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Never settle for second best enclosures on outdoor electrical installations

03 February 2020

The choice of enclosure should never be an afterthought, left to the end of the project or under-budgeted, especially in outdoor installations. Here Chris Lloyd, Managing Director of Spelsberg UK, explains why a suitable enclosure is important and outlines a strategic approach to enclosure selection.

For outdoor electrical installations, the enclosure is the first line of defence against all weather-related issues. In some locations excessive temperatures are the norm, and perhaps even worse than prolonged heat or cold is daily or seasonal cycling between extremes. Storms can also be an issue, especially if wind-driven rain penetrates covers and seals. A humid atmosphere can be equally challenging, while freezing temperatures, snow and ice have their own ways of causing damage.

Other environmental factors to consider include corrosive or salty atmospheres and the damage that the Sun’s ultraviolet (UV) light can do to some materials. Further hazards applicable to some outdoor applications include impact damage from passing plant or equipment and the risk of vandalism if positioned in a public space. 

With all the variables it can be a real headache identifying which enclosure will provide adequate protection. Obviously, cost is always a concern, so it is always worth getting some expert guidance at an early stage in any project to make sure the chosen solution matches the potential challenges. 

Read the full article in the February issue of DPA.


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