O'rnatish simi, polivinilxlorid plastikasidan izolyatsiya bilan, misdan yasalgan ko'p simli yadro bilan.
Simi elektr qurilmalarini stasionar o'rnatish uchun, lift shaftlarida 450 V nominal kuchlanish va 50 Hz chastotada o'rnatish uchun mo'ljallangan va minus 40 °C dan plus 70 °C gacha bo'lgan harorat oralig'ida ishlash uchun.
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