ASTM F819-10(2015)

Standard Terminology Relating to Electrical Protective Equipment for Workers

General Information

• Status: Historical
• Publication Date: 31-Mar-2015
• ICS: 13.260 - Protection against electric shock. Live working
• Technical Committee: F18 - Electrical Protective Equipment for Workers
• Drafting Committee: F18.60 - Terminology

Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation: F819 − 10 (Reapproved 2015)
Standard Terminology
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
breakdown, electrical—the electrical discharge or arc occur-
F1117 Specification for Dielectric Footwear
ringbetweentheelectrodesandthroughtheequipmentbeing
tested.
2. Terminology
bulk storage—the storage of hose or covers together with one
afterflame time, n—the length of time in seconds for which a
or more layers piled neatly, but without the benefit of
material continues to flame after the ignition source has been
spacers, supports, or special protective containers.
removed.
DISCUSSION—In arc testing, the length of time for which a specimen
charring, n—the formation of carbonaceous residue as the
continues to exhibit a visible flaming as determined by a time display
result of pyrolysis or incomplete combustion.
video recording of the specimen during arc testing
closure, n—point on supply current wave form where arc is
arc duration, n—time duration of the arc(s).
initiated.
arc energy (vi dt), n—sum of the instantaneous arc voltage
color splash—a splash, smear, or streak of contrasting color
values multiplied by the instantaneous arc current values
evident on the inside or outside surface of the gloves or
multiplied by the incremental time values during the arc, (J).
sleeves that was deposited during the dipping operation and
is vulcanized into the material as part of the homogenous
arc gap—distance between the arc electrodes (inch).
compound.
Arc thermal performance value (ATPV), n—in arc testing,
compatible—not injurious to or changing the physical or
the incident energy on a fabric or material that results in a
electrical characteristics of the blankets or affecting their
50 % probability that sufficient heat transfer through the
application, use, or acceptability.
tested specimen is predicted to cause the onset of a second-
degree skin burn injury based on the Stoll curve.
cover—an electrically insulated enclosure designed to be
installed temporarily on various types of irregularly shaped
arc voltage, n—voltage across the gap caused by the current
electrical equipment to protect personnel and equipment
flowing through the resistance created by the arc gap, V.
working in close proximity.
asymmetrical arc current, n—the total arc current produced
designated person—an individual who is qualified by expe-
during closure; it includes a direct component and a sym-
rience or training to perform an assigned task.
metrical component, A.
distorted—physically changed from the natural and original
shape, caused by stress of any type.
These definitions are under the jurisdiction of ASTM Committee F18 on
electrical testing facility—a location with qualified personnel,
Electrical Protective Equipment for Workers and are the direct responsibility of
Subcommittee F18.60 on Terminology. testing equipment, and procedures for the inspection and
Current edition approved April 1, 2015. Published May 2015. Originally
electrical testing of electrical insulating protective equip-
approved in 1995. Last previous edition approved in 2010 as F819-'0. DOI:
ment.
10.1520/F0819-10R15.
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
electrode—the energized or grounded conductor portion of
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
electrical test equipment which is placed near or in contact
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. with the material or equipment being tested.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
F819 − 10 (2015)
electrode clearance—the shortest path from the energized ozone—a very active form of oxygen that is produced by
electrode to the ground electrode. corona, arcing, or ultraviolet rays.
embrittlement, n—the formation of a brittle residue as the ozone cutting and checking—cracks produced by ozone in a
result of pyrolysis or incomplete combustion. material under mechanical stress.
flashover—the electrical discharge or arc occurring between proof-test current—the current measured during ac proof
electrodes and over or around, but not through, the equip- tests.
ment being tested. DISCUSSION—This current is an indication of the validity of the
dielectric constant of the type of material used and the thickness of the
foot portion—the portion of the footwear below the wearer’s
total contact area under test.
ankle bone.
retest—the tests given after the initial acceptance test, usually
FRP insulating tubes and rods—fiberglass reinforced plastic
performed at regular periodic intervals or as required be-
(FRP) products manufactured so that the tubes and rods
cause of physical inspection.
produced will meet the electrical and mechanical require-
rubber—agenerictermthatincludeselastomersandelastomer
ments in the standard.
compounds, regardless of origin.
gauntlet—the area of a glove between the wrist and the
sleeve roll-up—a sleeve carrier formed of flat canvas-like
reinforced edge of the opening.
material in which a pair of sleeves is rolled lengthwise.
halogenation treatment—exposure of the entire rubber sur-
sleeve shoulder roll—the rolled or reinforced edge of an
face area to a halogen for the purpose of reducing surface
insulating sleeve nearest to the shoulder.
friction.
sole, n—the underside of the boot or rubber that would be in
heat attenuation factor HAF, n—in electric arc testing, the
contact with the ground.
percentoftheincidentenergywhichisblockedbyamaterial
DISCUSSION—SeeTestMethodF1116andSpecificationF1117.Inthis
at an incid
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This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation: F819 − 10 F819 − 10 (Reapproved 2015)
