Our experience. Our products

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Opal Robinson
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Our experience With 20 years know-how in the field of Medium Voltage network protection, DERVASIL designs and manufactures lightning

Our products DERVASIL offers: A range of latest generation arresters: 5 ka or 10 ka arresters with fault indicator or disconnector.

They exhibit stable characteristics, with practically constant, very short response times (30 to 50 ns), and better behaviour under

Direct injection of Silicone Rubber ensures both absolute sealing, exceptional resistance to pollution and excellent behaviour

New range of composite insulators: suspension insulators, tension insulators and support insulators.

2 Our experience With 20 years know-how in the field of Medium Voltage network protection, DERVASIL designs and manufactures lightning arresters with zinc oxide varistors and synthetic housings. Our products DERVASIL offers: A range of latest generation arresters: 5 ka or 10 ka arresters with fault indicator or disconnector. Arresters for power follow current breaking. D.C. voltage arresters. DERVASIL arresters do not have internal spark gaps. They exhibit stable characteristics, with practically constant, very short response times (30 to 50 ns), and better behaviour under pollution. Direct injection of Silicone Rubber ensures both absolute sealing, exceptional resistance to pollution and excellent behaviour without explosion in case of short-circuit They have been tested in accordance with the latest version of IEC Standard New range of composite insulators: suspension insulators, tension insulators and support insulators. Our R & D department DERVASIL has comprehensive calculation and testing equipment for the design of lightning arresters. Our facilities are available to customers for specific applications. Our quality and environmental system DERVASIL is ISO 9001 and ISO system certified. Our production process is approved by EDF and incorporates all routine tests required by IEC Standard

3 General contents Ligthning arrester construction 5 General references index 8 AZB, AZBD, AZC series 10 ka arrester A.C medium voltage network protection 10 EZB, EZBD series AZ--T series 5 ka arrester A.C medium voltage network protection 10 ka arrester D.C medium voltage network protection Accessories 34 Composite insulators 40 Ligthning arrester specification 43 General contents

4 HIGH RELIABILITY ARRESTERS AZB / EZB / AZC SERIES Direct injection of Silicone Rubber over the internal module. This ensures both sealing of the varistor/tube interface and the geometry of external insulation to guarantee length of leakage distance. Polymeric Glass Filled Tube Polymeric Glass Filled Tube, up-sized greatly to withstand service and mounting mechanical strength requirements. Use of Silicone Rubber: The stability of the SiO molecule gives to Silicone Rubber excellent inherent resistance to UV radiation, pollution and flame without the need for of special additives. When new, Silicone material is already very hydrophobic. It has moreover the property of restoring this hydrophobic characteristic after strong electrical discharge activity due to salt fogs and pollution. The contacts between metal oxide varistors are provided by spring washers, which are specially designed to distribute lightning current impulses on the varistor surface and to increase arrester energy capability. Identification and traceability ensured by engraved marking. Substantial connecting electrodes to fix power arc feet during internal shortcircuit and thus to avoid arrester breaking down. Designed and manufactured according to quality system 2

Fiber Glass Epoxy Wrap Fiber Glass Epoxy Wrap, up-sized greatly to withstand service and mounting mechanical strength requirements.

5 HIGH MECHANICAL WITHSTAND ARRESTERS AZBD / EZBD SERIES Direct injection of Silicone Rubber over the internal module. This ensures both sealing and the geometry of external insulation to guarantee length of leakage distance. Fiber Glass Epoxy Wrap Fiber Glass Epoxy Wrap, up-sized greatly to withstand service and mounting mechanical strength requirements. Use of Silicone Rubber: The stability of the SiO molecule gives to Silicone Rubber excellent inherent resistance to UV radiation, pollution and flame without the need for of special additives. When new, Silicone material is already very hydrophobic. It has moreover the property of restoring this hydrophobic characteristic after strong electrical discharge activity due to salt fogs and pollution. Identification and traceability ensured by engraved marking. Substantial connecting electrodes to fix power arc feet during internal shortcircuit and thus to avoid arrester breaking down. ISO and environmental system ISO

6 We offer various technological solutions for over voltage protection: The energy capability of lightning arresters is not infinite. In rare cases, approximately 1 lightning strike in 10,000 exceeds this energy capability. The arrester then fails in permanent short-circuit; the line circuit breaker opens and causes definitive outage of power supply. Depending on the service quality required, the network operator has a choice between several installation systems. AZB--0/AZBD--0/AZC--0/EZB--0/EZBD--0 : Arrester module is installed alone between line and grounding bracket. In this case the network operator must deploy maintenance staff to locate and change the failed arrester. As it is not easy to identify a failed arrester from the outside, several hours may elapse before the line can be energised again. AZB--1/AZBD--1/AZC--1/EZB--1/EZBD--1: A 150 A sensitivity fault indicator is fitted with the arrester. A black silicone band is clamped around the arrester housing and is visible from several hundreds metres away. When the arrester fails, the band falls off and maintenance personnel just have to locate the arrester without black band. Outage duration is significantly reduced. This device can be utilized for networks with grounded or low ohmic neutral, with high ground fault currents. AZP--/AZBDP--/AZCP--/EZP--/EZBDP-- : For network with impedance grounded or ungrounded neutral, with low ground fault currents, we offer 15 A sensitivity fault indicator. This device is screwed onto the arrester and indicates the short-circuit by an orange signal, which is visible from a distance of several hundred metres. Maintenance staff can thus quickly locate the arrester to be changed. AZB--2/AZBD--2/AZC--2/EZB--2/EZBD--2 : Arrester module is fixed to the pole by insulating bracket. It is connected to ground by a disconnector. When shortcircuit occurs, this device disconnects the arrester. The operator can then energize line again without having to change the arrester. The power supply is restored quickly but over voltage protection is removed. The network operator must implement periodic maintenance inspection to replace disconnected arresters. AZICS--/AZCICS-- : For operators whose network is already spark gap protected, this arrester improves spark gap performances by eliminating power follow currents. There are no more spurious flashovers nor therefore micro cuts and risks to safety. This technological solution can be adapted to rigid insulators or tension insulator strings. The arrester module is supplied with arcing horn and can be directly fixed to the spark gap side. AZE--T : Fitted with specific varistors for DC voltage, this arrester is designed for over voltage protection in DC railway systems. Its high energy capability and resistance to vibrations, make it suitable for installation on locomotives. 4

