Solar radiation adds by a lot to the total heat load for outdoor cabinets,so you should minimize it with proper shielding. Your target temperature should be about 20°F below your equipment's maximum allowable temperature. Electronic control equipment typically runs safely at temperatures. . The temperature control specification for a battery back-up application is typically +/- 2C or greater. This range is suitable for thermostatic. . Outside plant enclosures for telecommunications, including cell tower base stations, control cabinets, power cabinets, and distribution stations, must be kept within the maximum recommended operating temperature of critical equipment to insure reliable communications links. As a rule of thumb, an electronics' life is cut in half for every 18°F (10°C) over room temperature. I woke up today to both my base stations lights being out and can't think of any other reason as to why.
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