This standard specifies the types, technical requirements, test methods and acceptance rules of flame retardant and fire resistant wires and cables, including halogen, halogen-free, low smoke and other characteristics. This standard is applicable to flame retardant and fire resistant wires and cables, including halogen, halogen-free, low smoke. GB/T 19666-2005 General rules for flame retardant and fire resistant wires and cables GB/T19666-2005 Standard download decompression password: www.bzxz.net

ICS29.060.20
National Standard of the People's Republic of China
GB/T196662005
General Rules for Flame Retardant and Fire Resistant Wires and Cables
2005-02-06 Issued
General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China Administration of Standardization of the People's Republic of China
2005-08-01 Implementation
1 Scope
2 Normative Reference Documents
3 Terms and Definitions
4 Models
5 Combustion Characteristics Requirements
6 Technical Requirements
7 Acceptance Rules
Appendix A (Informative Appendix) Examples of Related Wire and Cable Product Standards
Appendix B (Informative Appendix) Appendix) Technical performance of halogen-free low-smoke flame-retardant insulation and sheath...
Appendix C (Informative Appendix) Technical performance of fire-resistant mica tape for wires and cables GB/T196662005
GB/T196662005
Flame-retardant and fire-resistant wires and cables, including halogen, halogen-free, low-smoke and other products, have been produced and used in China for more than ten years and are of great significance to fire safety. However, due to the lack of international standards and national standards, there is confusion in product names, models, technical requirements and test methods, and some are inconsistent with international requirements. This standard is formulated to unify domestic production and use and to meet the needs of international trade and economic and technological exchanges. Considering that flame retardancy and fire resistance requirements can cover almost all wire and cable products, and to achieve this goal, it is generally not necessary to change the structure of the wire and cable, but to change the materials used. Therefore, instead of adopting the method of formulating product standards one by one, this general rule is formulated to stipulate the requirements for flame retardancy and fire resistance and other combustion characteristics that are different from the current general product standards, recommend flame retardant and fire resistant materials that can be used, and add corresponding marks in front of the general product model to distinguish them from ordinary products.
In this standard, the test methods and performance requirements for halogen-free, low smoke, flame retardancy and fire resistance characteristics are all based on the following latest international standards: IEC60331: 1999 Line integrity test of cables or optical cables under flame conditions IEC60332: 2000
Combustion test of cables or optical cables under flame conditions IEC60754: 1997
Test method for gas released when materials taken from cables or optical cables burn IEC61034: 1997 Determination of smoke density of cables or optical cables burning under specific conditions This general rule can be used directly as a product standard. If it is necessary to compile a separate product standard, the relevant content must comply with the provisions of this general rule. Appendix A, Appendix B and Appendix C of this standard are informative appendices. This standard is the first national standard. This standard is proposed by the China Electrical Equipment Industry Association. This standard is under the jurisdiction of the National Wire and Cable Standardization Committee. The responsible drafting unit of this standard: Shanghai Cable Research Institute. Participating drafting units of this standard: Tianjin Fire Science Research Institute of the Ministry of Public Security, East China Architectural Design and Research Institute Co., Ltd., Yangzhou Shuguang Cable Factory, Shanghai Maqiao Cable Factory, Baosheng Technology Innovation Co., Ltd., Jiangsu Shangshan Cable Group Co., Ltd., Hengtong Group Co., Ltd., Far East Cable Factory, Jiangsu Sheng'an Cable Co., Ltd., Foshan Zhongbao Cable Factory, Shanghai Cable Factory Shifen Factory, Huaian Bafang Cable Factory, Wuxi Aibang Polymer Co., Ltd. Drafters of this standard: Xu Yinglin, Dai Dianfeng, Shen Yuxiang, Gu Liyun, Zhou Yan, Tang Chongjian, Wang Songming, Liu Genrong, Wang Chuanbin, Sun Ping, Luo Pinguang, Zhang Zhiqing, Sun Yueming, You Yong.
1 Scope
General rules for flame retardant and fire resistant wires and cables
GB/T196662005
This standard specifies the models, technical requirements, test methods and acceptance rules for flame retardant and fire resistant wires and cables with halogen, halogen-free and low smoke characteristics. This standard applies to flame retardant and fire resistant wires and cables with halogen, halogen-free and low smoke characteristics. 2 Normative references
The clauses in the following documents become the clauses of this standard through reference in this standard. For all dated referenced documents, all subsequent amendments (excluding errata) or revisions are not applicable to this standard. However, the parties to the agreement based on this standard are encouraged to study whether the latest versions of these documents can be used. For all undated referenced documents, the latest versions shall apply to this standard. GB/T17650.2-1998 Test method for gases released during combustion of materials from electric or optical cables Part 2: Determination of acidity of gases by measuring pH and conductivity (idtIEC60754-2:1991) GB/T17651.2-1998 Determination of smoke density of electric or optical cables burning under specific conditions Part 2: Test procedures and requirements (idtIEC61034-2:1997)
GB/T18380.1-2001 Burning test of cables under flame conditions Part 1: Vertical burning test method for single insulated wires or cables (idtIEC60332-1:1993
GB/T18380.2-2001 Burning test of cables under flame conditions Test Part 2: Vertical combustion test method for single copper core insulated thin wire or cable (idtIEC60332-2:1989)
GB/T18380.3-2001 Fire test for cables under flame conditions Part 3: Vertical combustion test method for bundled wires or cables (idtIEC60332-3:1992)
GB/T19216.21-2003 Line integrity test for cables or optical cables under flame conditions Part 21: Test procedures and requirements - Cables with rated voltage of 0.6/1kV and below (idtIEC60331-21:1999) GB/T19216.23-2003 Line integrity test for cables or optical cables under flame conditions Part 23: Test procedures and requirements Procedures and requirements - Data cables (idtIEC60331-23:1999)
IEC60332-3-25:2000 Burning tests on cables or optical cables under flame conditions Part 25: Vertical burning test on bundled wires, cables or optical cables - Category D
3 Terms and definitions
3.1 Flame retardancy
Under specified test conditions, the sample is burned. After the fire source is removed, the spread of the flame on the sample is only within a limited range and self-extinguishing: that is, it has the ability to prevent or delay the occurrence or spread of flames. 3.2 Fire resistance
The ability to continue to operate under specified conditions when burning under specified fire sources and time. , that is, the ability to maintain the integrity of the line. 3.3 Halogenfree
Halogen-free, the combustion products are less corrosive. 3.4 Low smoke
Less smoke is produced during combustion, that is, the light transmittance (visibility) is higher. 4 Model
4.1 Model composition
GB/T196662005
The model of flame-retardant and fire-resistant wires and cables consists of two parts: the product combustion characteristic code and the relevant wire and cable model, as shown in Figure 1. Relevant wire and cable model
Product combustion characteristic code
Model composition of flame-retardant and fire-resistant wires and cables Figure 1
