skip navigationOfficial State of NH Site
space
DOS Logo Division of Fire Safety
space
Local Events | Photo Gallery | Searchclear
space

 
Building Construction & Safety
Electrical Safety and Licensing
Most Common Installation Deficiencies - 2005

The following is a list of the most common deficiencies found with electrical installations in the State of New Hampshire. The list is in random order and it has been formatted to the 2005 edition of the National Electrical Code (NFPA 70-2005).

To view the deficiencies and examples for each deficiency, please click on the light bulb for the appropriate deficiency.

light bulb 1.) A grounding electrode conductor that is attached to the grounded conductor or equipment grounding terminal bar of a remote panelboard.
light bulb 2.) The bonding of metal water piping in the vicinity of separately derived systems.
light bulb 3.) The non-use of expansion fittings in Rigid Non-Metallic (PVC) conduits that are subject to thermal expansion and contraction.
light bulb 4.) The non-use of expansion fittings on conduits emerging from the earth where attached to fixed equipment and are installed in locations that are subject to ground movement.
light bulb 5.) The improper installation and securing of expansion fittings in runs of Rigid Non-Metallic (PVC) Conduit.
light bulb 6.) Use of electrical equipment without following the manufacturer’s instructions.
light bulb 7.) The non-bonding of service raceways and equipment.
light bulb 8.) The non-use of a locking type disconnect for submersible well pump motors.
light bulb 9.) The improper connection of septic pumps.
light bulb 10.) Clearances working clearances, headroom, dedicated space.
light bulb 11.) Failure to re-identify the white conductor in cables installed for the purpose of switching, employing the white conductor as an ungrounded conductor.
light bulb 12.) The terminating of more than one grounded conductor under a single terminal.
light bulb 13.) The failure to support luminaires to the ceiling grid in suspended ceilings.
light bulb 14.) The flexible connection to emergency system equipment in hospitals.
light bulb 15.) The mechanical protection of fire pump wiring and control wiring.
light bulb 16.) The location of the disconnecting means for Emergency Systems.
light bulb 17.) The separation of Emergency System Conductors from other conductors.
light bulb 18.) Emergency, Legally Required and Optional Standby Signs
light bulb 19.) The sealing of underground raceways or raceways that are exposed to different temperatures.
   
  New Hampshire Department of Safety | 33 Hazen Drive | Concord, NH 03305
TDD Access: Relay NH 1-800-735-2964
space
nh seal NH.gov | Privacy Policy | Accessibility Policy