PART XIII WINDING |
| Winding engines and installations 13.1 (1) Before any winding installation is installed, the mine manager shall submit to the Chief Inspector - (a) a plan showing the location of the shaft together with the general layout of the proposal; (b) details, including the factors of safety, of winding machinery and any shaft conveyance; (c) particulars of any rope and any attachments to any shaft conveyance with its factors of safety; (d) details of the design of the headframe, associated bins and the provision to be made in the headframe to deal with overwinds. (2) The Chief Inspector may by notice in writing require the mine manager - (a) to furnish such additional design particulars and other information; (b) to make such additions or alterations to the installation, as may be specified by him or her in such notice. The mine manager shall ensure that :- General requirements of winding installations 13.2 (a) - any part of a winding installation, including the headframe, is of sound construction and adequate strength; (b) - such installation is maintained in safe working order; (c) - the engine of the winding installation is firmly connected to a rigid foundation and so designed, constructed and maintained that, with the power provided, the raising and lowering of persons, material or rock is carried out easily, regularly and safely. Availability of winders 13.3 - where the usual means of exit from underground workings is by winding, (a) - the winder is kept ready for use and, except in the case of an automatic winder, a winding engine driver remains in control of such winder while any person is underground; (b) - the source of power to the engine of such winder is not cut off unless and until it is safe to do so. Depth indicators 13.4 (a) - any winder is, in addition to any marks on the rope, provided with reliable depth indicators which shall clearly and accurately show - (i) the position of the shaft conveyance; (ii) the places in the shaft at which reduction in winding speed is necessary; (b) - provision is made to warn the driver of the winding engine of - (i) the arrival of the ascending shaft conveyance at a point in the shaft; (ii) the distance of which from the uppermost station for persons is not less than the equivalent of three revolutions of the drum or sheave of the winder; (iii) the approach of the descending shaft conveyance to the lowest station for persons. Speed indicator and tachograph 13.5 (a) - any winder is fitted with a speed indicator and a tachograph, and is used and maintained in working order; (b) - the maximum speed at which the winder shall run safely is fixed, as approved by the Chief Inspector. Speed control 13.6 - any winder is provided with an automatic contrivance so as to prevent over winding and over speeding. Overwind preventer 13.7 - in the shaft headframe or tower a device is provided which shall cut off the power from the winding engine and bring the winding drum or driving sheave to rest by automatic application of the brakes before any shaft conveyance, counterweight or attachments reaches any permanent obstruction to its passage. Winder brakes 13.8 (1) - each drum of any double drum winder is provided with one or more brakes or, in the case of a single drum winder, the drum of such single drum winder and the driving sheave of any friction winder is provided with two or more brakes, which - (a) shall act, if applied in any manner, directly on such drum or sheave, as the case may be; (b) shall be so designed, adjusted and maintained as to stop and hold the shaft conveyance under all conditions of loading, direction of travel and speed; (c) may be applied manually by the driver of the winding engine irrespective of the action of any safety device that may act to apply such brake or brakes; (d) shall be automatically applied when the supply of power to the winding engine fails, or when the pressure of any fluid or other medium used as a means of controlling the brakes falls below a predetermined level; (e) shall be automatically applied if an earth fault occurs in the electrical control circuit of push button controlled winders; (f) if applied to the drum, shall be capable of supporting a load equivalent to two times the maximum static load normally hoisted by that drum from the lowest station; (g) if applied to the driving sheave, shall be - (i) capable of producing a braking torque, when conveying persons, of not less than three times, or, when conveying material or rock, of not less than two times, the maximum out of balance static torque which will be applied to the driving sheave by the normal loads to be carried by the winder; (ii) not greater than 70 per cent of that which will cause the winding rope to slip on the driving sheave, based on the minimum sliding co-efficient of friction between the rope and sheave; (h) shall, as far as is practicable, be provided with a steel tension member between individual sole plates of shoes. (2) (a) -the braking is designed in such a way that the failure of any one component in that system will not prevent the winder from being brought safely to rest; (b) - push button and automatically controlled winders are provided with a device which will automatically apply the brake before it becomes worn sufficiently to affect its safe operation; (c) - any part of any braking system has a minimum factor of safety of not less than 10, and screwed members in tension, the failure of which would render the brake inoperative, have a minimum factor of safety not less than 15. Control selection 13.9 - where a winder is controlled by either a manual or an automatic mode, the device for selecting the control mode is available only to a person duly authorized by him or her. Emergency stop switch 13.10 (a) - any