220.127.116.11 Means Necessary for Tests
(a) the direction of movement
(c) an indication of the speed
The display devices or the equivalent shall remain operable during a failure of the normal building power supply. The power source shall be capable of providing for the operation of the display devices or the equivalent for at least 4 h. Where batteries are used, a monitoring system shall be provided. In the event that during normal operation of the car, the monitoring indicates insufficient power to operate the display devices or the equivalent, the car shall not be permitted to restart after a normal stop at a landing.
(a) It shall not be dependent on the availability of normal power.
(c) It shall allow the car to move only with continuous effort.
(d) If the car is moved manually, the effort required to move the car in the direction of load imbalance shall not exceed 400 N (90 lbf). If the means used is removable, it shall be stored outside the hoistway, and access to the means shall be with a key that is Group 1 Security. The key shall be suitably marked to indicate the machine for which it is intended.
(e) Where the manual effort required to move the car exceeds 400 N (90 lbf), a means of electrical operation shall be provided to allow the car to be moved. This means of electrical operation shall require constant-pressure operating devices to move the car, and when activated, operation of the car by all other operating means shall be prevented. A failure of a single constant-pressure operating device shall not permit the elevator to move or continue to move. Where batteries are used for this electrical operation, a monitoring system shall be provided. In the event that during normal operation of the car the monitoring system indicates insufficient power to move the car, the car shall not be permitted to restart after a normal stop at a landing.