Test for Mechanical strength:

To check Toughness,rigid and mechanical strength.

Test for temperature stability:

To assure SPD never release under 85℃/24 hrs.

Salt-fog Test:

To check corrosion and oxidation resistance.

Test for Temperature stability:

To assure surge protective device(SPD) work well under -40℃.

Insertion and withdraw force test:

To test insertion and withdraw force before and after surge shock,in order to ensure the MOV module could be easily replaced.

MOV leakage Current test:

It is a must test to all of the SPDs.To test Uc and pick up unreliable MOV chips.

Aging test:

A must test to check out the products work well in between plus or minus 20% of the nominal voltage.

Release test:

To test under -120℃ based on GB/T18802.1-2000.

High pot test after releasing:

To judge if SPD has released from circuit.

Test for endurance ability of MOV chip:

To apply 2.6 times Uc to shock MOV chip for 3 seconds.

TOV failure test:

A tester based on GB/T 1880212-2006 IEC61643-12.2002. To apply 1420 AC(RMS) voltage 10 cycles(200ms) to make sure SPD never overheat or fire.

Surge shock test:

To ensure the SPD never release and keep Up meet the requirement after surge shock.

Blind spot test:

To shock the product so as to find out if there is any blind spot in the protection area.

Intelligent electric drop tester:

Assume voltage drop suddenly to test the SPDs' impulse capacity.

Metallographical microscope analysis:

Key metal parts are very important to SPD's performances,e.g.elastomer,fusing part.this equipment could analyse structure of metal material accurately to make

Fast impulse test:

This test could find out the speed sensor,impulse sensor,extra-long distance signal sensor and SPD's protect ability to signal and weaken level to the signal.

Electron microscope:

Check the surface defects of materials to insure it meet the standards.

EDS test:

Apply static test on SPD to make sure them will meet security requirements under all kinds of confition.

Low frequency transmit test:

This test could find out SPD's ability to withstand disrupting in electromagnetic environment and it is disrupting level to peripheral.It is important to computer system and DCS system in Steel industry and petrochemical industry.