=== dc2018-12-0028-series-of-2018-pages-081.ppm === Rule 529 Rule 530 Rule 531 Rule 532 Rule 533 Rule 534 Rule 535 Rule 536 Rule 537 Rule 538 Rule 539 Rule 540 Rule 541 Rule 542 Rule 543 Rule 544 Parked vehicles shall apply parking brakes at all times. When on a downgrade, the front wheels shall be directed to the toe with the tires properly blocked. It shall be prohibited for driver to enter or leave the cab while it is being loaded. Dumping over a bank shall be provided with protective ridge and guided by a spotter. Dumping area shall be elevated at least 1% towards the crest. During dumping, the truck shall be positioned at right angle to the dump with both rear wheels on the same level or at an equal distance from the crest. After dumping, the driver shall not start to travel unless the dumping carriage is completely down. Driver shall be required to watch the swing radius of the shovel when backing up for loading position. The driver shall wait for the signal of the spotter. Loaded trucks shall not be used to push or pull other vehicles. Empty trucks shall yield the right of way to loaded units. Overtaking or passing a vehicle at curves and intersections shall be prohibited. Width of permanent two (2) lanes haulage road shall not be less than 3 times the width of the widest hauling truck. Crest along haulage road shall be provided with stockpile or blocks with a height not less than the height of the cam or hub. Spotter shail be required to pose himself not less than 4 meters away normal to the cab before giving the signal to dump. Section 5: Operation of Bulldozer, Grader and Loader When the units are not in use, the blade, buckets or rippers shall be lowered on the ground. Equipment operator shall be alert on danger of slide or falling rocks when cleaning a toe. Back-up lights shall be in good condition when operating at night. The foot brake in tractors and hand brakes on graders and loaders shall be engaged when parked on an incline. When maneuvering on inclined ground, the blade or bucket shall be kept as low as possible. 2018 Coal Mine Safety and Health Rules and Regulations Page | 81 of 133 === dc2018-12-0028-series-of-2018-pages-082.ppm === Rule 545 Rule 546 Rule 547 Rule 548 Rule 549 Rule 550 Rule 551 Rule 552 Rule 553 Rule 554 Rule 555 Rule 556 Rule 557 Rule 558 Whenever possible, grader shall be operated in the same direction as traffic flow. All units shall be parked in an area free from unstable banks/slopes. Unauthorized persons shall be prohibited to ride on dozers, graders, dump trucks, loaders and other heavy equipment other than a trainee as equipment operator. Section 6: Coal and Refuse Piles Coal stockpile shall be built up on open, clean, well-drained hard ground, remote from sources of heat. Every precaution shall be taken to exclude air by packing the coal uniformly and avoiding segregation of different sizes. To avoid undue force ventilation, the stock shall be elongated and shall be oriented to receive minimum effect from the prevailing wind. Refuse piles shall be located in areas which are a safe distance from all underground mine shafts, preparation plants, tipples, or other surface installations and such piles shall not be located over abandoned openings. Where new refuse piles are constructed over exposed coal beds, the exposed coal shall be covered with clay or other inert material as the piles are constructed. A fire-proof barrier of clay or inert material shall be constructed between old and new refuse piles. Refuse deposited on a pile shall be spread in layers and compacted in such a manner so as to minimize the flow of air through the pile. Refuse shall not be deposited on a burning pile except for the purpose of controlling or extinguishing a fire. Clay or other sealant shall be used to seal the surface of any refuse pile in which a spontaneous combustion has occurred. Refuse piles shall not be constructed in such a manner as to prevent accidental sliding and shifting of materials. No extraneous combustible materials shall be deposited on refuse piles. New refuse piles and additions to existing refuse piles, shall be constructed in compacted layers not exceeding 60 centimeters in thickness and shall not have any slope exceeding 2 horizontal to 1 vertical (approximately 27°); however, construction of a refuse pile in compacted layers exceeding 60 centimeters in 2018 Coal Mine Safety and Health Rules and Regulations Page | 82 of 133 === dc2018-12-0028-series-of-2018-pages-083.ppm === Rule 559 Rule 560 Rule 561 Rule 562 Rule 563 Rule 564 Rule 565 Rule 566 Rule 567 Rule 568 Rule 569 Rule 570 Rule 571 thickness with slopes