7 Application Guide This guide provides recommendations for selection and application of DERVASIL lightning arresters to be used for overvoltage protection. DERVASIL Lightning Arrester Technology: DERVASIL Lightning arrester is a combination of zinc oxide varistors, internal fiber glass structure and Silicone rubber housing. DERVASIL offers two technologies. AZB / EZB /AZC series: AZBD / EZBD series: Zinc oxide varistors are connected in series with aluminium electrodes into polymeric tube. The Silicone rubber is directly injected into the tube and over the zinc oxide varistor stack. This ensures both sealing and geometry of external insulation. This construction provides both absolute sealing, exceptional resistance to pollution and excellent behaviour without explosion in case of short-circuits. Zinc oxide varistors are connected in series with aluminium electrodes to form a complete stack. This stack is tightly wrapped with glass filament impregnated with epoxy resin. This assembly is cured to form a rigid and mechanically strong rod. The Silicone rubber is directly injected over this rod and over aluminium electrodes to ensure both sealing and geometry of external insulation. This construction reduces external dimensions and weight and improves mechanical performance of lightning arresters. Basic characteristics of DERVASIL Lightning Arrester for three phase system Nominal discharge current In and line discharge class: In IEC the energy absorption capability of lightning arrester is linked to the nominal discharge current In and to the line discharge class. As a general rule, the following values of In and line class are suitable: In system where line distances between arresters are below 5 km or for areas with low ground flash density and low earth resistance, 5 ka lightning arresters may be sufficient. For areas with high lightning flash density or high earth resistance, 10 ka class 1 lightning arrester are preferable. For better protection level or for important installations 10 ka class 2 lightning arrester are recommended. For specific applications as cable or capacitor bank protection, DERVASIL experts can determine good choice. Continuous Operating Voltage Uc : Uc is the maximum permissible voltage which may be continuously applied between the lightning arrester terminals. As a general rule, Uc should be: System with solidly grounded neutral Uc higher than 0.58*Un max system U max biphased System with low ohmic neutral Uc higher than 0.87*Un max system U max biphased Neutral Neutral Z < 40 ohms 5

8 Neutre System with high impedance grounded, compensated or ungrounded neutral Uc higher than Un max system U max biphasé Uc = Umax Z > 40 ohms ou Z = infini Rated Voltage Ur : Ur is the maximum power frequency temporary voltage applied for 10s for which the lightning arrester is calculated in order to pass operating duty test (IEC standard). Ur is calculated by DERVASIL for each lightning arrester. Commonly Applied Voltage Rating of Dervasil Arrester (kv) System Line to Line Solidly Grounded Voltage (kv) Neutral Nominal Maximum Low Ohmic Neutral High impedance, compensated or Underground Neutral Lightning Impulse Protective Level The lightning impulse protective level (LIPL) of lightning arrester is the maximum residual voltage at nominal discharge current In. When lightning impulse wave reaches equipment to be protected, current discharge flows through lightning arrester and connecting cables. Overvoltage on equipment is the sum of lightning arrester residual voltage and induced voltage in cables. To warranty good protection, Protective Level of lightning arrester must be much lower than lightning impulse withstand voltage of the equipment. To take into account live ageing of insulation material, we recommend: LIPL lower than 0.6*BIL 6

9 Following Basic Insulation Levels (BIL) are defined by IEC according nominal voltage of the system. Equipment to be protected Ures < 0.6 x BIL Un (kv) BIL (kv) LIPL of Lightning Arrester Basic characteristics of DERVASIL Lightning Arrester for DC voltage Continuous Operating Voltage Ucdc : Ucdc is the maximum permissible voltage which may be continuously applied between the lightning arrester terminals. European standard EN defines several voltage values: Umax1 : Highest permanent voltage Umax2 : Highest non-permanent voltage present for maximum 300s As general rules we recommend Ucdc higher than Umax2 Following table gives Umax1, Umax2, recommended Ucdc and lightning arrester type for most frequent DC network : Nominal Voltage (V) Umax 1 (V) Umax 2 (V) Recommanded Ucdc (V) Recommanded Lightning Arrester AZE 010T AZE 012T AZE 020T AZE 040T 7

10 General references index Reference Page Reference Page Reference Page Reference Page Reference Page AZ AZB AZB AZB AZB AZB AZB AZB AZB AZB AZB AZB AZB AZB AZB AZB AZB AZB AZB AZB AZB AZB AZB AZB AZB AZB AZB AZB AZB AZB AZB AZB AZB AZB AZB AZB AZB AZB AZB AZB AZBD AZBD AZBD AZBD AZBD AZBD AZBD AZBD AZBD AZBD AZBD AZBD AZBD AZBD AZBD AZBD AZBD AZBD AZBD AZBD AZBD AZBD AZBD AZBD AZBD AZBD AZBD AZBD AZBD AZBD AZBD AZBD AZBD AZBD AZBD AZBD AZBD AZBD AZBD AZBD AZBD AZBDP AZBDP AZBDP AZBDP AZBDP AZBDP AZBDP AZBDP AZBDP AZBDP AZBDP AZBDP AZBDP AZBDP AZC AZC AZC AZC AZC AZC AZC AZC AZC AZC AZC AZC AZC AZC AZC AZC AZC AZC AZC AZC AZC AZC AZC AZC AZC AZC AZC AZC AZC AZC AZC AZC AZC AZC AZC AZC AZC AZC AZC AZCICS AZCICS AZCICS AZCICS AZCICS AZCICS AZCICS AZCICS AZCICS AZCICS AZCICS AZCICS AZCICS AZCICS AZCICS AZCICS AZCP AZCP AZCP AZCP AZCP AZCP AZCP AZCP AZCP AZCP AZCP AZCP AZCP AZE 010 T...30 AZE 012 T...30 AZE 020 T...30 AZE 030 T...30 AZE 040 T...30 AZE 050 T...30 AZE 060 T...30 AZE 080 T...30 AZICS AZICS AZICS AZICS AZICS AZICS AZICS AZICS AZICS AZICS AZICS AZICS AZICS AZICS AZICS AZICS AZNEMA...35 AZP AZP AZP AZP AZP AZP AZP AZP AZP AZP AZP AZP AZP AZPTR...34 CAP M DSIL DSIL DSIL DSIL EZB EZB EZB EZB EZB EZB EZB EZB EZB EZB EZB EZB EZB EZB EZB EZB EZB EZB EZB EZB EZB EZB EZB EZB EZB EZB EZB EZB EZB EZB EZB EZB EZB EZB EZB EZB EZB EZB EZB EZBD EZBD EZBD EZBD EZBD EZBD EZBD EZBD EZBD EZBD EZBD EZBD EZBD EZBD EZBD EZBD EZBD EZBD EZBD EZBD EZBD EZBD EZBD EZBD EZBD EZBD EZBD EZBD EZBD EZBD EZBD EZBD EZBD EZBD EZBD EZBD EZBD EZBD EZBD EZBD EZBD EZBD EZX EZX EZX RC RC RC RC ZC-B1M

