ASTM F819-10

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Designation: F819 − 10
StandardTerminology
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Relating to Electrical Protective Equipment for Workers
ThisstandardisissuedunderthefixeddesignationF819;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginal
adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.Asuperscript
epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Referenced Documents blanket roll-up—a container made from fabric or similar
2 materialandspecificallydesignedtoprotecttheblanketfrom
1.1 ASTM Standards:
damage during storage or transportation.
F712 Test Methods and Specifications for Electrically Insu-
lating Plastic Guard Equipment for Protection of Workers
blowout, n—the extinguishing of the arc caused by a magnetic
F1116 Test Method for Determining Dielectric Strength of
field.
Dielectric Footwear
F1117 Specification for Dielectric Footwear
breakdown, electrical—the electrical discharge or arc occur-
ringbetweentheelectrodesandthroughtheequipmentbeing
2. Terminology
tested.
afterflame time, n—the length of time in seconds for which a
bulk storage—the storage of hose or covers together with one
material continues to flame after the ignition source has been
or more layers piled neatly, but without the benefit of
removed.
spacers, supports, or special protective containers.
DISCUSSION—In arc testing, the length of time for which a specimen
continues to exhibit a visible flaming as determined by a time display
charring, n—the formation of carbonaceous residue as the
video recording of the specimen during arc testing
result of pyrolysis or incomplete combustion.
arc duration, n—time duration of the arc(s).
closure, n—point on supply current wave form where arc is
arc energy (vi dt), n—sum of the instantaneous arc voltage
initiated.
values multiplied by the instantaneous arc current values
multiplied by the incremental time values during the arc, (J).
color splash—a splash, smear, or streak of contrasting color
evident on the inside or outside surface of the gloves or
arc gap—distance between the arc electrodes (inch).
sleeves that was deposited during the dipping operation and
Arc thermal performance value (ATPV), n—in arc testing,
is vulcanized into the material as part of the homogenous
the incident energy on a fabric or material that results in a
compound.
50 % probability that sufficient heat transfer through the
tested specimen is predicted to cause the onset of a second-
compatible—not injurious to or changing the physical or
degree skin burn injury based on the Stoll curve.
electrical characteristics of the blankets or affecting their
application, use, or acceptability.
arc voltage, n—voltage across the gap caused by the current
flowing through the resistance created by the arc gap, V.
cover—an electrically insulated enclosure designed to be
installed temporarily on various types of irregularly shaped
asymmetrical arc current, n—the total arc current produced
electrical equipment to protect personnel and equipment
during closure; it includes a direct component and a sym-
metrical component, A. working in close proximity.
designated person—an individual who is qualified by expe-
rience or training to perform an assigned task.
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These definitions are under the jurisdiction of ASTM Committee F18 on
Electrical Protective Equipment for Workers and are the direct responsibility of
distorted—physically changed from the natural and original
Subcommittee F18.60 on Terminology.
shape, caused by stress of any type.
Current edition approved April 1, 2010. Published May 2010. Originally
approved in 1995. Last previous edition approved in 2008 as F819-08. DOI:
10.1520/F0819-10. electrical testing facility—a location with qualified personnel,
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For referenced ASTM standards, visit the ASTM website, www.astm.org, or
testing equipment, and procedures for the inspection and
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
electrical testing of electrical insulating protective equip-
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. ment.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
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F819 − 10
DISCUSSION—The foam filling should be free of voids, separations,
electrode—the energized or grounded conductor portion of
holes, cracks, or the like.
electrical test equipment which is placed near or in contact
with the material or equipment being tested.
isolated—an object that is not readily accessible to persons
unless special means of access are used.
electrode clearance—the shortest path from the energized
electrode to the ground electrode.
ozone—a very active form of oxygen that is produced b
...