exceeding 27° may be allowed, where engineering data substantiates that a minimum safety factor of 1.5 for the refuse pile will be attained. Foundations for new refuse piles and additions to existing refuse piles shall be cleared of all vegetation and undesirable material that may adversely affect the stability of the refuse pile. All fires in refuse piles shall be extinguished, and only those persons authorized by the Operator, and who have an understanding of the procedure to be used, shall be involved in the extinguishing operation. No person shall be permitted to walk or stand immediately above a reclaiming area or in any other area at or near a surge or storage pile where the reclaiming operation may expose him to a hazard. Section 7: Bucket Wheel Excavator (BWE) Only persons properly trained and familiar with the equipment and mining conditions are allowed to operate a BWE. The BWE operator’s cab shall be kept clean at all times. All safety devices shall be in good operating condition. Any damage at the steel structure of the BWE such as deformation, peeling off paint, cracks or loose bolts must be reported immediately to the supervisor. The BWE operator shall not leave his equipment until properly relieved by another qualified operator, otherwise, the supervisor is informed accordingly. During an emergency, the BWE operator shall press the stop button or pull a rip cord. All BWE workers shall familiarize themselves with various locations of emergency stop buttons and rip cords. All BWE workers shall report immediately to supervisor any safety device that is out of order and report the same to the immediate Safety Supervisor. All “defective” safety devices shall be restored into operation immediately. Before starting each conveyor belt, alarm signal shall be given. Occurrence of surface cracks on the berm and any slope instability observed shall be reported to the supervisor for immediate action. During night time the active BWE pit shall be sufficiently illuminated. 2018 Coal Mine Safety and Health Rules and Regulations Page | 83 of 133 === dc2018-12-0028-series-of-2018-pages-084.ppm === Rule 572 Rule 573 Rule 574 Rule 575 Rule 576 Rule 577 Rule 578 Rule 579 Rule 580 Rule 581 Rule 582 Rule 583 Rule 584 Rule 585 Rule 586 Rule 587 2018 Coal Mine Safety and Health Rules and Regulations If there is a danger of slope failure, the BWE must be moved to a safe location immediately. Maintenance, repair works and troubleshooting shall not be allowed if BWE is in operation. Prior to welding and cutting works, all flammable materials must be removed or covered. Fire extinguishing device shall be readily available. Any deviation from the original design of the BWE shall be allowed only upon approval of the manufacturer. During operation, no worker shall pass or stay below the bucket wheel boom or the discharge boom, in front of the hopper car grizzly and near the bucket wheel. A warning signal shall be given before removing any stock up material from the BWE. Rocks and boulders shall be dropped down and no worker shall be within the designated dropping area. Workers shall not be allowed to stay in-front or behind the crawler track. Only authorized personnel are allowed to enter the electrical room of BWE. All BWE personnel must familiarize themselves on the location of firefighting equipment. During lifting, slewing and traveling motion of BWE the bucket wheel boom shall not touch the slopes. BWE shall be prohibited to travel over rocks, lumps, wood, open trenches, holes, unstable ground and other obstacles. During operation of the BWE, the air conditioning system of the cabin shall be turned on to prevent electric equipment breakdown. The door to the operator’s cabin and to the electrical room shall be locked to prevent unauthorized entry. All belt conveyors shall be emptied before shut down of BWE. The BWE shall be parked at a safe distance from slope failures and water. The BWE operator shall lower the bucket wheel to about 1 m above ground level and shall engage the brakes of the crawler machine before leaving the BWE. All regulations stated in other chapters of this Circular that are applicable to this type of operation shall be followed accordingly. Page | 84 of 133 === dc2018-12-0028-series-of-2018-pages-085.ppm === Rule 588 Rule 589 Rule 590 Rule 591 Rule 592 Rule 593 Rule 594 Rule 595 Rule 596 Rule 597 CHAPTER IV FIRE PROTECTION Section 1: Underground Fire Protection No person shall smoke, carry smoking materials, matches or lighters underground, or smoke in or around oil houses, explosive magazines, or other surface areas where such practice may cause