As a explosion -proof explosion -proof lamp, there must be a certain light transmittance part. At present, my country is basically made of glass material and fixedly installed on the cavity of the explosion -barrier lamp. Therefore, these glass transparent parts of the explosion -barrier lamps must not only meet the impact test and thermal drama test requirements of transparent parts in GB3836.1 general requirements, and more importantly, it is possible to withstand the dynamic strength specified in GB3836.2 test. This requires that these glass transparent parts need sufficient strength, that is, there must be sufficient thickness and a certain geometric shape distribution, and it must be treated with technical treatment such as tempered. When designing a styling glass transparent part, it must focus on the reasonable selection and shape of the shape of the glass. All the premise is to avoid uneven stress of transparent parts, and at the same time, we must try to ensure that the thickness of thickness does not occur. The main advantage of glass is that under high temperature, ultraviolet radiation, and long -term humid conditions, it can maintain common physical and light transmittance performance. The surface resistance of hard particles is available. Stress crack or corrosion. The main disadvantage of glass is its low brittleness and low tensile strength. In order to make up for these shortcomings, when designing glass transparent parts and lamp body assembly structures, a sealing cushion is usually inlaid between the metal parts of the glass transparent parts and the metal shell of the lamp shell to prevent contact with the metal components of the shell and damage the glass transparency. In order to prevent the impact of solid foreign objects from crushing glass transparent parts, the current commonly used Fangxu is the protection of grille mesh. If you do not install a grille mesh, the glass transparent parts must pass the high -energy impact test specified in GB3836.1.