RNF-100-3/64-BK-SP (5052844058) - Tyco Electronics

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Tyco Electronics Corporation

300 Constitutional Drive

Menlo Park, CA 94025 USA

Specification

This Issue:

Date:

Replaces:

RT-350

Issue 17

April 9, 2004

Issue 16

THERMOFIT® RNF-100 TUBING

Polyolefin, Flexible, Heat-Shrinkable

1. SCOPE

This specification covers the requirements for two types of flexible electrical insulating, extruded tubing

whose diameter will reduce to a predetermined size upon the application of heat in excess of 121°C (250°F).

1.1 TYPE 1

Type 1 tubing shall be flame-retardant and shall be black, white, red, yellow, or blue unless otherwise

specified.

1.2 TYPE 2

Type 2 tubing shall not be flame-retardant and shall be clear.

2. APPLICABLE DOCUMENTS

This specification takes precedence over documents referenced herein. Unless otherwise specified, the latest

issue of referenced documents applies. The following documents form a part of this specification to the

extent specified herein.

2.1 GOVERNMENT-FURNISHED DOCUMENTS

Military

ASTM D 910 Gasoline, Aviation, Grades 80/87, 100, and 115/145

MIL-PRF-5606 Hydraulic Fluid, Petroleum Base, Aircraft, Missile and Ordnance

MIL-T-83133 Turbine Fuel, Aviation, Grade JP-8

MIL-STD-104 Limits for Electrical Insulation Color

2.2 OTHER PUBLICATIONS

American Society for Testing and Materials (ASTM)

D 910 Standard Spec. for Aviation Gasolines

D 2671 Standard Methods of Testing Heat-Shrinkable Tubing for Electrical Use

(Copies of ASTM publications may be obtained from the American Society for Testing and Materials, 1916

Race Street, Philadelphia, Pennsylvania 19103.)

International Organization for Standardization (ISO)

ISO 846 Plastics – Evaluation of the action of Microorganisms

(Copies of ISO publications may be obtained from the International Organization for Standardization, 1, rue

de Varembé, CH-1211 Geneva 20, Switzerland or via the ISO website at

http://www.iso.ch/iso/en/ISOOnline.frontpage)

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3. REQUIREMENTS

3.1 MATERIALS

The tubing shall be fabricated from thermally stabilized, modified polyolefin and shall be crosslinked by

irradiation. It shall be homogeneous and essentially free from flaws, defects, pinholes, bubbles, seams,

cracks, and inclusions.

3.2 PROPERTIES

The tubing shall meet the requirements of Table 3.

4. QUALITY ASSURANCE PROVISIONS

4.1 CLASSIFICATION OF TESTS

4.1.1 Qualification Tests

Qualification tests are those performed on tubing submitted for qualification as a satisfactory product and

shall consist of all tests listed in this specification.

4.1.2 Acceptance Tests

Acceptance tests are those performed on tubing submitted for acceptance under contract. Acceptance tests

shall be: dimensions, longitudinal change, tensile strength, ultimate elongation, secant modulus, flammability

(Type 1 only), and heat shock. Statistical process control data may be used to demonstrate conformance for

dimensions.

4.2 SAMPLING INSTRUCTIONS

4.2.1 Qualification Test Samples

Qualification test samples shall consist of 50 feet (15 m) of black, white and clear tubing. Qualification of

black and white shall qualify all colors. Clear shall be qualified separately. Qualification of any size within

each size range specified below shall qualify all sizes within that size range.

Range of Sizes

3/64 through 1/4

3/8 through 1

1-1/4 through 5

4.2.2 Acceptance Test Sample

Acceptance test samples shall consist of not less than 16 feet (5 m) of tubing selected at random from each

compound batch or the first sleeving production lot of the batch compound. Physical property tests

performed at this time qualify subsequent sleeving lots produced from the same compound batch.

4.3 TEST PROCEDURES

Condition test specimens and measurement gauges at 23 ± 3°C (73 ± 5°F) and ambient relative humidity

prior to all testing, whether before or after heat shrinking. Unless otherwise specified, perform tests on

specimens which have been fully recovered by conditioning for 3 minutes in a 200 ± 5°C (392 ± 9°F) oven.

