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Dry Arc Resistance Tester as per ASTM D495

Designed to evaluate the ability of solid electrical insulating materials to withstand high-voltage, low-current electrical arcs under dry conditions as per ASTM D495

Dry-Arc-Resistance-Tester-ASTM D 495
Dry Arc Resistance Test Equipment as per ASTM D 495

The SCR Elektroniks Dry Arc Resistace Tester is made to test the electrical insulating material by exposing it to Arcing under high voltage. This test method is crucial for ensuring the reliability and safety of electrical equipment  that utilize insulating materialswhen a high -Voltage low -current Arc close to the surface of insulation, intending to form a conducting path therein or in causing the material to become conducting due to decomposition and erosion.

The test method as per ‘ASTM D 495 – Standard Test Method for High-voltage, Low-current Dry Arc Resistance of Solid Insulating Material’ is pre-programmed in the PLC.

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This equipment is made to test the electrical insulating material by exposing it to Arcing under high voltage. 

The test specimen is placed under electrodes, spaced at a distance of 6.35mm as per ASTM D 495. An Arc is generated between these electrodes.

As the cycles progress the test becomes progressively severe. The test specimen that has lower insulating strength fails earlier in the first few cycles while those with higher insulating strength sustain higher cycles. The test is halted when the specimen fails and the time taken from the start of the test till the failure is used for comparing INSULATING STRENGHTS (time in seconds) of various insulating materials. The test specimen may fail by forming a conducting path, by burning into flames, by melting or any other physical, visual deformities.

This equipment complies testing as per other standards as well, such as IEC 61621 (Dry, solid insulating materials – Resistance test to high-voltage, low-current arc discharges), UL 746 A (Polymeric Materials – Short Term Property Evaluations Testing For Electrical Properties) and IS 14672 (Method of Test for High Voltage Low Current Dry Arc Resistance of Solid Electrical Insulation).

Salient Features

  • Designed to comply with the requirement of ASTM standard D495
  • Adjustment of voltage will be manually through Variac.
  • Siemens make HMI (SIMATIC) for controlling the test sequence and to set the test parameters / read test results.
  • Different types of gauges are provided to maintain angle of electrodes & distance between two electrodes.
  • External “Calibration terminals” for Time and HV are provided on panel
  • Test chamber with Door Interlock System to protect user from direct contact of High Voltage.
  • Emergency OFF provision.
  • Enclosure – Elegant design with Aluminium extruded profile.

Specification

  • Input supply voltage 230 V (±10 %)/ 50Hz.
  • Adjustable voltage 15kV
  • The test will be conduct automatically at 10, 20, 30 & 40 mA ranges as per the standard through PLC + HMI.
  • Total test time & current can be selected through HMI.
  • The unit is programmed to operate in 7 cycles. Each cycle will be for duration of 60 second

Variants

PLC-Based-Dry-Arc-Resistance-Tester

Dry Arc Resistance Tester (High Voltage - Low Current) ASTM D-495 & UL 746A - PLC Based - Trolley Type

This equipment is made to test the electrical insulating material by exposing it to Arcing under high voltage as per ASTM D 495.
In PLC Based variant, setting will be done through PC Software and report can be generated.

PC-Based-Dry -ARC-Resistance-Tester

Dry Arc Resistance Tester (High Voltage - Low Current) ASTM D-495 & UL 746A - PC Based - Trolley Type

This equipment is made to test the electrical insulating material by exposing it to Arcing under high voltage as per ASTM D 495.
In PC Based variant, setting will be done through PC Software and report can be generated.

Customization - PC Datalogging

  • The LabVIEW based Software (Testware®) for controlling the test sequence and to set the test parameters / read test results.
  • SCR make ethernet based PC interface system.
  • Adjustment of voltage will be automatic through PC
  • Total test time & current can be selected through PC.
  • There will not be any manual control.
  • Software records all the parameters & display results as PASS/FAIL on PC screen.
  • The results are stored on PC as per test samples & date.

Application Note

This product is meant for all insulator/ polymer/electro plastic manufacturers and appliance manufacturers that use insulators in their products.e.g. Wiring Accessories, Appliances etc.

The test kit helps the user to asses performance of an insulator by subjecting it to high voltage arcing. The insulator under test is expected to pass the complete test cycle as per the ASTM D495 table

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High-Current Arc Ignition Test Machine is used for evaluating Ignition Performance Level Category as per UL 746A. It offers a Siemens PLC based control system with all relevant meters on board

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Dry Arc Resistance Tester as per ASTM D495

 The SCR Elektroniks Dry Arc Resistace Tester is made to test the electrical insulating material by exposing it to Arcing under high voltage. This test method is crucial for ensuring the reliability and safety of electrical equipment  that utilize insulating materials when a high -Voltage low -current Arc close to the surface of insulation, intending to form a conducting path therein or in causing the material to become conducting due to decomposition and erosion.

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Dry-Arc-Resistance-Tester-ASTM D 495

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