GROUNDING DEVICE FOR SCREENING MAGNETIC FIELD OF CONTACT ALTERNATING CURRENT NETWORK Russian patent published in 2007 - IPC H02G7/22 

FIELD: engineering of electric supply lines and devices positioned along the railway for vehicles with electric propulsion, in other words, engineering of devices for preventing dangerous influence of electromagnetic field and of devices subject to grounding.

SUBSTANCE: the effect is achieved due to usage of grounding means not touching the rails. In accordance to the invention, in parallel to rails along placement of contact network supports, for depth of 0,5-1,5 meters a ground wire is placed no more than 800 meters long, which by means of grounding descent is connected to screening wire, while the latter is positioned at least at 2 meter height, one way ground wire may be connected to screening wire of parallel way by means of bridges, grounding wire may be placed in the body of road formation. Therefore, usage of suggested device allows substantial reduction of strength of magnetic field occurring during movement of train and results in reduction of dangerous influence of magnetic field on humans, and also allows to increase productivity of labor due to avoided disconnection and reconnection of ground wire during maintenance of railway.

EFFECT: reduced dangerous influence of magnetic field, improved productivity of labor during railway maintenance.

3 cl, 3 dwg