Specific test methods for insulating and sheathing polyethylene and polypropylene compounds of electric cables. Elongation at break after pre-conditioning. Wrapping test after pre-conditioning. Wrapping test after thermal ageing in air. Measurement of mass increase. Long-term stability test. Test method for copper - catalyzed oxidative degradation
Boxes and enclosures for electrical accessories for household and similar fixed electrical installations. Part 22. Particular requirements for connecting boxes and enclosures
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