Contact line directly fixed to the pillar supporting the suspension form on the device

A direct line of contact from the fixed to the pillar supporting the suspension form on the device.
Simply hanging at home and abroad to do a lot of research and improvement. China currently uses an elastic band air circuit breaker device in a simple suspension system installed at the line of contact of the tension anchor compensation device to electric meter the tension and sag Circuit breaker of the suspension point 8 ~ 16m long elastic sling, sling suspended by the elastic contact line, which reduces the resulting suspension point hard point, improving the take-current conditions. Another span appropriately reduced, increasing the tension in the line of contact to improve sag right to take flows.