winder is provided with a conveniently located emergency stop switch for the purpose of stopping the engine and applying the brakes; (b) - where a winder is controlled from within a cage by push button controls, that a stop button is provided which, when operated, shall cause the winder to stop. Acceleration control 13.11 - a shaft conveyance in which persons are travelling shall not be accelerated or decelerated by the winding engine at a rate greater than 1,5 meters per second per second, except in the case of an emergency, when deceleration shall not be more than 5 meters per second per second. Backing out devices 13.12 - any device provided to permit backing out from an overwound position responds to manual control only and permits withdrawal from the overwind position only. Flanges or horns 13.13 - any winding drum has flanges or horns, and if conical or spiral, such other appliances so as to prevent the rope from slipping off or coiling unevenly. Minimum turns of rope on drum 13.14 - there is not less than three turns of rope upon the drum when the shaft conveyance is at the lowest station from which winding is carried on and the end of the rope is fastened securely round the arm or shaft of the drum. Drum and head sheave 13.15 (a) - the diameter of a drum or head sheave is not less than - (i) in the case of a locked coil rope, 100 times the diameter of the rope; (ii) in the case of any other rope, 80 times the diameter of the rope. (b) - the depth of the rope groove in the head sheave is not less than twice the diameter of the rope. Driving sheave 13.16 (a) - the diameter of the driving sheave of a friction winder, when measured at the bottom of the rope groove, is not less than - (i) 100 times the diameter of the winding rope when locked coil ropes are used; (ii) 90 times the diameter of the winding rope when flattened strands are used; (b) - the grooves of a multigrooved sheave are of substantially the same root diameter. Deflection sheave 13.17 (a) - the diameter of any deflecting sheave in a friction winding system is not less than 0,9 times the diameter of the corresponding driving sheave; (b) - the angle of contact of the rope on a deflecting sheave is of such a nature so as to prevent the rope slipping on the sheave. Slip and direction indicator 13.18 -any friction winder is provided with - (a) a device which shall indicate slip of the rope relative to the driving sheave and stop the winder if a predetermined rate of slip is exceeded; and (b) a device for indicating in which direction the driving sheave is turning. Operating levers 13.19 (a) - any winding drum at the driver's right hand side shall have overlay rope; where only one drum is used it shall have overlay rope; (b) - the reversing lever of any air operated winder and the control lever of any electrically operated winder follows the overlay rope in the direction of movement; (c) - where a hand-operated brake lever is provided on any winder, that it is pulled towards the driver to apply the brakes; (d) - the relief and throttle valve levers of any air operated winder is in a central position. Locking devices 13.20 (1) - the operating mechanism of a clutch of any winding drum is provided with a locking arrangement which shall prevent - (a) the inadvertent withdrawal of the clutch; (b) the unclutching of the drum unless the brake or brakes of such drum are fully applied; (c) the release of the brake or brakes of such drum until the clutch is fully engaged and securely locked. (2) - if the clutch is not clearly visible from the operating position of the driver, an indicator shall be provided indicating to the driver at all times the extent to which the clutch is engaged or disengaged. (3) - any bolts and other fittings of winding drums, brakes and clutches shall be rendered secure by means of suitable locking devices. Ropes, bars, links, chains or other connections 13.21 (a) - no rope, bar, link, chain or other connection is used for winding purposes, unless it is of good quality and adequate strength; (b) - only steel wire rope is used for winding purposes and the gauge of the wires used in the construction of such ropes is suited to the diameter of the sheaves and drums. (c) - no rope which has been joined in any manner is used. Shaft conveyances 13.22 (1) - at any shaft which is used for the raising and lowering of persons, a shaft conveyance is provided for the conveyance of persons. (2) - the maximum number of persons allowed to travel in a shaft conveyance at any one time shall be fixed by the mine manager so that at least 0,2 square meters of floor space is allowed for each person in the shaft conveyance. (3) (a) - the shaft conveyance used for the conveyance of persons is provided with a substantial roof or top cover that will safeguard the occupants; (b) - a shaft conveyance has a minimum clear height of two meters from the floor to the top cover; (c) - a multi-deck cage has a trap door fitted in each intermediate deck with a ladder or rungs so as to provide access between decks; (d) - the sides of each deck of a cage are covered with metal plate or mesh as to protect any part of any person or material from protruding outside the cage; (e) - any cage is provided with a securely fastened gate or gates so arranged that they cannot be opened outwards or accidentally; (f) - the floor of any shaft conveyance is kept clean and provision is made to ensure adequate ventilation for persons travelling in the shaft conveyance; (g) - each shaft conveyance is provided with its own distinguishing number. (4) - except as provided for in sub-regulation (5), any shaft conveyance used for examining, repairing or doing other work in a shaft shall be provided with a substantial roof or cover and shall be securely enclosed or otherwise