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ASTM D1051-07

(Specification)

Standard Specification for Rubber Insulating Sleeves

Standard Specification for Rubber Insulating Sleeves

SCOPE
1.1 This specification covers manufacturing and testing of rubber insulating sleeves for protection of workers from electrical shock.
1.2 Two types of sleeves are provided and are designated as Type I, nonresistant to ozone, and Type II, resistant to ozone.
1.3 Five classes of sleeves, differing in electrical characteristics, are provided and are designated as Class 0, Class 1, Class 2, Class 3, and Class 4.
1.4 Two styles of sleeves, differing in configuration, are provided and are designated as Style A, straight taper, and Style B, curved elbow.
1.5 The values stated in SI units are to be regarded as the standard. See ASTM SI 10.
1.6 The following safety hazards caveat pertains only to the test methods portion, Sections 16-19, 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. Specific safety hazards statements are given in 18.2.

General Information

Status
Historical
Publication Date
31-Mar-2007
ICS
29.035.20 - Plastics and rubber insulating materials
Technical Committee
F18 - Electrical Protective Equipment for Workers
Drafting Committee
F18.15 - Worker Personal Equipment
Current Stage
Ref Project

Relations

Replaces
ASTM D1051-06 - Standard Specification for Rubber Insulating Sleeves
Effective Date
01-Apr-2007
Replaced By
ASTM D1051-08 - Standard Specification for Rubber Insulating Sleeves
Effective Date
01-Oct-2008
Referred By
ASTM F496-20 - Standard Specification for In-Service Care of Insulating Gloves and Sleeves
Effective Date
01-Apr-2007

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ASTM D1051-07 - Standard Specification for Rubber Insulating SleevesASTM D1051-07 - Standard Specification for Rubber Insulating Sleeves
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ASTM D1051-07 - Standard Specification for Rubber Insulating Sleeves
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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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: D 1051 – 07
Standard Specification for
1
Rubber Insulating Sleeves
This standard is issued under the fixed designation D 1051; 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. Scope D 518 Test Method for Rubber Deterioration—Surface
Cracking
1.1 This specification covers manufacturing and testing of
D 570 Test Method for Water Absorption of Plastics
rubber insulating sleeves for protection of workers from
D 573 Test Method for Rubber—Deterioration in an Air
electrical shock.
Oven
1.2 Two types of sleeves are provided and are designated as
D 624 Test Method for Tear Strength of Conventional
Type I, nonresistant to ozone, and Type II, resistant to ozone.
Vulcanized Rubber and Thermoplastic Elastomers
1.3 Five classes of sleeves, differing in electrical character-
D 1149 Test Method for Rubber Deterioration—Surface
istics, are provided and are designated as Class 0, Class 1,
Ozone Cracking in a Chamber
Class 2, Class 3, and Class 4.
D 1415 Test Method for Rubber Property—International
1.4 Two styles of sleeves, differing in configuration, are
Hardness
provided and are designated as Style A, straight taper, and
D 2240 Test Method for Rubber Property—Durometer
Style B, curved elbow.
Hardness
1.5 The values stated in SI units are to be regarded as the
D 2865 Practice for Calibration of Standards and Equip-
standard. See ASTM SI 10.
ment for Electrical Insulating Materials Testing
1.6 The following safety hazards caveat pertains only to the
F 819 Terminology Relating to Electrical Protective Equip-
test methods portion, Sections 16-19, of this specification: This
ment for Workers
standard does not purport to address all of the safety concerns,
SI 10 Standard for Use of the International System of Units
if any, associated with its use. It is the responsibility of the user
(SI): The Modern Metric System
of this standard to establish appropriate safety and health
practices and determine the applicability of regulatory limita-
3. Terminology
tions prior to use. Specific safety hazards statements are given
3.1 Definitions:
in 18.2.
3.1.1 color splash—a splash, smear, or streak of contrasting
2. Referenced Documents color evident on the inside or outside of the sleeves that was
2
deposited during the dripping operation and is vulcanized into
2.1 ASTM Standards:
the sleeve as part of the homogeneous compound.
D 149 Test Method for Dielectric Breakdown Voltage and
3.1.2 halogenation treatment—exposure of the entire sleeve
Dielectric Strength of Solid Electrical Insulating Materials
surface area to a halogen for the purpose of reducing surface
at Commercial Power Frequencies
friction.
D 297 Test Methods for Rubber Products—Chemical
3.1.3 user—the employer or entity purchasing the equip-
Analysis
ment to be utilized by workers for their protection; in the
D 412 Test Methods for Vulcanized Rubber and Thermo-
absence of such an employer or entity, the individual purchas-
plastic Elastomers—Tension
ing and utilizing the protective equipment.
3.1.4 For definitions of other terms, refer to Terminology
1
This specification is under the jurisdiction of ASTM Committee F18 on
F 819.
Electrical Protective Equipment for Workers and is the direct responsibility of
Subcommittee F18.15 on Worker Personal Equipment. This standard replacesANSI
4. Significance and Use
Standard J6.5, which is no longer available.
4.1 This specification covers the minimum electrical,
Current edition approved April 1, 2007. Published May 2007. Originally
approved in 1949. Last previous edition approved in 2006 as D 1051 – 06.
chemical, and physical properties guaranteed by the manufac-
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
turer and the detailed procedures by which such properties are
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
to be determined. The purchaser at his option may perform or
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. have performed any of these tests in order to verify the
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
1