11 A.C medium voltage network protection 10 ka arrester - Class 1 AZB series AZBD series 10 ka arrester - Class 2 AZC series General characteristics AZB, AZBD, AZC 10 Standard arrester AZB-0, AZBD-0, AZC-0 16 Arrester with 150 A fault indicator AZB--1, AZBD--1, AZC Arrester with 15 A fault indicator AZP--, AZBDP-, AZCP--, 18 Arrester with disconnector AZB--2, AZBD--2, AZC Arrester for power follow current breaking AZICS--, AZCICS-- 20 A.C medium voltage network protection 10 ka arrester

12 A.C medium voltage network protection 10 ka arrester - Class 1 AZB series General characteristics Tested in accordance with I.E.C standard. Zinc oxide varistors. Silicone rubber housing. 30 Outdoor and indoor use. High resistance to vibrations. High resistance to vandalism. M10 Physical characteristics Arrester type Leakage distance Height H Unit weight (kg) Insulation withstand of housing (kv) Lightning 50 Hz 60s impulse 1.2/50 µs Wet Mounting clearances AZB_ 03_ AZB_ 06_ AZB_ 09_ AZB_ 12_ AZB_ 15_ AZB_ 18_ AZB_ 21_ AZB_ 24_ AZB_ 27_ AZB_ 30_ AZB_ 33_ AZB_ 36_ AZB_ 39_ A min B min 120 A B H 10

13 A.C medium voltage network protection 10 ka arrester - Class 1 Electrical and mechanical characteristics Nominal discharge current: 10 ka 8/20 µs impulse Line discharge class: 1 High current withstand: 2 x 100 ka 4/10µs impulses Long duration current withstand: 18 x 250 A 2000 µs impulses Energy absorption capacity 1.8 kjoule/kv of Uc for one x 2000 µs impulse 4.6 kjoule/kv of Uc for one 4/10 µs impulse Rated frequency 48 to 62 Hz Service temperature - 40 C to + 40 C (+ 60 C short duration) Specified continuous load (SCL) 100 N.m Specified short term load (SSL) 250 N.m Max tension strength 1 kn Max torsion strength 30 N.m Pollution area I.E.C Short circuit rating after over voltage failure as Appendix 0 of I.E.C A for 0.2s / 600 A for 1s Temporary over voltage capability k = TOV / Uc AZB line arrester does not have spark gaps in series. The zinc oxide varistors are designed to withstand the continuous phase to ground voltage of network. They are capable of bearing increased operational voltages over a long period. The temporary over voltage characteristics give the duration T and corresponding TOV with respect to continuous voltage Uc. The curve E = 0 is valid for arresters without energy preloading. The other curve is valid for arresters, which are already absorbed impulses corresponding to their maximum energy absorption capability. TOV duration Protective characteristics Arrester type Ur Rated voltage (kvrms) Uc Continuous operating voltage (kvrms) Residual voltage wave 1/4 µs at 10 ka (kv) 2.5 ka 5 ka Residual voltage wave 8/20 µs (kv) 10 ka Nominal discharge current 20 ka 40 ka Residual voltage wave 30/80 µs 125 A 500 A (kv) AZB_ 03_ AZB_ 06_ AZB_ 09_ AZB_ 12_ AZB_ 15_ AZB_ 18_ AZB_ 21_ AZB_ 24_ AZB_ 27_ AZB_ 30_ AZB_ 33_ AZB_ 36_ AZB_ 39_

14 A.C medium voltage network protection 10 ka arrester - Class 1 AZBD series General characteristics Tested in accordance with I.E.C standard. Zinc oxide varistors. Silicone rubber housing. 30 Outdoor and indoor use. High resistance to vibrations. High resistance to vandalism. M10 High mechanical resistance. Can be used as cable support. Physical characteristics Arrester type Leakage distance Height H Unit weight (kg) Insulation withstand of housing (kv) Lightning impulse 1.2/50 µs 50 Hz 60s Wet Mounting clearances AZBD_ 03_ AZBD_ 06_ AZBD_ 09_ AZBD_ 12_ AZBD_ 15_ AZBD_ 18_ AZBD_ 21_ AZBD_ 24_ AZBD_ 27_ AZBD_ 30_ AZBD_ 33_ AZBD_ 36_ AZBD_ 39_ AZBD_ 42_ A min B min 110 A B H 12

15 A.C medium voltage network protection 10 ka arrester - Class 1 Electrical and mechanical characteristics Nominal discharge current: 10 ka 8/20 µs impulse Line discharge class: 1 High current withstand: 2 x 100 ka 4/10µs impulses Long duration current withstand: 18 x 250 A 2000 µs impulses Energy absorption capacity 1.8 kjoule/kv of Uc for one x 2000 µs impulse 4.6 kjoule/kv of Uc for one 4/10 µs impulse Rated frequency 48 to 62 Hz Service temperature - 40 C to + 40 C (+ 60 C short duration) Specified continuous load (SCL) 200 N.m Specified short term load (SSL) 350 N.m Max tension strength 15 kn Max torsion strength 70 N.m Pollution area I.E.C Short circuit rating after over voltage failure as Appendix 0 of I.E.C A for 0.2s / 600 A for 1s Temporary over voltage capability k = TOV / Uc AZBD line arrester does not have spark gaps in series. The zinc oxide varistors are designed to withstand the continuous phase to ground voltage of network. They are capable of bearing increased operational voltages over a long period. The temporary over voltage characteristics give the duration T and corresponding TOV with respect to continuous voltage Uc. The curve E = 0 is valid for arresters without energy preloading. The other curve is valid for arresters, which are already absorbed impulses corresponding to their maximum energy absorption capability. TOV duration Protective characteristics Arrester type Ur Rated voltage (kvrms) Uc Continuous operating voltage (kvrms) Residual voltage wave 1/4 µs at 10 ka (kv) 2.5 ka 5 ka Residual voltage wave 8/20 µs (kv) 10 ka Nominal discharge current 20 ka 40 ka Residual voltage wave 30/80 µs 125 A 500 A (kv) AZBD_ 03_ AZBD_ 06_ AZBD_ 09_ AZBD_ 12_ AZBD_ 15_ AZBD_ 18_ AZBD_ 21_ AZBD_ 24_ AZBD_ 27_ AZBD_ 30_ AZBD_ 33_ AZBD_ 36_ AZBD_ 39_ AZBD_ 42_

