GB/T 17737.318-2018Coaxial communication cables -- Part 1-318: Mechanical test methods -- Heat performance tests (English PDF)

Foreword

GB/T 17737 "Coaxial Communication Cable" has or plans to issue the following parts.

--- Part 1. General rules, definitions and requirements;

--- Section 1-31 . Mechanical test methods ; Ellipticity test ;

-- Part 1-302 . Mechanical test methods ; eccentricity test ;

-- Part 1-304 . Mechanical test methods ; Impact test ;

Part 1-108 . Mechanical test methods -- Tensile strength and elongation test of copper clad metal ;

--- Part 1-310. Mechanical test methods Torsional characteristics of copper clad metal;

--- Part 1-313. Mechanical test methods Adhesion of media and sheath;

--- Part 1-314. Mechanical test methods Bending test of cables;

--- Part 1-316. Mechanical test methods Maximum tensile strength test of cables;

--- Part 1-317. Mechanical test methods Cable compression test;

--- Sections 1-318. Mechanical test methods Thermal performance test;

--- Part 1-324 . Mechanical test methods Cable abrasion resistance test ;

--- Part 1-325 . Mechanical test methods Wind - induced vibration test ;

This section is Part 1-318 of GB/T 17737.

This section was drafted in accordance with the rules given in GB/T 1.1-2009.

This section uses the translation method equivalent to the use of IEC 61196-1-318.2008 "coaxial communication cable part 1-318. mechanical test side

Thermal performance test".

The Chinese documents that have a consistent correspondence with the normatively quoted international documents in this section are as follows.

---GB/T 17737.1-2013 Coaxial telecommunication cables Part 1. General specifications General, definitions and requirements (IEC 61196-1.

2005, IDT);

---GB/T 2423.2-2008 Environmental testing for electric and electronic products Part 2. Test methods Test B. High temperature

(IEC 60068-2-2.2007, IDT).

1 Scope

This part of GB/T 17737 applies to coaxial communication cables. It specifies test methods for determining the following properties.

--- Heat resistance of the medium. The ability of the medium to withstand mechanical deformation due to radial pressure exerted by the inner conductor at high temperatures;

--- Heat exposure. The ability of the media or jacket to withstand high temperatures;

--- Thermal properties of semi-rigid cables. The ability of semi-rigid cable structures to withstand medium expansion at elevated temperatures;

--- Dimensional stability. The displacement of each component of the cable to verify the suitability of the connector for the cable.

2 Normative references

The following documents are indispensable for the application of this document. For dated references, only dated versions apply to this document. For undated references, the latest version (including all amendments) applies to this document.

IEC 61196-1 Coaxial communication cable Part 1. General specification General rules, definitions and requirements (Coaxialcommunication

cables-Part 1.Generic specification-General,definitionsandrequirements)

IEC 60068-2-2 environmental test part 2-2. test test B. high temperature (Environmental testing-Part 2-2.

Tests-TestsB. Dryheat)

3 Terms and definitions

The terms and definitions defined by IEC 61196-1 apply to this document.

4 Heat-resistant fluidity of medium