Common test methods for insulating and sheathing materials of electric and optical cables - Part 14: Methods for general application - Test at low temperature
1 Scope
GB/T 2951 specifies the test methods to be used for testing polymeric insulating and sheathing materials of electric cables and optical cables for power distribution and telecommunications including cables used on ships, and in offshore applications.
This part of GB/T 2951 gives the methods for tests at low temperature which apply to the insulating and sheathing PVC and PE compounds and of wires, electric and optical cables.
1.1 Normative References
The following normative document contains provisions which, through reference in this text, constitute provisions of this part of GB/T 2951. For dated references, subsequent amendments to, or revisions of, any of these publications do not apply. However, parties to agreements based on this part are encouraged to investigate the possibility of applying the most recent edition of the normative document indicated below. For undated references, the latest edition of the normative document referred to applies.
GB/T 2951.11-2008 Common Test Methods for Insulating and Sheathing Materials of Electric Cables and Optical Cables — Part 11: Methods for General Application — Measurement of Thickness and Overall Dimensions — Tests for Determining the Mechanical Properties (IEC 60811-1-1:1993, IDT)
2 Test Values
Full test conditions (such as temperatures, durations, etc.) and full test requirements are not specified in this standard; it is intended that they should be specified by the standard dealing with the relevant type of cable.
Any test requirements which are given in this part may be modified by the relevant cable standard to suit the needs of a particular type of cable.
Foreword II
1 Scope
1.1 Normative References
2 Test Values
3 Applicability
4 Type Tests and Other Tests
5 Pre-conditioning
6 Test Temperature
7 Median Value
8 Tests at Low Temperature
8.1 Bending Test at Low Temperature for Insulations
8.2 Bending Test at Low Temperature for Sheaths
8.3 Elongation Test at Low Temperature for Insulations
8.4 Elongation Test at Low Temperature for Sheaths
8.5 Impact Test at Low Temperature for PVC Insulations and Sheaths
