Thought provoking PAT question!

perspicacious:

One for today and probably longer!


Scene: Workshop with woodworking machinery (stationary equipment & fixed equipment).


Scenario: PAT guy "fails" some equipment for not having a means to stop rotation is less than 10 seconds.


Equipment being saws, pillar drill and a bench grinder.


Views?


Regards


BOD


Just a bit of info for you all;

1.2.4.

Stopping

1.2.4.1.

Normal stop Machinery must be fitted with a control device whereby the machinery can be brought safely to a complete stop. Each workstation must be fitted with a control device to stop some or all of the functions of the machinery, depending on the existing hazards, so that the machinery is rendered safe. The machinery’s stop control must have priority over the start controls. Once the machinery or its hazardous functions have stopped, the energy supply to the actuators concerned must be cut off.

1.2.4.2.

Operational stop Where, for operational reasons, a stop control that does not cut off the energy supply to the actuators is required, the stop condition must be monitored and maintained.

1.2.4.3.

Emergency stop Machinery must be fitted with one or more emergency stop devices to enable actual or impending danger to be averted. The following exceptions apply: machinery in which an emergency stop device would not lessen the risk, either because it would not reduce the stopping time or because it would not enable the special measures required to deal with the risk to be taken, portable hand-held and/or hand-guided machinery. The device must: have clearly identifiable, clearly visible and quickly accessible control devices, stop the hazardous process as quickly as possible, without creating additional risks, where necessary, trigger or permit the triggering of certain safeguard movements. Once active operation of the emergency stop device has ceased following a stop command, that command must be sustained by engagement of the emergency stop device until that engagement is specifically overridden; it must not be possible to engage the device without triggering a stop command; it must be possible to disengage the device only by an appropriate operation, and disengaging the device must not restart the machinery but only permit restarting. The emergency stop function must be available and operational at all times, regardless of the operating mode. Emergency stop devices must be a back-up to other safeguarding measures and not a substitute for them.

perspicacious:

One for today and probably longer!


Scene: Workshop with woodworking machinery (stationary equipment & fixed equipment).


Scenario: PAT guy "fails" some equipment for not having a means to stop rotation is less than 10 seconds.


Equipment being saws, pillar drill and a bench grinder.


Views?


Regards


BOD


Just a bit of info for you all;

1.2.4.

Stopping

1.2.4.1.

Normal stop Machinery must be fitted with a control device whereby the machinery can be brought safely to a complete stop. Each workstation must be fitted with a control device to stop some or all of the functions of the machinery, depending on the existing hazards, so that the machinery is rendered safe. The machinery’s stop control must have priority over the start controls. Once the machinery or its hazardous functions have stopped, the energy supply to the actuators concerned must be cut off.

1.2.4.2.

Operational stop Where, for operational reasons, a stop control that does not cut off the energy supply to the actuators is required, the stop condition must be monitored and maintained.

1.2.4.3.

Emergency stop Machinery must be fitted with one or more emergency stop devices to enable actual or impending danger to be averted. The following exceptions apply: machinery in which an emergency stop device would not lessen the risk, either because it would not reduce the stopping time or because it would not enable the special measures required to deal with the risk to be taken, portable hand-held and/or hand-guided machinery. The device must: have clearly identifiable, clearly visible and quickly accessible control devices, stop the hazardous process as quickly as possible, without creating additional risks, where necessary, trigger or permit the triggering of certain safeguard movements. Once active operation of the emergency stop device has ceased following a stop command, that command must be sustained by engagement of the emergency stop device until that engagement is specifically overridden; it must not be possible to engage the device without triggering a stop command; it must be possible to disengage the device only by an appropriate operation, and disengaging the device must not restart the machinery but only permit restarting. The emergency stop function must be available and operational at all times, regardless of the operating mode. Emergency stop devices must be a back-up to other safeguarding measures and not a substitute for them.