adequately protected to prevent accidents to persons. (5) - where the roof or cover of a shaft conveyance is used as a platform for persons engaged in examining, repairing or doing other work in a shaft, the persons so engaged shall be protected by a hood or cover immediately above them. (6) - the load bearing components of any shaft conveyance used for the conveyance of persons shall have a minimum factor of safety of 10. Attachments between ropes and shaft conveyances 13.23 (1) (a) - the attachments between - (i) any winding rope and the shaft conveyance or counterweight; (ii) any balance rope or tail rope and the shaft conveyance or counterweight; (iii) any connecting rope and the shaft conveyance and any other attached shaft conveyance, are of such a nature that no accidental disconnection can take place; (b) - all attachments and their component parts are marked clearly for the purpose of identification; (c) - the component parts of the attachments between the winding rope or balance rope and the cage, skip, kibble or counterweight shall each have a minimum factor of safety of 10. (2) - means of securing a winding rope to a shaft conveyance or counterweight shall be of a proven design. (3) - multiple winding ropes used in friction winders shall be attached to the shaft conveyance or counterweight through apparatus designed to load the ropes as uniformly as practicable. (4) - the history of all attachments in use is entered in a record book which shall include the :- (a) name of the shaft and compartment in which the attachments are used; (b) identification number of the attachments; (c) date on which the attachments were installed; (d) dates of the examination of attachments, required by these regulations; (e) date when the attachments were removed from service and the reason therefore. Examination and annealing or heat treatment of attachments 13.24 (a) - the attachments between - (i) any winding rope and the shaft conveyance or counterweight; (ii) any balance rope or tail rope and the shaft conveyance or counterweight, at intervals not exceeding six months or, in the case of attachments made of special steel, at such extended intervals as may be specified by the Chief Inspector, are examined and annealed or given other proper heat treatment or to be discarded and replaced.; (b) - a proper record is kept of the examination and heat treatment done in terms of paragraph (a). Detaching hooks 13.25 (a) - a winding system in a vertical shaft, other than any such shaft in the course of being sunk in respect of which the end of the winding rope is fastened to the winding drum, is fitted with detaching hooks to detach from the winding rope any shaft conveyance overwound in the headgear and to support it; (b) - the distance between the detaching device on the head frame and the matching portion on the shaft conveyance is at least three meters when the shaft conveyance is at its highest normal operating position. Spring keps or jack catches 13.26 - where winding is carried on in a shaft there are fitted above the bank, spring keps or jack catches or some other contrivance to support any shaft conveyance detached from the winding rope as a result of an overwind. Retarding device 13.27 - in a winding system in respect of which the winding rope is not fastened to the winding drum - (a) the headgear is carried sufficiently high to allow a clearance of at least 7,5 meters in which the shaft conveyance can travel above or beyond the highest station for persons; (b) the shaft is carried sufficiently deep to allow an overrun space of at least 7,5 meters in which the shaft conveyance can travel below or beyond the lowest station for person; (c) the over-run space in the headgear above the highest established stopping place is provided with rigid guides or other appliances so arranged that an overwound shaft conveyance is retarded to minimize the risk of the shaft conveyance coming into contact with the rope sheave or the buffer stops in the headgear; (d) the over-run space at the bottom of the shaft below the lowest established stopping place is provided with rigid guides or other appliances so arranged that an overwound shaft conveyance is retarded and arrested before it can come into contact with any fixed obstacle. Conveyance of persons and material 13.28 (1) - no person shall travel in or on a shaft conveyance, unless he or she is duly authorized to do so. (2) (a) - a notice showing the maximum number of persons permitted to travel in a shaft conveyance at any one time to be prominently displayed on the outside of the shaft conveyance, at the bank and at any station from which winding is carried on; (b) - where the conveyance of persons is not permitted in any shaft, a notice to that effect to be prominently displayed at the bank and at any station from which winding is carried on. (3) - no person shall travel - (a) in a shaft conveyance if such conveyance is loaded or partially loaded with rock; (b) in a shaft conveyance which is being used simultaneously for the winding of rock; (c) in or on any shaft conveyance which contains timber, pipes, rails, explosives, or any other material or substance likely to endanger the safety of persons; (d) in a deck of a multi-deck cage while a load other than persons is in a higher deck. (4) The provisions of paragraph (c) of sub-regulation (3) shall not apply to - (a) a person repairing a shaft from travelling in or on a shaft conveyance with tools or materials necessary for repairing the shaft; (b) a person carrying small tools in a suitable container provided by the mine manager; (c) a person travelling with his or her instruments; (d) an onsetter travelling in a shaft conveyance with tools, explosives or materials; (e) any person designated by notice in writing