×

Our company is a UL witness free test (TPTDP) laboratory. The full name of TPTDP is the third-party experimental data plan, which indicates that our company can carry out the test independently within its authorized scope. UL will issue a certificate based on the test data generated by our company.

Advantages of UL witness free testing (TPTDP) laboratory

1. The test plan is made by our company, saving time;

2. Save travel expenses because there is no need to witness;

3. It can be combined with the predictive test. As long as the pre test is qualified, it can be regarded as the formal test, saving costs.

Scope of UL witness free test authorization

- UL1977 connector witness free laboratory authorization

- UL2238 waterproof connector witness free laboratory authorization

- UL1059 terminal block witness free laboratory authorization

- UL486E wiring terminal witness free laboratory authorization

- UL1434 thermistor witness free laboratory authorization

- UL1449 varistor witness free laboratory authorization

- UL248-1 fuse witness free laboratory authorization

- UL248-13 Semiconductor fuse witness free laboratory authorization

- UL248-14 fuse witness free laboratory authorization

- UL248-19 Photovoltaic fuse witness free laboratory authorization

- UL60730 temperature controller_ Intelligent controller witness free laboratory authorization