Efficient and completely safe distribution of three-phase alternating current with power frequency of 50 and 60 Hz with voltage 6 and 10 kV in any situation is the main purpose for which the complete device of KRU-SESH-59 (KRUN) model is intended. Due to the peculiarities of its modular construction it can operate in open pit mines, drilling installations and other hard-to-reach objects in the severest climatic conditions. Several decades of experience for the equipment creation similar to KRUN 6, 10 kV help now Electroshield Samara to produce the equipment that was recognized not only in Russia but also abroad.