Alternating current (ac) or direct current (dc) circuits are capable of carrying very different currents, as illustrated by the ratings on the switch in Figure 1. This is why it’s so important for ...

To make something work using electricity there needs to be an electrical circuit; a circuit is a complete loop that electricity can move around. Electricity moves from the power source (the battery or ...

Churning with voltage and resembling an explosion at the wire factory, the breaker panel exudes mystique. But it's just a big switch, filled with other smaller ­switches, which lead to the switches ...

Menlo Microsystems unveiled its Ideal Switch recently and it also raised $150 million to shake up the electronics industry. It calls this the biggest innovation since the transistor, as it can power ...

In the first part of this electrical troubleshooting series, we discussed how a consistent approach to electrical troubleshooting can help HVAC technicians get a comprehensive assessment of what is ...

All sorts of things can happen to cause power outages – trees can contact aerial utility lines, vehicles sometimes strike poles, birds and squirrels can make the wrong move and trip electrical ...

Q. What does the Code specify regarding the maximum mounting height of switches and circuit breakers used as switches? A. Section 404.8(A) of the 2011 NEC states that switches and circuit breakers ...