Certified According to EN 45545-2: Wevo Potting Compounds Products for Rail Vehicles and Railway Infrastructure

时间： 2023-09-13 来源：Wevo News

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The German government is planning for Germany to be climate-neutral by 2045, including the mobility sector. The nation’s railways are to play an important role in achieving this goal. With increasing traffic volumes in both passenger and freight transport, the issue of safety will also play an increasingly important role. In the event of a fire, for example, it must be possible to evacuate the train quickly and prevent or at least slow down the spread of the fire. For this purpose, European test standard EN 45545-2 specifies EU-wide fire protection requirements for the materials and components used in rolling stock. Specially designed potting compounds from WEVO-CHEMIE GmbH meet the highest requirements of this standard and can therefore be used for electrical and electronic components in rail vehicles and railway infrastructure.

Plastics are widely used in rail vehicles and railway installations, for example as insulating materials in transformers, capacitors, sensors, relays, insulators, printed circuit boards, and batteries. In the event of a fire, the components and materials must meet certain performance levels defined by EN 45545-2. Categorization into the three “hazard levels” (HL) essentially depends on the hazard that arises during a fire.

To this end, the standard takes into account, on the one hand, the operation category of the rail vehicle, which depends on whether the vehicle is traveling on open track or for example mainly in tunnels. In addition, the design category is also relevant as for example, a freight wagon requires a lower level of fire protection than a double-deck passenger train. The location of the material or component, the exposed surface of the combustible material, and the subsequent application – whether furniture, electrotechnical, or mechanical equipment – also play an important role, as dangers may arise in the event of fire from flames, heat, smoke, and toxic gases.

WEVO POTTING COMPOUNDS MEET HIGH REQUIREMENTS AS SET BY EN 45545-2

Accredited test institutes have examined the suitability of specially designed Wevo potting compounds for use in rail vehicles and railway infrastructure. Their findings: The polyurethane-based products WEVOPUR 552 FLX and WEVOPUR 67210 FL successfully fulfilled the highest performance level HL3 in requirement sets R22 and R23 (electrotechnical products for interior and exterior use in rail vehicles). Several other products meet performance levels HL3 in R23 and HL 2 in R22, including an epoxy resin.

TARGETED PRODUCT DEVELOPMENT LEADS TO ADDITIONAL BENEFITS

In order to meet the desired performance levels, Wevo has tested a wide range of formulations and raw materials during product development. “In line with the requirements of the standard, particular attention was paid to achieving a combination of low flammability, low smoke density, and low smoke toxicity,” explains Andreas Arlt, Business Development Manager at Wevo. At the same time, in close cooperation with suppliers and OEMs from the world of railway engineering, the thermo-mechanical and dielectric properties have been optimized and easy processability ensured. “Furthermore, we have even realized positive impacts on the mechanical properties by using certain additives,” adds Andreas Arlt. “These include a lower coefficient of thermal expansion, higher tensile strength, and higher thermal conductivity.”

All products are also self-extinguishing in line with UL 94 V-0. In addition, some polyurethane potting compounds have a United Laboratories (UL)-registered RTI value of between 130℃ and 155℃– which means they can be used in class B and F insulation systems.

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Adapted to the respective requirements, customized potting compounds, adhesives, and sealants from WEVO-CHEMIE GmbH protect such components from challenging environmental conditions, heat generated during operation, or tampering – and play their part in enabling these new technologies to be implemented.

2022-11-04 - 原厂动态代理服务技术支持批量订货

WHAT ABOUT EXXELIA'S HIGH TEMPERATURE CAPACITORS?

Exxelia has a long history providing high temperature capacitors to various industries. Several dielectrics, such as plastic (PTFE; PI; & PEI), reconstituted mica, aluminum electrolytic, tantalum and ceramic are used for manufacturing high temperature capacitors. Many are impregnated with solid thermo-setting resins such as epoxy, polyester or silicone. These technologies provide very high stability of mechanical and electrical characteristics with temperature capabilities of -55°C to as high as +230°C, depending on the dielectric technology, and some do not require voltage de-rating. Rated voltages span from 30 VDC to as high as 60,000 VDC with capacitance ranges 100pF to 30µF.

