GB/T 7424.5-2012Optical fibre cables -- Part 5: Sectional specification -- Micro duct optical fibre cables and fibre units for installation by blowing (English PDF)

1 Scope

This section GB/T 7424 provisions of the air blown installation techniques for micro cable (hereinafter referred to as micro-cable) and micro-fiber unit

Claim.

Micro-miniature cables and fiber units for indoor or outdoor use blowing process of this section applies to communications transmission network installation.

2 Normative references

The following documents for the application of this document is essential. For dated references, only the dated edition applies to this article

Member. For undated references, the latest edition (including any amendments) applies to this document.

GB/T 6995.2-2008 wire and cable identification methods - Part 2. Standard colors

Basic optical cable test method. GB/T 7424.2-2008 cable Part 2 Generic specification (IEC 60794-1-2.2003, MOD)

GB/T 7424.3-2003 cable Part 3. Sectional specification - Outdoor cables (IEC 60794-3.2001, MOD)

GB/T 9771 (all parts) with a single-mode optical fiber communication

GB/T 15972.20-2008 fiber test methods - Part 20. Methods of measurement of the size parameters and test procedures for fiber

Geometric parameters (IEC 60793-1-20.2001, MOD)

GB/T 15972.40-2008 fiber test methods - Part 40. Measuring methods for transmission and optical characteristics and testing

Program attenuation (IEC 60793-1-40.2001, MOD)

Gases evolved during combustion GB/T 17650.2-1998 materials from cables - Test methods - Part 2. Measurement pH and conductivity to determine the acidity of gases (idtIEC 60754-2.1994)

GB/T 17651-1998 Measurement of smoke density (all parts) of cables burning under certain conditions (IEC 61034 (all section

Minute))

GB/T 18380.1 cables under fire conditions test - Part 1. a single vertical insulated wire or cable burning test

Method (idtIEC 60332-1.1993)

Multimode fiber optic cable characteristics (Characteristics 2007 for OAN 50/125µm graded index. ITU-TG.651.1 ofa50/125µmmultimodegradedindexopticalfibrecablefortheopticalaccessnetwork)

3 Symbol

The following symbols apply to this document.

lambdaCC --- after a cable cut-off wavelength of the optical fiber;

Nominal outside diameter d --- microcable or micro fiber unit.

YD/T 2554.1 | GB/T 9771.1 | GB/T 20186.1 | GB/T 7424.3 | GB/T 7424.21 | GB/T 7424.20 | […]