ASTM D1051-95(2000)

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 , 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: 09-Apr-2002
• ICS: 29.035.20 - Plastics and rubber insulating materials
• Technical Committee: F18 - Electrical Protective Equipment for Workers
• Drafting Committee: F18.15 - Worker Personal Equipment

Relations

• Replaces: ASTM D1051-95 - Standard Specification for Rubber Insulating Sleeves
• Effective Date: 10-Apr-2002
• Replaced By: ASTM D1051-02 - Standard Specification for Rubber Insulating Sleeves
• Effective Date: 10-Apr-2002
• Referred By: ASTM F496-20 - Standard Specification for In-Service Care of Insulating Gloves and Sleeves
• Effective Date: 10-Apr-2002

Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or discontinued.
Contact ASTM International (www.astm.org) for the latest information.
Designation: D 1051 – 95 (Reapproved 2000)
Standard Specification for
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 624 Test Method for Tear Strength of Conventional
Vulcanized Rubber and Thermoplastic Elastomers
1.1 This specification covers acceptance testing of rubber
D 1149 Test Method for Rubber Deterioration—Surface
insulating sleeves for protection of workers from electrical
Ozone Cracking in a Chamber
shock.
D 1415 Test Method for Rubber Property—International
1.2 Two types of sleeves are provided and are designated as
Hardness
Type I, nonresistant to ozone, and Type II, resistant to ozone.
D 2240 Test Method for Rubber Property—Durometer
1.3 Five classes of sleeves, differing in electrical character-
Hardness
istics, are provided and are designated as Class 0, Class 1,
F 819 Definitions of Terms Relating to Electrical Protective
Class 2, Class 3, and Class 4.
Equipment for Workers
1.4 Two styles of sleeves, differing in configuration, are
F 1236 Guide for Visual Inspection of Electrical Protection
provided and are designated as Style A, straight taper, and
Rubber Products
Style B, curved elbow.
2.2 ANSI Standard:
1.5 All type I sleeves may be provided with or without a
C84.1 Voltage Ratings for Electric Power Systems and
surface halogenation treatment.
Equipment
1.6 The following safety hazards caveat pertains only to the
test methods portion, Sections 16-19, of this specification: This
3. Terminology
standard does not purport to address all of the safety concerns,
3.1 Definitions of Terms Specific to This Standard:
if any, associated with its use. It is the responsibility of the user
3.1.1 color splash—a splash, smear or streak of contrasting
of this standard to establish appropriate safety and health
color evident on the inside or outside of the sleeves that was
practices and determine the applicability of regulatory limita-
deposited during the dripping operation and is vulcanized into
tions prior to use. Specific safety hazards statements are given
the sleeve as part of the homogeneous compound.
in 18.2.
3.1.2 halogenation treatment—exposure of the entire sleeve
2. Referenced Documents surface area to a halogen for the purpose of reducing surface
friction.
2.1 ASTM Standards:
3.1.3 user—the employer or entity purchasing the equip-
D 149 Test Method for Dielectric Breakdown Voltage and
ment to be utilized by workers for their protection; in the
Dielectric Strength of Solid Electrical Insulating Materials
absence of such an employer or entity, the individual purchas-
at Commercial Power Frequencies
ing and utilizing the protective equipment.
D 297 Test Methods for Rubber Products—Chemical
3.1.4 voltage, maximum use—the a-c voltage (rms) rating of
Analysis
the protective equipment that designates the maximum nominal
D 412 Test Methods for Vulcanized Rubber and Thermo-
design voltage of the energized system that may be safely
plastic Elastomers—Tension
worked. The nominal design voltage is equal to the phase to
D 518 Test Method for Rubber Deterioration—Surface
phase voltage on multiphase circuits.
Cracking
4 3.1.4.1 If there is no multiphase exposure in a system area
D 570 Test Method for Water Absorption of Plastics
and the voltage exposure is limited to phase (polarity on d-c
D 573 Test Method for Rubber—Deterioration in an Air
3 systems) to ground potential, the phase (polarity on d-c
Oven
systems) to ground potential shall be considered to be the
nominal design voltage. If electrical equipment and devices are
This specification is under the jurisdiction of ASTM Committee F18 on
insulated, or isolated or both, such that the multiphase exposure
Electrical Protective Equipment for Workers and is the direct responsibility of
on a grounded wye circuit is removed, then the nominal design
Subcommittee F18.15 on Worker Personal Equipment. This standard replaces ANSI
Standard J6.5, which is no longer available.
Current edition approved June 15, 1995. Published August 1995. Originally
published as D 1051 – 49 T. Last previous edition D 1051 – 94.
2 5
Annual Book of ASTM Standards, Vol 10.01. Annual Book of ASTM Standards, Vol 10.03.
3 6
Annual Book of ASTM Standards, Vol 09.01. Available from American National Standards Institute, Inc., 11 West 42nd
Annual Book of ASTM Standards, Vol 08.01. Street, 13th Floor, New York, NY 10036.
