Directly Molded Polymer Surge ArrestersIdeal means to reduce environmental impactUp to 420kV, Comply with IEC60099-4, Line discharge class 2-4

l Long-life performance (Hydrophobic silicone rubber)l Application of environment-friendly materials Lead free materials usedl Safer short-circuit performance (directly molded structure)l Short lead time (Self manufacturing of arrester housing and ZnO elements)l Less transportation load  during delivery and material purchasing (lightweight design) l Easy installation without special equipment  and can be used with simple support structures  (lightweight design)

http://www.toshiba-arrester.com

Excellent ZnO elementstechnolo gies

Directly molded polymer surge arresters for the reduction of environmental impacts. As concern about global warming and environmental destruction increases, there is growing

Silicone rubber directly molding

lLong-life cycle design-Ideal designs and development and verification by sophisticated analysis techniques.

-Improved pollution characteristics by hydrophobic silicone rubber

-Improved water resistance by silicone rubber and ZnO elements (Lead-free glass is used on the side-surface insulator)

Operation

DevelopmentVerification

Manufacturing

TransportationInstallation

lImproved safety for nearby operators and equipment-No gas space in the arrester housing and pressure relief by splitting the silicone rubber

lImproved fire safety after pressure relief-Self fire-extinguishing in emergency case of pressure relief by using high quality fire-retardant silicone rubber

lImproved protective characteristics by adjacent installation-The expectation of longer life cycle of protective equipment thanks to improved protection by adjacent installation

lReduction of environmental impact during manufacturing-Reduction of environmental impact during purchasing transportation (Application of lightweight materials)

-The application of silicone housing which does not need high-temperature sintering during manufacturing

lReduction of manufacturing lead time-Self-manufacturing of ZnO elements and self molding of silicone housing

lManufacturing for long-life cycle-Quality control by ISO9001 and ISO14000 certified manufacturing line

lEasy installation

lReduction of environmental impact during delivery transportation - Compact and lightweight design

- No need for special heavy equipment during installation- Application possibility of simple support structure

demand to reduce the environmental impact caused by power transmission and distribution features and reduced environmental impact from manufacturing to operation, by using its equipment. Toshiba supplies directly molded polymer surge arresters with leading manufacturing surge arresters since 1900.excellent ZnO elements and silicone molding technologies based on its experience of

� �

Toshiba’s polymer surge arresters have low environmental impact thanks to the use of silicone rubber which remains hydrophobic throughout its life cycle (Fig. 1), consequently a continuous conductive layer is not formed on the surface of surge arresters by moisture and/or pollution materials. Therefore, the surge arresters continue to show optimum performances even under extreme environmental conditions with heavy pollution, or in industrial, coastal or desert areas. In addition, the surge arrester have been made highly water resistant by applying water-resistant glass to the side-surface insulator (Fig. 2) and using water-resistant silicone rubber (Lead-free glass for the glass coating is another environmental benefit.) The best seal strength of silicone rubber is achieved by optimal selection and application of primer. These long life cycle performances have been fully verified by detailed evaluations such as pollution tests, boiling tests in salt water (Fig. 3), long-term life performance tests in a coastal area (Fig. 4), heat-cycle tests, and other tests.

Toshiba’s polymer surge arresters, feature directly molded silicone rubber housing instead of the conventional porcelain housing. Since silicone rubber is approximately 50% lighter than a porcelain housing, environmental impact during transportation of purchased materials is significantly reduced. We also substantially reduced the size and weight of the surge arresters compared with porcelain surge arresters by applying ZnO elements with high energy absorption capability and the silicone directly mold structure. Therefore, the environmental impact during transportation for delivery is significantly reduced. Figure 5 compares porcelain and polymer surge arresters for the 245kV system. The weight is reduced from 170 kg to 75kg and the height is also reduced with maintaining proper creepage distance because the complicated shed design was achieved by silicone injection.

Toshiba’s polymer surge arresters have a structure in which an internal section with stacked ZnO elements is directly molded by silicone rubber. Because there is no gas space in the arresters and thanks to the suitable design of the internal section, pressure is successfully relief by splitting the silicone rubber, thus preventing the internal parts from bouncing out in emergency case of a short-circuit caused by a surge arrester failure (Fig. 6). This feature ensures the safety of nearby operators and equipment during pressure relief. In addition, the use of high-quality incombustible silicone rubber makes the surge arresters self-extinguishing soon after pressure relief.