Use mechanical convection type ovens in which air passes the specimens at a velocity of 100 to 200 feet (30

to 60 m) per minute.

SPECIFICATION RT-350 ISSUE 17 Page 3

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4.3.1 Dimensions and Longitudinal Change

Measure three 6-inch (150 mm) specimens of tubing, as supplied, for length ± 1/32 inch

(± 1 mm), and inside diameter in accordance with ASTM D 2671. Condition the specimens for 3 minutes in

a 200 ± 5°C (392 ± 9°F) oven, cool to 23 ± 3°C (73 ± 5°F) and then remeasure. Prior to and after

conditioning, the dimensions of the tubing shall be in accordance with Table 1 and the longitudinal change

shall be in accordance with Table 3. Calculate the longitudinal change as follows:

C = L1 - L0

L0 x 100

Where: C = Longitudinal Change [Percent]

0 = Length Before Conditioning [Inches (mm)]

1 = Length After Conditioning [Inches (mm)]

4.3.2 Tensile Strength and Ultimate Elongation

Determine the tensile strength and ultimate elongation of the tubing in accordance with ASTM D 2671 using

1-inch (25-mm) bench marks, a 1-inch (25-mm) initial jaw separation, and jaw separation speed of 20 ± 2

inches (500 ± 50 mm) per minute.

4.4 REJECTION AND RETEST

Failure of any sample of tubing to conform to any one of the requirements of this specification shall be cause

for rejection of the lot represented. Tubing which has been rejected may be replaced or reworked to correct

the defects and resubmitted for acceptance. Before resubmitting, full particulars concerning previous

rejection and action taken to correct the defects shall be furnished to the inspector.

5. PREPARATION FOR DELIVERY

5.1 FORM

The tubing shall be supplied on spools or in lengths of 48 +1, -0 inches (1220 +25.4, -0 mm) unless

otherwise specified.

5.2 PACKAGING

Packaging shall be in accordance with good commercial practice.

5.3 MARKING

Each container of tubing shall be permanently and legibly marked with the size, quantity, manufacturer's

identification, specification number, and lot number.

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TABLE 1

Tubing Dimensions

As Supplied As Recovered

Inside Diameter Inside Diameter Wall Thickness

Size Minimum Maximum Minimum Maximum Nominal

in.

mm. in. mm. in. mm. in. mm. in. mm.

3/64 .046 1.17 .023 0.58 .013 0.33 .019 0.48 .016 0.40

1/16 .063 1.60 .031 0.79 .014 0.35 .020 0.50 .017 0.43

3/32 .093 2.36 .046 1.17 .017 0.43 .023 0.58 .020 0.50

1/8 .125 3.17 .062 1.57 .017 0.43 .023 0.58 .020 0.50

3/16 .187 4.74 .093 2.36 .017 0.43 .023 0.58 .020 0.50

1/4 .250 6.35 .125 3.17 .022 0.56 .028 0.71 .025 0.64

3/8 .375 9.50 .187 4.74 .022 0.56 .028 0.71 .025 0.64

1/2 .500 12.70 .250 6.35 .022 0.56 .028 0.71 .025 0.64

3/4 .750 19.05 .375 9.50 .027 0.69 .033 0.84 .030 0.76

1 1.000 25.40 .500 12.70 .030 0.76 .040 1.01 .035 0.88

1-1/4 1.250 31.75 .625 14.30 .034 0.86 .046 1.17 .040 1.01

1-1/2 1.500 38.10 .750 19.05 .034 0.86 .046 1.17 .040 1.01

2 2.000 50.80 1.000 25.40 .038 0.96 .052 1.32 .045 1.14

3 3.000 76.20 1.500 38.10 .042 1.06 .058 1.47 .050 1.27

4 4.000 101.60 2.000 50.80 .046 1.16 .064 1.63 .055 1.39

5 5.000 127.00 2.500 63.50 .051 1.30 .069 1.75 .060 1.52

TABLE 2

Mandrel Dimensions for Bend Testing

Tubing Size Mandrel Diameter

in.

mm.