16 A.C medium voltage network protection 10 ka arrester - Class 2 AZC series General characteristics Tested in accordance with I.E.C standard. Zinc oxide varistors. Silicone rubber housing. 30 Outdoor and indoor use. High resistance to vibrations. High resistance to vandalism. M10 Physical characteristics Arrester type Leakage distance Height H Unit weight (kg) Insulation withstand of housing (kv) Lightning 50 Hz 60s impulse 1.2/50 µs Wet Mounting clearances AZC_ 03_ AZC_ 06_ AZC_ 09_ AZC_ 12_ AZC_ 15_ AZC_ 18_ AZC_ 21_ AZC_ 24_ AZC_ 27_ AZC_ 30_ AZC_ 33_ AZC_ 36_ AZC_ 39_ A min B min 120 A B H 14

17 A.C medium voltage network protection 10 ka arrester - Class 2 Electrical and mechanical characterisitcs Nominal discharge current: 10 ka 8/20 µs impulse Line discharge class: 2 High current withstand: 2 x 100 ka 4/10µs impulses Long duration current withstand: 18 x 500 A 2000 µs impulses Energy absorption capacity 5.5 kjoule/kv of Uc for 2 x 2000 µs impulses 4.6 kjoule/kv of Uc for one 4/10 µs impulse Rated frequency 48 to 62 Hz Service temperature - 40 C to + 40 C (+ 60 C short duration) Specified continuous load (SCL) 100 N.m Specified short term load (SSL) 250 N.m Max tension strength 1 kn Max torsion strength 30 N.m Pollution area I.E.C Short circuit rating after over voltage failure as Appendix 0 of I.E.C A for 0.2s / 600 A for 1s Temporary over voltage capability k = TOV / Uc 1,6 1,5 1,4 Preloaded Energy = 0 1,3 1,2 1,1 1 0,9 0,8 0,7 Preloaded Energy = max Capability 0,6 0,5 0,4 0,3 0,2 0,1 0 0, AZC line arrester does not have spark gaps in series. The zinc oxide varistors are designed to withstand the continuous phase to ground voltage of network. They are capable of bearing increased operational voltages over a long period. The temporary over voltage characteristics give the duration T and corresponding TOV with respect to continuous voltage Uc. The curve E = 0 is valid for arresters without energy preloading. The other curve is valid for arresters, which are already absorbed impulses corresponding to their maximum energy absorption capability. TOV duration Protective characteristics Arrester type Ur Rated voltage (kvrms) Uc Continuous operating voltage (kvrms) Residual voltage wave 1/4 µs at 10 ka (kv) 2.5 ka 5 ka Residual voltage wave 8/20 µs (kv) 10 ka Nominal discharge current 20 ka 40 ka Residual voltage wave 30/80 µs 125 A 500 A (kv) AZC_ 03_ AZC_ 06_ AZC_ 09_ AZC_ 12_ AZC_ 15_ AZC_ 18_ AZC_ 21_ AZC_ 24_ AZC_ 27_ AZC_ 30_ AZC_ 33_ AZC_ 36_ AZC_ 39_

18 A.C medium voltage network protection 10 ka arrester Standard arrester Can be connected to line and ground with aluminium or copper cables from 25 mm 2 up to 148 mm 2 (with or without terminal). Mounting: Vertical type installation: EZX bracket Horizontal type installation: EQ See mounting bracket section page 34. Three-arrester packaging in cardboard box. Ordering example: 300 AZB 030. AZB--0 Class 1 and AZC--0 Class 2 Ur (kvrms) Arrester reference AZB--0 Arrester reference AZC AZB 030 AZB 060 AZB 090 AZB 120 AZB 150 AZB 180 AZB 210 AZB 240 AZB 270 AZB 300 AZB 330 AZB 360 AZB 390 AZC 030 AZC 060 AZC 090 AZC 120 AZC 150 AZC 180 AZC 210 AZC 240 AZC 270 AZC 300 AZC 330 AZC 360 AZC 390 AZBD--0 Class 1 Ur (kvrms) Arrester reference AZBD--0 AZBD 030 AZBD 060 AZBD 090 AZBD 120 AZBD 150 AZBD 180 AZBD 210 AZBD 240 AZBD 270 AZBD 300 AZBD 330 AZBD 360 AZBD 390 AZBD

19 A.C medium voltage network protection 10 ka arrester Arrester with 150 A fault indicator Fault indicator is a black silicone band which is clamped around the arrester housing and is visible from a distance of several hundreds metres. When the arrester fails in short-circuit, the power arc generated inside arrester opens the housing and cuts the band, which falls on the ground. Absence of black band indicates arrester to be changed. It operates above 150 A current within 1 second. Can be connected to line and ground with aluminium or copper cables from 25 mm 2 up to 148 mm 2 (with or without terminal). Mounting: Vertical type installation: EZX bracket Horizontal type installation: EQ See mounting bracket section page 34. Three-arrester packaging in cardboard box. Indicator Ordering example: 300 AZB 031. AZB--1 Class 1 and AZC--1 Class 2 Ur (kvrms) Arrester reference AZB--1 Arrester reference AZC--1 AZB 031 AZB 061 AZB 091 AZB 121 AZB 151 AZB 181 AZB 211 AZB 241 AZB 271 AZB 301 AZB 331 AZB 361 AZB 391 AZC 031 AZC 061 AZC 091 AZC 121 AZC 151AZC 181 AZC 211 AZC 241 AZC 271 AZC 301 AZC 331 AZC 361 AZC 391 AZBD--1 Class 1 Ur (kvrms) Arrester reference AZBD--1 AZBD 031 AZBD 061 AZBD 091 AZBD 121 AZBD 151 AZBD 181 AZBD 211 AZBD 241 AZBD 271 AZBD 301 AZBD 331 AZBD 361 AZBD 391 AZBD

