testing

Electromagnetic compatibility (emc / emi)

Electromagnetic compatibility (EMC) is a requirement placed on all electronic devices, equipment, appliances and systems. European, international and manufacturer-specific directives and standards form the basis for compliance testing. EMC testing is conducted in 6^th of October at the industrial zone 2. the high level of flexibility, the extensive buildings and equipment, the permanent support equipment for processing of the test specimens in line with practical requirements are important corner-stones of efficient testing. We offer our services in our own accredited and internationally recognized laboratories.

01.

Conducted emission test

02.

Radiated disturbances test

03.

Power disturbance test

04.

Radiated electromagnetic field emission test

05.

Electromagnetic field test (Permanent & on-site)

06.

Harmonic current emission test

07.

Voltage changes, fluctuation and flicker test

08.

Electrostatic discharge immunity test

09.

Radiated immunity test

10.

Electric fast transients burst immunity test

11.

Surge immunity test

12.

Immunity to conducted disturbances, induced by RF fields

13.

Voltage dips, short interruptions & voltage variations immunity tests (Influence of supply voltage)

14.

Power frequency magnetic field immunity test

Tests of insulating properties

Tests conducted to determine the effectiveness of the insulating properties of cables as well as some electric devices are crucial for safety and performance. That’s why we conduct both impulse voltage tests and AC voltage tests. Impulse voltage tests simulate lightning strikes and switching voltages to determine the capabilities of the product’s insulation. On the other hand, AC voltage tests uses varying voltages in order to push the product’s insulation to the limits. This test determines whether or not the product is functioning as it should. Both of these tests are important in determining the quality of the product’s insulation.

Tests of accuracy requirements

Tests conducted to determine the accuracy of energy measurement devices are essential for billing systems. If an inaccurate measuring device is used, it could cost individuals thousands of dollars’ worth of errors over an extended period of time. Finetuning said devices usually depends on multiple tests that vary greatly. Those tests are:

01.

Test of meter constant.

02.

Test of starting condition.

03.

Test of no load (creep) condition.

Tests of influence quantities

Tests conducted to determine how much measurement results are affected by influence quantities. Even though said quantities have an effect on the final results, we are able to compensate for those changes through calibration. By calibrating the measurement systems used, we can increase the accuracy of the final results by a significant margin. Although there are a lot of influence quantities to consider whenever calibrating measurement systems, there are twelve that are the most common.

Those twelve are :-

01.

Repeatability

02.

Voltage unbalance.

03.

Reversed phase sequence

04.

Voltage variation

05.

Severe voltage variation.

06.

Frequency variation.

07.

Limits of error due to variation of the current (accuracy tests at reference conditions).

08.

Ambient temperature variation (room temperature influence test).

09.

Harmonic components in the current and voltage circuits.

10.

Odd harmonics in the AC current circuit

11.

Sub-harmonics in the AC current circuit

12.

Immunity to continuous magnetic fields of external origin

Tests of electrical requirements

Tests conducted to determine whether or not an electric product is safe or if it’s performing as it should are required by most governments. These tests are carried out by measuring the power consumption in certain circuits as well as its resistivity to over-heating. Without said testing, some products could lead to unwanted consequences such as electrocution. That’s why we perform these tests to ensure that each product is safe and functional. In most cases, six tests are carried out to certify electric products. Those are:

01.

Test of power consumption (losses in meter).

02.

Test of power consumption in voltage circuit.

03.

Test of power consumption in current circuit.

04.

Test of influence of self-heating.

05.

Test of influence of heating.

06.

Test of immunity to earth fault.

Environmental tests

Tests conducted to determine how an electric product would fair when exposed to extreme temperatures. These tests are executed by subjecting said product to extreme heat or extreme cold. After being exposed, the product’s functionality will be rigorously tested. These tests usually include three tests. Those tests are:

01.

Dry heat test.

02.

Cold test (low temperature test).

03.

Damp heat cyclic test.

Mechanical tests

Tests conducted to determine the integrity of an electric product are necessary for the over-all quality of the product. These tests are done by subjecting the product to salt as well as water and fire to ensure that said product is resistant to corrosion and penetration of small particles such as dust. We usually do four tests to conclude that the product is up to pre-set standards. Those tests are:

01.

Salt spray test (test for corrosion).

02.

Spring hammer test.

03.

Tests of protection against penetration of dust and water.

04.

Test of resistance to heat and fire (glow wire) on: terminal block, terminal cover or meter case.