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d. Circuit(s) not connected in panel:
Sometimes old circuits are disconnected within a panel and the old protective devices are used for new circuits. For example, window air conditioning circuits are usually no longer used once central air conditioning is added to a house. Furthermore, someone can pre‑wire something in the anticipation of future remodeling or additions. Most of the time, a discontinued wire within a panel box will be coiled and tucked away (Fig. d1, Item A). Sometimes the old wire will be disconnected and left hanging loose (Fig. d1, Item B).
 Fig. d1
What to: How to:
There is often no need for action provided that everything in the house is working properly. It might prove wise to run a circuit test to determine exactly what is on each circuit. For example, it a short was found in a wire run, the home lead may be abandoned, with power being supplied by a new home lead for the circuit. Call a professional electrician if you suspect this.
Reference: E10 |
