Self-supporting insulated and protected wires for overhead power lines GOST 31946-2012
The wires are designed for overhead power lines with a rated voltage of 0.6/1 kV inclusive and protected wires for overhead power lines of 20 kV (for networks with a voltage of 10, 15 and 20 kV) and 35 kV (for networks with a voltage of 35 kV) with a nominal frequency 50 Hz.
Types of climatic performance: B, placement categories – 1, 2 and 3 in accordance with GOST 15150-69.
Ambient temperature during operation in a stationary state: from -60˚C to + 50˚C.
The minimum bending radius of the wire during installation and installed on the supports must be at least 10 D, where D is the outer diameter of the wire, mm.
The permissible heating of current-carrying conductors during operation should not exceed 90˚С in normal mode, and 250 ˚С in short-circuit mode.
Warranty period: 3 years
SIW-1 is a self-supporting insulated wire for overhead power lines for a voltage of 0.6 / 1 kV inclusively with an uninsulated zero carrier conductor.
– Construction of the main electrical conductors of the II-nd class in accordance with GOST 22483-2012 from aluminum.
– Construction of a non-insulated zero-carrying conductor of the II class in accordance with GOST 22483-2012 from an aluminum alloy.
– Insulation: Light-stabilized cross linked polyethylene.
SIW-2 is a self-supporting insulated wire for overhead power transmission lines for a voltage of 0.6/1 kV inclusive with an insulated zero carrier conductor.
– Construction of the main electric conductors of the II class in accordance with GOST 22483-2012 from aluminum.
– Construction of an insulated zero-carrying conductor of the II class in accordance with GOST 22483-2012 from an aluminum alloy.
– Insulation: Light-stabilized cross linked polyethylene
SIW-3 is a protected wire for overhead power lines for voltages of 10-20 and 35 kV inclusive.
– Construction of electric conductors of the II class in accordance with GOST 22483-2012 from an aluminum alloy.
– Insulation: Light-stabilized cross-linked polyethylene.
SIW-4 Self-supporting insulated wire for overhead power transmission lines for a voltage of 0.6/1 kV inclusive without a zero carrying conductor.
– Construction of electric conductors of the II class in accordance with GOST 22483-2012 made of aluminium.
– Insulation: Light-stabilized cross linked polyethylene
– The number of main conductive cores is set from the row: 1,2,3,4