Toshiba’s surge arresters do not require special heavy equipments thanks to their compact and light weight design, making installation easier. In some case, in addition to simplification of support structure (Fig. 7), the support structure for adjacent equipments wad also used (Fig. 8). The safer pressure relief of the Toshiba polymer surge arresters enables them to be installed near other equipments.

The delivery lead time of Toshiba’s polymer surge arresters has been reduced by self-manufacturing of ZnO elements (Fig. 9) and silicone molding. They are manufactured in ISO9001 and ISO14000 certified manufacturing lines under a strict quality and environmental control system.

Our highly experienced development staff develop and design Toshiba’s polymer surge arresters with using pioneering analysis techniques. The flow of silicone rubber during injection (Fig. 10) is also analyzed and the best injecting condition is obtained. These manufacturing technologies result in long life cycle performance in the field.

1. Features of Toshiba polymer surge arrestersLong life cycle design

Safer short-circuit properties for nearby operators and equipment. Excellent fire extinguishing after a short-circuit

Easy installation and application possibility of simple supportstructure

Shorter manufacturing lead time and manufacturing certified by ISO9001, ISO14000 under strict quality control

Fig. 1. Hydrophobicity of silicone rubber

Fig. 3 View of boiling testFig. 2 Applied ZnO elements Fig. 4 Long-term life performance tests

Fig.5 Comparison on the surge arrester with the rated voltage of 192kV

Fig. 6 View of short circuit test Fig. 7 Example of simple support structure Fig. 8 Utilization of support structure of adjacent equipment

Fig. 9 Manufacturing facilities for ZnO elements

Reduction of environmental impact during transportation of purchased materials and delivery of surge arresters

Porcelain type Polymer type

170kg

75kg

4 �

Development using pioneering analysis technologies

Fig. 10 Example of the analysis of silicone rubber

Toshiba’s directly molded polymer surge arresters, which are the gapless ZnO element type, comply with the IEC standard (IEC60099-4) and other relevant standards. These surge arresters cover the system voltages up to 420kV and IEC line discharge class from class-2 to class-4 as summarized in Fig. 11. Three types, the rotated machine protection type, Standard type and high mechanical strength type, are available for different applications. The principal characteristics of each type of surge arrester are summarized in Table 1.

2. Performance Figure 12 shows the temporary over-voltage capability. Toshiba’s directly molded polymer surge arresters are available for all ratings. The curve represents the recommendation temporary over-voltage capability and defines the duration and magnitude of temporary over-voltages that may be applied to the surge arrester until the applied voltage reduces to the normal continuous voltage.

3. Power frequency voltage versus time characteristics

Type Unit RVLQC--R--Y� RVLQC----Y� RVLQC--H--Y� RVLQB--H--Y4

IEC Line discharge class -- � � � 4

Max. system voltage (Um) kV rms ~ �6 17.5 ~ 52 �� ~ �00 �� ~ 4�0

Max. rated voltage (UR) kV rms ~ ��.� 1� ~ 4� 4� ~ �40 4� ~ �60

Nominal discharge current kA crest 10 10 10 �0

High current impulse capability kA crest 100 100 100 100

Short cuircuitcapability

High current kA rms �0 �0 6� 6�

Low current A rms 600 600 600 600

Discharge level ratio(Residual voltage at 10kA/Rated voltage)

-- 2.7 �.4� �.4� �.�

Energy absdorption capability kJ/kV_UR 6 8 8 11

Max. bending moment Nm 1100 1100 �100 4000Notes1) Surge arresters with larger energy absorption capability are available.�) The energy absorption capability means the dissipated total energy per two shots of switching surge that the surge arrester can withstand without losing thermal stability.

Notes: 1) Surge arrester with L-D class � meets the requirements of L-D class �. �) Various surge arresters outside of this range are possible according to the customer’s needs.

Fig. 11 Covered range (system voltages and IEC line discharge class)

TOSHIBA surge arrester

Export

Family name of ZnO elements

ArresterRated voltage

Polymertype

IEC Line discharge class

RV R//H PL V Y 4LQB 192-

Designation Type of application

R Rotated machine protection

Standard

H High mechanical strength

Designation Pollution level

V Very heavy �1mm/kV

H Heavy ��mm/kV

Fig. 12 Power frequency voltage versus time characteristics (TOV)

Table 1. Rating

4. Designation of surge arrester typeThe type designation gives information about arrester rated voltage, pollution level in accordance with IEC standards, and IEC line discharge class as below. An example of the designation is given below.

