Dry Arc Resistance Tester is designed to conduct high voltage, low current arc Resistance test on solid electrical insulation material as per: 1) ASTM standard D495-99 (2004)-“Standard Test method for High – Voltage / Low-Current, Dry Arc Resistance of solid Electrical Insulation” 2) UL 746A “Testing for electrical properties.” This product is meant for all insulator/ polymer/electro plastic manufacturers and appliance manufacturers that use insulators in their products. Many Cases of insulator failure are due to deterioration of its surface because of sustained electrical discharge or Arc. This test method is intended to test the resistance of insulating material 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. This Test ensures that your products meet high standards of quality & safety. This product is meant for all Switchgears/insulator/Polymer/electro plastic manufacturers and manufacturers who use insulators in their products e.g. Wiring Accessories, Appliances, HT/LT line insulators etc.

This test is useful 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., an Arc is generated between these electrodes. The test consists of 7 Cycles starting from cycle 1. As the cycles progress the test becomes progressively severe. The test specimen that have lower insulating strength fail 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.

Salient Features:

1.Designed to comply with the requirement of ASTM standard D495-99 & UL 746A.

2.Test chamber with door interlock system to protect user from direct contact of High Voltage.

3.Control Unit to set the test parameters, control test sequence and/ read test results.

4.Two types of gauges are provided to maintain angle of electrodes & distance between two electrodes.

5.Provision is given to maintain the electrodes angle with sample under test and move the specimen in UP, DOWN direction depending upon height of the product.

6.Emergency OFF facility is provided.

7.Auto switched OFF in case of failure.

8.Enclosure – Elegant design with Aluminum extruded profile.

9.External “Calibration terminals” for Time and HV are provided on panel.

10.Lamp Indications for Mains ON, Door Open and Test Over.

Specifications:

1. Input Supply: 230V AC, Single Phase, 50Hz.

2. Test Voltage: 15 kV

3. The unit is programmed to operate in 7 cycles. Each cycle will be for duration of 60 seconds.

4. Test will be conducted automatically at 10, 20, 30 & 40 mA ranges as per the standard.

With PC Datalogging

1. The LabVIEW based Software (Test ware®) for controlling the test sequence and to set the test parameters / read test results.

2. SCR make ethernet based PC interface system.

3. Adjustment of voltage will be automatic through PC

4. Total test time & current can be selected through PC.

5. There will not be any manual control.

6. Software records all the parameters & display results as PASS/FAIL on PC screen.

7. The results are stored on PC as per test samples & date.