---------------------- Page: 1 ----------------------
D 1051 – 07
guarantee. Claims for failure to meet the specification are manufacturers; it signifies only that, if made, they shall
subject to verification by the manufacturer. conform to the details of this specification.
4.2 Sleeves are used for personal protection; therefore,
7. Manufacture and Marking
when authorizing their use, a margin of safety shall be allowed
between t
...

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This specification covers the acceptance testing of insulating rubber matting that are used as a floor covering for the personal protection of workers. The sheeting shall be made from any elastomer or combination of elastomeric compounds. Two types of matting, differing in chemical and physical characteristics, are provided and are designated as Type I, which has been properly vulcanized, and Type II, which has one or more of the following special properties: (A) ozone resistance; (B) flame resistance; and (C) oil resistance. Five classes of matting, designated as Classes 0, 1, 2, 3, and 4, are assigned according to electrical protection characteristics. When evaluated in accordance with the test procedures detailed herein, the matting shall adhere to the following property requirements: electrical properties such as phase-phase maximum use voltage, AC and DC proof-test voltages, AC and DC dielectric breakdown test voltages, and AC and DC electrode clearances; an physical and chemical properties such as moisture absorption, oil resistance, tensile strength, tension set, elongation, resistance to accelerated heat aging, and flame resistance.
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1.1 This specification covers acceptance testing of rubber insulating matting for use as a floor covering for protection of workers.  
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1.1 This specification covers acceptance testing of rubber insulating blankets for protection of workers from accidental contact with live electrical conductors, apparatus, or circuits.  
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1.4 Five styles of covers, differing in design characteristics, are provided, and are designated as Style A, Style B, Style C, Style D, and Style E.  
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1.1 The purpose of this guide is to present methods and techniques for the visual inspection of electrical protective rubber products. This guide also includes descriptions and photographs of irregularities found in these products.  
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Standard Test Methods for Determining the Izod Pendulum Impact Resistance of Plastics

