GB/T 3956-1997
Replaced
GB/T 17651.1-2021
Active
National standards
GB/T 17651.1-2021 Measurement of smoke density of cables or optical fiber cables burning under defined conditions—Part 1:Test apparatus
GB/T 17651.1-2021 Measurement of smoke density of cables or optical fiber cables burning under defined conditions—Part 1:Test apparatus
Price:
$ 54
Basic Information
Standard Code:
GB/T 17651.1-2021
Standard Type:
National standards
Standard Status:
Active
is_force_gb:
no
CCS Name:
Cables and their accessories
ICS Name:
Comprehensive overview of wires and cables
Publish Date:
2021-04-30
Implement Date:
2021-11-01
Pages:
14 pages
Scope
This document describes the details of the test device used to measure the smoke released by cables or optical cables under specific conditions (for example, when some cables or optical cables are burned horizontally). Under flaming or non-flaming combustion conditions, the light transmittance (It) can be used as a means of comparing different cables or determining whether they meet specific requirements.
Note: In this document, "cables" refer to all insulated metal conductor cables used to transmit electrical energy or signals.
Development Information
Same series standard
Replace the following standards
Referenced Standards
IEC 60695-4
ISO/IEC 13943:2000
Adopt standards
IEC 61034-1:2019
Related Standards
GB/T 17650.1-1998
Replaced
GB/T 17650.1-1998 Test on gases evolved during combustion of materials from cables Part 1:Determination of the amount of halogen acid gas
GB/T 17650.2-1998
Replaced
GB/T 17650.2-1998 Test on gases evolved during combustion of materials from cables Part 2:Determination of degree of acidity of gases by measuring pH and conductivity
GB/T 17651.1-1998
Replaced
GB/T 17651.1-1998 Measurement of smoke density of cables burning under defined conditions Part 1:Test apparatus
GB/T 17651.2-1998
Replaced
GB/T 17651.2-1998 Measurement of smoke density of cables burning under defined conditions Part 2:Test procedure and requirements
GB/T 4074.1-1999
Replaced