by the mine manager from travelling in circumstances specified by the mine manager in such notice. (5) - an onsetter or person referred to in sub-regulation (4) shall not travel with - (a) any material or article that is not securely fastened to, or secured, in the shaft conveyance; (b) drill steel, timber, pipes or material of similar form. (6) - no skip or bucket shall be filled to such a height that any of the contents can fall out. (7) - no shaft conveyance or material that can sway shall be allowed to leave the bank or a station unless such shaft conveyance or material has been steadied. (8) - when a winder is being used for the conveyance of persons and its operation is under automatic mode, it shall not be capable of motion, unless all shaft doors and the cage doors in connection with that winder are properly closed. Shaft conveyances, embarking and disembarking facilities 13.29 - proper provision is made at the bank and at any station for persons to embark and disembark from a shaft conveyance safely. Restriction on the conveyance of persons with one drum out of gear 13.30 (1) - where a winder is provided with two drums no person, except in an emergency, shall be raised or lowered in a shaft conveyance while one of the drums is out of gear and loose on the drum shaft on which it operates. (2) - in the case of a double drum winder with one drum out of gear the mine manager shall ensure that such drum is prevented from revolving whilst out of gear. Ratio of person or material load to rock load 13.31 - the total mass attached to the winding rope when persons or material are conveyed does not exceed 0,9 times the mass attached to the winding rope when rock is conveyed. Loading limitation 13.32 - a friction winder is not loaded to the extent that will require more than 70 per cent of the available friction torque. Trial run after repairs to winding installation 13.33 (1) - a shaft conveyance is not used for the raising or lowering of persons until it has made at least one complete trip up and down the working portion of the shaft following - (a) any repairs to the winding installation; (b) any replacement of rope, attachments, shaft conveyance or any other equipment; (c) any repairs to the shaft; (d) any stoppage in winding exceeding one hour duration; (e) the occurrence of any seismic event. (2) - the up and down trip referred to in sub-regulation (1) shall be made with the winder under manual control and at a speed not greater than half the normal speed of winding. Driver's logbook 13.34 (1) - a driver's logbook is kept in the winding engine room in which shall be recorded - (a) any special instructions involving the safety of persons given to the winding engine driver and the time such instructions were given; (b) the contents of the shaft conveyance and the last signals received by the winding engine driver when his or her relief is about to take over, and such report shall be countersigned by the winding engine driver by whom he or she is relieved. (2) - any entry in the driver's logbook shall be signed by the person giving the instruction and shall be countersigned by the winding engine driver. Winding during repairs in shafts 13.35 (1) - no winding operation is carried on in any shaft or a headgear while persons are engaged in effecting repairs, conducting an examination or doing other work in such shaft or headgear, except - (a) where such winding operations are necessary for the purpose of effecting the repairs, conducting the examination or doing the other work; (b) where the persons engaged in effecting the repairs, conducting the examination or doing the other work are adequately protected from the shaft conveyances and other winding equipment used in such winding operations as well as from falling objects. (2) - no person shall effect repairs, conduct an examination or do other work in a shaft or a headgear while winding operations are being carried on in such shaft or headgear, except (a) where such person is adequately protected from the shaft conveyances and from other winding equipment as well as from falling objects; (b) where the winding operations are necessary for such person to effect the repairs, conduct the examination or to do the other work. Shaft signalling systems 13.36 (a) - any shaft in which winding is carried on other than a shaft in the course of being sunk is provided with an efficient and safe signalling system in respect of each winder for interchanging distinct and definite signals between the winding engine driver and :- (i) the bank; (ii) any station from which winding is carried on. (b) - any shaft where persons travel on or in a shaft conveyance while carrying out any examination, repair or other work is provided with an efficient means whereby persons carrying out such examination, repair or other work can signal effectively from any depth in the shaft to the winding engine driver. Electric signalling arrangements 13.37 (1) - at any shaft other than a shaft in the course of being sunk where persons or material are conveyed and where the signalling system is operated by electricity, two separate, independent and efficient signalling arrangements (hereinafter referred to as "the locked- bell" and "call-bell arrangements") are used for transmitting signals. (2) - the locked-bell arrangement shall be for the interchange of signals between - (a) the winding engine driver and the bank; (b) the winding engine driver and any station from which winding is carried on, but it shall not enable the banksman to signal on this arrangement to anyone but the winding engine driver. (3) - the signalling system shall be such that the winding engine driver can readily distinguish between signals received from the bank and signals received from any station. (4) - the