Enclosure Rain Hoods & Drip Shields
Electrical enclosures are designed to house industrial components and to protect them from the surrounding environment. They are also designed to protect operators from electric shock. They come in many different shapes, sizes and materials. Some things to consider when selecting the proper enclosure would be the number of components housed inside and what material and rating will provide the appropriate protection. Electrical enclosures that are NEMA Type 4 and 4X for indoor and outdoor use are automatically assumed to be “water tight,” which they are not. Additional accessories can be added to help prevent any unwanted liquid or debris from entering the enclosure.
Enclosure rain hoods are mainly used to protect thermal accessories, usually fans, installed on the outside of electrical enclosures from snow, rain or sleet. Rain hoods can also be installed on top of flat roof electrical enclosures. This can help to prevent the build up of liquids, dirt, dust, minerals and debris. If corrosive solids and liquids are allowed to build up on top of an enclosure, the integrity of the coating and material may be compromised, which can lead to corrosion and liquid and debris entering the enclosure.
Enclosure drip shields are designed specifically to prevent dripping water and settling dust from entering the electrical enclosure along the top of the door frame. Installing drip shields can also minimize the risk related to prolonged exposure to rain, snow and ice being trapped in the external cavity of the door which could lead to water absorption into the gaskets.
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