c. Multiple taps/Circuits? Extending of circuitry?
Often within a panel, there will be two leads attached to a single circuit breaker or fuse (Fig. c1). This may simply be a convenient spot to attach two legs of a single circuit, or it may be an indication that a new circuit was added but there was no space to attach it. In the latter case, the one protective device would serve for two different circuits. A visual home inspection will not generally be able to conclusively identify any circuit difficulties. It is recommended that competent electricians perform a circuit check.
 Fig. c1
What to: How to:
One lead can be removed from the protective device to determine what no longer works. The other lead can then be removed to find out what else is on the circuit. If the total loads constitute an overload, the circuit should be divided. The desired result is to have one of the leads powered and protected by an additional breaker or fuse that has been installed in the panel.
“Piggy back” circuit breakers have been available for many panels in the past, but may no longer be available or allowed in some jurisdictions. They are really two circuit breakers packaged in the size and shape of one. If dubious, hire a professional electrician.
Reference: E10 |