20 A.C medium voltage network protection 10 ka arrester Arrester with 15 A fault indicator AZP-- Class 1, AZCP-- Class 2 and AZBDP-- Class 1 The fault indicator is screwed on the arrester. By setting off an electro-thermal device, short-circuit current activates orange signal which is visible from several hundred metres. Operating sensitivity is shown in the Time-Current Curve. Can be connected to line and ground with aluminium or copper cables from 25 mm 2 up to 148 mm 2 (with or without terminal). Mounting: For transformer protection: - Vertical position on transformer tank with AZPTR bracket (See mounting bracket section page 34) - Vertical position on cross arm with AZPTR and AZNEMA brackets (See mounting bracket section page 34) - Horizontal position with AZ bracket (See mounting bracket section page 34) For cable connection protection: - Horizontal position with AZ bracket (See mounting bracket section page 34) Three-arrester packaging in cardboard box. Ordering example: 300 AZP 03. Time (s) Time current curve Fault indicator detail Operating area Operating area Current (A) "Flag opening" Ur (kvrms) Arrester reference AZP-- Arrester reference AZCP Arrester reference AZBDP AZP 03 AZP 06 AZP 09 AZP 12 AZP 15 AZP 18 AZP 21 AZP 24 AZP 27 AZP 30 AZP 33 AZP 36 AZP 39 AZCP 03 AZCP 06 AZCP 09 AZCP 12 AZCP 15 AZCP 18 AZCP 21 AZCP 24 AZCP 27 AZCP 30 AZCP 33 AZCP 36 AZCP 39 AZBDP 03 AZBDP 06 AZBDP 09 AZBDP 12 AZBDP 15 AZBDP 18 AZBDP 21 AZBDP 24 AZBDP 27 AZBDP 30 AZBDP 33 AZBDP 36 AZBDP 39 AZBDP 42 18

A.C medium voltage network protection 10 ka arrester Arrester with disconnector and insulating bracket AZB--2 Class 1, AZC--2 Class 2

In case of short-circuit, It cuts off ground connection of arrester. Operating sensitivity is shown in the Time-Current Curve.

flexible cable. Delivered with disconnector and insulating bracket.

Mounting: Vertical type installation: insulating bracket alone or AZNEMA brackets See mounting bracket section page 34.

Disconnector Bracket Time current curve Current (A) Ø12 25 20 Time (s) M10 150 Ur (kvrms) 3 6 9 12 15 18 21 24 27 30 33 36 39 42

21 A.C medium voltage network protection 10 ka arrester Arrester with disconnector and insulating bracket AZB--2 Class 1, AZC--2 Class 2 and AZBD--2 Class 1 Disconnector is connected between arrester and ground. In case of short-circuit, It cuts off ground connection of arrester. Operating sensitivity is shown in the Time-Current Curve. Can be connected to line with aluminium or copper cables from 25 mm 2 up to 148 mm 2 (with or without terminal) and to ground with flexible cable. Delivered with disconnector and insulating bracket. Arrester can be supplied with ground copper cable (cross section: 16 mm 2, length: 50 cm). Mounting: Vertical type installation: insulating bracket alone or AZNEMA brackets See mounting bracket section page 34. Three-arrester packaging in cardboard box. Ordering example: 300 AZB 032. Disconnector Bracket Time current curve Current (A) Ø Time (s) M Ur (kvrms) Arrester reference AZB--2 Arrester reference AZC--2 Arrester reference AZBD--2 AZB 032 AZB 062 AZB 092 AZB 122 AZB 152 AZB 182 AZB 212 AZB 242 AZB 272 AZB 302 AZB 332 AZB 362 AZB 392 AZC 032 AZC 062 AZC 092 AZC 122 AZC 152 AZC 182 AZC 212 AZC 242 AZC 272 AZC 302 AZC 332 AZC 362 AZC 392 AZBD 032 AZBD 062 AZBD 092 AZBD 122 AZBD 152 AZBD 182 AZBD 212 AZBD 242 AZBD 272 AZBD 302 AZBD 332 AZBD 362 AZBD 392 AZBD

22 A.C medium voltage network protection 10 ka arrester Arrester for power follow current breaking AZICS-- Class 1, AZCICS-- Class 2 AZICS / AZCICS--0: Arresters improve spark gaz performances by eliminating power follow currents. Arrester module is supplied with arcing horn and replaces one horn of spark gap. AZICS / AZCICS--1 arrester modules are installed in parallel with rigid insulators. AZICS--0 / AZCICS--0: Delivered with mounting bracket on ground side and an arcing horn. AZICS--1/ AZCICS--1: Delivered with mounting bracket on crossarm side and arcing horn. NB: Concerning connection and horn on line side, contact us. Three-arrester packaging in cardboard box. Ordering example: 300 AZICS 120. Mounting configurations Spark gap mounting AZICS--0 / AZCICS--0 Rigid insulator mounting AZICS--1 / AZCICS--1 Un (kvrms) System Ur (kvrms) Lightning arrester Arrester reference 10 ka Class 1 Arrester reference 10 ka Class 2 Arrester reference 10 ka Class 1 Arrester reference 10 ka Class AZICS 090 AZICS 120 AZICS 150 AZICS 180 AZICS 200 AZICS 240 AZICS 300 AZICS 360 AZCICS 090 AZCICS 120 AZCICS 150 AZCICS 180 AZCICS 200 AZCICS 240 AZCICS 300 AZCICS 360 AZICS 091 AZICS 121 AZICS 151 AZICS 181 AZICS 201 AZICS 241 AZICS 301 AZICS 361 AZCICS 091 AZCICS 121 AZCICS 151 AZCICS 181 AZCICS 201 AZCICS 241 AZCICS 301 AZCICS