a fire or explosion. The Operator shall institute a program to insure that any person entering the underground area of the mine does not carry smoking materials, matches or lighters. Underground workers shall use only permissible cap lamps for portable illumination. No open flame shall be allowed underground. Warning signs prohibiting smoking and the use of open flame shall be posted to be readily seen in areas or places where fire or explosion hazard exists. Each coal mine shall be provided with suitable firefighting equipment adapted for the size and conditions of the mine and in accordance with the standards of the Bureau of Fire Protection. Portable fire extinguishers used underground shall be either: a. Multi-purpose dry chemical type containing a nominal weight of 5 pounds (2.2 kgs.) of dry powder or, b. Foam-producing liquids with enough expellant to supply the foam. All portable fire extinguishers acquired for use in a coal mine shall have a 2A 10BC or higher rating. At least one portable fire extinguisher shall be provided at each permanent electrical installation whether on the surface or underground. At least one portable fire extinguisher and suitable amount of rock dust shall be provided at each permanent underground oil storage station, Welding, cutting, or soldering underground shall not be allowed. A supply of dry chemical supplemented by one or more fire extinguishers shall be located at strategic points for all electrical equipment underground such as motors, transformers, etc. Fire hydrant with standard length of hose connected to the main water supply system shall be provided at all mine openings where flammable structures exist. 2018 Coal Mine Safety and Health Rules and Regulations Page | 85 of 133 === dc2018-12-0028-series-of-2018-pages-086.ppm === Rule 598 Rule 599 Rule 600 Rule 601 Rule 602 Rule 603 Rule 604 Rule 605 2018 Coa! Mine Safety and Health Rules and Regulations All equipment intended solely for firefighting purposes shall be tested or carefully inspected at monthly intervals, and defective chemical fire extinguishers shall be refilled at least every six (6) months but not more than a year, and the date of the last refill shall be recorded and attached to the fire extinguishers. Each mine shall maintain a second exit to the surface which shall not be too far from the entrance. Underground workers shall be protected against the hazard of all exits becoming impassable through fire or fire gases by one or more of the following methods: a. By fire-proofing the main shaft and shaft stations provided that where there is no fire hazard sufficient to interrupt the use of the main shaft hoist for rescue purposes, such conditions shall be of sufficient compliance; b. By such mechanical control of the air currents as will permit the supply of good air through any shaft or escape by way of reversal of air currents, if necessary; c. By the installation of fire, smoke or gas-proof control door. "Good housekeeping" shall be enforced at all times. Underground transformer stations, battery-charging stations, substations, compressor stations, shops, and permanent pumps shall be housed in fireproof structures or areas. Air currents used to ventilate structures or areas enclosing electrical installations shal! be coursed directly into the return. Other underground structures installed in a coal mine as the Bureau may prescribe shall be of fireproof construction. The Operator of an underground coal mine shall adopt a program for the instruction of all workers in the location and use of firefighting equipment, location of escapeways, exits, and routes of travel to the surface, and proper evacuation procedures to be followed in the event of an emergency. A team consisting of at least five (5) members for each working shift shall be trained in firefighting operations. Fire drills shall be held once a year. As means of informing underground workers of fire, the Operator shall install an approved method of fire alarm warning, and in addition, shall establish a general danger signal by flashes of light bulb or distinct interruptions of the electrical lighting current, or by telephone if such is installed. The same method will be used to advise workers underground of any fire on the surface upon hearing fire alarm siren provided for the purpose. A well-planned evacuation procedure shall be adopted and shal! be followed by underground workers when the fire alarm warning is given. Page | 86 of 133 === dc2018-12-0028-series-of-2018-pages-087.ppm === Rule 606 Rule 607 Rule 608 Rule 609 Rule 610 Rule 611 Rule 612 Rule 613 Rule 614 Rule 615 Rule 616 Rule 