ASTM F819-06
(Terminology)Standard Terminology Relating to Electrical Protective Equipment for Workers
Standard Terminology Relating to Electrical Protective Equipment for Workers
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Designation:F 819–06
Standard Terminology
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Relating to Electrical Protective Equipment for Workers
This standard is issued under the fixed designation F 819; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (e) indicates an editorial change since the last revision or reapproval.
1. Referenced Documents breakdown, electrical—the electrical discharge or arc occur-
2 ringbetweentheelectrodesandthroughtheequipmentbeing
1.1 ASTM Standards:
tested.
F 1116 Test Method for Determining Dielectric Strength of
bulk storage—the storage of hose or covers together with one
Dielectric Footwear
or more layers piled neatly, but without the benefit of
F 1117 Specification for Dielectric Footwear
spacers, supports, or special protective containers.
2. Terminology
charring, n—the formation of carbonaceous residue as the
result of pyrolysis or incomplete combustion.
afterflame time, n—the length of time in seconds for which a
closure, n—point on supply current wave form where arc is
material continues to flame after the ignition source has been
initiated.
removed.
color splash—a splash, smear, or streak of contrasting color
DISCUSSION—In arc testing, the length of time for which a specimen
evident on the inside or outside surface of the gloves or
continues to exhibit a visible flaming as determined by a time display
sleeves that was deposited during the dipping operation and
video recording of the specimen during arc testing
is vulcanized into the material as part of the homogenous
compound.
arc duration, n—time duration of the arc(s).
compatible—not injurious to or changing the physical or
arc energy (vi dt), n—sum of the instantaneous arc voltage
electrical characteristics of the blankets or affecting their
values multiplied by the instantaneous arc current values
application, use, or acceptability.
multiplied by the incremental time values during the arc, (J).
cover—an electrically insulated enclosure designed to be
arc gap—distance between the arc electrodes (inch).
installed temporarily on various types of irregularly shaped
Arc thermal performance value (ATPV), n—in arc testing,
electrical equipment to protect personnel and equipment
the incident energy on a fabric or material that results in a
working in close proximity.
50 % probability that sufficient heat transfer through the
delta peak temperature,n—differencebetweenthemaximum
tested specimen is predicted to cause the onset of a second-
temperature and the initial temperature of the sensor during
degree skin burn injury based on the Stoll curve.
the test, °C.
arc voltage, n—voltage across the gap caused by the current
designated person—an individual who is qualified by expe-
flowing through the resistance created by the arc gap, V.
rience or training to perform an assigned task.
asymmetrical arc current, n—the total arc current produced
distorted—physically changed from the natural and original
during closure; it includes a direct component and a sym-
shape, caused by stress of any type.
metrical component, A.
electrical testing facility—a location with qualified personnel,
blanket roll-up—a container made from fabric or similar
testing equipment, and procedures for the inspection and
materialandspecificallydesignedtoprotecttheblanketfrom
electrical testing of electrical insulating protective equip-
damage during storage or transportation.
ment.
blowout, n—the extinguishing of the arc caused by a magnetic
electrode—the energized or grounded conductor portion of
field.
electrical test equipment which is placed near or in contact
with the material or equipment being tested.
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These definitions are under the jurisdiction of ASTM Committee F18 on
electrode clearance—the shortest path from the energized
Electrical Protective Equipment for Workers and are the direct responsibility of
electrode to the ground electrode.
Subcommittee F18.60 on Terminology.
Current edition approved Nov. 15, 2006. Published December 2006. Originally embrittlement, n—the formation of a brittle residue as the
approved in 1995. Last previous edition approved in 2005 as F 819-05.
result of pyrolysis or incomplete combustion.
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For referenced ASTM standards, visit the ASTM website, www.astm.org, or
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website.
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F819–06
flashover—the electrical discharge or arc occurring between retest—the tests given after the initial acceptance test, usually
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