signal operating mechanism at the bank and at all stations of the locked-bell arrangement shall be kept locked when not in actual use and the key shall be removable and, when not required, shall be retained by the banksman, onsetter or other authorized person. (5) - there shall be in use a bell-brake interlocking device which automatically prevents the shaft conveyance from being raised or lowered after the winding engine driver has given a signal on the locked-bell arrangement until he or she has received a return signal on that arrangement. (6) - the call-bell arrangement shall enable signals to be transmitted to the winding engine driver from :- (a) the bank; (b) any station from which winding is carried on, and shall also enable signals to be interchanged between the bank and any station from which winding is carried on, but it shall not enable the winding engine driver to transmit signals on this arrangement. (7) - the tone on the call-bell shall be such as to be readily distinguishable from that of the locked-bell. (8) - the signal operating mechanism of the call-bell shall be accessible to any person employed in or at the mine to transmit signals. Code of signals 13.38 (1) - the following code of signals shall be observed, namely:- 1 ....................................... Raise when engine at rest 1 ...................................... Stop when engine in motion 2 ...................................... Lower 3 ..................................... Persons about to travel 3 ..................................... In reply: persons may continue to travel or may enter the shaft conveyance for the purpose of travelling 3 .................................... From engine-driver when the shaft conveyance containing persons is brought to rest at a station: persons may leave the shaft conveyance 2 pause 2.............................From driver (clear signal requested): driver wishes to start the winder at his or her discretion 2 pause 2 ......................... To driver (clear signal): driver may start the winder at his or her discretion 2 pause 2 pause 2 ............... From driver: persons must leave the shaft conveyance 2 pause 2 pause 2 ............... In reply: no persons in the shaft conveyance 2 pause 2 pause 2 pause 2 ... Cancel or repeat signal 3 pause 3 pause 3 ............... Person giving signal about to travel 3 pause 3 pause 3 ............... In reply: acknowledgement by driver that person signalling is about to travel 4 pause 1 ............................. Raise slowly 4 pause 2 ............................. Lower slowly 4 pause 4 ............................. To driver: mark signal 4 pause 4 ............................. In reply: acknowledgement by driver of "mark" signal 4 pause 4 pause 4 .............. To driver: clutching signal. 4 pause 4 pause 4 .............. In reply: clutching operations completed. 5 pause 5 ............................. To driver: explosives about to be placed in the shaft conveyance 5 pause 5 ............................. In reply: explosives may be placed in the shaft conveyance 5 pause 5 ............................. From driver when shaft conveyance containing explosives is brought to rest at a station; explosives may be removed from the shaft conveyance 5 pause 5 pause 5 .............. To driver: no explosives in the shaft conveyance. 5 pause 5 pause 5 .............. In reply: acknowledgement by driver that there are no explosives in the shaft conveyance. 6 pause 6 ............................. To driver: winding compartments served by winder locked 6 pause 6 ............................. In reply: acknowledgement by driver of "compartments locked" signal 6 pause 6 followed by station signal.............................. To driver: winding compartments served by winder locked below station designated. 6 pause 6 followed by station signal.............................. In reply: acknowledgement by driver of "compartments locked below station designated" signal 6 pause 6 pause 6 .............. To driver: compartments served by winder re-opened 6 pause 6 pause 6 .............. In reply: acknowledgement by driver of "compartments served by winder re-opened" signal. 6 pause 6 pause 6 pause 6 . To driver: shaft examination and repairs about to take place. 6 pause 6 pause 6 pause 6 . In reply: acknowledgement by driver of "shaft examination and repairs" signal. 7 ..................................... To driver: persons about to have access to the shaft conveyance for a purpose other than travelling or the loading or unloading of rock in trucks or of material. 7 ..................................... In reply: person may have access to shaft conveyance for a purpose other than travelling or the loading or unloading of rock in trucks or of material. 7 pause 7 ............................. To driver: shaft conveyance is clear of all persons who have had access to it for a purpose other than travelling or the loading or unloading of rock in trucks or of material 7 pause 7 ............................. In reply: acknowledgement by driver of "persons clear" signal 8 ..................................... To driver: raising or lowering of rock in trucks or of materials about to commence 8 ..................................... In reply: acknowledgement by driver that raising or lowering of rock in trucks or of material is about to commence 1 ..................................... From driver: persons may have access to shaft conveyance for the purpose of loading or unloading rock in trucks or material 8 pause 8 ............................. To driver: raising or lowering or rock in trucks or of material completed 8 pause 8 ............................. In reply: acknowledgement by driver that raising or lowering of rock in trucks or of material is completed 