Electrical box is like a junction the place where all the electric wires that connect many electrical devices in a room culminate into switches. These kind of switches function as an interface for user to use the electrical equipments, are attached within the electrical box. Several types of electric boxes are offered now a days for particular requirements. While a day-to-day electric box could do for a home, an explosion proof electric box is just what exactly you need for a hazardous place. This information makes it possible to determine the requirement for various kinds of electrical materials, specially electric boxes.
Types of electrical boxes
Electrical boxes can be set up indoors or outdoors. They are available in various designs, size and even material based on the utilization. Mainly for indoor usage for example in your home, these electrical boxes are concealed within the wall, while in case of outdoor applications, electrical boxes have to be weather proof and even durable enough to guard the switches fitted within from any mechanical stress. The shape of the electrical box is normally rectangle, square, octagonal, or even round and are manufactured from either metallic (cast iron, aluminum, steel) or non-metallic material (plastic, PVC). Plastic or even Pvc material boxes are low-cost and so easy-to-install yet somehow should not be used where metallic cables are utilized.
Difference between regular electric box and explosion proof electric box
Electrical boxes are really important not simply from the aesthetic perspective but even from the security view.
Since these help in covering the electrical wires and likewise protect the users from any potential sparks that could possibly occur because of overload, loose connections or simply ingress of foreign particles for example dust.
Generally these electrical boxes as well need to be set up in conditions that are dangerous and so so they will need to be designed in a different way from regular electrical boxes to make them explosion proof. A dangerous location basically involves an atmosphere whereby combustible or even explosive gases, liquids, or simply dusts are present either at all times or simply when there is a malfunction in regular operations.
A normal electrical box that is to be set up in a non-hazardous location need to be simply strong enough to bear the weight of the enclosures and even provide safety to personnel towards minor sparks, that can take place because of loose connections or maybe overload plus provide safety against the ingress of dirt / water Or oil and moreover corrosion.
Yet, in case of an explosion proof electrical box, they should be make certain security of the people, even in the case of a heavy explosion and thus really should be bulkier and therefore heavier compared to regular enclosures. The joints and so flanges of explosion proof enclosures should make sure that hot gases which are formed because of an internal explosion are cooled down to a temperature point that whenever they are released doesn't need enough heat to trigger another explosion. Based on the amount of danger the design of the explosion proof enclosure is further calibrated. Explosion proof enclosures are made making use of material having high strength like polyester, aluminum, and so stainless steel to ensure in case of an explosion, there is no external damage.
Finally, you have understood the value of different types of electric boxes, keep the info in mind when souring electrical materials.