Note : 1p.u. = rated voltage

6 7

Rotated machineprotection type Standard type High mechanical strength type

4�0�6��00�4�17014�1��72.5���6�6�4

17.5Less than

17.5"

IEC LineDischarge Class � � � 4

DLR(V10kA / UR) 2.7 �.4� �.4� �.�

Type Form RVLQC--R--Y� RVLQC----Y� RVLQC--H--Y� RVLQB--H--Y4

1.4

1.�

1.�

1.1

1

0.9

0.8

0.70.1 1 10 100 1000

Tem

pora

ry o

ver-

volta

ge (

p.u.

)

Permissible duration (s)

Without primary energy

With primary energy

1.4

1.�

1.�

1.1

1

0.9

0.8

0.70.1 1 10 100 1000

Tem

pora

ry o

ver-

volta

ge (

p.u.

)

Permissible duration (s)

With primary energy

Without primary energy

Line-Discharge class � Line-Discharge class 4

Max

. Sy

stem

vol

tage

(kV

)

5. Detailed characteristicsRVLQC--R--Y� (Rotated machine protection type, IEC Line discharge class �)

Rotated machine

ratedvoltage

Ratedvoltage

Continuousoperatingvoltage Line

dischargeclass

Longdurationcurrent

Max.energy

absorptioncapability

Residual voltagesat discharge current

Housing insulation(Real ability)

Height Creepagedistance

Gradingring

diameter

Number of

stackedunits

Max.permissible

serviceload

Mass(Approx.) Outline

FigureLightning current imp. 8/20 μsec. Switching surge current imp. Steep

current imp. Lightningimp.

Switchingimp.

PowerfrequencyvoltageUm Ur Uc �ms 1.�kA �kA 10kA �0kA 0.�kA 1kA �kA 10kA

kV rms kV rms kV rms A kJ/kV_Ur kVp kVp kVp kVp kVp kVp kVp kVp kVp kVp kV rms mm mm mm Nm kg