3/64 to 1/4 inclusive 5/16 7.9

3/8 to 5 inclusive 3/8 9.5

SPECIFICATION RT-350 ISSUE 17 Page 5

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TABLE 3

Requirements

REQUIREMENT

PROPERTY UNIT TYPE 1 TYPE 2 TEST METHOD

PHYSICAL

Dimensions

Inches (mm)

In accordance

with Table 1

In accordance

with Table 1

Section 4.3.1

ASTM D 2671

Longitudinal Change Percent +0, -5 +0, -5

Tensile Strength psi (MPa) 1500 minimum

(10.3)

1500 minimum

(10.3)

Section 4.3.2

ASTM D 2671

Ultimate Elongation Percent 200 minimum 200 minimum

Secant Modulus (Expanded) psi (MPa) 2.5 x 104

maximum

(172)

2.5 x 104

maximum

(172)

ASTM D 2671

Specific Gravity --- 1.35 maximum 1.0 maximum ASTM D 2671

Low Temperature Flexibility

4 hours at -55 ± 1°C (-67 ± 2°F)

--- No cracking No cracking Table 2

ASTM D 2671

Procedure C

Heat Shock

4 hours at 250 ± 3°C (482 ± 5°F)

--- No dripping,

flowing or

cracking

No dripping,

flowing or

cracking

Table 2

ASTM D 2671

Heat Resistance

168 hours at 175 ± 2°C (347 ± 4°F)

Followed by test for:

--- --- --- ASTM D 2671

Ultimate Elongation Percent 150 minimum 150 minimum

Color --- MIL-STD-104 --- MIL-STD-104

Color Stability

48 hours at 175 ± 2°C (347 ± 4°F)

--- MIL-STD-104 --- ASTM D 2671

ELECTRICAL

Dielectric Strength

Volts/mil

(volts/mm)

500 minimum

(19,680)

500 minimum

(19,680)

NOTE 1

ASTM D 2671

Volume Resistivity ohm-cm 1014 minimum 1016 minimum ASTM D 2671

CHEMICAL

Copper Mirror Corrosion 16 hours at 175 ±

2°C (347 ± 4°F)

No removal of

copper

No removal of

copper

ASTM D 2671

Procedure A

Copper Contact Corrosion

168 hours at 160 ± 2°C (320 ± 4°F)

--- No pitting or

blackening of

copper

No pitting or

blackening of

copper

ASTM D 2671

Procedure B

Copper Stability

168 hours at 160 ± 2°C (320 ± 4°F)

Followed by test for:

--- No brittleness,

glazing,

cracking, or

severe

discoloration of

tubing

No brittleness,

glazing,

cracking, or

severe

discoloration of

tubing

Ultimate Elongation Percent 200 minimum 200 minimum

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TABLE 3

Requirements

(continued)

PROPERTY UNIT TYPE 1 TYPE 2 TEST METHOD

CHEMICAL (continued)

Flammability

---

Self-

extinguishing

within

1 minute, 25%

maximum flag

burn

---

ASTM D 2671

Procedure B

Water Absorption

24 hours at 23°C (73°F)

Percent 0.5 maximum 0.2 maximum ASTM D 2671

Fluid Resistance

24 hours at 23°C (73°F) in:

JP-8 Fuel (MIL-T-83133)

Skydrol* 500

Hydraulic Fluid (MIL-PRF-5606)

Aviation Gasoline (100)

(ASTM D 910)

Water

Followed by tests for:

--- --- --- ASTM D 2671

Dielectric Strength Volts/mil

(volts/mm)

400 minimum

(15,760)

400 minimum

(15, 760)

Tensile Strength psi (MPa) 1000 minimum

(6.9)

1000 minimum

(6.9)

Fungus Resistance

Followed by tests for:

Tensile Strength

Ultimate Elongation

Dielectric Strength

psi (Mpa)

percent

Volts per mil

(volts per mm)

1500 minimum

(10.3)

200 minimum

500 minimum

(19,680)

1500 minimum

(10.3)

200 minimum

500 minimum

(19,680)

ISO 846

Method B

Section 4.3.2

ASTM D 2671

*Trademark of the Monsanto Company

NOTE 1: Recover the specimens on the metal mandrels for 10 minutes, minimum, at 175 ± 3°C (347 ± 5°F) or until the

tubing is completely shrunk on the mandrels.