GB/T 19666-2019 English PDF (GBT19666-2019)

Delivery: 3 seconds. Download true-PDF + Invoice.
Get QUOTATION in 1-minute: Click GB/T 19666-2019
Historical versions: GB/T 19666-2019
Preview True-PDF (Reload/Scroll if blank)

GB/T 19666-2019: General rules for flame retardant and fire resistant electric wires and cables or optical fiber cables
GB/T 19666-2019
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 29.060.20
K 13
Replacing GB/T 19666-2005
General Rules for Flame Retardant and Fire Resistant
Electric Wires and Cables or Optical Fiber Cables
ISSUED ON: DECEMBER 10, 2019
IMPLEMENTED ON: JULY 01, 2020
Issued by: State Administration for Market Regulation;
Standardization Administration of the People’s Republic of China.
Table of Contents
Foreword ... 3
1 Scope ... 5
2 Normative References ... 5
3 Terms and Definitions ... 6
4 General ... 7
5 Product Model ... 7
5.1 Code and combination of combustion characteristics ... 7
5.2 Composition of product model ... 9
5.3 Expression of product ... 10
6 Requirements for Combustion Properties ... 10
6.1 Flame retardance ... 10
6.2 Fire resistance ... 11
6.3 Halogen free performance ... 12
6.4 Low smoke performance ... 13
6.5 Low toxicity performance ... 13
7 Technical Requirements ... 14
7.1 Flame-retardant wire and cable or optical fiber cable series ... 14
7.2 Fire-resistant wire and cable or optical fiber cable series ... 15
8 Acceptance Rules ... 16
Appendix A (Normative) Water Spray Test Method ... 17
Appendix B (Normative) Water Spray Test Method ... 19
Appendix C (Normative) Toxicity Indicator Test Method ... 21
Bibliography ... 27
General Rules for Flame Retardant and Fire Resistant
Electric Wires and Cables or Optical Fiber Cables
1 Scope
This Standard specifies the code, technical requirements, test methods and acceptance rules for
the combustion characteristics of flame-retardant and fire-resistant wires, cables or optical fiber
cables, including halogen-free, low-smoke, low-toxicity, flame-retardant and fire-resistant
combustion characteristics.
This Standard applies to halogen-containing, halogen-free, low-smoke, low-toxic flame-
retardant and fire-resistant wire and cable or optical fiber cable products.
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 4208-2017 Degrees of Protection Provided by Enclosure (IP Code)
GB/T 17650.1 Test on Gases Evolved During Combustion of Materials from Cables or
Optical Fiber Cables-Part 1: Determination of the Halogen Acid Gas Content
GB/T 17650.2 Test on Gases Evolved During Combustion of Materials from Cables or
Optical Fiber Cables - Part 2: Determination of Acidity (by pH Measurement) and
Conductivity
GB/T 17651.2 Measurement of Smoke Density of Cables or Optical Fiber Cables Burning
under Defined Conditions - Part 2: Test Procedure and Requirements
GB/T 18380.12 Test on Electric and Optical Fiber Cables under Fire Conditions - Part 12:
Test for Vertical Flame Propagation for a Single Insulated Wire or Cable - Procedure for
1kW Pre-Mixed Flame
GB/T 18380.13 Tests on Electric and Optical Fiber Cables under Fire Conditions - Part 13:
Test for Vertical Flame Propagation for a Single Insulated Wire or Cable - Procedure for
Determination of Flaming Droplets/Particles
GB/T 18380.22 Tests on Electric and Optical Fiber Cables under Fire Conditions - Part 22:
Test for Vertical Flame Propagation for a Single Small Insulated Wire or Cable - Procedure
for Diffusion Flame
GB/T 18380.33 Tests on Electric and Optical Fiber Cables under Fire Conditions - Part 33:
Test for Vertical Flame Spread of Vertically-Mounted Bunched Wires or Cables - Category
GB/T 18380.34 Tests on Electric and Optical Fiber Cables under Fire Conditions - Part 34:
Test for Vertical Flame Spread of Vertically-Mounted Bunched Wires or Cables - Category
GB/T 18380.35 Tests on Electric and Optical Fiber Cables under Fire Conditions - Part 35:
Test for Vertical Flame Spread of Vertically-Mounted Bunched Wires or Cables - Category
GB/T 18380.36 Tests on Electric and Optical Fibre Cables under Fire Conditions - Part 36:
Test for Vertical Flame Spread of Vertically-Mounted Bunched Wires or Cables - Category
GB/T 19216.21 Tests for Electric Cables under Fire Conditions - Circuit Integrity - Part
21: Procedures and Requirements - Cables of Rated Voltage up to and including 0.6/1.0kv
GB/T 19216.23 Tests for Electric Cables under Fire Conditions - Circuit Integrity - Part
23: Procedures and Requirements - Electric Data Cables
GB/T 19216.25 Tests for Electric Cables under Fire Conditions - Circuit Integrity - Part
25: Procedures and Requirements - Optical Fiber Cables
IEC 60331-1 Tests for Electric Cables under Fire Conditions – Circuit Integrity – Part 1:
Test Method for Fire with Shock at a Temperature of at least 830°C for Cables of Rated
Voltage up to and including 0.6/1.0kV and with an Overall Diameter Exceeding 20mm
IEC 60331-2 Tests for Electric Cables under Fire Conditions – Circuit Integrity – Part 2:
Test Method for Fire with Shock at a Temperature of at least 830°C for Cables of Rated
Voltage up to and including 0.6/1.0kV and with an Overall Diameter not Exceeding 20mm
IEC 60684-2:2011 Flexible Insulting Sleeving – Part 2: Methods of Test
IEC 60754-3 Test on Gases Evolved during Combustion of Materials from Cables – Part
3: Measurement of Low Level of Halogen Content by Ion Chromatography
3 Terms and Definitions
For the purposes of this Document, the following terms and definitions apply.
3.1 Flame retardance
The characteristics that, when the sample is burned under specified conditions, the spread of
flame on the sample is only within a limited range after the ignition source is removed, and it
has the capability of preventing or delaying the occurrence or spread of flame.
3.2 Fire resistance
The characteristic that a specimen can continue to operate under specified conditions when it
is burned under specified ignition source and time.
3.3 Halogen free
The characteristic that the halogen (fluorine, chlorine, bromine, iodine) content of the gas
released during combustion is all less than or equal to 1.0 mg/g.
3.4 Low smoke
The characteristic that the concentration of smoke produced by burning does not reduce
visibility (light transmittance) to the extent that it affects escape.
3.5 Low toxicity
The characteristic that the toxic effect and concentration of the toxic fumes produced during
combustion shall not cause the living organisms to die within 30min.
4 General
The combustion characteristics of flame-retardant and fire-resistant wire and cable or optical
fiber cable products shall comply with the requirements of this Standard; and other properties
other than combustion characteristics shall comply with the requirements of the corresponding
product standards.
Wire and cable or optical fiber cable products may reduce their original basic characteristics
while achieving their flame retardance and/or fire resistance purposes, or cause some original
test methods to be inapplicable. All parties using this Standard shall discuss or negotiate a
suitable solution to ensure that the wire and cable or optical fiber cable products achieve the
purpose of flame retardance and/or fire resistance while ensuring safety and reliability during
use. On the premise of without reducing the safety and reliability during use, the corresponding
technical indicators or test methods can be adjusted appropriately.
5 Product Model
5.1 Code and combination of combustion characteristics
5.1.1 Co...