The test provides a quantitative evaluating index for safety storage with overloadcoefficient.
试验中还通过超载系数，提供了一个安全储备的定量评估指标。
2
Every machine is equipped with protect travel switch in order to increase safety coefficient for repairing and maintenance. It also has thermal overload relays to protect the motor.
每台机器均配有保护行程开关，为维修、保养增加一份安全系数。且装有热过载继电器，保护电机。
3
But when surcharge preloaded, the coefficient will change with the overload ratio and its duration time.