High voltage & heavy current test base is commonly used to do type test for products of high voltage apparatuses

in order to verify their withstand capabilities under severe operation conditions

hence convincing the power clients with object-oriented test data.Huge capacity of test facilities is necessary.Generally

there are some sets of voltage source and current source consisting of tremendous size of test infrastructure.Those facilities can be operated independently or dependently on the basis of requirements of various objects under test.Overhead lines are needed in the test base to carry the current from current source to objects under test in some case.When the overhead lines just put into service

they vibrate violently in the air

so that

the big steel-made frame fixed the overhead lines sway strongly.It seriously threatens the safety of test facilities.Aiming at the actual problem existing in the industry practice

this article investigates the vibration reason of overhead lines by calculating electro-magnetic force using simulation software

and gives useful solutions.A good effect is achieved after improvement based on one of the solutions.The experience from this article can give reference to engineers and technicians.