Click here to make tpub.com your Home Page

Page Title: Definitions cont'd
Back | Up | Next

Click here for thousands of PDF manuals

Google


Web
www.tpub.com

Home

   
Information Categories
.... Administration
Advancement
Aerographer
Automotive
Aviation
Construction
Diving
Draftsman
Engineering
Electronics
Food and Cooking
Logistics
Math
Medical
Music
Nuclear Fundamentals
Photography
Religion
   
   

 



DOE-HDBK-1092-98
Disconnecting (or Isolating) switch--(Over 600 volts, nominal.) A mechanical switching device
used for isolating a circuit or equipment from a source of power.
Dry location--See "Location."
Electric sign--A fixed, stationary, or portable self-contained, electrically illuminated utilization
equipment with words or symbols designed to convey information or attract attention.
Enclosed--Surrounded by a case, housing, fence or walls which will prevent persons from
accidentally contacting energized parts.
Enclosure--The case or housing of apparatus, or the fence or walls surrounding an installation to
prevent personnel from accidentally contacting energized parts, or to protect the equipment from
physical damage.
Equipment--A general term including material, fittings, devices, appliances, fixtures, apparatus,
and the like, used as a part of, or in connection with, an electrical installation.
Equipment grounding conductor--See "Grounding conductor, equipment."
Explosion-proof apparatus--Apparatus enclosed in a case that is capable of withstanding an
explosion of a specified gas or vapor which may occur within it and of preventing the ignition of a
specified gas or vapor surrounding the enclosure by sparks, flashes, or explosion of the gas or vapor
within, and which operates at such an external temperature that it will not ignite a surrounding
flammable atmosphere.
Exposed--(As applied to live parts.) Capable of being inadvertently touched or approached nearer
than a safe distance by a person. It is applied to parts not suitably guarded, isolated, or insulated. (See
"Accessible." and "Concealed.")
Exposed--(As applied to wiring methods.) On or attached to the surface or behind panels designed
to allow access. [See "Accessible. (As applied to wiring methods.)"]
Exposed--(For the purposes of 1910.308(e), Communications systems.) Where the circuit is in such
a position that in case of failure of supports or insulation, contact with another circuit may result.
Externally operable--Capable of being operated without exposing the operator to contact with live
parts.
Feeder--All circuit conductors between the service equipment, or the generator switchboard of an
isolated plant, and the final branch-circuit overcurrent device.
Fitting--An accessory such as a locknut, bushing, or other part of a wiring system that is intended
primarily to perform a mechanical rather than an electrical function.
B-9


Privacy Statement - Press Release - Copyright Information. - Contact Us

Integrated Publishing, Inc. - A (SDVOSB) Service Disabled Veteran Owned Small Business