Disconnector-earthing switch RDZ-10 LLC PK "Electromechanical Plant"

OKP 34 1421

GOST 689 - 90
TU 3414 - 006 - 00931655 - 95


SYMBOL STRUCTURE

RDZ - 10III / XXX - U1
R - disconnector
D - Number of columns per pole (two)
3 - The presence of a ground electrode
10 - Value of rated voltage (10 kV)
III - Degree of pollution (III - strong) according to GOST 9920 - 89
XXX - Amount of rated current (200, 400 A)
U1 - Climatic modification and placement category according to GOST 15150 - 69

TERMS OF USE

The nominal value of climatic factors according to GOST 15150 - 69.
Height above sea level no more than 1000 m; when using a disconnector at an altitude of over 1000 m and up to 4500 m, the rated current must be reduced by 5% for every 500 m.
The maximum wind pressure is 700 Pa (corresponds to a wind speed of 34 m / s).
The maximum ice wall thickness is 20 mm at a wind speed of 12 m / s.
The degree of pollution of the atmosphere I . . . III.
The group of operating conditions in terms of the impact of mechanical factors of the external environment - M3 in accordance with GOST 17516.1 - 90.
Safety requirements - in accordance with GOST 12.2.007.3 - 75.

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