This quality assurance specification establishes the quality standard for a low fire
hazard (LFH), heat-shrinkable identification sleeving for use in applications where
low fire hazard characteristics are critical. These special requirements are detailed
in Table 7.
HX Low Fire Hazard sleeving meets Rail Standard EN45545-2 requirement set R22/R23
Hazard rating 3. This requirement set and hazard rating allows unlimited use of this
product with any rail car design and operating category in Europe.
The operating temperature for this product is -55° to + 105°
C
C.
This system is an automatic method of identifying items by printing a mark onto a sleeve.
The mark is permanent upon printing. This system is not recommended where strain relief
properties are required.
The marker shall be fabricated from cross linked polyolefin tubing, flattened and then
mounted on a carrier as HX-SCE, HX or supplied as flattened spooled continuous tube as
HXCT.
The marker system comprises specific printers and ribbons. Compliance to this
specification can only be guaranteed if TE Connectivity approved printers and ribbons are
used. This information can be found in TE document 411-121005 ‘Printer Product Ribbon
Matrix Document’.
Unless specified, the tube size for qualification testing is 6.4mm.
Approved Signatories:
This document is electronically reviewed and approved by TE Connectivity.
TE CONNECTIVITY, SWINDON, UK
While TE Connectivity has made every reasonable effort to ensure the accuracy of the information in this specification, TE Connectivity does not guarantee that it is error-
free, nor does TE Connectivity make any other representation, warranty or guarantee that the information is accurate, correct, reliable or current. TE Connectivity reserves
the right to make any adjustments to the information contained herein at any time without notice. TE Connectivity expressly disclaims all implied warranties regarding the
information contained herein, including, but not limited to, any implied warranties of merchantability or fitness for a particular purpose. The dimensions in this document are
for reference purposes only and are subject to change without notice. Specifications are subject to change without notice. Consult TE Connectivity for the latest
dimensions and design specifications.
If this document is printed it becomes uncontrolled.
RW-2072 Issue 13
Page 2 of 27
October 2014
1.
SCOPE
The tests in this specification, as made on HX products, define the nature of a low fire hazard product
for cable identification. Test procedures have been selected based on the ability of that test to provide
key flammability data which can be used by an engineer to give a valid fire risk assessment of an
installation based on actual use.
This qualification standard will establish whether fit form and function of the finished product meets
product design expectations.
The flammability performance criteria has been modelled to reflect the current requirements of the
global rail market. The key performance indicators of flamability, smoke and toxicity have been
selected based on there ability to highlight any changes in performance.
2.
2.1
REQUIREMENTS
Composition, appearance and color
The sleeving shall be fabricated from low fire hazard (LFH), irradiated, thermally stabilized modified
polyolefin compound. It shall be homogeneous and essentially free from flaws, defects, pinholes,
bubbles, seams, cracks or inclusions.
The markers shall be White or Yellow unless otherwise specified.
Dimensions
The product shall be supplied in one of the following formats:
• HX-SCE - as shown in figure 1 and to the dimensions of table 1.
• HXCT - continuous tubing to the dimensions of table 2
• HX - as shown in figure 2 and figure 3 and to the dimensions of table 3
2.2
TE CONNECTIVITY, SWINDON, UK
While TE Connectivity has made every reasonable effort to ensure the accuracy of the information in this specification, TE Connectivity does not guarantee that it is error-
free, nor does TE Connectivity make any other representation, warranty or guarantee that the information is accurate, correct, reliable or current. TE Connectivity reserves
the right to make any adjustments to the information contained herein at any time without notice. TE Connectivity expressly disclaims all implied warranties regarding the
information contained herein, including, but not limited to, any implied warranties of merchantability or fitness for a particular purpose. The dimensions in this document are
for reference purposes only and are subject to change without notice. Specifications are subject to change without notice. Consult TE Connectivity for the latest
dimensions and design specifications.
If this document is printed it becomes uncontrolled.