�.� 4.1 �.��

� 700 6

1�.6 13.8 14.� 16.0 11.7 1�.0 1�.6 15.7

�00 N.A. 80 �00 1�00 N.A. 1 1100 1� 1�

4.16 �.� 4.�� 1�.4 16.8 17.8 19.6 14.� 14.7 1�.� 19.1

6.6 8.3 6.73 ��.1 ��.� �6.6 �9.4 �1.4 ��.0 ��.0 28.7

10 1�.� 10.� ��.9 �6.0 37.9 41.8 �0.6 �1.4 ��.9 41.0

11 13.8 11.� ��.9 �6.0 37.9 41.8 �0.6 �1.4 ��.9 41.0

1� 1� 1�.� 37.8 41.4 4�.� 48.0 ��.1 �6.0 37.8 47.1

1�.6 15.8 12.8 40.6 44.4 46.8 �1.6 37.7 38.7 40.� �0.�

1�.� 16.� 1�.4 40.6 44.4 46.8 �1.6 37.7 38.7 40.� �0.�

13.8 17.3 14.1 40.6 44.4 46.8 �1.6 37.7 38.7 40.� �0.�

14.4 18 14.6 40.6 44.4 46.8 �1.6 37.7 38.7 40.� �0.�

1� 18.8 1�.� 4�.� 49.8 ��.4 57.8 4�.� 4�.4 4�.� 56.7

1�.4 19.� 15.7 4�.� 49.8 ��.4 57.8 4�.� 4�.4 4�.� 56.7

16 �0 16.� 4�.� 49.8 ��.4 57.8 4�.� 4�.4 4�.� 56.7

16.� 20.7 16.8 48.3 52.8 ��.6 61.4 44.8 46.0 48.2 60.1

17 �1.� 17.3 ��.� 58.2 61.� 67.6 49.4 50.7 ��.1 66.�

18 ��.� 18.3 ��.� 58.2 61.� 67.6 49.4 50.7 ��.1 66.�

19 23.8 19.� �6.0 61.� 64.� 71.2 �1.9 ��.� 55.8 69.6

�0 �� �0.� 58.1 6�.6 66.9 73.8 �4.0 ��.4 58.1 72.4

�1 �6.� �1.4 6�.0 69.0 72.5 80.0 58.5 60.0 6�.0 78.5

�� 27.5 ��.� 6�.0 69.0 72.5 80.0 58.5 60.0 6�.0 78.5

�� 28.8 ��.4 65.8 72.0 75.8 83.6 61.1 62.7 65.7 81.9

�4 �0 �4.4 75.6 82.8 87.0 96.0 70.2 72.0 75.6 94.�

�� �1.� ��.4 75.6 82.8 87.0 96.0 70.2 72.0 75.6 94.�

�6 ��.� �6.4 75.6 82.8 87.0 96.0 70.2 72.0 75.6 94.�

RVLQC----Y� (Standard type, IEC Line discharge class �)

Maximum system voltage

Ratedvoltage

Continuousoperatingvoltage Line

dischargeclass

Longdurationcurrent

Max.energy

absorptioncapability

Residual voltagesat discharge current

Housing insulation(Requirment)

Height Creepagedistance

Gradingring

diameter

Number of

stackedunits

Max.permissible

serviceload

Mass(Approx.) Outline

FigureLightning current imp. 8/20 μsec. Switching surge current imp. Steep

current imp. Lightningimp.

Switchingimp.

PowerfrequencyvoltageUm Ur Uc �ms �kA 10kA �0kA 40kA 0.�kA 1kA �kA 10kA

kV rms kV rms kV rms A kJ/kV_Ur kVp kVp kVp kVp kVp kVp kVp kVp kVp kVp kV rms mm mm mm Nm kg

17.5

1� 1�.1

� 800 8

��.1 37.2 40.8 4�.9 �9.� �0.6 31.8 40.�

9�

N.A.

38

�00 1�00

N.A.

1

1100

1� 1�

18 14.� 4�.� 4�.9 �0.� 56.7 �6.� 37.8 �9.� 49.9�1 17.0 �1.� �4.6 59.8 67.5 4�.� 44.9 46.7 �9.��4 19.4 �6.1 �9.6 6�.1 73.8 47.1 49.0 �0.9 64.6

�4�1 17.0 �1.� �4.6 59.8 67.5 4�.� 44.9 46.7 �9.�

14� �0�4 19.4 �6.1 �9.6 6�.1 73.8 47.1 49.0 �0.9 64.6

�0 �4.� 70.2 74.4 81.6 91.8 58.9 61.� 6�.6 81.0

�6�0 �4.� 70.2 74.4 81.6 91.8 58.9 61.� 6�.6 81.0

170 704� �4.0 98.3 10� 11� 1�9 82.5 85.7 89.1 114

862 �600 � �1 144� �6.4 106 11� 1�� 138 88.3 91.8 9�.4 1��

��4� �4.0 98.3 10� 11� 1�9 82.5 85.7 89.1 114

��0 9�4� �6.4 106 11� 1�� 138 88.3 91.8 9�.4 1��

Notes on detailed characteristics1) Surge arresters with other rated voltages are available according to the customer’s needs.2) Surge arresters with other specifications are available according to the customer’s needs.�) The wave shapes of switching surge and steep current impulse are as follows. - Switching surge current impulse: virtual front time greater than 30μs but less than 100μs - Steep current impulse: virtual front time of 1μs.

8 9

RVLQC--H--Y� (High mechanical strength type, IEC Line discharge class �)

Maximum system voltage

Ratedvoltage

Continuousoperatingvoltage

Line discharge

class

Longdurationcurrent

Max.energy

absorptioncapability

Residual voltagesat discharge current

Housing insulation(Requirment)

Height Creepagedistance

Gradingring

diameter

Number of

stackedunits

Max.permissible

serviceload

Mass(Approx.) Outline

FigureLightning current imp. 8/20 μsec. Switching surge current imp. Steep

current imp. Lightningimp.

Switchingimp.

PowerfrequencyvoltageUm Ur Uc �ms �kA 10kA �0kA 40kA 0.�kA 1kA �kA 10kA

kV rms kV rms kV rms A kJ/kV_Ur kVp kVp kVp kVp kVp kVp kVp kVp kVp kVp kV rms mm mm mm Nm kg

�� 4� �4.0

� 800 8

98.3 10� 11� 1�9 82.5 85.7 89.1 114 ��0 N.A. 9�

895 ���0

N.A. 1

�100

�0

1�

4� �6.4 106 11� 1�� 138 88.3 91.8 9�.4 1�� N.A.