23 A.C medium voltage network protection 5 ka arrester EZB series EZBD series General characteristics EZB, EZBD 22 Standard arrester EZB--0, EZBD Arrester with 150 A fault indicator EZB--1, EZBD Arrester with disconnector EZB--2, EZBD A.C medium voltage network protection 5 ka arrester

24 A.C medium voltage network protection 5 ka arrester EZB series General characteristics Tested in accordance with I.E.C standard. Zinc oxide varistors. Silicone rubber housing. 30 Outdoor and indoor use. High resistance to vibrations. High resistance to vandalism. M10 Physical characteristics Arrester type Leakage distance Height H Unit weight (kg) Insulation withstand of housing (kv) Lightning 50 Hz 60s impulse 1.2/50 µs Wet Mounting clearances EZB_ 03_ EZB_ 06_ EZB_ 09_ EZB_ 12_ EZB_ 15_ EZB_ 18_ EZB_ 21_ EZB_ 24_ EZB_ 27_ EZB_ 30_ EZB_ 33_ EZB_ 36_ EZB_ 39_ A min B min 120 A B H 22

A.C medium voltage network protection 5 ka arrester Electrical and mechanical characteristics Nominal discharge current: 5 ka 8/20 µs impulse High current withstand: 2 x 65 ka 4/10 µs impulse Long

25 A.C medium voltage network protection 5 ka arrester Electrical and mechanical characteristics Nominal discharge current: 5 ka 8/20 µs impulse High current withstand: 2 x 65 ka 4/10 µs impulse Long duration current withstand: 18 x 150 A 2000 µs impulse Energy absorption capacity 1.8 kjoule/kv of Uc for one x 2000 µs impulse 2 kjoule/kv of Uc for one 4/10 µs impulse Rated frequency: 48 to 62 Hz Service temperature - 40 C to + 40 C (+ 60 C short duration) Specified continuous load (SCL) 100 N.m Specified short term load (SSL) 250 N.m Max tension strengt 1 kn Max torsion strength 30 N.m Pollution area I.E.C Short circuit rating after over voltage failure as Appendix 0 of I.E.C A for 0.2s / 600 A for 1s Temporary over voltage capability 1,9 1,8 1,7 1,6 1,5 1,4 1,3 1,2 1,1 1 0,9 0,8 0,7 0,6 0,5 0,4 0,3 0,2 0,1 0 k = TOV / Uc Preloaded Energy = 0 Preloaded Energy = max Capability 0, TOV duration EZB line arrester does not have spark gaps in series. The zinc oxide varistors are designed to withstand the continuous phase to ground voltage of network. They are capable of bearing increased operational voltages over a long period. The temporary over voltage characteristics give the duration T and corresponding TOV with respect to continuous voltage Uc. The curve E = 0 is valid for arresters without energy preloading. The other curve is valid for arresters, which are already absorbed impulses corresponding to their maximum energy absorption capability. Protective characteristics Arrester type Ur Rated voltage (kvrms) Uc Continuous operating voltage (kvrms) Residual voltage wave 1/4 µs at 10 ka (kv) Residual voltage wave 8/20 µs (kv) 5 ka Nominal 2.5 ka discharge 10 ka current 20 ka 40 ka Residual voltage wave 30/80 µs at 500 A (kv) EZB_ 03_ EZB_ 06_ EZB_ 09_ EZB_ 12_ EZB_ 15_ EZB_ 18_ EZB_ 21_ EZB_ 24_ EZB_ 27_ EZB_ 30_ EZB_ 33_ EZB_ 36_ EZB_ 39_

26 A.C medium voltage network protection 5 ka arrester EZBD series General characteristics Tested in accordance with I.E.C standard. Zinc oxide varistors. Silicone rubber housing. 30 Outdoor and indoor use. High resistance to vibrations. High resistance to vandalism. M10 High mechanical resistance. Can be used as cable support. Physical characteristics Arrester type Leakage distance Height H Unit weight (kg) Insulation withstand of housing (kv) Lightning 50 Hz 60s impulse 1.2/50 µs Wet Mounting clearances EZBD_ 03_ EZBD_ 06_ EZBD_ 09_ EZBD_ 12_ EZBD_ 15_ EZBD_ 18_ EZBD_ 21_ EZBD_ 24_ EZBD_ 27_ EZBD_ 30_ EZBD_ 33_ EZBD_ 36_ EZBD_ 39_ EZBD_ 42_ A min B min 110 A B H 24

27 A.C medium voltage network protection 5 ka arrester Electrical and mechanical characteristics Nominal discharge current: 5 ka 8/20 µs impulse High current withstand: 2 x 65 ka 4/10 µs impulse Long duration current withstand: 18 x 150 A 2000 µs impulse Energy absorption capacity 1.8 kjoule/kv of Uc for one x 2000 µs impulse 2 kjoule/kv of Uc for one 4/10 µs impulse Rated frequency: 48 to 62 Hz Service temperature - 40 C to + 40 C (+ 60 C short duration) Specified continous load (SCL) 250 N.m Specified short term load (SSL) 350 N.m Max tension strength 15 kn Max torsion strength 70 N.m Pollution area I.E.C Short circuit rating after over voltage failure as Appendix 0 of I.E.C A for 0.2s / 600 A for 1s Temporary over voltage capability 1,9 1,8 1,7 1,6 1,5 1,4 1,3 1,2 1,1 1 0,9 0,8 0,7 0,6 0,5 0,4 0,3 0,2 0,1 0 k = TOV / Uc Preloaded Energy = 0 Preloaded Energy = max Capability 0, TOV duration EZBD line arrester does not have spark gaps in series. The zinc oxide varistors are designed to withstand the continuous phase to ground voltage of network. They are capable of bearing increased operational voltages over a long period. The temporary over voltage characteristics give the duration T and corresponding TOV with respect to continuous voltage Uc. The curve E = 0 is valid for arresters without energy preloading. The other curve is valid for arresters, which are already absorbed impulses corresponding to their maximum energy absorption capability. Protective characteristics Arrester type Ur Rated voltage (kvrms) Uc Continuous operating voltage (kvrms) Residual voltage wave 1/4 µs at 10 ka (kv) Residual voltage wave 8/20 µs (kv) 5 ka Nominal 2.5 ka discharge 10 ka current 20 ka 40 ka Residual voltage wave 30/80 µs at 500 A (kv) EZBD_ 03_ EZBD_ 06_ EZBD_ 09_ EZBD_ 12_ EZBD_ 15_ EZBD_ 18_ EZBD_ 21_ EZBD_ 24_ EZBD_ 27_ EZBD_ 30_ EZBD_ 33_ EZBD_ 36_ EZBD_ 39_ EZBD_ 42_