RW-2072 Issue 13
Page 3 of 27
October 2014
Table 1: HX-SCE Dimensions
Part
Description
Minimum
Supplied Inside
Diameter
mm (inches)
2.4 (0.094)
3.2 (0.126)
4.8 (0.189)
6.4 (0.250)
9.5 (0.375)
12.7 (0.500)
19.0 (0.750)
25.4 (1.0)
38.1 (1.5)
50.8 (2.0)
Maximum
Recovered
Inside Diameter
mm (inches)
1.19 (0.047)
1.6 (0.063)
2.4 (0.094)
3.2 (0.126)
4.8 (0.189)
6.4 (0.250)
9.5 (0.375)
12.7 (0.50)
19.1 (0.75)
25.4 (1.00)
Wall Thickness
after Recovery
mm (inches)
0.50 ± 0.10
(0.020 ± 0.004)
0.50 ± 0.10
(0.020 ± 0.004)
0.51 ± 0.11
(0.020 ± 0.004)
0.65 ± 0.15
(0.026 ± 0.006)
0.65 ± 0.15
(0.026 ± 0.006)
0.65 ± 0.15
(0.026 ± 0.006)
0.75 ± 0.15
(0.030 ± 0.006)
0.90 ± 0.15
(0.035 ± 0.006)
1.00 ± 0.20
(0.039 ± 0.008)
1.00 ± 0.20
(0.039 ± 0.008)
Minimum
Sleeve Width
mm (inches)
4.3 (0.17)
6.5 (0.26)
8.9 (0.32)
11.0 (0.43)
15.7 (0.62)
20.7 (0.81)
30.7 (1.21)
41.1 (1.62)
61.0 (2.40)
80.0 (3.15)
Sleeve
Progression
mm (inches)
12.70 ± 0.63
(0.500 ± 0.025)
12.70 ± 0.63
(0.500 ± 0.025)
12.70 ± 0.76
(0.500 ± 0.030)
16.94 ± 0.89
(0.667 ± 0.035)
25.40 ± 0.89
(1.000 ± 0.035)
29.64 ± 1.02
(1.167 ± 0.040)
42.34 ± 1.02
(1.667 ± 0.040)
50.80 ± 1.02
(2.000 ± 0.040)
72.00 ± 1.02
(2.833 ± 0.040)
101.60 ± 1.02
(2.833 ± 0.040)
Nominal Weight of
single sleeve
(~50mm long)
grams
0.21
0.26
0.37
0.62
0.87
1.13
1.90
3.02
4.96
6.51
HX-SCE-2.4
HX-SCE-3.2
HX-SCE-4.8
HX-SCE-6.4
HX-SCE-9.5
HX-SCE-12.7
HX-SCE-19.0
HX-SCE-25.4
HX-SCE-38.1
HX-SCE-50.8
Table 2: HXCT Dimensions
Minimum
Supplied Inside
Diameter
mm (inches)
2.4 (0.094)
3.2 (0.126)
4.8 (0.189)
6.4 (0.250)
9.5 (0.375)
12.7 (0.500)
19.0 (0.750)
25.4 (1.0)
38.1 (1.5)
Maximum
Recovered
Inside Diameter
mm (inches)
1.19 (0.047)
1.6 (0.063)
2.4 (0.094)
3.2 (0.126)
4.8 (0.189)
6.4 (0.250)
9.5 (0.375)
12.7 (0.50)
19.1 (0.75)
Wall Thickness
After Recovery
mm (inches)
0.50 ± 0.10
(0.020 ± 0.004)
0.50 ± 0.10
(0.020 ± 0.004)
0.51 ± 0.11
(0.020 ± 0.004)
0.65 ± 0.15
(0.026 ± 0.006)
0.65 ± 0.15
(0.026 ± 0.006)
0.65 ± 0.15
(0.026 ± 0.006)
0.75 ± 0.15
(0.030 ± 0.006)
0.90 ± 0.15
(0.035 ± 0.006)
1.00 ± 0.20
(0.039 ± 0.008)
Minimum
Sleeve Width
mm (inches)
4.3 (0.17)
6.5 (0.26)
8.9 (0.32)
11.0 (0.43)
15.7 (0.62)
20.7 (0.81)
30.7 (1.21)
41.1 (1.62)
61.0 (2.40)
Nominal
Weight of single
sleeve (~50mm long)
grams
0.21
0.26
0.37
0.62
0.87
1.13
1.90
3.02
4.96
Part
Description
HXCT-2.4
HXCT-3.2
HXCT-4.8
HXCT-6.4
HXCT-9.5
HXCT-12.7
HXCT-19.0
HXCT-25.4
HXCT-38.1
TE CONNECTIVITY, SWINDON, UK
While TE Connectivity has made every reasonable effort to ensure the accuracy of the information in this specification, TE Connectivity does not guarantee that it is error-
free, nor does TE Connectivity make any other representation, warranty or guarantee that the information is accurate, correct, reliable or current. TE Connectivity reserves
the right to make any adjustments to the information contained herein at any time without notice. TE Connectivity expressly disclaims all implied warranties regarding the
information contained herein, including, but not limited to, any implied warranties of merchantability or fitness for a particular purpose. The dimensions in this document are
for reference purposes only and are subject to change without notice. Specifications are subject to change without notice. Consult TE Connectivity for the latest
dimensions and design specifications.