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5.1 Before proceeding with these test methods, reference should be made to the specification of the material being tested. Any test specimen preparation, conditioning, dimensions, and testing parameters covered in the materials specification shall take precedence over those mentioned in these test methods. If there is no material specification, then the default conditions apply.  
5.2 The pendulum impact test indicates the energy to break standard test specimens of specified size under stipulated parameters of specimen mounting, notching, and pendulum velocity-at-impact.  
5.3 The energy lost by the pendulum during the breakage of the specimen is the sum of the following:  
5.3.1 Energy to initiate fracture of the specimen;  
5.3.2 Energy to propagate the fracture across the specimen;  
5.3.3 Energy to throw the free end (or ends) of the broken specimen (“toss correction”);  
5.3.4 Energy to bend the specimen;  
5.3.5 Energy to produce vibration in the pendulum arm;  
5.3.6 Energy to produce vibration or horizontal movement of the machine frame or base;  
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5.3.8 Energy to indent or deform plastically the specimen at the line of impact; and  
5.3.9 Energy to overcome the friction caused by the rubbing of the striker (or other part of the pendulum) over the face of the bent specimen.  
5.4 For relatively brittle materials, for which fracture propagation energy is small in comparison with the fracture initiation energy, the indicated impact energy absorbed is, for all practical purposes, the sum of factors 5.3.1 and 5.3.3. The toss correction (see 5.3.3) may represent a very large fraction of the total energy absorbed when testing relatively dense and brittle materials. Test Method C shall be used for materials that have an Izod impact resistance of less than 27 J/m (0.5 ft·lbf/in.). (See Appendix X4 for optional units.) T...
SCOPE
1.1 These test methods cover the determination of the resistance of plastics to “standardized” (see Note 1) pendulum-type hammers, mounted in “standardized” machines, in breaking standard specimens with one pendulum swing (see Note 2). The standard tests for these test methods require specimens made with a milled notch (see Note 3). In Test Methods A, C, and D, the notch produces a stress concentration that increases the probability of a brittle, rather than a ductile, fracture. In Test Method E, the impact resistance is obtained by reversing the notched specimen 180° in the clamping vise. The results of all test methods are reported in terms of energy absorbed per unit of specimen width or per unit of cross-sectional area under the notch. (See Note 4.)
Note 1: The machines with their pendulum-type hammers have been “standardized” in that they must comply with certain requirements, including a fixed height of hammer fall that results in a substantially fixed velocity of the hammer at the moment of impact. However, hammers of different initial energies (produced by varying their effective weights) are recommended for use with specimens of different impact resistance. Moreover, manufacturers of the equipment are permitted to use different lengths and constructions of pendulums with possible differences in pendulum rigidities resulting. (See Section 5.) Be aware that other differences in machine design may exist. The specimens are “standardized” in that they are required to have one fixed length, one fixed depth, and one particular design of milled notch. The width of the specimens is permitted to vary between limits.
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ASTM D785-23(Test Method)
Standard Test Method for Rockwell Hardness of Plastics and Electrical Insulating Materials

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4.1 A Rockwell hardness number is a number derived from the net increase in depth impression as the load on an indenter is increased from a fixed minor load to a major load and then returned to a minor load (Procedure A). A Rockwell alpha (α) hardness number represents the maximum possible remaining travel of a short-stroke machine from the net depth of impression, as the load on the indenter is increased from a fixed minor load to a major load (Procedure B). Indenters are round steel balls of specific diameters. Rockwell hardness numbers are always quoted with a scale symbol representing the indenter size, load, and dial scale used. This test method is based on Test Methods E18. Procedure A (Section 11) yields the indentation of the specimen remaining 15 s after a given major load is released to a standard 10-kg minor load. Procedure B (Section 12) yields the indentation of the indenter into the specimen after a 15-s application of the major load while the load is still applied. Each Rockwell scale division represents 0.002-mm (0.00008-in.) vertical movement of the indenter. In practice, the Rockwell hardness number is derived from the following relationship:  
     where:
  HR  =  the Rockwell hardness number, and   e  =  the depth of impression after removal of the major load, in units of 0.002 mm. This relation only holds for the E, M, L, R, and K scales.    
4.2 A Rockwell hardness number is directly related to the indentation hardness of a plastic material, with the higher the reading the harder the material. An α hardness number is equal to 150 minus the instrument reading. Due to a short overlap of Rockwell hardness scales by Procedure A, two different dial readings on different scales may be obtained on the same material, both of which may be technically correct.  
4.3 For certain types of materials having creep and recovery, the time factors involved in applications of major and minor loads have a considerable effect on the results of the measureme...
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1.2 The values stated in SI units are to be regarded as standard. The values given in parentheses are for information only.  
1.3 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.
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