Posts tagged ‘promyshlennoct and equipment’

Burning Welding Arc

September 5th, 2018

One of the conditions for stability of the arc welding is the inclusion in the welding circuit in series with the arc of inductive resistance, which allows for welding of metallic electrodes on alternating current at a voltage of the welding transformer is about 60 – 65 V and a standard frequency current. When powered […]

Civil Defence

November 5th, 2015

Thus, the test masks were directly in combat conditions. According to several reports from the front mask is gradually improving. Professor Zelinsky advocated in order to supply the front with gas masks were concentrated in the hands of one person. In the mask command officers were poorly distinguishable. The soldiers, who wore a beard, do […]