28 A.C medium voltage network protection 5 ka arrester Standard arrester EZB--0 and EZBD--0 Can be connected to line and ground with aluminium or copper cables from 25 mm 2 up to 148 mm 2 (with or without terminal). Mounting: Vertical type installation: EZX bracket Horizontal type installation: EQ See mounting bracket section page 34. Three-arrester packaging in cardboard box. Ordering example: 300 EZB 030. Ur (kvrms) Arrester reference EZB--0 Arrester reference EZBD--0 EZB 030 EZB 060 EZB 090 EZB 120 EZB 150 EZB 180 EZB 210 EZB 240 EZB 270 EZB 300 EZB 330 EZB 360 EZB 390 EZBD 030 EZBD 060 EZBD 090 EZBD 120 EZBD 150 EZBD 180 EZBD 210 EZBD 240 EZBD 270 EZBD 300 EZBD 330 EZBD 360 EZBD 390 EZBD

A.C medium voltage network protection 5 ka arrester Arrester with 150 A fault indicator EZB--1 and EZBD--1 Fault indicator is a black silicone band which is clamped around the arrester housing and is

29 A.C medium voltage network protection 5 ka arrester Arrester with 150 A fault indicator EZB--1 and EZBD--1 Fault indicator is a black silicone band which is clamped around the arrester housing and is visible from a distance of several hundreds metres. When the arrester fails in short-circuit, the power arc generated inside arrester opens the housing and cuts the band, which falls on the ground. Absence of black band indicates arrester to be changed. It operates above 150 A current within 1 second. Can be connected to line and ground with aluminium or copper cables from 25 mm 2 up to 148 mm 2 (with or without terminal). Mounting: Vertical type installation: EZX bracket Horizontal type installation: EQ Indicator See mounting bracket section page 34. Three-arrester packaging in cardboard box. Ordering example: 300 EZB 031. Ur (kvrms) Arrester reference EZB--1 Arrester reference EZBD--1 EZB 031 EZB 061 EZB 091 EZB 121 EZB 151 EZB 181 EZB 211 EZB 241 EZB 271 EZB 301 EZB 331 EZB 361 EZB 391 EZBD 031 EZBD 061 EZBD 091 EZBD 121 EZBD 151 EZBD 181 EZBD 211 EZBD 241 EZBD 271 EZBD 301 EZBD 331 EZBD 361 EZBD 391 EZBD

30 A.C medium voltage network protection 5 ka arrester Arrester with disconnector and insulating bracket EZB--2 and EZBD--2 Disconnector is connected between arrester and ground. In case of short-circuit. It cuts off ground connection of arrester. Operating sensitivity is shown in the Time-Current Curve. Can be connected to line with aluminium or copper cables from 25 mm 2 up to 148 mm 2 (with or without terminal) and to ground with flexible cable. Delivered with disconnector and insulating bracket. Mounting: Vertical type installation: insulating bracket alone or AZNEMA brackets See mounting bracket section page 34. Three-arrester packaging in cardboard box. Ordering example: 300 EZB 032. Disconnector Bracket Time current curve Current (A) Ø Time (s) M Ur (kvrms) Arrester reference EZB--2 Arrester reference EZBD--2 EZB 032 EZB 062 EZB 092 EZB 122 EZB 152 EZB 182 EZB 212 EZB 242 EZB 272 EZB 302 EZB 332 EZB 362 EZB 392 EZBD 032 EZBD 062 EZBD 092 EZBD 122 EZBD 152 EZBD 182 EZBD 212 EZBD 242 EZBD 272 EZBD 302 EZBD 332 EZBD 362 EZBD 392 EZBD

31 D.C medium voltage network protection 10 ka arrester - Class 2 AZE--T series General characteristics 30 D.C medium voltage network protection 10 ka arrester

32 D.C medium voltage network protection 10 ka arrester - Class 2 AZE--T General characteristics Tested in accordance with I.E.C standard and EN Zinc oxide varistors. Silicone rubber housing. 30 Outdoor and indoor use. High resistance to vibrations. High resistance to vandalism. M10 Can be connected to line and ground with aluminium or copper cables from 25 mm 2 up to 148 mm 2 (with or without terminal). One-arrester packaging in cardboard box. Ordering example: 300 AZE 040T. Physical characteristics Arrester reference Leakage distance Height Unit weight (kg) Insulation withstand of housing (kv) Lightning impulse 1.2/50 µs 50 Hz 60s AZE 010T AZE 012T AZE 020T AZE 030T AZE 040T AZE 060T AZE 080T wet Mounting clearances A min 30 M10 A H 30 M

D.C medium voltage network protection 10 ka arrester - Class 2 Electrical and mechanical characteristics Nominal discharge current: 10 ka 8/20 µs impulse Line discharge class: 2 High current

6 kjoule/kv of Uc for one 4/10 µs impulse Service temperature - 40 C to + 40 C (+ 60 C short duration) Permanent cantilever strength 100 N.m Max cantilever strength for one minute 250 N.

