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Electrical tests

In the low-voltage range, we offer accredited testing of components in the fields of switchgears and switchgear assemblies, renewable energy, the automobile industry and beyond.

You can expect comprehensive engineering competence in development tests and type testing with an extensive range of services from short-circuit tests and operating performance to insulation testing.

Whether you are working with electrical engineering, rail vehicles or mechanical engineering, we operate according to German and international standards and guidelines, or in accordance with factory settings. All of the testing laboratories involved are accredited according to DIN EN ISO/IEC 17025.

Our portfolio

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Environmental Simulation and Vibration

External influences such as vibration, impact, cold, heat, moisture or water spray are simulated on vibration tables and in climatic chambers. We subject your product, for example, to vibration testing, shock testing, climatic testing, determination of Woehler-lines, pressure pulse tests, bursting pressure test, leak test, corrosion test and transport simulation.

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Medial Load Testing

No matter whether it concerns piping, components, aggregates (pressure generators, pressure consumers) or integrated systems with the use of special media, we determine the behavior under the real driving dynamic loads combined with temperature change, pressure change, volume flow and vibration excitation.

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Automobiles

Powerful for every vehicle type - our strength tests, approval tests or development tests are proven to be reliable for testing the operational strength and service life of automotive components, media-conducting systems, electrical components and materials.

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Railway

At our testing and development center, we test all rail vehicle components and materials for strength and service life. In terms of product and operational safety as well as quality assurance, we bundle the forces of testing and test design in our company with measurement, calculation, simulation and proof of strength as well as construction.

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Materials Testing Metals

Our material specialists accompany you in the implementation of your test programs as well as standardization, approval and certification of materials or manufacturing processes. We stand by your side during the entire test procedure, from the consultation, test planning and sample production, over the test itself up to the finished test report.

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Material Testing for Plastics and Composite Materials

From the base material through the manufacturing technology to the approval of the finished product - our material tests are DAkkS and NADCAP accredited. This includes static, cyclic and dynamic tests as well as static long-term tests, including sample production.

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Materialography

Whether for quality assurance, damage analysis or for research and development - in our accredited materialography laboratories we take a close look at both metallic and non-metallic materials of different composition with qualitative and quantitative characterization methods. This also includes the sample preparation procedures and the analysis, evaluation and documentation of the microscopic examination results.

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Damage analysis

Determining causes and effects experimentally - we assess damage cases and thus support the cause clarification. Our experienced engineers help you to investigate undesirable damage phenomena in detail - for example, by materialography, acoustic damage detection or non-destructive testing methods.

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Materials databases

The databases of our WIAM® product line provide material information and characteristic values ​​that are used reliably for material selection, design, standardization, calculation and simulation. The data pool draws on material and fundamental experiments from the last five decades, and new materials are systematically integrated.

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Software and Software Solutions

We have solved the management of data and documents from processes in the areas of research and development, simulation and calculation, laboratory, quality management, process development and production planning - with the WIAM® database systems we offer suitable software solutions with flexible data structures, display options and evaluations.

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Training and Seminars

Benefit from our cross-industry know-how: In training courses and seminars directly at your company or at our site, you will receive extensive specialist knowledge - from courses for non-destructive testing (ZfP / NDT) about the FKM guideline "Computational Strength Verification of Machine Components" to software user training for WIAM® fatigue RIFEST.

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Whether you need short-circuit, short-time withstand current capacity, switching capacity or continuous current testing, with its in-house transformers IMA Dresden can offer testing services with test currents of up to 25,000 A, alternating current at 1,000 V and 20,000 A, and direct current at 1,100 V. In spacious modern testing facilities, test currents are SPS-controlled and data such as the current-voltage curves and temperatures are recorded.

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High-performance testing

The modern high-performance test bay offers versatile test applications up to 25,000 A, such as switching capacity, performance, electrical endurance and short-circuit testing.

Typical device groups

  • Power, load-break and transfer switches
  • Switch-fuse units
  • Contractors and motor-starters
  • Heavy-duty connectors
  • High-current components for the automobile industry
  • Switchgear combinations
Switching capacity
Operating performance
Electrical endurance
Short-circuit
Testing voltageTest currentTest current
AC up to 800 Vup to 15,000 Aup to 25,000 A*
DC up to 1,100 Vup to 15,000 Aup to 20,000 A*
Loadohmic, inductiveohmic, inductive

*up to 0.06 s or protected by fuses or another protective device

Endurance testing

Flexible test fields are available for electrical, pneumatic and manually operated switchgears to test electrical/mechanical endurance, operational behaviour and the making and breaking capacity.

Typical device groups

  • Control devices, proximity switches, signalling switches
  • Relays, motor starters
  • Switch-fuse units
  • Contactor
Testing voltageTest powerTest current
AC up to 0–1,000 V140 kVAup to 200 A
DC up to 1,300 V140 kVAup to 200 A
Loadohmic, inductiveohmic, inductive

Heating and continuous current testing

Automated test field with versatile test options for switchgears and switchgear combinations:

  • Continuous data collection for
    • Temperature
    • Electricity
    • Voltage (determination of partial and total power loss)
    • Voltage drops/contact resistance
  • Cyclical electricity control (intervals/cycles)
  • Overlay with climate tests and vibration tests

Typical tests

  • Heating and continuous current testing
  • Proof of ageing resistance
  • Overload tests of devices with fuses and thermal trips
  • Determination of derating curves (electricity can be adjusted to target temperature, e.g. connection area)

Typical device groups

  • Terminal blocks and circuit points
  • Heavy-duty connectors
Alternating current*3-phase up to 2,000 A
1-phase up to 5,000 A
regulated
Direct current*up to 2,000 Aregulated

*testing at low voltage, ≤ 5V

Verification of aging resistance on Frame clamps 630 A

Insulation testing

  • Operating frequency electric strength up to 5 kV AC
  • Impulse voltage withstand up to 24 kV; 1,2µs/50µs (36 joules)

Other testing Options

  • Creepage and air gaps
  • Mechanical test benches force/displacement
    • Strength of operating units / misapplied forces
    • Mechanical strength of clamping points
    • Bend testing
    • Tensile test
  • IP tests / IK Code / touch protection
  • Climate tests (temperature / humidity); can be combined with other tests
  • Vibration / schock
  • Glow wire test / combustibility

Standards

  • DIN EN 60947 switchgears
  • DIN EN 61439 switchgear combinations
  • DIN EN 61535 Installed connectors for permanent connection in fixed installations
  • DIN EN 60998 Connecting devices for low-voltage circuits for household and similar purposes
  • DIN EN 60999 Connecting devices – electrical copper conductors – safety requirements for screw-type and screwless clamping units
  • DIN EN 60077 Railway applications – electrical equipment for rolling stock
  • DIN EN 60664 Insulation coordination for electrical equipment within low-voltage systems
  • DIN EN 60204-1 Safety of machinery – electrical equipment of machines
  • DIN EN 50155 Railway applications – electronic equipment used on rolling stock
  • LV 124 Electric and electronic components used in passenger vehicles weighing up to 3.5 tonnes
  • LV 214 Kfz – Connectors