thisoldhouse
How and Why Electrical Circuit Breakers Trip in Your Home
Chances are that if a circuit breaker trips when you turn on or plug in an appliance, you have an electrical overload problem In order to restore the electricity, you have to determine the circuit breaker panel and the tripped breaker, and then reset it. Dealing with a tripped circuit breaker is the the last [...]
How Accurate is Your Multimeter and What is True Rms?
Every electrical technician knows the difference between DC (Direct Current) and AC (Alternating Current). Every electrical technician also realizes the importance of taking accurate current measurements to protect conductors from exceeding their insulators’ ability to withstand heat or assuring devices under power work properly. However, does every electrical technician realize that electrical current measurements aren’t [...]
How to install a new circuit breaker
Two articles in two last year’s numbers of the magazine Er have presented a survey of operation of overcurrent protective devices, based on the use of traditional safety fuses. A similar survey can be presented also for the protective devices, manufactured as various protective switches.
These devices are in the first place:
* circuit breakers complying [...]