On April day in the beautiful world, an old customer in Tangshan purchased a batch of 60W LED explosion-proof lamps for chemical factory workshops. Explosive zone.

Heat resistance test

The heat resistance shall be determined by the non-metallic material enclosure or the non-metallic part of the enclosure related to the integrity of the explosion-proof type, and the test of Table 17 shall be carried out.

thermal shock test

The glass transparent cover of the lamp and the equipment observation window shall be subjected to the thermal shock test. During the test, they shall be kept at a temperature not lower than the high working temperature, and water at a temperature of (10 ± 5) ℃ shall be sprayed on it through a nozzle with a diameter of 1 mm. water, no visible damage occurs.

A syringe (about 10cm) filled with 10°C water is often used to apply "water spray", and the water spray distance and water pressure have little effect on the test results.

Features:

1. Since LED is a solid-state cold light source, it has the advantages of high electro-optical conversion efficiency, low calorific value, low power consumption, safe and low operating voltage, long service life, and low energy consumption; therefore, high-power white light LED is a kind of explosion-proof lamp. Very ideal electric light source.

2, led explosion-proof energy-saving lamps, district road sealing technology; more in line with the national explosion-proof new technology. It belongs to a kind of electrical equipment used in special industries, which mainly solves lighting problems. It includes a lamp housing, a lamp shade arranged at the front end of the lamp housing, a luminous body and a battery arranged inside the lamp housing, and a switch arranged on the surface of the lamp housing. : The illuminator is a high-power LED module, and a wide voltage input drive circuit is arranged between the illuminator and the battery; the wide voltage input drive circuit includes a constant current chip, the constant current chip and the battery form a power module, and the LED module is connected in On the constant current chip, the power module and the LED module are glued together; the lampshade and the lamp housing are ultrasonically welded.

3. It takes advantage of the low calorific value of LED to achieve intrinsically safe explosion-proof, and the LED light source has a long life; the battery maintains a constant brightness at the end of full charge and discharge; a heat dissipation device is installed on the lamp housing to realize the LED module. Effective heat dissipation ensures the stability of use, and is suitable for lighting in various industries such as coal mines, petroleum, railways, and flood control.