72.5

�4 43.7 1�6 1�� 146 164 10� 110 114 14�

���

N.A.

14060 48.6 14� 1�1 16� 186 119 1�4 1�9 164 N.A.66 ��.4 1�4 16� 179 �01 1�9 1�4 1�9 177 N.A.72 58.3 169 179 196 ��1 14� 147 1�� 19� N.A. 109� �000 ��

1��96 77.7 ��4 237 �60 �9� 188 19� �0� 258

��0N.A.

��0 1�9� 3800 4010� 82.6 ��9 ��� 278 �1� �01 �09 217 276 N.A.108 87.4 ��� 267 �9� ��0 �11 ��0 228 �90 N.A.

14�

1�0 97.2 279 �96 ��4 �6� ��4 �4� ��� ���

6�0

N.A.

275149� 4��0 4�1�� 106 307 ��� 357 40� 258 268 278 ��4 N.A.

138 111 ��1 �40 373 4�0 �69 280 �91 370 N.A.

�0�� 6000

600 �

6�

16

144 116 ��6 ��6 �91 440 282 �9� �0� 388 N.A.

170

138 111 ��1 �40 373 4�0 �69 280 �91 370

750

N.A.

���144 116 ��6 ��6 �91 440 282 �9� �0� 388 N.A.1�0 1�1 ��1 372 408 4�9 �9� �06 318 40� N.A.1�6 1�6 �6� 385 4�� 475 �0� 317 ��9 419 N.A.

�4�19� 1�� 447 474 ��0 585 375 �90 40� �16

10�0N.A. 460 �4�� 7600 75198 160 461 489 ��6 60� 387 40� 418 ��� N.A.

228 184 ��� �6� 618 69� 446 464 482 61�850

N.A.2855 9100 85�00 228 184 ��� �6� 618 69� 446 464 482 61� 1175 N.A.

�40 194 557 �91 647 729 467 486 �0� 64� N.A.

RVLQB--H--Y4 (High mechanical strength type, IEC Line discharge class 4)

Maximum system voltage

Ratedvoltage

Continuousoperatingvoltage

Line discharge

class

Longdurationcurrent

Max.energy

absorptioncapability

Residual voltagesat discharge current

Housing insulation(Requirment)

Height Creepagedistance

Gradingring

diameter

Number of

stackedunits

Max.permissible

serviceload

Mass(Approx.) Outline

FigureLightning current imp. 8/20 μsec. Switching surge current imp. Steep

current imp. Lightningimp.

Switchingimp.

PowerfrequencyvoltageUm Ur Uc �ms �kA 10kA �0kA 40kA 0.�kA 1kA �kA 10kA �0kA

kV rms kV rms kV rms A kJ/kV_Ur kVp kVp kVp kVp kVp kVp kVp kVp kVp kVp kVp kV rms mm mm mm Nm kg�� 4� �4.0

4 1��0 11

9�.9 98.2 111 1�6 77.7 80.0 83.7 106 117 ��0 N.A. 9�

149� 4700 N.A. 1

4000

6� 1�

72.5

�4 43.7 1�� 1�9 14� 16� 10� 10� 110 138 1��

���

N.A.

14060 48.6 1�0 137 1�4 176 109 11� 117 147 16� N.A.66 ��.4 14� 1�0 169 19� 119 1�� 128 161 178 N.A.72 58.3 1�9 168 189 �1� 1�� 137 14� 180 199 N.A.

1��96 77.7 208 ��0 247 281 174 179 187 ��� �61

��0

N.A.��010� 82.6 ��0 ��� �61 297 184 189 198 �49 276 N.A.

108 87.4 ��� �46 276 �14 194 �00 �09 �6� �91 N.A.

14�

1�0 97.2 ��9 274 308 ��1 217 ��� ��4 �9� ��� N.A.

2751�� 106 289 �0� �4� �90 �41 248 �60 ��6 �6� N.A.138 111 �01 318 357 407 ��� ��9 271 �40 377 N.A.144 116 �1� ��1 372 4�� �6� �69 282 ��4 �9� N.A.

170

138 111 �01 318 357 407 ��� ��9 271 �40 377 N.A.