15 ........................................... Electrician testing bells 15 .................................... In reply: acknowledgement of "bell testing" signal 15 pause 2 pause 2 ............. Electrician has completed test. 10 followed by station signal .............................. Accident to person: station where shaft conveyance is required 1 long ring ......................... Accident to shaft: winding operations to be suspended immediately in all compartments of the shaft. (2) - a code of signals for the identification of the bank and each station in the shaft is formulated. (3) - where necessary, a special code of signals be formulated, to cater for specific circumstances. Code of signals to be posted up 13.39 - at each operating shaft a copy of the code of signals be posted on each underground station from which winding is carried out, in the winding engine room and at the bank. Particulars of ropes 13.40 (1) Before any rope is used for any winding purpose, the mine manager shall furnish to the Chief Inspector the following particulars of the rope, namely the :- (a) name of the manufacturer; (b) date of manufacture; (c) coil number; (d) length in meters; (e) mass per metre in kilograms; (f) diameter in millimeters; (g) type and length of lay; (h) number of strands; (i) class of heart; (j) number of wires per strand; (k) diameter of wires in millimeters; (l) class of core; (m) class of steel in wires; (n) tensile strength of steel in mega pascals; (o) breaking force in kilonewtons; (p) rope test certificate number and place of test. (2) Where in the opinion of the Chief Inspector the particulars of a rope furnished to him or her by the mine manager are insufficient or inadequate, he or she may require the mine manager to obtain a certificate by means of a test of the breaking force of the rope, and the mine manager shall thereupon obtain such a certificate and submit it to the Chief Inspector before using the rope. (3) The test of the breaking force of the rope shall be carried out on a sample cut off at the end of the rope. History of ropes 13.41 (1) The mine manager shall cause the history of any winding rope, balance rope, tail rope or guide rope in use to be entered in a rope record book. (2) The record shall include the :- (a) name and compartment of the shaft in which the rope is used; (b) date on which the rope was installed; (c) dates on which the rope was shortened; (d) dates on which the rope was re-capped; (e) dates of destructive and of non-destructive rope testing; (f) result of destructive or non-destructive rope testing; (g) date when the rope was removed from service and the reason therefore; (h) dates of the examinations of the rope as required by these regulations. Requirements for winding ropes 13.42 (1) Where the winding system is such that it allows for the periodic testing of rope or ropes as required by regulation 13.44, a winding rope which is used without a balance rope or tail rope shall not be used for the raising or lowering of persons, material or rock if the breaking force at any point in the rope is less than whichever is the greatest of - (a) 10 times the effective combined weight of the shaft conveyance and its attachments and the maximum permitted number of persons or load of material; or (b) 9 times the effective combined weight of the shaft conveyance and its attachments and the maximum permitted load of rock; or (c) 5 times the effective combined weight of the length of winding rope, the shaft conveyance and its attachments and the maximum permitted number of persons or load of material; or (d) 4,5 times the effective combined weight of the length of winding rope, the shaft conveyance and its attachments and the maximum permitted load of rock. (2) Where the winding system is such that it does not allow for the periodic testing of the winding rope or ropes as required by regulation 13.44 and a balance rope or tail rope is used, a winding rope shall not be used for the raising or lowering of persons, material or rock if the breaking force at any point in the rope is less than whichever is the greater of - (a) 9 times the effective combined weight of the length of winding rope, the shaft conveyance and its attachments, the maximum permitted number of persons or load of material, and one-half that of any tail carriage and sheave, but this factor may be reduced by 0,0015 for any metre of the length of the winding rope, provided that the factor shall not be less than - (i) 7,5 where the shaft conveyance is suspended by a single winding rope; (ii) 6,875 where the shaft conveyance is suspended by two or three winding ropes; (iii) 6,25 where the shaft conveyance is suspended by four or more winding ropes; or (b) 8,1 times the effective combined weight of the length of winding rope, the shaft conveyance and its attachments, the maximum permitted load of rock, and one-half that of any tail carriage and sheave, but this factor may be reduced by 0,00135 for any metre of the length of rope provided that the factor shall not be less than - (i) 6,75 where the shaft conveyance is suspended by a single winding rope; (ii) 6,19 where the shaft conveyance is suspended by two or three winding ropes; (iii) 5,62 where the shaft conveyance is suspended by four or more winding ropes. (3) Where the winding system is such that it allows for the periodic testing of the winding rope or ropes as required by regulation 158 and a balance rope or tail rope is used, a winding rope shall not be used for the raising or lowering of persons, material or rock if the breaking force at any point in the rope is less than whichever is the greater of - (a) 8,1 times the effective combined weight of the length of winding rope, the shaft conveyance and its attachments, the maximum permitted