33 D.C medium voltage network protection 10 ka arrester - Class 2 Electrical and mechanical characteristics Nominal discharge current: 10 ka 8/20 µs impulse Line discharge class: 2 High current withstand: 2 x 100 ka 4/10µs impulses Long duration current withstand: 20 x 600 A 2000 µs impulses Energy absorption capacity 3.6 kjoule/kv of Uc for one x 2000 µs impulse 4.6 kjoule/kv of Uc for one 4/10 µs impulse Service temperature - 40 C to + 40 C (+ 60 C short duration) Permanent cantilever strength 100 N.m Max cantilever strength for one minute 250 N.m Max torsion strength 30 N.m Pollution area I.E.C Short circuit rating after over voltage failure as Appendix 0 of I.E.C A for 0.2s / 600 A for 1s Temporary over voltage capability K = TOV / Uc Energy preloading = 0 Energy preloading = maximum energy absorption capability AZE--T line arrester does not have spark gaps in series. The zinc oxide varistors are designed to withstand the continuous phase to ground voltage of network. They are capable to bear increased operational voltages over a long period. The temporary over voltage characteristics give the duration T and corresponding TOV per unit Continuous Voltage Uc. The curve E = 0 is valid for arresters without energy preloading. The other curve is valid for arresters, which are already absorbed impulses corresponding to maximum energy absorption capability. TOV duration Protective characteristics Arrester type Continuous operating voltage Ucdc (kv) 10 ka (1/4 µs) Residual Voltage (kv) 2.5 ka 5 ka 10 ka 20 ka 40 ka 500 A (30/80 µs) AZE 010T AZE 012T AZE 020T AZE 030T AZE 040T AZE 050T AZE 060T AZE 080T

34 32

35 Accessories Basic configurations 34 Optional bracket 35 Application examples 35 Surge counter with leakage current meter 36 Insulating cap 37 Accessories

36 Accessories Basic configurations Ø 12.5 L Bracket L EZX EZX EZX Arrester rated voltage Ur (kvrms) Bracket reference EZX 1 EZX 2 EZX 3 Ø 13 Arrester rated voltage Ur (kvrms) Bracket reference AZ Arrester rated voltage Ur (kvrms) Bracket reference AZPTR 34

Accessories Optional bracket B (82 < A < 107) - (105 < B

Available options with basic configurations including

Application exemples Vertical position on transformer

arm with AZPTR and AZNEMA brackets Horizontal position

37 Accessories Optional bracket B (82 < A < 107) - (105 < B < 131) A Shown with AZB--2 arrester Bracket AZNEMA Available options with basic configurations including EZX, AZ or AZPTR brackets. Application exemples Vertical position on transformer tank with 2 AZPTR brackets Vertical position on cross arm with AZPTR and AZNEMA brackets Horizontal position on transformer support with AZ brackets Horizontal position with AZ brackets 35

38 Accessories ZC-B1M Surge counter with leakage current meter for Dervasil lightning arrester Technical description ZC-B1M Surge counter is a device to record the number of lightning and switching surge discharges. ZC-B1M Surge counter can be used with class 1 & 2 DERVASIL lightning arresters and also similar arresters of other manufacturers. Number of discharges is recorded by 5-digit cyclometer and readings can be taken through the inspection window.leakage current of lightning arrester is measured by 0-3mA scale reading milliammeter. ZC-B1M Surge counter does not need any auxiliary power supply Performance ZC-B1M Surge counter operates on lightning impulse current (8/20µs wave) more than 100A and can operate perfectly if the interval of multiple lightning strokes is more than 0.2s. Potential across the ZC-B1M Surge counter is less than 50V crest under normal operating conditions. Residual voltage at 10kA(8/20µs wave) of the ZC-B1M Surge counter is less than 3 kv and has negligible effect on the protection level of the lightning arrester. Discharge current capability is 100kA (4/10µs wave) and 1000A (2ms rectangular wave) Dimensions 285 mm Earth terminal Arrester Arrester earth terminal Line terminal ø 220 mm Ammeter 137 mm 110 mm Installation 247 mm Surge counter ZC-B1M Surge counter is connected between the earth terminal of the lightning arrester and the earth. It should be mounted as close as possible to the lightning arrester and length of connecting wires should be as short as possible. The connecting wire used between surge counter and lightning arrester should an insulated wire with impulse withstand voltage more than 5 kv. Drain hole 36 EARTH

39 Accessories Insulating cap for Dervasil lightning arrester Technical description The Dervasil insulating cap (Polyamid molded) is especially designed to feet on lighting arrester. Insulating cap Reference : CAP M10 37

41 Composite Insulators Tension insulators DSIL series 40 Support insulators RC series 40 Insulators for DC railways systems 41 Insulator

42 Composite insulators Tension Insulators DSIL series Tested in accordance with I.E.C Silicone rubber housing. Outdoor and indoor use. High resistance to vibrations. High resistance to vandalism. End fittings Socket Clevis Ball Eye Physical and electrical characteristics Insulator reference Typical line voltage (kv) Specified Tensile load (kn) Section Length Leakage Distance Arcing Distance Number of Sheds Shed Diameter Estimated Weight (kg) Dry power frequency voltage withstand (kv) Electrical characteristics Wet power frequency voltage withstand (kv) Dry lightning impulse withstand (Positive kv) (Negative kv) DSIL DSIL DSIL Support insulator RC series Tested in accordance with I.E.C M16 Silicone rubber housing. Outdoor and indoor use. High resistance to vibrations. High resistance to vandalism. Physical and electrical characteristics M16 Insulator reference RC 15 Specified Typical Line Cantilever Voltage (kv) Load (kn) Maximum Cantilever Load (kn) Specified Tensile Load (kn) Height Leakage Distance Arcing Distance Number of Sheds Shed Diameter Estimated Weight (kg) ELECTRICAL CHARACTERISTICS Dry power Wet power frequency voltage frequency voltage withstand (kv) withstand (kv) Dry lightning impulse withstand (Positive kv) (Negative kv) RC RC

Insulators for DC railway systems Support insulator Tested in accordance with I.E.C 61952 110 Silicone rubber housing. Outdoor and indoor use. High resistance to vibrations.

43 Insulators for DC railway systems Support insulator Tested in accordance with I.E.C Silicone rubber housing. Outdoor and indoor use. High resistance to vibrations. 254 High resistance to vandalism. Physical and electrical characteristics Typical Line Voltage (kv) Specified Cantilever Load (kn) Maximum Design Cantilever Load (kn) Specified Tensile Load (kn) Height Leakage Distance Arcing Distance Number of Sheds Shed Diameter Estimated Weight ELECTRICAL CHARACTERISTICS Dry power Wet power frequency voltage frequency voltage withstand (kv) withstand (kv) Dry lightning impulse withstand (Positive kv) , (Negative kv) 41

Energy Division. Bowthorpe LV/MV Surge Arresters

Energy Division. Bowthorpe LV/MV Surge Arresters Energy Division Bowthorpe LV/MV Surge Arresters Bowthorpe EMP LV/MV surge arresters OCP, Open Cage Polymeric series Bowthorpe pioneered the development of polymeric housed surge arresters in the early