TCNTAC24-2018 PDF English
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| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivery | Name of Chinese Standard | Status |
| T/CNTAC 24-2018 | English | 670 |
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TCNTAC24-2018: Electric heating garments---This is an excerpt. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.), auto-downloaded/delivered in 9 seconds, can be purchased online: https://www.ChineseStandard.net/PDF.aspx/TCNTAC24-2018
ASSOCIATION STANDARD
ICS 61.020
Y 76
Electric Heating Garments
Issued on. NOVEMBER 09, 2018
Implemented on. DECEMBER 09, 2018
Issued by. China National Textile and Apparel Council
Table of Contents
Foreword... 3
1 Scope... 4
2 Normative References... 4
3 Terms and Definitions... 6
4 Requirements... 8
5 Test Methods... 12
6 Inspection Rules... 16
7 Labeling, Packaging, Transportation and Storage... 16
Appendix A (Normative) Model Designation of Electric Heating Elements... 17
Appendix B (Normative) Test Methods of Heating... 18
1 Scope
This Standard specifies the terms and definitions, requirements, test methods, inspection rules,
marking, packaging, transportation and storage of electric heating garments.
This Standard applies to electric heating garments whose surface layer is textile fabrics and
which are heated by flexible resistive heating elements.
Products such as electric heating belts and electric heating knee pads can be implemented by
reference.
This Standard does not apply to garments for infants aged 36 months and below.
2 Normative References
The following documents are essential to the application of this Document. For the dated
documents, only the versions with the dates indicated are applicable to this Document; for the
undated documents, only the latest version (including all the amendments) is applicable to this
Document.
GB/T 1002 Single Phase Plugs and Socket-Outlets for Household and Similar Purposes -
Types, Basic Parameters and Dimensions
GB/T 1003 Three Phases Plugs and Socket-Outlets for Household and Similar Purposes -
Types, Basic Parameters and Dimensions
GB/T 1335 (all parts) Size Designation of Clothes
GB/T 2668 Sizes for Coats and Suits
GB/T 3883.1-2014 Safety of Motor-Operated Hand-Held, Transportable Electric Tools and
Lawn and Garden Tools - Part 1.General Requirements
GB/T 4208 Degrees of Protection Provided by Enclosure (IP Code)
GB 4706.8-2008 Household and Similar Electrical Appliances - Safety - Particular
Requirements for Blankets Pads and Similar Flexible Heating Appliances
GB 4943.1 Information Technology Equipment - Safety - Part 1.General Requirements
GB/T 5169.11-2017 Fire Hazard Testing for Electric and Electronic Products - Part 11.
Glowing/Hot-Wire Based Test Methods - Glow-Wire Flammability Test Method for End-
Products (GWEPT)
GB/T 5169.21-2017 Fire Hazard Testing for Electric and Electronic Products - Part 21.
Abnormal Heat - Ball Pressure Test Method
GB/T 5296.4 Instructions for Use of Products of Consumer Interest - Part 4.Textiles and
Apparel
3 Terms and Definitions
For the purposes of this Document, the following terms and definitions apply.
3.1 Electric heating garments
Garments that use electrical energy to provide heat to the human body.
3.2 Flexible resistive heating elements
The flexible part that uses the heating effect of the current passing through the resistor to
generate heat, including heating conductors, heating fabrics, heating sheets, etc., is referred to
as the electric heating element.
3.3 Heating conductors
A heating element in the form of a wire bundle, including the core body of the wound conductor
and any other conductors and insulators that form a whole.
3.4 Heating fabrics
A fabric heating element with carbon or other conductive material may be provided with a
heating surface.
3.5 Heating sheet
A thin-film electric heating element that is made by laminating a chip resistor and an insulator.
3.6 Electrical parts
The energized parts on the product usually include heating elements, control devices, power
sources (batteries or power adapters), as well as conductors and terminals connecting these
parts.
4 Requirements
4.1 Instructions for use
4.1.1 The instructions for use of garments shall be implemented in accordance with GB/T
5296.4 and GB 31701.Instructions for use shall also include the following.
4.1.2 Garment durability labels shall indicate the production date and safe use period of the
product. For garments with detachable electric heating elements, the garment durability label
shall also indicate.
4.1.3 For the detachable electric heating element on the garment, the following content shall be
marked on it.
4.1.4 The switch shall have an obvious mark; and the temperature adjustment device shall have
a mark of the adjustment direction. The marking used for this purpose shall be understandable
without knowledge of the language or standards.