���144 116 �1� ��1 372 4�� �6� �69 282 ��4 �9� N.A.1�0 1�1 ��0 �49 �9� 446 276 284 297 373 414 N.A.1�6 1�6 �4� �6� 406 46� 286 �94 308 387 4�9 N.A.

�4�19� 1�� 41� 4�9 49� �61 347 357 374 470 ��1

10�0

N.A. 400

2855 9400 600 � 1�0 16

198 160 427 4�� 508 578 357 368 385 483 ��6 N.A.228 184 488 �16 580 660 408 4�0 440 ��� 61�

850N.A.

�00 228 184 488 �16 580 660 408 4�0 440 ��� 61� N.A.�40 194 ��0 ��0 618 704 4�� 448 469 589 6�� N.A.

�6� 276 ��� 598 6�� 711 809 �00 �1� ��9 677 750 1175 850 N.A.288 ��� 6�� 658 740 842 ��1 ��6 �61 704 781 N.A.

4�0 ��6 272 732 774 870 990 61� 6�0 660 828 918 14�� 10�0 N.A. 4�1� 14100 1400 � 160 17�60 �91 781 826 928 10�6 6�� 672 704 884 980 N.A.

Notes on detailed characteristics1) Surge arresters with other rated voltages are available according to the customer’s needs.2) Surge arresters with other specifications are available according to the customer’s needs.

�) The wave shapes of switching surge and steep current impulse are as follows. - Switching surge current impulse: virtual front time greater than 30μs but less than 100μs - Steep current impulse: virtual front time of 1μs.4) The following information is based on the surge arrester with creepage distance of �� mm/kV_Um. (Housing insulation, height, creepage distance, number of stacked units and mass.)

10 11

Fig. 19 Insulating sub-base

Note: Other types of line terminal and grounding terminal are available according to the customer’s needs.

RVLQB--H--Y4 (High mechanical strength, L-D class 4)

RVLQC--H--Y� (High mechanical strength, L-D class �)

RVLQC--R--Y�, RVLQC----Y� (Rotated machine protection, Standard)

Fig. 18 Line terminal (NEMA Type) and grounding terminal

6. Typical Outline drawings

Fig. 13 Fig. 14

Rotated machine protection and standard(RVLQC--R--Y�, RVLQC----Y�)

(Line terminal and grounding terminals)

1� 1�

Fig. 15 Fig. 16 Fig. 17

Ф15(4X)

44.5

75

44.5

15 Ф9(4X)

30 50

30 10

10

230

280

230280

M16X110(4X)

Max. permissibleDiameter = 22mm

49

209

49

209

M16X110(3X)

Max. permissibleDiameter = 22mm

Ф 240

120°

49

209

M16X100(3X)

Max. permissibleDiameter = 22mm

Ф 240

120°

Note: Details of the part circle with red broken line in Fig. 19.

High mechanical strength(RVLQC--H--Y�, RVLQB--H--Y4)

7. AccessoriesThe following special accessories can be supplied at the customer’s request.

l Surge counter

l Relay box (Type: SDC-N3R)l Disconnecting switch for surge counter(Other accessories are also available )l Leakage current measurement device (Portable)l Surge current recorder

8. MaintenanceTOSHIBA recommends that the following maintenance work be carefully performed.l Leakage current measurementl Insulating resistance measurement l Outer visual inspection

The surge arrester could fail in case of sever lightning due to over duty, therefore maintenance should be done on a fine day. The measured value should be recorded for comparison.

SDC-N4

Performance

SDC-N4A

Indication of counter 6 digit cyclometerat least � counts/sec.

Min. operating current 30A (8/20us)

Max. high current withstand capability 100kA (4/10us)

Residual voltage at 100kA(4/10us) �kV peak

Switching impulse current 4000A - �ms

Ammeter scale 0 - � mA rms (linear scale)

SDC-N4 SDC-N4A SDC-N4C SDC-N4AC

Ammeter -- Equipped -- Equipped

Relay for alarm -- -- Equipped Equipped

14 1�

http://www.toshiba-arrester.com5610-1 0903G1

The data in this catalog is subject to change without notice. (AH-G2052-08P)Published by and copyright © �009, TOSHIBA Corp.

Social Infrastructure SYSTEMS COMPANY 72-34, Horikawa-cho, Saiwai-Ku, Kawasaki 212-8585, Japan Phone: +81-44-331-1473 Fax: +81-44-548-9541 Website: www.toshiba-arrester.com