What is the operating temperature of a power supply?
The operating temperature specified for a power supply refers to the temperature of the environment around it, rather than the external ambient temperature of the equipment. Typically, the operating temperature range for power supplies is between 0°C and 40°C, with some products able to reach standards of 0°C to 50°C.
What should you know about cold weather equipment?
There are two main areas of concern for products used in cold weather—safety and function. For Class I locations, the ability of the equipment to maintain its explosion-protection properties at low temperatures is of major importance.
Is it safe to install equipment in cold temperatures?
Installation in very cold temperatures is normally avoided, although it may sometimes be required. Operation of equipment is required for very low temperatures, so the equipment used must be both safe and functional at the low ambient temperature in which it is installed.
What is a wide temperature power supply?
Wide temperature power supplies usually operate within a range of -40 to -20°C up to 70–80°C, exceeding the range of conventional power supplies and meeting the needs of most applications. Although wide temperature power supplies utilize internal components with superior heat resistance, these materials still have thermal and efficiency limits.
Can electrical equipment be used in cold weather?
Electrical equipment used in cold weather regions are subjected to different environmental conditions than covered by most standard approvals. There are two main areas of concern for products used in cold weather—safety and function.
What happens if a power supply is cold?
Low power supply temperatures can: Increase the output ripple: The cold can add noise into the system and cause the output voltage ripple to increase, which can waste power. Prevent fully regulated outputs: Low temperatures also affect the power supply’s ability to regulate its output completely.
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