| 摘要 |
A safety device for an aerial lift (10) having a basket or cage (20) with controls (23) which permit an operator standing in the basket or cage to manoeuvre it. The safety device comprises a control module (60) which is programmed to prevent movement of the basket or cage and activate an alarm (64, 80) by cutting electrical supply to a function enable switch (24) and, if the electrical supply to the function enable switch cannot be cut, the control module is further programmed to prevent movement of the basket or cage and activate the alarm by operating an emergency switch (78) to cut the electrical supply. |