4.2 Size and specifications of Garment
The quality of fillers shall meet the requirements of relevant laws and regulations, mandatory
standards and relevant standards.
4.3.4 Electrical parts
Electrical parts shall be used reasonably and meet the safety requirements specified in relevant
national standards.
4.3.5 Plugs and sockets used for extra-low voltage circuits and as termination devices for
electric heating elements shall not exchange with the plugs and sockets listed in GB/T 1002,
GB/T 1003, IEC TR 60083, IEC 60906-1 or not exchange with the connectors and appliance
input sockets listed in the Table of GB/T 17465.1-2009.
4.5 Garment quality
4.5.1 The product shall meet the basic safety technical requirements of GB 18401; and the
electric heating garment worn by children shall also meet the requirements of GB 31701.
4.5.2 Electric heating woven down garments shall comply with GB/T 14272; and knitted down
garments shall comply with FZ/T 73053.
4.5.3 Electric heating casual garments shall comply with FZ/T 81007.
5 Test Methods
5.1 General conditions for electrical safety inspection
5.1.1 Unless otherwise specified, the electrical safety test shall be carried out in a place without
forced convection air and at an ambient temperature of (20��5) ��C, and the humidity be kept
between 30% RH ~ 80% RH.
5.1.3 Direct-powered electric heating garments. For specimens provided with a power supply
device, the test shall be conducted with the power supply device at rated voltage and rated
frequency. For specimens not marked with rated voltage or rated frequency, use 220 V, 50 Hz
for the test. For the specimens that are not provided with a power supply device, use an AC or
DC test power supply that meets its rated value for power supply.
5.2 Protection against electric shock
5.2.1 Measure the operating voltage of the electrical parts on the specimen.
5.3 Heating
Carry out the test according to Appendix B.
5.4 Moisture resistance
5.4.1 For non-washable electric heating garment specimens, place them for 24 hours under the
environmental conditions specified in 5.1.1, and then conduct moisture treatment and electric
strength test.
5.5 Structure
5.5.1 Visually check the heating elements, internal wiring and electrical connections on the
specimens.
5.5.2 For electric heating garments equipped with heating conductors composed of multi-strand
wires or internal wiring, the test shall be carried out according to Sub-clause 19.112 of GB
4706.8-2008.
5.5.3 The corrosion resistance shall be tested according to the method in Clause 15 of GB/T
3883.1-2014.
5.5.4 Along the direction in which the bushing may move, apply a force of 20 N on the bushing
used as insulation for 10 s, and observe whether the bushing is displaced and the live parts are
exposed.
5.5.5 Make a mark about 20 mm away from the fixed position of the conductor, or other
appropriate positions; and then apply a pulling force of 10 N in the most unfavorable direction
for a total of 25 times. Do not use explosive force; each time for 1 s; observe damage to
conductor terminals.
5.5.6 Measure clearances and creepage distances. When measuring on air insulation, a force of
20 N shall be applied.
5.6 Heat resistance and flame resistance
5.6.1 For the parts made of elastic plastic material on the specimens, carry out the pressure test
according to clause 24.1.3 of the GB/T 17465.1-2009.Other plastic parts on the specimen are
subjected to ball pressure test according to GB/T 5169.21-2017, and the test temperature is.
5.6.2 For heating elements and internal wiring, conduct the needle flame test according to the
provisions of 30.102 in GB 4706.8-2008; for other parts, conduct the glow wire test according
to GB/T 5169.11-2017, and the test temperature is.
5.7 Electromagnetic radiation
Test according to the method specified in IEC 62233.2005.When the garment is working
normally, the actual measured magnetic induction value shall be directly compared with the
reference value BRL of the magnetic induction intensity at 50 Hz.
5.8 Quality of use
The inspection of quality of use shall be carried out in accordance with the provisions of the
corresponding national standards or industry standards in 4.5.
6 Inspection Rules
6.1 Sampling
The samples for electrical safety inspection of electric heating garments shall be taken in
batches; the number of samples shall be 2 pieces; and the quality of garment shall be carried
out in accordance with the provisions of the corresponding national standards or industry
standards.
6.2 Judgment rules
6.2.1 If the safety of electrical appliances is unqualified, the batch of products will be judged
as unqualified; i
6.2.2 If the safety of electrical appliances and the quality of garments are both qualified, then
this batch of products is qualified.
7 Labeling, Packaging, Transportation and Storage
The marking, packaging, transportation and storage of finished products shall be carried out
according to FZ/T 80002.
......
Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al.
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