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(1) IEC 60502-4

Power cables with extruded insulation and their accessories for rated voltages from 1kv (Um=1,2 kv) up to 30 kv (Um=36 kv)

Part 4: Test requirements on accessories for cables with rated voltage from 6 kv (Um=7,2 kv) up to 30 kv (Um=36 kv)

(2) IEC 60721

Classification of environmental conditions

(3) IEC 60840

Power cables with extruded insulation and their accessories for rated voltages above 30 kv (um=36 kv) up to 150 kv (Um=170 kv) Test methods and requirements

(4) DIN 53370

Testing of plastic films:

Determination of the thickness by mechanical peeling

(5) DIN 53455

Testing of plastics: Tensile test

(6) DIN 53378

Testing of plastic films: Determination of colour fastness to hydrogen sulphide

(7) DIN 53388

Testing of plastic and elastomers: Exposure to daylight under glass

( 25() -26()(2))

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* " " ' 6138 13.12.2001 ' 170.

" " ' 7105 2.4.2012 ' 978 ' "-2012; 30 .