Complete switchgears are & nbsp; for the reception and distribution of electrical energy with a frequency of 50 Hz with a voltage of 10 (6) kV & nbsp; with rated current of busbars 630,1000,1250,1600,2000,2500 and 3150А and operated in regions with a temperate climate (from -25 ° С to + 40 ° С). & nbsp; Type of climatic modification U3 or T3 according to GOST 15150. & nbsp; Normal operation of the switchgear is ensured under the following conditions: & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; 1. Altitude above sea level & ndash; no more than 1000 m; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; 2.Environment & ndash; is not explosive, does not contain conductive dust, corrosive gases and vapors in concentrations that reduce the parameters of the KTP in unacceptable standards; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; 3.Type of atmosphere & ndash; II in accordance with GOST 15150. & nbsp; The main technical parameters of the switchgear are shown in Table 1. Classification of cabinets is given in Table 2. In case of double-row cabinet design, the switchgear is equipped with busbar bridges. Busbar bridges are only installed on the outermost cabinets. The distance between the fronts of the cabinets must be 2000, 2500 or 3000 mm. & Nbsp;