For explosion -barrier lamps, explosion -barrier shells are key components of such explosion -barrier explosion -proof electrical equipment, so the explosion -barrier shell must meet the special requirements of general requirements and explosion -barrier performance.

1. General requirements

Debiastal lamps are a special lamps that must meet the common requirements of ordinary lamps.

1.1 The shape of the lamps is beautiful and generous. The structure is compact and reliable, lightweight and good.

1.2 Requirements are required to place electrical components and lamp accessories such as lamp seats, bulbs, reflexes, and stitch columns. At the same time, the rationality of the layout should be considered to facilitate installation and replacement of light sources and other maintenance.

1.3 The transparent part of a certain surface area should be available to effectively project the light flux of the light source inside the lamp.

1.4 Consider measures such as heat dissipation, dustproof, waterproof and anticorrosive, and give full guarantee in structure.

1.5 In the appropriate location, the internal and external grounding is reasonably lay up, and there is a corresponding ground logo.

2. special requirements

The national explosion -proof standard of explosion shell is required to withstand the explosive pressure of internal explosive gas mixtures and prevent the internal explosive flames from spreading to the explosive mixture around the shell. To meet this -performance, the following special requirements must be considered:

2.1 Explosive resistance. It is required that the lamp case has sufficient strength and stiffness to bear the explosion pressure caused by the inner cavity of the lamp. Therefore, the appropriate material and wall thickness must be selected to form a reasonable three -dimensional geometric shape distribution. This cavity structure must be beautiful and generous, but also To avoid the uneven stress caused by excessive physical changes as much as possible, it can pass the dynamic strength test specified by GB3836.2.

2.2 Explosion function. When designing the lamp's explosion shell, the proper explosion -proof co -surface structure parameters are selected in accordance with the provisions of GB3836.2. , The precision of the explosion thread, etc., can effectively prevent the internal explosion flames from spreading to the explosive mixture around the shell, and pass the explosion -barrier performance test specified by GB3836.2.

2.3 The explosion -barrier shell of the lamp is composed of 2 or more connecting cavities, which is often easy to cause pressure overlap. Generally speaking Essence To this end, we should try to increase the area of the Unicom hole so that the shape inside the shell can offset the overlapping pressure. If the overlapping pressure overlap is not actually available, explosions should be taken between the cavity and the cavity to offset the overlapping pressure.