RW 2053 Revision 2
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RW 2053 Revision 2
RNF-3000 SLEEVING
SCOPE
This Quality Assurance Specification establishes the quality standard for two types of heat-
shrinkable, electrically-insulating, semi-flexible, flame-retarded polyolefin sleeving.
Type 1: Flame retarded and coloured
Type 2: Clear
Approved Signatories*
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RW 2053 Revision 2
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1.
REVISION HISTORY
Revision
Number
0
1
2
Change Request
Formerly RK 6150 Revision 3
CRF T1020
CR98-DM-0027
Via DMTEC
28 August 1997
16 February 1998
27 February 2014
C. Woosnam
L. Abrams
C. Diss
Date
Incorporated By
2.
2.1
REQUIREMENTS
Composition, Appearance and Colour
The sleeving shall be homogeneous and free from pinholes, bubbles, cracks and inclusions. The
colour shall be as specified in the contract or order.
2.2
Dimensions
Size
Inside Diameter as
supplied (min)
mm
1.5
3.0
6.0
9.0
12.0
18.0
24.0
39.0
Inside Diameter after
recovery (max)
mm
0.5
1.0
2.0
3.0
4.0
6.0
8.0
13.0
Wall Thickness after
recovery
mm
0.45 ± 0.10
0.55 ± 0.10
0.65 ± 0.10
0.75 ± 0.12
0.75 ± 0.12
0.85 ± 0.12
1.00 ± 0.18
1.15 ± 0.20
1.5/0.5
3/1
6/2
9/3
12/4
18/6
24/8
39/13
Sleeving of special expanded or recovered dimensions may be supplied as specified in the
contract or order.
2.3
Test Requirements
The test requirements shall be as specified in Table 1.
3.
3.1
TEST METHODS
Unless otherwise specified, tests shall be carried out on specimens of sleeving recovered by
conditioning in a fan assisted air circulating oven at 200 ± 5°C for 4 ± 1 minutes and allowed to
cool in air to ambient temperature. No pre-conditioning period is required prior to testing.
Unless otherwise specified, all tests shall be made under standard ambient conditions according
to IEC Publication 212. In cases of dispute the tests shall be carried out at a temperature of 23 ±
2°C and at 50 ± 5% relative humidity.
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3.
3.2
TEST METHODS (Cont’d)
Dimensions and Longitudinal Change
The test method shall be as specified in ASTM D2671.
The length and inside diameter of three 150mm long specimens of expanded sleeving shall be
measured. The specimens shall be recovered in a fan assisted air circulating oven and the length
and inside diameter of each shall be measured. The longitudinal change shall be expressed as a
percentage of the original length. The minimum and maximum recovered wall thickness shall
be determined.
3.3
Tensile Strength and Ultimate Elongation
The test method shall be as specified in ISO 37.
For sleeving of recovered bore greater than 6mm, five Type 2 dumb-bell specimens shall be
tested. For sleeving of recovered bore less than or equal to 6mm, five tubular specimens 125mm
long shall be tested. Initial jaw separation shall be 50 mm and rate of jaw separation shall be
100 ± 10mm per minute.
The test shall be carried out at a temperature of 23 ± 2°C
3.4
Secant Modulus
The test method shall be as specified in Method A of ASTM D882.
For sleeving of recovered bore greater than 6mm, five strip specimens 150mm long shall be
tested. For sleeving of recovered bore less than or equal to 6mm five tubular specimens 150mm
long shall be tested. Initial jaw separation shall be 100mm and rate of jaw separation 10 ± 1mm
per minute.
The test shall be carried out at a temperature of 23 ± 2°C.
3.5
Specific Gravity
The test method shall be as specified in Method A of ISO 1183.
3.6
Heat Shock
The test method shall be as specified in ASTM D2671.
The specimens shall be conditioned in a fan assisted air circulating oven as specified in
Table 1.
3.7
Heat Ageing
The test method shall be as specified in ISO 188.
Five tensile test specimens prepared as in Clause 3.3 shall be conditioned in a fan assisted air
circulating oven as specified in Table 1. After conditioning the specimens shall be removed
from the oven, allowed to cool naturally to room temperature and tested for Ultimate Elongation
according to clause 3.3.
