Prospects for manufacturing electrical investigated products based on modified copper oxide (I) a novolac resin. It is shown that copper oxide modification improves the physico-mechanical, tribological, electrical properties, resistance to mechanical wear and oxidation products of the materials. Introduction of coke in the material increases its durability when operating on the worn contact network. Trial runs have shown a trolley parks that the contact insertion trolley manufactured using a modified copper oxide (I) novolak binder in performance on average 2-4 times higher than the commercial materials of different manufacturers

Keywords: trolley collector insert, carbon and graphite material, modification of the novolak binder, copper oxide (I), sea trials

The authors propose a method for determining the total impact energy of a bus rollover to the conditions of the Rules of the United Nations Economic Commission for Europe № 66 (UNECE) intended for the certification of passenger motor vehicles of category M3. Propose an adjustment to the formula for calculating the height of the fall of the center of gravity of the bus.

Keywords: The bus, safety of bus construction, strength, deformation, a centre of mass, energy.

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