The dielectric rug is the protectant maintaining the test tension of 20 kV of alternating current with a frequency of 50 Hz. Such carpets in the closed electroinstallations are used (and even in opened if weather dry) with tension higher than 1000 V. Isklyucheniye make especially crude rooms.
Dielectric rubber rugs are applied as an additional protectant in the closed electroinstallations over 1000 V, except especially crude rooms, and in open electroinstallations in dry weather.
Rugs dielectric have a corrugated front surface. Depth of reeves has to be 1-3 mm. Carpets dielectric maintain the test voltage of 20 kW of alternating current with a frequency of 50 Hz. Admissible maximum current of leakage of a carpet no more than 160 ma/sq.m.
Electric durability of the rubbers applied to production of dielectric carpets, not less than 10 kV/mm.