Lab Testing Machine 5000h Insulator Testing Apparatus IEC 62730-2024 Salt And Rain Test

Technical Specifications for the 5000 - hour Multiple Stress Test Setup in accordance with IEC 62730:2024

IEC 62730:2024

In this document, the technical requirements of the 5000h multiple stress test bench are given according to IEC 62730:2024.

Test Procedur

The test shall be carried out in a moisture sealed corrosion-proof chamber, the volume of which shall not exceed 20 m3.

Test Conditions

The cycle of stresses applied to the insulators and repeated for a period of 5 000 h is shown in Figure 3. The cycle is designed
so that the test specimens are also subjected to the effects of temperature variation and condensation .

Solar Simulation

The simulated solar irradiation is provided by a xenon arc lamp with a nominal output of 6500 W and equipped with 2 boron silicate
glass filters (see example in Figure 5) . The distance between the xenon lamp and test specimens is approximately 480 mm.

A new lamp and filters shall be used at the beginning of each test. The filters and , if necessary, the lamp shall be replaced
during the test according to the lamp manufacturer's recommendations .

Artificial Rain

The artificial rain shall be provided by nozzles mounted above the test specimens and outside their perimeter (see Figure 4 ). The
average precipitation rate shall be in accordance with IEC 60060-1 . Water of a minimum resistivity of 85 nm shall be used. Each
of the test specimens is sprayed individually.

Dry Heat

The chamber is heated up to 50 °C ± 2 °C; the time far the temperature to rise is 15 min as a maximum.

NOTE it is recommended to heat and insulate the walls of the chamber.

Humidity

Nominal relative humidity: RH = 95 % ± 3 % at 50 °C.