300/500 V NYIFY-U, Multi-Core Power Cable, Copper Conductor, PVC insulated, PVC Sheath AREA OF USE: They are used in humid and wet places where there is no mechanical stress, under plaster and on plaster panel, in pipes, in fixed facilities. Continuous operating temperature at the highest normal conditions: 70 oC Standard: TS EN 50525-2-31 TS HD 21.4 S2 Standard: TS EN 50525-2-31 TS HD 21.4 S2 Cables - Cables with rated voltage up to 450/750V Cables for rated voltages of 450/750V