number of persons or load of material, and one-half of any tail carriage and sheave, but this factor may be reduced by 0,00135 for any metre of the length of winding rope provided that the factor shall not be less than - (i) 6,25 where the shaft conveyance is suspended by a single winding rope; (ii) 5,94 where the shaft conveyance is suspended by two or three winding ropes; (iii) 5,62 where the shaft conveyance is suspended by four or more winding ropes; or (b) 7,29 times the effective combined weight of the length of winding rope, the shaft conveyance and its attachments, the maximum permitted load of rock and one-half that of any tail carriage and sheave, but this factor may be reduced by 0,0012 for any metre of the length of winding rope provided that the factor shall not be less than - (i) 5,62 where the shaft conveyance is suspended by a single winding rope; (ii) 5,34 where the shaft conveyance is suspended by two or three winding ropes; (iii) 5,06 where the shaft conveyance is suspended by four or more winding ropes. Requirements for balance ropes 13.43 The mine manager shall not permit the use of a balance rope or tail rope to be used if the breaking force at any point in any such rope is less than 6 times the effective combined weight of the balance rope or tail rope and one-half that of any tail carriage and sheave. Rope testing and examination 13.44 (1) The mine manager shall cause a rope used on a drum winder - (a) to be recapped at intervals not exceeding six months or at such shorter intervals as the Chief Inspector may determine; (b) at intervals not exceeding six months or at such shorter intervals as the Chief Inspector may determine, two meters to be cut from the shaft conveyance or counterweight end and to be tested for purposes of determining the actual breaking strength and general condition of the rope; (c) if required by the Chief Inspector, a sufficient length to be cut from the shaft conveyance or counterweight end to enable a breaking and elongation test to be made of 2 meters of the rope which has repeatedly passed over the head sheave. (2) The mine manager shall obtain a certificate from the testing station showing the results of the test and make such certificate available to the Chief Inspector as soon as possible. (3) A rope test certificate shall not be valid if it has been obtained more than 12 months prior to the date of use of that rope. (4) Where there are two or more layers of rope on a drum, the rope used shall be cropped at intervals not exceeding 12 months at the drum end in a manner that will ensure that the position of the crossover points of the rope on the drum are changed. (5) Where a rope which has previously been in service is used anew for any winding purpose shall immediately after its installation be examined over its entire working length by non-destructive methods. (6) Where at any time the Chief Inspector requires that a rope used with a drum winder shall be examined over its entire working length by non-destructive methods the mine manager shall forthwith cause such examination to be made and inform the Chief Inspector as to the result of the examination as soon as possible. (7) Any rope used in a friction winder shall be examined over its entire working length by non-destructive methods at intervals not exceeding six months. (8) Trace recordings obtained during non-destructive examination of a rope shall be preserved as long as the relevant rope remains in use. (9) Any abnormality recorded during any non-destructive examination of a rope shall be investigated and the findings recorded in the rope record book. (10) At least once in each calendar month at intervals not exceeding 45 days the structure of any winding rope and any balance rope or tail rope shall be examined with a view to ascertaining the amount of deterioration thereof. Periods of service of ropes 13.45 (1) The period of service of any rope shall be determined by the condition and strength of the rope. (2) The mine manager shall discard a rope if it shows - (a) more than six broken wires in any section equal to the length of one external lay; (b) a rapid increase in the rate of stretch over the normal stretch noted during service; (c) marked corrosion; (d) any other unsafe condition. Guide ropes 13.46 (1) Any shaft other than a shaft in the course of being sunk, shall be provided with guides. (2) A guide rope shall not be used if the breaking force at any point in such ropes is less than 6 times the effective combined weight of the rope and its tensioning weight. (3) The provisions of sub-regulation (2) shall not apply to any guide rope which is also used as a winding rope to raise or lower a stage, in which case the breaking force at any point in the rope shall not be less than 5 times the effective combined weight of the length of winding rope, and its share of the combined weight of the stage and attachments, the maximum permitted number of persons and the load of material. (4) Any guide rope shall - (a) be of locked coil or rod construction; (b) not be spliced. (5) The counter weights and their relevant essential parts shall be kept exposed so as to permit regular examination. Application of brakes 13.47 (1) Except in an emergency no person, material or rock shall be lowered by means of the brake alone. (2) The winding engine driver shall ensure that while persons are embarking to or disembarking from a shaft conveyance, the brake is fully applied. Scheme for examination of winding installations, shaft fittings and shaft signalling arrangements 13.48 (1) The mine manager shall formulate a scheme for the systematic examination and testing of winding installations, shaft fittings and shaft signalling arrangements in use. (2) Where any examination or test carried out in