The power supply of urban electric and railway transport is a complex multi-level system, consisting of a large number of devices, among which the most important is the contact network. One of the main elements of a contact network are the supports (poles), providing a specified position of a catenary in the plan and profile above the roadway, thereby implementing a transmission rolling stock and the reliability of the current collection. The main and important issue is ensuring strength, reliability and less complexity of connecting pipes of different diameters in their manufacture. To take account of the effect of all applied loads, the authors proposed a unique method and made a special stand is-1, which allow to accurately simulate operating loads and provides ease of load cases in the test process The studies showed that the proposed method of testing poles is the most accurate method to simulate the load acting on it and provides easy loading support in the testing process. Held on the proposed methodology of field tests of serial support OGK-7 on a specially made stand is-1 showed a good convergence of the theoretically calculated values of stresses and strains with the experimental ones (discrepancy does not exceed 7%).