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AS 4730.1:2018 pdf free

AS 4730.1:2018 pdf free.Mining – Winding equipment
The winder control system shall also provide the following:
(a) Functions to prevent operation of the conveyance during loading or unloading of persons, materials or minerals.
(b) Functions to control operation of the conveyance during maintenance to prevent unintended movement of the conveyance.
(c) When in personnel riding mode, communication with the conveyance.
(d) Initiation of the emergency stop function that will bring the conveyance safely to rest.
(e) Diagnostics to detect degradation of a safety function so the conveyance is automatically brought to a safe state.
(f) Functions to prevent release of the brakes until drive motor holding torque is present.
(g) Functions to prevent the conveyance from making unintended contact with deployable shaft obstructions.
(h) Functions to prevent declutching of a double drum winder without brakes being applied.
(i) Functions to allow for system recovery from abnormal or faulted conditions such as overwind.
Activation of a safety function shall cause the trip or the alarm to be latched and neither the trip nor the alarm shall be capable of being automatically reset. The loss of power to the winding system, or parts thereof, shall not cause or enable the latch to be reset.Dead man controls shall be provided for the manual operation of any winder.
Measures shall be taken to protect the winder control hardware and to allow it to function as designed and achieve reliability and safety requirements when operating in conditions within its designed environmental limits. The environmental factors include temperature, humidity, altitude, dust,corrosion and electromagnetic phenomena.
The winder control system should also provide一
(a) functions to prevent operation of a personnel conveyance if the conveyance doors or shaft access gates are not closed and locked;
(b) functions to permit opening of a personnel conveyance door or a shaft access gate only when the conveyance is docked at the shaft access point; and
(c) functions to prevent operation of an ore handling conveyance if shaft access gates are not closed.AS 4730.1 pdf free download.

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