Copyright © ASTM, 100 Barr Harbor Drive, West Conshohocken, PA 19428-2959, United States.
D 1051
voltage may be considered as the phase-to-ground voltage on 6. Ordering Information
that circuit.
6.1 Orders for sleeves under this specification should in-
3.1.5 voltage, nominal design—a nominal value consistent
clude the following information:
with the latest revision on ANSI C84.1, assigned to the circuit
6.1.1 Type,
or system for the purpose of conveniently designating its
6.1.2 Class,
voltage class.
6.1.3 Style,
6.1.4 Size,
4. Significance and Use
6.1.5 Color, and
4.1 This specification covers the minimum electrical,
6.1.6 With or without halogenation treatment.
chemical, and physical properties guaranteed by the manufac-
6.2 The listing of types, classes, styles, sizes, and colors is
turer and the detailed procedures by which such properties are
not intended to mean that all shall necessarily be available from
to be determined. The purchaser at his option may perform or
manufacturers; it signifies only that, if made, they shall
have performed any of these tests in order to verify the
conform to the details of this specification.
guarantee. Claims for failure to meet the specification are
7. Manufacture and Marking
subject to verification by the manufacturer.
4.2 Sleeves are used for personal protection; therefore,
7.1 The sleeves shall be produced by a seamless process.
when authorizing their use, a margin of safety shall be allowed
7.2 Sleeves shall have a smooth finish and self-reinforced
between the maximum voltage on which they are used and the
edges.
proof-test voltage at which they are tested. The relationship
7.3 The holes provided in sleeves for the purposes of strap
between proof-test voltage and the maximum voltage at which
or harness attachments shall have non-metallic reinforced
the sleeves shall be used is shown in Table 1.
edges and shall be nominally 8 mm ( ⁄16 in.) in diameter.
4.3 Work practices vary from user to user, dependent upon
7.4 Each sleeve shall be marked clearly and permanently
many factors. These may include but are not limited to,
with the name of the manufacturer or supplier, ASTM D1051,
operating system voltages, construction design, work proce-
type, class, size, and right or left. All such marking shall be
dure techniques, weather conditions, etc. Therefore, except for
confined to the shoulder flap area and shall be nonconducting
the restrictions set forth in this specification because of design
and applied in such a manner as to not impair the required
limitations, the use and maintenance of this equipment is
properties of the sleeves.
beyond the scope of this specification.
7.4.1 A label shall be used to identify the voltage class:
4.4 It is common practice and the responsibility of the user
Class 0—red, Class 1—white, Class 2—yellow, Class
of this type of protective equipment to prepare complete
3—green, and Class 4—orange. The other required informa-
instructions and regulations to govern the correct and safe use
tion may be placed on the label or molded directly into the
of such equipment.
sleeve.
7.4.2 To minimize problems of marking and identification,
5. Classification
the following standard abbreviations may be used: Regular
5.1 Sleeves covered under this specification shall be desig-
(Rg), Large (Lg), Extra Large (XLg), and Class 1 (1), Class 2
nated as Type I or Type II; Class 0, Class 1, Class 2, Class 3,
(2), etc. Right or left shall not be abbreviated.
and Class 4; and Style A or Style B.
7.4.3 At the request of the user, the sleeves may be given a
5.1.1 Type I, nonresistant to ozone, made from a high-grade
halogenation treatment to reduce surface friction. This treat-
cis-1,4-polyisoprene rubber compound of natural or synthetic
ment shall have no detrimental effect upon the electrical,
origin, properly vulcanized.
chemical or physical properties of the sleeves.
5.1.2 Type II, resistant to ozone, made of any elastomer or
8. Chemical and Physical Requirements
combination of elastomeric compounds.
5.1.3 The class designation shall be based on the electrical
8.1 The sleeve material shall conform to the physical
properties as shown in Table 1. requirements in Table 2, the accelerated aging in 19.2.5, and,