2024-08-30 - 技术问答

E-MOBILITY

型号- WEVOSIL 28002,WEVOSIL 28001,WEVOPUR 9251 FL,WEVOSIL 26009 FL,WEVOPUR 60910 FL,WEVOPOX 32702,WEVOSIL 22006 FL,WEVOSIL 26009 FLB,WEVODUR 32702,WEVOSIL 22002 FL,WEVONAT 600,WEVOPOX 2513,WEVOPUR 56003 FL,WEVOSIL 27015 FLB,WEVODUR 5008,WEVOPUR 600,WEVOSIL 27015 FLA,WEVONAT 552 FL,WEVOPUR 56093 FL,WEVOPUR 552 FL,WEVODUR 5001,WEVOPUR 300 RE,WEVOSIL 26010 FL,WEVONAT 56003 FL,WEVOPUR 56002 FL,WEVOSIL 22005 FLA,WEVOSIL 26020 FL,WEVOPUR 60515 FL/40,WEVOPOX 1003/07,WEVOPUR 895,WEVOPUR PD 445,WEVONAT 507 L,WEVODUR 1003/07,WEVOSIL 20201,WEVOSIL 27015 FL,WEVONAT 512 FL,WEVOPUR PD 52,WEVOSIL 26020 FLB,WEVOSIL 26020 FLA,WEVONAT 403 FL,WEVONAT 78901,WEVONAT 507,WEVONAT 7210 FL,WEVONAT PD 79952,WEVONAT 900,WEVOPUR 56005 FL,WEVOPUR 68389 FL,WEVOSIL 22005 FLB,WEVOPOX 5008,WEVOPUR 900,WEVOPUR PD 79952,WEVONAT 56093 FL,WEVONAT 300,WEVOPOX 5001,WEVONAT 385,WEVOPUR 403 FL,WEVOPUR 512 FL,WEVOPUR 300,WEVOPUR 78901,WEVOSIL 22002 FLB,WEVOPUR 385,WEVONAT PD 52,WEVOSIL 22002 FLA,WEVONAT 300 RE,WEVOPOX 36001 FL,WEVODUR 2513,WEVOPUR 56992,WEVONAT 56992,WEVOSIL 22006 FLB,WEVOSIL 22006 FLA,WEVODUR 34020,WEVONAT PD 445,WEVOSIL 28002B,WEVOSIL 28002A,WEVONAT 68389 FL,WEVOSIL 22005 FL,WEVONAT 56005 FL,WEVOPUR 507,WEVOSIL 20201B,WEVOSIL 20201A,WEVOPUR 67210 FL,WEVONAT 67210FL,WEVONAT 895,WEVOPOX 34020,WEVOSIL 26009 FLA,WEVODUR 36001 FL,WEVOPUR 7210 FL,WEVONAT 9251 FL

2022/5/30 - WEVO - 商品及供应商介绍代理服务技术支持批量订货

Wevo Potting Compounds for Fans Facilitate State-of-the-art Ventilation Technology

WEVO-CHEMIE GmbH has developed potting compounds based on polyurethane and epoxy that are specifically tailored to use with fans and ensure individual protection and long service life.

2022-11-10 - 原厂动态代理服务技术支持批量订货

WHY CHOOSE A SILVERED MICA CAPACITOR?

Silver mica capacitors provide superior stability and low loss when used in RF power circuits that require low pico farad (pF) and nano farad (nF) ranges. Older silver mica capacitors were manufactured in layers of mica and silver, but the layering allowed room for air gaps that reduced the stability and could also create stress fractures in the assembly. Modern manufacturing uses silver plated to mica layers, eliminating the gaps. When the desired number of layers is obtained, the assembly is coated in an epoxy or ceramic resin. The coating reduces fracturing of the layers and seals the assembly from moisture and particles that could interfere with the capacitance value. Mica capacitors are useful in circuits for ripple filtering and are often found in time constant, coupling or resonance circuits. In addition to radio circuits, they are used in TV transmitters and Cable TV amplification circuits. Mica is also a superior choice in high-voltage inversion and power conversion for energy absorbing snubber applications with capacitances of up to 10 nF.

2024-08-30 - 技术问答

Teraoka（寺冈制作所）能源产业用胶带选型指南（英文）

目录- Adhesive tapes for energy industry

型号- 8410,631S2,5100,5661,8315,610S,654S,630F,551F,684F,636F,638F1,540S,4920,560S,681S,570F,8304,631S,653S,566F,576F,653F,480,673F,630F2,420,5113 0.15,302,347,635F,541S,652S,846,561S,650S,1825,4812,5110 0.16