Standard Terminology
Relating to Electrical Protective Equipment for Workers
This standard is issued under the fixed designation F819; 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 (´) indicates an editorial change since the last revision or reapproval.
1. Referenced Documents
1.1 ASTM Standards:
F712 Test Methods and Specifications for Electrically Insulating Plastic Guard Equipment for Protection of Workers
F1116 Test Method for Determining Dielectric Strength of Dielectric Footwear
F1117 Specification for Dielectric Footwear
2. Terminology
afterflame time, n—the length of time in seconds for which a material continues to flame after the ignition source has been
removed.
These definitions are under the jurisdiction of ASTM Committee F18 on Electrical Protective Equipment for Workers and are the direct responsibility of Subcommittee
F18.60 on Terminology.
Current edition approved April 1, 2010April 1, 2015. Published May 2010May 2015. Originally approved in 1995. Last previous edition approved in 20082010 as
F819-08.-'0. DOI: 10.1520/F0819-10.10.1520/F0819-10R15.
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
DISCUSSION—
In arc testing, the length of time for which a specimen continues to exhibit a visible flaming as determined by a time display video recording of the
specimen during arc testing
arc duration, n—time duration of the arc(s).
arc energy (vi dt), n—sum of the instantaneous arc voltage values multiplied by the instantaneous arc current values multiplied
by the incremental time values during the arc, (J).
arc gap—distance between the arc electrodes (inch).
Arc thermal performance value (ATPV), n—in arc testing, the incident energy on a fabric or material that results in a 50 %
probability that sufficient heat transfer through the tested specimen is predicted to cause the onset of a second-degree skin burn
injury based on the Stoll curve.
arc voltage, n—voltage across the gap caused by the current flowing through the resistance created by the arc gap, V.
asymmetrical arc current, n—the total arc current produced during closure; it includes a direct component and a symmetrical
component, A.
blanket roll-up—a container made from fabric or similar material and specifically designed to protect the blanket from damage
during storage or transportation.
blowout, n—the extinguishing of the arc caused by a magnetic field.
breakdown, electrical—the electrical discharge or arc occurring between the electrodes and through the equipment being tested.
bulk storage—the storage of hose or covers together with one or more layers piled neatly, but without the benefit of spacers,
supports, or special protective containers.
charring, n—the formation of carbonaceous residue as the result of pyrolysis or incomplete combustion.
closure, n—point on supply current wave form where arc is initiated.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
F819 − 10 (2015)
color splash—a splash, smear, or streak of contrasting color evident on the inside or outside surface of the gloves or sleeves that
was deposited during the dipping operation and is vulcanized into the material as part of the homogenous compound.
compatible—not injurious to or changing the physical or electrical characteristics of the blankets or affecting their application, use,
or acceptability.
cover—an electrically insulated enclosure designed to be installed temporarily on various types of irregularly shaped electrical
equipment to protect personnel and equipment working in close proximity.
designated person—an individual who is qualified by experience or training to perform an assigned task.
distorted—physically changed from the natural and original shape, caused by stress of any type.
electrical testing facility—a location with qualified personnel, testing equipment, and procedures for the inspection and electrical
testing of electrical insulating protective equipment.
electrode—the energized or grounded conductor portion of electrical test equipment which is placed near or in contact with the
material or equipment being tested.
electrode clearance—the shortest path from the energized electrode to the ground electrode.
embrittlement, n—the formation of a brittle residue as the result of pyrolysis or incomplete combustion.
flashover—the electrical discharge or arc occurring between electrodes and over or around, but not through, the equipment being
tested.
foot portion—the portion of the footwear below the wearer’s ankle bone.
FRP insulating tubes and rods—fiberglass reinforced plastic (FRP) products manufactured so that the tubes and rods produced
will meet the electrical and mechanical requirements in the standard.
gauntlet—the area of a glove between the wrist and the reinforced edge of the opening.
halogenation treatment—exposure of the entire rubber surface area to a halogen for the purpose of reducing surface friction.
heat attenuation factor HAF, n—in electric arc testing, the percent of the incident energy which is blocked by a material at an
incident energy level equal to ATPV.
2 2
heat flux, n—the thermal intensity indicated by the amount of energy transmitted divided by area and time kW/m (cal/cm s).
hose—an electrical insulating tube with a longitudinal slit designed to be installed temporarily on energized electrical wires.
2 2
i t, n—sum of the instantaneous arc current values squared multiplied by the incremental time values during the arc (A s).
ignition, n—the initiation of combustion.
incident energy (E ) , n—the amount of energy (total heat, cal/cm ) received at a surface as a direct result of an electric arc
i
discharge as measured by temperature rise on copper calorimeters.
insulated—separated from other conducting surfaces by a dielectric substance (including air space) offering a high resistance to
the passage of current.
DISCUSSION—
When any object is said to be insulated, it is understood to be insulated in a sui
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