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Hot Circuit Breaker? A Fan is NOT the Solution
August 25th, 2011 by Grow With Tyson

This month’s Poultry Housing Tip from the University of Georgia College of Agricultural and Environmental Sciences Cooperative Extension discusses how using a circulation fan to cool a hot breaker does not solve the problem:

With market age birds the last thing a producer wants is for the main electrical panel circuit breaker to trip.  Though it often seems like it may happen without any warning, the truth is that in most cases there is a very clear indicator that an electrical breaker will trip sometime in the near future, namely because the breaker is hot.  Basically, an electrical circuit breaker operates on temperature. As the flow of electrical current through a breaker increases, so does the temperature of the circuit breaker. Each circuit breaker is rated for a specific current flow. If the current exceeds a circuit breaker’s rating, it will warm up to a point where it will “break” the circuit, cutting power to the device/devices to prevent an electrical fire.  In addition to excessive current flow, circuit breaker overheating can be the result of poor quality electrical connections.  Poor electrical connections increase the resistance to the flow of electrical current, resulting in the generation of heat.  Potential problem areas include where the wires connect to the circuit breaker, where the circuit breaker connects to the main panel or possible electrical connections within the circuit breaker itself.  Generally, the temperature of a circuit breaker should not exceed 140oF.  If it does, this means the circuit breaker is in danger of tripping.  A good “rule of thumb” is that if you can’t hold your finger on the plastic part of the circuit breaker without getting burned, it is too hot . . . ”

Click HERE (PDF download) to read more.


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