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TEST METHODS (Cont’d)
3.8
Low Temperature Flexibility
The test method shall be as specified in Procedure C of ASTM D2671.
For sleeving of recovered bore 6mm or less, apply the test to whole sections of recovered
sleeving. For sleeving of recovered bore greater than 6mm, apply the test to strips 6mm wide,
cut from the recovered sleeving, with their lengths parallel to the extruded axis.
Mandrel diameter shall be 15 x specimen thickness ± 10%. For tubular specimens the thickness
is the outside diameter.
The specimens and mandrel shall be conditioned as specified in Table 1.
3.9
Flammability
The test method shall be as specified in ASTM D876.
3.10
Electric Strength
The test method shall be as specified in IEC 243 (Short time test).
3.11
Copper Contact Corrosion
The test method shall be as specified in ASTM D2671.
The specimens shall be conditioned in a fan assisted air circulating oven as specified in
Table 1, allowed to cool naturally to room temperature and tested for Ultimate Elongation
according to Clause 3.3.
3.12
Copper Mirror Corrosion
The test method shall be as specified in ASTM D2671.
The specimens shall be conditioned as specified in Table 1.
3.13
Water Absorption
The test method shall be as specified in Method 1 of ISO 62.
For sleeving of recovered bore greater than 8mm, three disc specimens of diameter 25 ± 1mm
shall be cut from the sleeving. For sleeving of recovered bore less than or equal to 8mm, three
tubular specimens 50mm long shall be cut from the sleeving.
3.14
Fluid Resistance
The test method shall be as specified in ISO 1817.
Five tensile test specimens prepared as in Clause 3.3. shall be completely immersed in each of
the fluids for the times and temperatures specified in Table 1. The volume of the fluid shall not
be less than 20 times that of the specimen. After immersion, lightly wipe the specimens and
allow to air dry at 23 ± 2°C for 1h ± 15m. The Tensile Strength and Ultimate Elongation of
each specimen shall be tested according to Clause 3.3. The test shall be repeated on the
remaining specified fluids.
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TEST METHODS (Cont’d)
3.15
Fungus Resistance
The test method shall be as specified in ISO 846.
The specimens shall be conditioned for 56 days, and tested for Tensile Strength and Ultimate
Elongation according to Clause 3.3.
4.
RELATED STANDARDS & issue
ASTM D876: 1995
ASTM D882: 1991
ASTM D2671: 1995
IEC 212: 1971
IEC 243-1: 1988
ISO 37: 1994
ISO 62: 1980
ISO 188: 1982
ISO 846: 1997
ISO 1183: 1987
ISO 1817: 1985
Standard Test Methods for Nonrigid Vinyl Chloride Polymer Tubing
Used for Electrical Insulation
Standard Test Methods for Tensile Properties of Thin Plastic Sheeting
Standard Test Methods for Heat-Shrinkable Tubing for Electrical Use
Standard Conditions for Use Prior to and During Testing of Solid
Electrical Insulating Materials
Methods of Test for Electric Strength of Solid Insulating Materials Part
1 Tests at Power Frequencies
Rubber, vulcanized or thermoplastic - Determination of Tensile Stress-
Strain Properties
Determination of Water Absorption
Rubber, vulcanized - Accelerated Ageing or Heat Resistance Tests.
Plastics - Evaluation of the action of microorganisms.
Methods for determining the density and relative density of non-cellular
plastics
Rubber, vulcanized - Determination of the effect of liquids
Subsequent amendments to, or revisions of, any of the above publications apply to this
standard only when incorporated in it by updating or revision.
5.
SAMPLING
Tests shall be carried out on a sample taken at random from each batch of finished sleeving.
A batch of sleeving is defined as that quantity of sleeving extruded at any one time.
Testing frequency shall be Production Routine, 10th Batch or Qualification. Production Routine
tests consisting of Visual Examination, Dimensions and Longitudinal Change shall be carried
out on every batch of sleeving. 10th batch tests shall consist of Tensile Strength, Ultimate
Elongation, Secant Modulus at 2% Strain and Specific Gravity.
Qualification tests shall be carried out to the requirements of the Design Authority.
6.
PACKAGING
Packaging shall be in accordance with good commercial practice. Each package shall bear an
identification label showing material quantity, description, size, colour and batch number.
Additional information shall be supplied as specified in the contract or order.
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