→Railway switch machine is in the locking position, then apply external force on action bar and locking bar in reverse action direction. The external force starts to increase slowly from zero until the lock bending fails. The maximum external force in this process is trailable force.
→Railway switch machine is in a locking position, then apply a horizontal force on the detecting bar, which should be reliably disconnected and should not damage the contact seat. →Comply with standards GB/T25338.1 Switch machines for railways-Part 1: General specification, GB/T25338.2 Switch machines for railways-Part 2: Test methods