If this document is printed it becomes uncontrolled.
RW-2072 Issue 13
Page 4 of 27
October 2014
Table 3: HX Dimensions
Minimum
Supplied Inside
Diameter
mm (inches)
3.2 (0.126)
4.8 (0.189)
6.4 (0.250)
9.5 (0.375)
12.7 (0.500)
19.0 (0.750)
25.4 (1.0)
38.1 (1.5)
Maximum
Recovered
Inside Diameter
mm (inches)
1.6 (0.063)
2.4 (0.094)
3.2 (0.126)
4.8 (0.189)
6.4 (0.250)
9.5 (0.375)
12.7 (0.50)
19.1 (0.75)
Wall Thickness
After Recovery
mm (inches)
0.50 ± 0.1
(0.02 ± 0.004)
0.51 ± 0.11
(0.02 ± 0.004)
0.65 ± 0.15
(0.026 ± 0.006)
0.65 ± 0.15
(0.026 ± 0.006)
0.65 ± 0.15
(0.026 ± 0.006)
0.75 ± 0.15
(0.030 ± 0.006)
0.90 ± 0.15
(0.035 ± 0.006)
1.00 ± 0.20
(0.039 ± 0.008)
Minimum
Sleeve Width
mm (inches)
6.5 (0.26)
8.9 (0.32)
11.0 (0.43)
15.7 (0.62)
20.7 (0.81)
30.7 (1.21)
41.1 (1.62)
61.0 (2.40)
Sleeve
Progression
mm (inches)
12.7 ± 0.5
(0.50 ± 0.02)
12.7 ± 0.5
(0.50 ± 0.02)
25.4 ± 0.5
(1.00 ± 0.02)
25.4 ± 0.5
(1.00 ± 0.02)
50.8 ± 0.5
(2.00 ± 0.02)
50.8 ± 0.5
(2.00 ± 0.02)
50.8 ± 0.5
(2.00 ± 0.02)
127 ± 0.5
(5.00 ± 0.02)
Nominal Weight
of single sleeve
(~50mm long)
grams
0.26
0.37
0.62
0.87
1.13
1.90
3.02
4.96
Part
Description
HX032
HX048
HX064
HX095
HX127
HX190
HX254
HX381
TE CONNECTIVITY, SWINDON, UK
While TE Connectivity has made every reasonable effort to ensure the accuracy of the information in this specification, TE Connectivity does not guarantee that it is error-
free, nor does TE Connectivity make any other representation, warranty or guarantee that the information is accurate, correct, reliable or current. TE Connectivity reserves
the right to make any adjustments to the information contained herein at any time without notice. TE Connectivity expressly disclaims all implied warranties regarding the
information contained herein, including, but not limited to, any implied warranties of merchantability or fitness for a particular purpose. The dimensions in this document are
for reference purposes only and are subject to change without notice. Specifications are subject to change without notice. Consult TE Connectivity for the latest
dimensions and design specifications.
If this document is printed it becomes uncontrolled.
RW-2072 Issue 13
Page 5 of 27
October 2014
Figure 1. HX-SCE format
80.52 ± 1.52
(3.170 ± 0.060)
50.00 MINIMUM
(1.970)
4.83 ± 0.25
(0.190 ± 0.010)
TYPICALlY
3.05 (0.120)
SLEEVE
WIDTH
TYPICALLY
12.70
(0.500)
38.10 ± 0.25
(1.500 ± 0.010)
SLEEVE
PROGRESSION
DIAMETER
4.01 ± 0.13
(0.158 ± 0.005)
CARRIER
Dimensions in mm (inch).
TE CONNECTIVITY, SWINDON, UK
While TE Connectivity has made every reasonable effort to ensure the accuracy of the information in this specification, TE Connectivity does not guarantee that it is error-
free, nor does TE Connectivity make any other representation, warranty or guarantee that the information is accurate, correct, reliable or current. TE Connectivity reserves
the right to make any adjustments to the information contained herein at any time without notice. TE Connectivity expressly disclaims all implied warranties regarding the
information contained herein, including, but not limited to, any implied warranties of merchantability or fitness for a particular purpose. The dimensions in this document are
for reference purposes only and are subject to change without notice. Specifications are subject to change without notice. Consult TE Connectivity for the latest
dimensions and design specifications.
If this document is printed it becomes uncontrolled.
微控制器 MCU
京公网安备 11010802033920号
Copyright © 2005-2026 EEWORLD.com.cn, Inc. All rights reserved
电子工程世界
