|Nominal section there lived the mm2||Number and nominal diameter mm provolok||Maximum diameter of a wire of mm||Raschetnayamassa of kg/km||Electric soprotivleniye1km veins to a direct current at 20 °C, Ohm, no more|
|MK 27-11||MKE 27-11||MK 27-11||MKE 27-11|
MKE - the screen in the form of a braid from copper tinned a provolok.
Scope of a wire of MK 27-11, MKE 27-11:
Wires of MK 27-11 are intended for the mobile and fixed installation of intra block, interblock, intra instrument and interinstrument connections in electronic and electric devices on a rated alternating voltage of 380 V with a frequency of 10 kHz and constant tension of 550 Century.
Wires of MK 27-11 are intended for operation in all macroclimatic areas by land and by sea, except the macroclimatic area with very frigid climate.
Wires of MK 27-11 are resistant to impact of sinusoidal vibration in the range of frequencies from 1 to 5000 Hz with an amplitude of acceleration of 400 m / с2, mechanical blow of single action with peak shock acceleration. 10000 m / с2 duration of action of shock acceleration of 0,1-2,0 ms, to mechanical blow of repeated action with peak shock acceleration of 1500 m / с2 duration of action of shock acceleration of 1-5 ms, linear acceleration of 5000 m / с2 and to acoustic noise in the range of frequencies of 50-10 000 Hz at the level of sound pressure (concerning 2/105 Pas) 170 dB.
Wires of MK 27-11 are steady against influence of the lowered atmospheric pressure to 1,3х10-4 Pas at a temperature up to 125 °C. Wires of MK 27-11 allow one-time use in the conditions of the lowered atmospheric pressure to 666 Pas during 3 h at a temperature of 250 °C and an alternating voltage of 380 V (constant voltage of 550 V) or at a temperature of 400 °C and an alternating voltage of 220 V (constant voltage of 450 V), and also within 15 min. at a temperature of 450 °C and an alternating voltage of 60 V (constant voltage of 150 V).
Wires of MK 27-11 are steady against influence of the increased atmospheric pressure to 295 kPa. Wires of MK 27-11 are resistant to influence of static dust (sand), salt (sea) fog, mineral oil, gasoline, mold mushrooms and sunlight.
Wires of MK 27-11 are steady against influence of gas mixes with a pressure of 295 kPa of the following structure:
a) nitrogen to 96%, oxygen from 4% to 50%, hydrogen to 20%, carbon dioxide to 3%, helium to 1%, other gases - 1%;
b) helium - 50%, nitrogen - 50%;
c) argon - 90%, nitrogen - 10%.
Wires of MK 27-11 do not extend burning. When heating wires over 250 °C, and also burning of waste of wires are allocated toxic gases.
Minimum operating time of wires: 1000 hours at a temperature of 250 °C, 25 000 watch at a temperature of 125 °C, 100 000 watch at a temperature of 100 °C. The minimum shelf life of wires - 20 years. The minimum service life - 20 years. A 95% resource - 1500 hours.
Technical characteristics of a wire of MK an air 27-11vlazhnost at 35 °C [%] 98
Pulse tension of [B] 900
Test alternating voltage with a frequency of 50 Hz, 5 min. [kV] 1.75
Maximum working temperature of a vein [°C] +250
Working alternating voltage with a frequency of 10 kHz of [B] 380
Working constant tension of [B] 550
Bend radius at a temperature of -60 °C of [outer diameters] of 5
Construction length, not less [m] 25
Ambient temperature, top limit [°C] +250
Ambient temperature, lower limit [°C]-60
Electric resistance of isolation, not less [Mom*km] 100000