ASTM D1050-05(2011)

Standard Specification for Rubber Insulating Line Hose

ABSTRACT
This specification covers acceptance testing of rubber insulating line hose for use as a portable protective device for protection of workers from accidental contact with live electrical conductors. Two types of line hose are provided and are designated as Type I, non-resistant to ozone, and Type II and Type III, resistant to ozone. Five classes of line hose, differing in electrical characteristics, are provided and are designated as Class 0, Class 1, Class 2, Class 3, and Class 4. Four styles of line hose, differing in design characteristics, are provided and are designated as Style A, Style B, Style C, and Style D. The line hose shall be constructed in four styles: straight style, connector-end style, extended-lip style, and connectorend extended-lip style. The line hose shall be formed with an interlocking lip of sufficient length to prevent the device from being dislodged accidentally from the conductor it covers. The interlocking lip shall be closely adjacent to the inside surface contour of the outer wall. The depth of adapter end of connector-end style line hose shall be not less than a certain value, and its inside diameter shall be such that it will snugly grip the end of the line hose of the same size which it joins. Each line hose shall conform to the physical requirements such as determined tensile strength, elongation, tension set, tear resistance and moisture absorption.
SCOPE
1.1 This specification covers acceptance testing of rubber insulating line hose for use as a portable protective device for protection of workers from accidental contact with live electrical conductors.
1.2 Two types of line hose are provided and are designated as Type I, non-resistant to ozone, and Type II and Type III, resistant to ozone.
1.3 Five classes of line hose, differing in electrical characteristics, are provided and are designated as Class 0, Class 1, Class 2, Class 3, and Class 4.
1.4 Four styles of line hose, differing in design characteristics, are provided and are designated as Style A, Style B, Style C, and Style D.
The following precautionary caveat pertains only to the test method portion, Sections 16, 17, 18, 19, of this specification:This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. For specific precautionary statements, see 18.1.1.

General Information

• Status: Historical
• Publication Date: 31-Aug-2011
• ICS: 23.040.70 - Hoses and hose assemblies
• Technical Committee: F18 - Electrical Protective Equipment for Workers
• Drafting Committee: F18.25 - Insulating Cover-Up Equipment

Relations

• Replaces: ASTM D1050-05e1 - Standard Specification for Rubber Insulating Line Hose
• Effective Date: 01-Sep-2011
• Referred By: ASTM F478-14a(2019) - Standard Specification for In-Service Care of Insulating Line Hose and Covers
• Effective Date: 01-Sep-2011

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:D1050 −05 (Reapproved 2011)
Standard Specification for
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Rubber Insulating Line Hose
This standard is issued under the fixed designation D1050; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
This standard has been approved for use by agencies of the U.S. Department of Defense.
1. Scope D573Test Method for Rubber—Deterioration in an Air
Oven
1.1 This specification covers acceptance testing of rubber
D624Test Method for Tear Strength of Conventional Vul-
insulating line hose for use as a portable protective device for
canized Rubber and Thermoplastic Elastomers
protection of workers from accidental contact with live elec-
D2865Practice for Calibration of Standards and Equipment
trical conductors.
for Electrical Insulating Materials Testing
1.2 Two types of line hose are provided and are designated
F819Terminology Relating to Electrical Protective Equip-
as Type I, non-resistant to ozone, and Type II and Type III,
ment for Workers
resistant to ozone.
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2.2 Federal Specification:
1.3 Five classes of line hose, differing in electrical
PPP-B-636 Box, Shipping, Filterboard
characteristics, are provided and are designated as Class 0, 4
2.3 ANSI Standards:
Class 1, Class 2, Class 3, and Class 4.
C2National Electrical Safety Code, Section 44
1.4 Four styles of line hose, differing in design C39.5Safety Requirements for Electrical and Electronic
characteristics, are provided and are designated as Style A, Measuring and Controlling Instrumentation
Style B, Style C, and Style D. C84.1 Electric Power Systems and Equipment-Voltage
Ratings
1.5 The following precautionary caveat pertains only to the
test method portion, Sections 16, 17, 18, 19, of this specifica-
3. Terminology
tion:This standard does not purport to address all of the safety
concerns, if any, associated with its use. It is the responsibility 3.1 Definitions of Terms Specific to This Standard:
3.1.1 breakdown—the electrical discharge or arc occurring
of the user of this standard to establish appropriate safety and
health practices and determine the applicability of regulatory betweentheelectrodesandthroughtheequipmentbeingtested.
limitations prior to use.For specific precautionary statements,
3.1.2 flashover—the electrical discharge or arc occurring
see 18.1.1.
between electrodes and over or around, but not through, the
equipment being tested.
2. Referenced Documents
3.1.3 electrical testing facility—a location with qualified
2
2.1 ASTM Standards:
personnel,testingequipment,andproceduresfortheinspection
D297Test Methods for Rubber Products—ChemicalAnaly-
and electrical testing of electrical insulating protective equip-
sis
ment.
D412TestMethodsforVulcanizedRubberandThermoplas-
3.1.4 electrode clearance—the shortest path from the ener-
tic Elastomers—Tension
gized electrode to the ground electrode.
D570Test Method for Water Absorption of Plastics
3.1.5 insulated—separated from other conducting surfaces
by a dielectric substance (including air space) offering a high
resistance to the passage of current.
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This specification is under the jurisdiction of ASTM Committee F18 on
Electrical Protective Equipment for Workers and is the direct responsibility of
NOTE 1—When any object is said to be insulated, it is understood to be
Subcommittee F18.25 on Insulating Cover-Up Equipment. This standard replaces
insulated in a suitable manner for the conditions to which it is subjected.
ANSI Standard J6.1, which is no longer available
Otherwise, it is, within the purpose of this definition, uninsulated.
Current edition approved Sept. 1, 2011. Published September 2011. Originally
approved in 1949 as D1050–49T. Last previous edition approved in 2005 as
ε1
D1050–05 . DOI: 10.1520/D1050-05R11.
2 3
For referenced ASTM standards, visit the ASTM website, www.astm.org, or Available from Standardization Documents, Order Desk, Bldg. 4, Section D,
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM 700 Robbins Ave., Philadelphia, PA 19111-5094, ATTN: NPODS.
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Standards volume information, refer to the standard’s Document Summary page on Available from American National Standards Institute, 11 West 42nd Street,
the ASTM website. 13th Floor, New York, NY 10036.
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D1050−05 (2011)
Insulating covering of conductors is one means of making the conductor TABLE 1 Proof-Test/Use Voltage Relationship
insulated.
Nominal
Class of AC Proof- DC Proof-
Maximum
3.1.6 isolated—an object that is not rea
...