.3
11.3
10.1
8.9
8.0
7.5
7.1
6.7
6.2
5.9
5.6
38.0
41.9
44.2
47.1
49.9
51.6
53.4
55.1
57.9
59.6
61.3
Tensile Mechanical RatingSML Min RTL
Drop Tongue: 66.7 kN 33.4 kNClamp Top: 22.2 kN 11.1 kN
Alternate End Fitting
Horizontal
230 kV
Corona Ring Application
TypicalSystemVoltage
kV
No. ofSheds
“X”Length
mm
ArcingDistance
mm
LeakageDistance
mm
CatalogNumber
MaximumDesign
CantileverLoad**(MDCL),
kN
ApproximateWeight,
kg
Wet PowerFrequency
Withstand,*kV
Dry LightningImpulse
Withstand,*kV
L 4 - S N 6 2 1 - 1 3 - X
356
356
Line End-Fitting1 : Drop Tongue2 : Clamp Top, Horizontal
Mounting Base(Type of Base, Hole Spacing, Hole Size) 3 : Bendable Curved Base, 356, 27 (LA405-B)8 : Bendable Flat Base, 356, 27, w/4-24x32
(LA406-B)Suffix code for end fitting is alsonoted in end fitting details section.
NGK-Locke Polymer Insulators, Inc. Line Post Insulators
26
176.5
108
26x38.526
25.4
21
356
ø88mm LINE POST CATALOG NUMBER SYSTEM
Note: Flange base is available upon request. For more detailed information, contact NGK.
27
NGK-Locke Polymer Insulators, Inc. Line Post Insulators
* The tests comply with IEC Pub. 61952.** MDCL is 50% of the minimum average cantilever breaking load.
69/115
115
115/138
138
161
161
230
230
230
345
345/500
300
345
385
425
450
490
540
585
630
685
740
505
600
675
755
815
910
1025
1145
1260
1415
1595
21.9
18.5
16.4
14.8
13.7
12.3
10.9
9.8
8.9
8.0
7.1
60.7
64.3
67.3
70.2
72.3
75.9
80.3
84.6
88.9
94.7
101.2
L4-SN231-13
L4-SN281-13
L4-SN321-13
L4-SN361-13
L4-SN391-13
L4-SN441-13
L4-SN501-13
L4-SN561-13
L4-SN621-13
L4-SN701-13
L4-SN791-13
23
28
32
36
39
44
50
56
62
70
79
1223
1404
1549
1693
1802
1983
2201
2418
2635
2925
3251
905
1093
1243
1393
1505
1693
1918
2143
2368
2668
3005
2588
3150
3600
4050
4388
4950
5625
6300
6975
7875
8888
Tensile Mechanical RatingSML Min RTL
Drop Tongue: 66.7 kN 33.4 kNClamp Top: 22.2 kN 11.1 kN
88mm CoreStandard Leakage Shed (SN) Series
TypicalSystemVoltage
kV
No. ofSheds
“X”Length
mm
ArcingDistance
mm
LeakageDistance
mm
CatalogNumber
MaximumDesign
CantileverLoad**(MDCL),
kN
ApproximateWeight,
kg
Wet PowerFrequency
Withstand,*kV
Dry LightningImpulse
Withstand,*kV
28
NGK-Locke Polymer Insulators, Inc.
Packaging
All of NLPI’s insulators are packed in weatherproof containers in order to protect the products dur-ing land, air, and sea transportation. Several different grades of packaging can be offered depend-ing on the mode of transport and the expected storage conditions. The packaging options that weoffer are shown below. Since the user best knows their crate requirements, they should select theoption that is most suited to their needs and include that information in the purchasing specifica-tion. Special packaging arrangements can be accommodated upon request.
Each container is marked with the number of insulators it contains, the catalog number, descriptionof the containers, the manufacturer’s name, and any other customer requests. Also, a “PolymerInsulator Handling Instruction” sheet is included with all containers. This sheet states any neces-sary cautions during handling, transportation, and installation. If corona rings are to be included, acorona ring installation sheet is also provided.
Standard Grade: Prefabricated PackagingSuitable for:• Moderate Amount of Handling• Outdoor Storage• Careful Stacking
Superior Grade: Closed Wooden CrateSuitable for:• Excessive Amount of handling• Long Term Outdoor Storage• Crate Stacking• Large Quantities of Large Insulators• Transportation over Rough Roads
U.S.A.N GK-Locke, Inc.2525 Insulator DriveBaltimore , Maryland 21230, U.S. A.Te l: +1(410) 347-1700 Fax: +1(410) 347-1724
CanadaN GK Insulators of Canada, Ltd.Toronto Office2700 Matheson B lvd. East, Suite 700 East Tow er, M ississauga L4W 4V9, Ontario, CanadaTe l: +1(905) 602-1266 Fax: +1(905) 238-8247
Montreal Office1501, avenue McG ill College Bureau 515 Montreal (Quebec) H3A 3M8, CanadaTe l: +1(514) 281-8488 Fax: +1(514) 281-8596
EuropeN GK Europe, S.A .Rue d’Herchies 184, B-7331 Baudour, Be lgiumTe l: +32(65) 76-1440 Fax: +32(65) 64-3554
All Other Countries N GK Insulators, Ltd.Overseas DepartmentMarunouchi B ldg. 25F2-4-1, Marunouchi, Chiyoda-ku,Tokyo 100-6325, JapanTe l: 81(3) 6213-8813 Fax: 81(3) 6213-8888
NGK INSULATORS, LTD.
NGK-Locke Polymer Insulators, Inc.1609 D iamond Springs Road, Virginia Beach, Virginia 23455, U.S. A.
Te l: +1(757) 460-3649 Fax: +1(757) 460-3550
M A02005