IEC 60811-4-2:1990

IEC 60811-4-2:1990

February 1990
International standard Cancelled

Common test methods for insulating and sheathing materials of electrical cables - Part 4: Methods specific to polyethylene and polypropylene compounds. Section Two: Elongation at break after pre-conditionning - Wrapping test after pre-conditionning - Wrapping test after thermal ageing in air

Gives the methods for measurement of elongation at break afterpre-conditioning, for wrapping test after pre-conditioning, forwraping test after thermal ageing in air, for measurement of massincrease, for long-term stability test and for measurement ofcopper-catalysed oxidative degradation, which apply to polyolefininsulations.

Main informations

Collections

International IEC standards

Publication date

February 1990

Number of pages

34 p.

Reference

IEC 60811-4-2:1990

Print number

1
Sumary
Common test methods for insulating and sheathing materials of electrical cables - Part 4: Methods specific to polyethylene and polypropylene compounds. Section Two: Elongation at break after pre-conditionning - Wrapping test after pre-conditionning - Wrapping test after thermal ageing in air

Gives the methods for measurement of elongation at break after pre-conditioning, for wrapping test after pre-conditioning, for wraping test after thermal ageing in air, for measurement of mass increase, for long-term stability test and for measurement of copper-catalysed oxidative degradation, which apply to polyolefin insulations.
Standard replaced by (1)
International standard Cancelled
Insulating and sheathing materials of electric and optical cables - Common test methods - Part 4-2: Methods specific to polyethylene and polypropylene compounds - Tensile strength and elongation at break after conditioning at elevated temperature - Wrapping test after conditioning at elevated temperature - Wrapping test after thermal ageing in air - Measurement of mass increase - Long-term stability test - Test method for copper-catalyzed oxidative degradation

Specifies the test methods for testing polymeric insulating and sheathing materials of electric and optical fibre cables for power distribution and communications, including cables used on ships and in offshore applications. These test methods apply specifically to polyolefin insulation and sheath. The principal changes with respect to the previous edition are listed below: a) A measurement of tensile strength is included in Clause 8. b) Clause 10 is now the only method in IEC 60811 for wrapping test after thermal ageing in air. c) Two ageing conditions are now specified for the long-term stability test in Annex A.

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