General requirements. Existing electrical fixtures, devices, wiring
and systems shall be maintained in safe working conditions and in
a manner which will avoid a potential source of ignition or shock
and shall be properly connected to a reasonable and adequate source
of electrical power. Any old, deteriorated, unused and/or unapproved
materials and equipment shall be removed and replaced, as may be required,
with approved materials and equipment. Existing electrical installations
or systems shall further be installed in accordance with standards
in force at the time of installation and approved by the National
Board of Fire Underwriters. Any alterations, major repairs or additional
installations shall comply with the requirements of the National Board
of Fire Underwriters. Fixed wiring, equipment, fixtures and devices
shall be firmly secured to the surface on which they are mounted.
Electrical wiring and equipment shall be protected against excessive
current demands by properly rated over-current devices installed in
approved locations. All panel boards shall be kept free from encumbrances
and shall be accessible at all times.