4.2 Combustion characteristic code and sequence
4.2.1 Combustion characteristic code See Table 1.
Table 1 Combustion characteristic codebzxz.net
aZ is a single flame retardant, which is only used for products with halogen-free substrates. If the substrate contains halogen, Z is omitted. bZD is bundle combustion type D, suitable for thinner products with an outer diameter of no more than 12mm. Product name
Flame retardant type A
Flame retardant type B
Flame retardant type C
Flame retardant type D
Fire resistant plus impact
Fire resistant plus water spray
4.2.2 The current product combustion characteristic codes are shown in Table 2. When there are multiple combustion characteristic requirements, the codes are arranged in the order of halogen-free (halogen omitted), low smoke, low toxicity, flame retardant or fire resistant.
Table 2 Current product combustion characteristic codes
Series name
Flame retardant series
Fire resistant series
Note: Other codes are under consideration.
4.3 Wire and cable models
Halogen-free low smoke
Halogen-free low smoke
Flame retardant class A
Flame retardant class B
Flame retardant class C
Flame retardant class D
Halogen-free low smoke flame retardant
Halogen-free low smoke flame retardant class A
Halogen-free low smoke flame retardant class B
Halogen-free low smoke flame retardant class C
Halogen-free low smoke flame retardant class D
Flame retardant class A fire-resistant|| tt||Flame retardant class B fire resistant
Flame retardant class C fire resistant
Flame retardant class D fire resistant
Halogen-free low smoke flame retardant fire resistant
Halogen-free low smoke flame retardant class A fire resistant
Halogen-free low smoke flame retardant class B fire resistant
Halogen-free low smoke flame retardant class C fire resistant
Halogen-free low smoke flame retardant class D fire resistant
Wire and cable models are generally composed of series codes, material codes, usage characteristics, structural characteristics, etc. In this standard, the models of relevant wires and cables are directly used. However, the meanings of the following codes are extended as follows: Y-polyethylene or polyolefin insulation or sheath: YJ-cross-linked polyethylene or cross-linked polyolefin insulation or sheath: 2
3-Polyethylene or polyolefin outer sheath;
4-cross-linked polyethylene or elastomer outer sheath: 6-non-magnetic metal tape armor:
7-non-magnetic metal wire armor.
4.4 Product representation method
Products are represented by "model, specification and this standard number/related product standard number". For relevant product standards, please refer to Appendix A. Example 1: PVC insulated PVC sheathed flame retardant Class A power cable is: ZA-VV Specification (omitted) GB/T19666-2005/GB/T12706.1-2002 Example 2: Cross-linked polyethylene insulated PVC sheathed flame retardant Class B power cable is: ZB-YJV Specification (omitted) GB/T19666-2005/GB/T12706.1-2002 Example 3: Cross-linked polyethylene insulated PVC sheathed flame retardant Class C fire-resistant power cable is : ZCN-YJV Specification (omitted) GB/T19666-2005/GB/T12706.1-2002 Example 4: Cross-linked polyethylene insulated polyolefin sheathed halogen-free low-smoke flame-retardant Class B power cable is: WDZB-YJY Specification (omitted) GB/T19666-2005/GB/T12706.1-2002 Example 5: Polyvinyl chloride insulated flame-retardant Class D fixed wiring wire is: ZD-BV Specification (omitted) GB/T19666-200 5/GB5023.3-1997 Example 6: PVC insulated light PVC sheathed flame retardant Class C cable is: ZC-BVV Specification (omitted) GB/T19666-2005/GB5023.4-1997 Example 7: PVC insulated steel tape armored PVC sheathed flame retardant Class A control cable is: ZA-KVV22 Specification (omitted) GB/T19666-2005/GB9330-1988GB/T196662005|| tt||Example 8: Polyolefin insulated, filled, moisture-proof, polyolefin sheathed, single-layer longitudinally wrapped corrugated steel tape armored, polyolefin outer sheathed, halogen-free, low-smoke, flame-retardant Class B urban communication cable is:
WDZB-HYAT53 Specifications (omitted)
5 Combustion characteristics requirements
5.1 Flame retardant characteristics requirements
GB/T19666-2005/GB/T13849.2-19935.1.1 The flame retardant performance of a single cable must comply with the requirements of Table 3. Table 3 Flame retardant performance requirements of a single cable
Outer diameter of the specimen'D/mm
D≤25
25
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