of the shared neutral if one device draws more than rated current. Grounding problems A ground connection that is missing or of inadequate capacity may not provide the protective functions as intended during a fault in the connected equipment. Extra connections between ground and circuit neutral may result in circulating current in the ground path, stray current introduced in the earth or in a structure, and stray voltage. Extra ground connections on a neutral conductor may bypass the protection provided by a ground-fault circuit interrupter. Signal circuits that rely on a ground connection will not function or will have erratic function if the ground connection is missing. See also Appliance classes Electrical bonding Electrical wiring Electrical wiring (UK) Electrical wiring (United States) Earthing arrangements Ground (electricity) References Further reading Rick Gilmour et al., editor, Canadian Electrical Code Part I, Nineteenth Edition, C22.1-02 Safety Standard for Electrical Installations, Canadian Standards Association, Toronto, Ontario Canada (2002) NFPA 70, National Electrical Code 2002, National Fire Protection Association, Inc., Quincy, Massachusetts USA, (2002). no ISBN IEE Wiring Regulations Regulations for Electrical Installations Fifteenth Edition 1981, The Institution of Electrical Engineers, (1981) Hitchin, Herts. United Kingdom Electrical Safety chapter from Lessons In Electric Circuits Vol 1 DC book and series. EDISON CIRCUITS POSE SAFETY HAZARD The Complete Guide To Home Wiring (link dead but multiple sources via Google search) Advanced Home Wiring Electrical safety Electrical wiring Power engineering Electric power distribution