With the rapid growth of industries such as petroleum, chemical manufacturing, military production, engineering, factories, and mining, explosion-proof distribution boxes have become increasingly essential in various sectors including production, storage, and emergency operations. Ensuring the safety of these devices has become a critical concern, especially in environments where explosive gas mixtures may be present. Since explosion-proof distribution boxes can generate sparks during operation, if they come into contact with flammable gases at a site, it could lead to catastrophic explosions, endangering both human lives and valuable property. As one of the most commonly used lighting fixtures, their explosion-proof technology has long been a focus of attention and continuous improvement.
**First, the installation path for the circuit of an explosion-proof distribution box must meet specific requirements:**
(1) The main line should be as short as possible, taking into account the terrain and topography to reduce costs and complexity.
(2) It should avoid farmland and areas prone to geological hazards like depressions, erosion, ground subsidence, or unstable slopes. Also, it should not be placed where vehicles might accidentally hit it.
(3) The route should steer clear of locations where explosive or flammable materials are produced or stored.
(4) Whenever possible, the wiring should be installed in accessible areas to facilitate maintenance and construction.
(5) The selection of the path should take into account the importance of nearby buildings, future urban planning, and power grid development, ensuring enough space is left for expansion.
**Second, the explosion-proof distribution box circuit should avoid certain areas:**
(1) Areas designated for national memorials, monuments, or historical sites.
(2) Private yards or places with dense tree clusters.
(3) Regions prone to flash floods, frequent flooding, or unstable terrain like mountains, lakes, or areas with potential geological risks.
(4) Locations with large quantities of flammable or hazardous materials, or places with severe corrosion from gases, liquids, or contaminants.
**Third, explosion-proof dual emergency lights should also avoid specific locations:**
(1) Places that obstruct traffic or visibility.
(2) Areas near railway tracks or sloped roads.
(3) Underground facilities such as pipes, channels, power lines, or communication cables.
(4) Near building entrances, tunnel exits, or areas where vehicles frequently pass.
(5) Proximity to riverbanks, wetlands, marshes, or spring pools.
**Fourth, the height and depth of the poles must comply with safety standards:**
(1) The pole height should be determined based on the geographic location, the depth of the pole, the arc of the box, and the vertical clearance from the conductor to the ground. The height of the explosion-proof emergency light can be calculated using standard electrical safety formulas to ensure compliance with safety regulations.
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