I need a circuit breaker, but I don't have it with me. Are they all the same?

No, it's best if you bring in the old breaker and match it up. If you know the name of the brand of service box, we could also match it that way.

I have a circuit breaker that tripped. Is this dangerous?

Usually the problem is simply an overload and you only need to run fewer appliances on the circuit. However, if it is not overloaded and it keeps tripping, you should suspect a short. Also, look for a defective cord, socket or plug.

Is it all right to replace a fuse or circuit breaker with a larger one to prevent them from blowing or tripping?

In most cases the answer is no. They are designed to blow at certain levels to protect equipment and for fire safety.

What is a time delay fuse?

Time delay fuses are used on circuits where appliance motors have initial surges of electrical power when the motor starts. This initial surge might blow a regular fuse.

I have some slots left on my circuit breaker box that do not have breakers in them. Can I add more circuits?

You need to see how many amps your box is rated for and then look at the existing circuits to see how many total amps are already being used. If you have not reached the maximum, it's possible to add more, but it's best to have a professional do the work inside the box unless you have the specific knowledge.

Can I add additional outlets to an existing circuit?

You need to figure the current circuit load in watts to see if it can handle additional use. The National Electric Code is 20 percent less than maximum. This means a 15-amp circuit has a safe capacity of 1,440 watts. A 20-amp circuit limit is 1,920 watts, a 25-amp circuit's limit is 2,400 watts and a 30-amp circuit has a safe limit of 2,880 watts.