terms of a scheme referred to in sub-regulation (1) reveals any weakness or defect by which the safety of persons may be endangered, the mine manager shall suspend winding operations until such weakness or defect is remedied except in so far as may be necessary to remedy such weakness or defect. (3) The results of all examinations and tests carried out in terms of any scheme referred to in sub-regulation (1) together with the action taken to remedy any weakness or defect detected, where necessary, shall be recorded according to the prescribed scheme without delay. Scheme for shaft repairs 13.49 The mine manager shall formulate a scheme detailing the procedure to be followed and precautions to be taken, including the protection from falling objects, during - (a) repairs or examination in a shaft or headgear; (b) any work in connection with maintenance or installation of equipment in a shaft or headgear. Use of shaft conveyances 13.50 No person shall - (a) enter or have access to; (b) continue to travel in; (c) leave, a shaft conveyance, unless and until the appropriate signals have been exchanged. Giving of signals 13.51 No person other than a winding engine driver, banksman, onsetter or other person duly authorized thereto by the mine manager for such purpose shall - (a) give or be permitted to give the signals prescribed by or under these regulations for the use of any shaft conveyance except a signal indicating the occurrence of an accident; (b) in any way interfere with the signalling arrangements. Radio communication devices 13.52 Where a winder is capable of operation under push button control, the mine manager shall cause a radio communication device to be provided inside any shaft conveyance used for the conveyance of persons for purposes of communication from within the shaft conveyance to surface. Entry in winding engine rooms 13.53 No person shall - (a) enter or be permitted to enter any winding engine room unless he or she is authorized to do so by the mine manager; (b) in any way distract the attention of the person operating a winder while it is in motion. Scheme for regulating winding operations 13.54 The mine manager shall formulate a scheme detailing the procedure to be followed and precautions to be taken so as to ensure that winding operations are conducted safely and efficiently. Duties of Banksmen and Onsetters 13.55 (1) No unauthorized person shall give any signal other than an accident signal, or shall in any manner whatsoever interfere with the signalling arrangement provided for winding operations. (2) No person shall be permitted to carry out the duties of a banksman or onsetter unless he or she is trained and is competent to do so. (3) No person, other than the banksman or onsetter on duty, shall give or shall be caused or permitted to give any signals for the raising or lowering of persons, material and minerals provided that - (a) when the banksman or onsetter is not available, a competent person to whom the manager has given written permission to do so may give signals for the conveyance of himself and of any person travelling with him, (b) the blaster in charge at the bottom of a sinking shaft or winze or a person acting under his immediate supervision may give a signal to raise persons, and (c) any person duly authorized in writing by the manager may give signals for the conveyance of persons from any loading station. (4) The banksman, onsetter or other person unauthorized to give signals for winding operations shall - (a) take all reasonable measures to prevent persons from unauthorized access to the conveyance; (b) not allow any person to travel in a conveyance containing minerals; (c) not allow any person to ride on the roof or frame of any portion outside a conveyance; (d) aquaint himself with the number of persons authorized by the Chief Inspector to travel at any one time in a conveyance; (e) not allow any unauthorized person to give signals; Winding Engine Drivers 13.56 (1) Nobody shall drive a winding plant, for which a prescribed permit has been issued unless he or she is a certificated winding engine driver. (2) No person shall speak to or distract the attention of the person operating a winding- engine while in motion, accept a person in authority, and only in cases of emergency. (3) The driver of a winding engine :- (a) shall not, start the engine before he has received a destinct and proper signal to do so, or unless he has received the clear signal; (b) shall not, run such engine at a greater speed than that fixed by the Chief Inspector; (c) shall, accept in the case of an emergency, avoid shocks in starting, in running and stopping the winding-engine; (d) shall apply correctly every device and means at his disposal to prevent the conveyance over-running - (i) the signalled destination, or (ii) when the destination is not signalled, the highest or lowest landing place when persons are being conveyed; (e) shall apply correctly every device and means at his disposal to prevent the conveyance moving in a direction opposite of that signalled; (f) shall not start the engine until the expiry of at least 10 seconds after receiving a signal : Provided that this requirement shall not apply when blasting is about to take place in a sinking shaft; (g) shall not unclutch a drum of the engine until he has assured himself immediately beforehand by testing the brake; (h) shall when a drum of the engine is unclutched, use the brake only for the purpose of maintaining such drum stationary. Lowering from an unclutched drum shall not be permitted; (i) shall not work nor shall be caused or permitted to work a longer shift on the winding engine than 10 hours, except where permission has been obtained from the Chief Inspector and on such conditions as he may direct. |