Quality Control

Prioritize Quality from the Start

Our quality control starts with the inspection of incoming raw materials. We rigorously select raw material suppliers to ensure they meet our technical design requirements and high standards.

In manufacturing our product range, we adhere to the highest industry standards globally, making us a trusted SPD partner.

Our stringent quality testing and control processes have reduced our product defect rate to just 0.01%.

Impact Discharge Current Test

We conduct 8/20 μs waveform tests and 10/350 μs waveform tests to verify whether our products can effectively withstand lightning current strikes. We ensure that our surge protective devices (SPDs) comply with the IEC/EN 61643-11 international standard.

During testing, the thermal fuse only trips successfully when the low-temperature solder joint can no longer withstand the generated heat. If the heat is insufficient, the solder joint will not trip as expected. We rigorously adhere to standards during testing to ensure optimal accuracy and reliability of the results.

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Transient Overvoltage TOV Test

We test our SPD products using the Transient Overvoltage (TOV) Test to ensure they perform reliably and remain stable under short-term high voltage conditions. This rigorous testing demonstrates our products’ ability to withstand transient overvoltages without compromising their performance.

48-hour Salt Spray Test

Most of our products are delivered to customers via ocean freight, therefore, it is crucial that our products maintain exceptional performance after extended transportation periods. We conduct rigorous 48-hour salt spray tests to ensure our SPDs possess excellent corrosion resistance and durability, which is particularly important for SPDs used in humid environments.

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Thermal Stability Test

We adhere to the IEC61643-1 standard, testing the thermal stability of SPDs under maximum continuous operating voltage and specified environmental conditions. An SPD is considered thermally stable if its temperature decreases over time instead of continuing to rise or remaining constant. This ensures the SPD will not fail or degrade due to overheating. This test is crucial for preventing risks and losses associated with SPD overheating.

Flame Retardant Test

The prerequisite for a surge protection device to safeguard other equipment is to first protect itself. Hence, the flame retardant ability of a surge protection device itself is crucial. We conduct glow-wire tests to examine the flame retardant capability of plastic components, ensuring they are resistant to ignition and spontaneous combustion.

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Insulation Test

During the Insulation Test, we apply a test voltage higher than the normal operating voltage to various insulated parts of the SPD. We record the leakage current to ensure it falls within the standard range, evaluating the SPD’s withstand capability and stability under high voltage. Through rigorous testing, we ensure our SPD products exhibit excellent electrical insulation performance under both normal operating and fault conditions.

Damp Heat Test

We perform environmental conditioning tests on Surge Protective Devices to validate their operational stability and long-term reliability under extreme temperature-humidity conditions. Our tests meet the requirements of relevant standards such as IEC61643.

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Surge Protective Device (SPD) Performance Testing

We will conduct Nominal Discharge Current Test, Maximum Discharge Current Test and Voltage Protection Level Test on SPD. These tests will ensure that our SPD meets the qualified standards and has excellent performance.

Quality Control

Prioritize Quality from the Start

Impact Discharge Current Test

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Transient Overvoltage TOV Test

48-hour Salt Spray Test

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Thermal Stability Test

Flame Retardant Test

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Insulation Test

Damp Heat Test

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Surge Protective Device (SPD) Performance Testing

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