2017.01 - TERAOKA - 选型指南代理服务技术支持批量订货

Medium Power Film Capacitors Selection Guide

型号- FB37F56Q0206*C,FVC16H0104* 2T,FFB56L0475K--,DF*HV46°G3487,FFLI6P0856K**,FFLC26 MB1348*,FB27E26C0305*C,FE52GA6C0356*B,FE52GE7B0656*B,FFVE6C0126K--,FSB66B0505K18,FE52GI6P0456*B,FAI46K0284K--,FB27EC7A0105*C,FLBA6J0536K03,FB27EG6B0106*C,FE52GJ6Q0207*D,FFLI6Q0257K**,FSBB6A0225K90,FB27E37A0335*C,FLCN6H0206K4C,FPX86Y0505J--,DF*HV24°A5747,FFLI6L0787K**,FVA26H05632T*,FAI36J0334K--,FFLC42 MC8467*,FB52GA6Q0556*C,FFLI6U0727K**,FE37F97B0306*B,FB52G96P0106*C,DF*HV45°C6657,FE37F87P0805*A,FE37F87A0226*A,FB27E46K0405*C,FE52GH6Q0137*B,FAI66K1055K--,FE52GA7A0456*B,FE52GC6J0756*B,FFVE6N0246KJ7,FLAE66R0506KF,FE37F96C0256*B,FSBA6N0224K90,FB37F96Q0456*C,FLCC6A0505K2C,DF*HV35°A1088,FSBB6A0205K18,FE37FP6Q0506*B,FFLC22*MC5527,FPG86N0305J--,FE52GC7I0107*B,FLCH6I0126K2C,FVA16H0153* 22,FVC16H0104* 22,FE37FL6B0206*A,FFLC41*MD5347,FAI16J0214K--,FVC46H0224 2T*,DF*HV36°F4257,FVA16H047322*,FE52GE7J0117*B,FE37F87C0186*A,FFPC*N0717K°°,FE37FL7I0406*A,FE37F67A0156*A,FLAA16N0106KF,FB27E96C0106*C,FFLC32*MC7017,FB52G78H0506*C,FFVE6B0107K--,FLAG46M0157KH,FFLR6Y1056K**,FFPC*T0287K°°,FFB46C0515K--,FMK6U0823 * 02L,FLCL6H0106K4C,FE37F86K0156*A,FE37F86K0156*B,FB27E96C0805*C,FFLI6L2007K**,FPG66N0504J--,FFB24D0476K--,FFLI6W0147K**,FPX86N0355J--,FE52GC6B0606*B,FFLR6U0177K**,FPG86P0405J--,FLCA6A0225K2C,FE37GA6I0606*B,FB52G96K0226*C,FFLI6B0817K**,FB27E67L0405*C,FFLR6L0168K**,FLAF46A0307KH,FPG66Y0224J--,FFVS6K1956K--,FFLC43 MB1328*,DF*HV43°F2427,FVA16H02232L*,FSBA6N0154K90,FE52G96P0126*B,DF*HV36°D6887,FVC36H0154 2T*,FE52GE7Q0906*B,FLAE36M0256KF,FFLC22*MD4437,FE37F97K0156*B,FFLC16 MD6447*,FFLR6R0517K**,FFLC21 MB5277*,FE52G96K0206*B,FSBA6U0334K18,FB37F67C0106*C,FB27E67P0335*C,FB27EG6C0705*C,FFB44E0476K--,FSB96U0205K18,FPX86Y0255J--,DF*HV21°E1067,FB27E27J0505*C,FSB76G0155K18,FB37FC8H0106*C,FLCM6A0206K4C,FFPC*P0657K°°,FFLR6Y0856K**,FFLI6W1256K**,FE52GA6H0606*B,DF*HV32°F1827,FB27E16L0105*C,FE37F46K0805*B,DF*HV44°A9007,FE37FE8K0106*A,FFPC*Q0627K°°,FE37F86Q0306*B,FE52GF6A0906*B,FVD56H0155* 22,FE37GA6I0556*B,FVD16H0474* 22,FE52GC6Q0606*B,FFB26J0565K--,DF*HV14°G1557,DF*HV44°G2497,FE37F97C0206*B,FFLR6Z0666K**,FLAE46N0256KF,FLAE26N0186KF,FFLI6P1056K**,FB37FH6A0106*C,FE37F96B0356*B,FE52GA7L0206*B,FVF66H0565 22*,FFPC*B1697K°°,FFLI6L0337K**,FE52GE7A0756*B,FLBB6J0966K03,FFLC13 MA7817*,FLCL6I0755K4C,FSBA6C0754K18,FVF56H0565 22*,FB27E47L0335*C,FAI36J0514K--,FE37F46B0126*B,FFVE6L0666KJ7,FLBJ6J1386K03,FFLC13 MB6287*,FE37F86C0206*B,FFB54E0686K--,FVC26H0823* 2T,FSBB6A0205K90,FMC6K0103 * 02L,FFLI6L0337K--,FVC26H0823* 2L,FE37FF8A0156*A,DF*HV24°C3547,FE37FF8H0206*A,DF*HV26°E3217,FSB86C0305K18,FLAA26N0156KF,FE37F56Q0226*A,FFLR6C0188K**,FFLI6Z0107K**,FSBB6G0684K18,FB37FE8K0705*C,FE52GE7C0556*B,FE37F67L0805*A,FFLI6U1607K**,FB27EC6Q0105*C,FFLR6K0907K**,DF*HV26°C4967,FFLI6Y0157K**,FVD56H0155* 2L,FE52GC6P0256*B,FVA16H01532L*,FE37F67J0256*A,FLAG36H0307KH,FFLC15ME3987*,FB27E17I0505*C,FE52GE6K0406*B,FLAF16L0506KH,FLAH26O1256KH,FFLC34 MA1598*,FB37F46P0505*C,FLBC6O0556K03,FPX86Y0275J--,FE37FD8K0505*A,FLCI6A0506K2C,FE37F96H0456*B,FLAB36H0606KF,FFB44I0156K--,FPG66X0504J--,DF*HV22°A3447,DF*HV32°C3337,FLAE66N0406KF,FE37F86B0226*A,FB27E17I0305*C,FE37F86B0226*B,FB27E27K0205*C,FFLR6X1156K**,FSBA6B0105K18,FMF6K0563 * 02L,FFLI6T0167K**,FLCM6H0156K4C,FE37FN7P0156*B,FB52GC6K0356*C,DF*HV21°F0877,FFLI6S0377K**,DF*HV13°F1517,FVC96H0824 22*,FB27EA8A0305*C,DF*HV22°C2137,FFLC42 MD6797*,FVF36H0475* 22,DF*HV41°C2547,FB27E66B0905*C,FE52GI6B0107*B,FSB66B0255K18,FMA6D0103 * 02L,FB27E16J0305*C,FB37FD8H0156*C,FFVS6L0956K--,FFB14I0625K--,FE37F96Q0406*B,FSBA6C0684K18,FB27E67K0505*C,FSBB6G0754K18,FFLR6X0706K**,FFB26C0275K--,DF*HV26°A8047,FE52GI6Q0147*B,FE37FN6L0186*B,FVA26H04732T*,FE37FA8A0705*A,FPG86W0355J--,FPX86Z0205J--,FE52GA7B0356*B,FLCF6I0755K2C,FE52G18H0206*B,FSB76G0155K90,FFLI6R0907K**,DF*HV15°G1867,FE52G58H0506*B,FE52GK6P0356*B,FFLC12 MD3227*,FFPC*Z0197K°°,FMR6M0683 * 02L,FB37F87L0106*C,DF*HV33°C4447,FLAF26A0157KH,FB27E37Q0805*C,FFV36A0146K--,FPG86N0255J--,FB52GC6K0406*C,FE37FP6P0156*B,FFG86C0266K--,FFLR6L0427K**,FE52GA6Q0506*B,FAI66J0206K--,FE52G96P0156*B,FE52GL6C0706*B,FPG86Z0105J--,FB37F46Q0106*C,FLBD6L1236K03,FB27E37A0505*C,FSB86B0335K18,FPG86N0105J--,FFLI6W0257K**,FFPC*W0537K°°,FE37F96P0126*B,FE52GI7K0606*B,FAI66K0146K--,FMG6U0393 * 02L,FPG66P0105J--,FB37FH7Q0126*C,FPX86N0405J--,FB27E67Q0106*C,FSB86C0305K90,FVC46H0224* 2L,FB37F46K0505*C,FB27EI6B0126*C,FFLC23*MA1078,FFLR6R0377K**,FFLR6Z0536K**,FVA36H02242L*,FSB76N0155K18,FSB96N0824K18,FLBA6L0926K03,FE52GK7J0157*B,FSB76B0255K90,FFB36L0245K--,FFLR6B0467K**,DF*HV15°E2757,FB27EC6I0105*C,FB27E47P0225*C,FFLI6S0337K**,FE37F86C0156*A,FSB76U0305K18,FE52G67I0506*B,FE37FA8H0106*A,FFLR6L0177K**,FVF56H0825* 22,FE52GE7B0706*B,DF*HV11°D1447,FE37F56Q0256*A,FSBB6G0684K90,FPX86P0205J--,FB52GC6Q0706*C,DF*HV44°B6537,FSBA6N0334K90,FLBD6J0776K03,FSB76N0105K90,FFVE4H0407K--,FB37FG8K0106*C,FVC36H0154* 2L,FVC26H0683* 2T,DF*HV11°C1627,DF*HV23°A4597,FFLI6Q0147K**,FFB54D0117KJC,FB37F87K0156*C,FFLC25 MA1498*,FMG6U0473 * 02L,FPG66R0155J--,FE37FP6H06

121119 - KYOCERA - 选型指南代理服务技术支持批量订货