5.1.4 Style A, straight taper design. for Type I sleeves, the determination of rubber polymer in
5.1.5 Style B, curved elbow design. accordance with 19.1.1.
9. Electrical Requirements
TABLE 1 Proof Test/Use Voltage Relationship
9.1 Each sleeve shall be given a proof test and shall
Maximum Use
Class of A-C Proof-Test D-C Proof-Test
A
Voltage a-c
Sleeve Voltage rms V Voltage avg, V
TABLE 2 Physical Requirements
(rms), V
Property Type I Type II
0 5 000 20 000 1 000
1 10 000 40 000 7 500
Tensile strength, min, Die C, MPa (psi) 17.2 (2500) 10.3 (1500)
2 20 000 50 000 17 000
Tensile stress at 200 %, max, MPa (psi) 2.1 (300) 2.1 (300)
3 30 000 60 000 26 500
Ultimate elongation, min, % 600 500
4 40 000 70 000 36 000
Tension set, max at 400 %, % 25 25
A
Tear resistance, min, kN/m (lbf/in.) 21 (120) 14 (80)
Except for Class 0 sleeves, the maximum use voltage is based on the following
formula: Puncture resistance, min, kN/m (lbf/in.) 18 (100) 18 (100)
Hardness, Shore A, max 47 47
Maximum use voltage (maximum nominal design voltage) = 0.95 a-c proof-test
voltage − 2000 V Moisture absorption, max, % 1.5 1.5
D 1051
withstand the 60-Hz a-c proof-test voltage (rms value) or the 11.2.3 Foreign material remains in place when the sleeve is
d-c proof-test voltage (average value) specified in Table 1. The folded and stretched with the material surrounding it.
proof test shall be performed in accordance with Section 18. 11.2.4 Color splashes are no longer than 3 mm in any
The voltage shall be applied continuously for 3 min. direction on a surface of the sleeve.
9.2 The sleeve material, when tested between 50-mm (2-in.)
12. Guarantee
disk electrodes with edges rounded to a radius of 6 mm (0.25
12.1 The manufacturer or supplier shall replace, without
in.), shall show a 60-Hz dielectric strength of not less than 14.8
charge to the purchaser, unused sleeves which, at any time
MV/m (375 V rms/mil) of specimen thickness for each
within a period of 9 months from date of initial delivery of
individual test.
shipment to the purchaser or designee, fail to pass the tests in
9.3 The Type II sleeve material shall show no visible effects
this specification. This guarantee will be binding on the
from ozone when tested in accordance with 18.7. Any visible
manufacturer or supplier only if the sleeves have been properly
signs of ozone deterioration of the sleeve material such as
stored and have not been subjected to more than an original
checking, cracking, breaks, pitting, etc., shall be considered as
acceptance test and one retest.
evidence of failure to meet the requirements of Type II sleeves.
12.2 Any acceptance test made by the purchaser’s designee,
In case of dispute, Method A of the ozone resistance test shall
shall be performed within the first 2 months of the guarantee
be the referee test.
period unless otherwise specified.
10. Dimensions and Permissible Variations
NOTE 1—Proper storage means that sleeves are stored right side out, not
10.1 The thicknesses shall fall within the limits specified in
distorted and not stored directly above or in proximity to steam pipes,
radiators, or other sources of artificial heat, or exposed to direct sunlight
Table 3 when measured in accordance with 17.1.
or other sources of ozone. It is desirable that the ambient storage
10.2 The dimensions for each style and size shall fall within
temperature shall not exceed 35°C (95°F).
the limits specified in Table 4 when measured in accordance
with 17.2 in conjunction with Fig. 1 and Fig. 2. Variations in
13. Sampling
sleeve length and wrist dimensions are acceptable when
13.1 Each sleeve in a lot or shipment shall be subject to
required to meet special physical requirements.
inspection and test to meet the requirements of Sections 7, 10,
10.2.1 The taper of sleeves should be uniform as this is
11, 15, and 9.1.
significant because of the advent of dry-form electrical testing.
13.2 An original sample of 1 % of the lot or shipment or not
less than two sleeves, whichever is greater, shall be selected at
11. Workmanship and Finish
random from the lot or shipment for the test requirements of
11.1 Sleeves shall be free on both inner and outer surface of
Sections 8, 9.2 and 9.3. Where a failure occurs in the first
harmful physical irregularities that can be detected by thorough
sample, a second sample of the same quantity shall be selected
test and inspection.
and tested.
11.1.1 Harmful physical irregularities may be defined as any
14. Rejection
feature that disrupts the uniform, smooth surface contour and
represents a potential hazard to the user, such as pinholes, 14.1 Individual sleeves shall be rejected if they fail to meet
cracks, blisters, cuts, conductive imbedded foreign matter,
requirements of Sections 7 and 11, 9.1 and the minimum
creases, pinch marks, voids (entrapped air), prominent ripples, requirement of 10.1.
and prominent mold marks.
14.2 Individual sleeves may be rejected at the option of the
11.2 Nonharmful physical irregularities may be defined as purchaser if they fail to meet the requirements of Sections 15
surface irregularities present on the inner and outer surfaces of
and 10.2.
the rubber sleeve due to imperfections on forms or molds and 14.3 The entire lot or shipment of sleeves shall be rejected
inherent difficulties in the manufacturing process. These irregu-
under any of the following conditions:
larities may appear as mold marks that look like cuts even 14.3.1 If 5 % or more, but not less than two sleeves, in a lot
though they are actually a raised ridge of rubber, indentations,
or shipment fail to meet the requirements of 9.1.
protuberances, or imbedded foreign material that are accept- 14.3.2 If two dielectric breakdowns that do not meet the
able provided that:
requirements of 9.2 occur in the sample.
11.2.1 The indentations, protuberance or m
...