617 Rule 618 Rule 619 A copy of the fire rules and emergency measures/plans of evacuation routes for firefighting and evacuation shall be posted at strategic locations in both surface and underground. In case of fire, the first consideration shall be the safety of all workers. Section 2: Surface Fire Protection Buildings, plants, infrastructure and facilities shall be provided with adequate firefighting facilities and equipment. Fire-fighting equipment shall be readily accessible, unobstructed and the location of such equipment shall be conspicuously marked. Fire hydrants shall be placed at a safe distance from buildings in order that a fire could not render them useless. Fire hydrants and water lines shall be tested regularly to insure that they are in proper working condition. Each test shall be recorded and maintained in a log book. The area immediately surrounding an electrical substation shall be kept free from grass, weeds, and brushes which might be set on fire accidentally or intentionally. Fire extinguishers of ABC type shall be provided where inflammable liquids are stored or handled. Fire-fighting equipment shall not be used for any purpose except for that it is intended. Adequate fire alarm devices shall be provided. All equipment such as trucks, power shovels, front-end loaders, bulldozers, etc., shall be equipped with at least one portable fire extinguisher. Fire extinguishers shall be provided at permanent surface electrical installations commensurate with the potential fire hazard at such installation in accordance with the recommendations of the Bureau of Fire Protection. Gasoline or other highly inflammable liquids shall not be used for cleaning machinery parts and grease spots where danger of ignition exists. Flammable liquids shall be stored in accordance with standards of the Bureau of Fire Protection. Small quantities of flammable liquids drawn from storage shall be kept in properly identified safety cans. 2018 Coal Mine Safety and Health Rules and Regulations Page | 87 of 133 === dc2018-12-0028-series-of-2018-pages-088.ppm === CHAPTER V EXPLOSIVES Definitions For the purpose of this Chapter the term: l. [oo 10. ll. 13. 14. 15. 16. 17. "Active workings" mean any place in a coal mine where workers are normally required to work or travel. "Barricaded" means to obstruct passage of persons, vehicle, or flying materials. "Berm" means a pile or mound of material capable of restraining a vehicle. "Blasting agent" means any material consisting of a mixture of a fuel and oxidizer which is used or intended for use in blasting, and cannot be detonated by a No. 8 blasting cap when tested as recommended in U.S. Bureau of Mines Information Circular 8179. "Blasting area" means the area near blasting operation in which concussion or flying materials can reasonably be expected to cause injury. "Blasting Cap" means a detonator containing a charge of detonating compound, which is ignited by electric current, or the spark of a fuse. Used for detonating explosives. "Blasting circuit'' means electric circuits used to fire electric detonators. "Blasting switch" means a switch used to connect a power source to a blasting circuit. "Box-type magazine" means a small, portable magazine used to store quantities of explosives or detonators for short period of time in locations at the mine which are convenient to the blasting sites where they will be used. “Capped fuse” means a length of safety fuse to which a detonator has been attached. “Capped primer” means a package or cartridge of explosives which is specifically designed to transmit detonation to other explosives and which contains a detonator. . “Detonating cord” or “detonating fuse” means a flexible cord containing a core of high explosive. "Detonator" means a device containing a small detonating charge that is used for detonating an explosive, including but not limited to blasting caps, exploders, electric detonators, and delay electric blasting caps. "Electrical Grounding” means to connect with the ground to make the earth part of the circuit. "Explosives" mean any chemical compound, mixture, or device, the primary or common purpose of which is to function by explosion. Explosives include, but are not limited to black powder, dynamite, nitroglycerin, fulminate, ammonium nitrate when mixed with a hydrocarbon, and other blasting agents. “Flash point” means the minimum temperature at which sufficient vapor is released by a liquid or solid to form a flammable vapor-air mixture at atmospheric pressure. "Gassy Mine" means any coal mine where methane accumulations or emissions of 0.25% have been detected within 30 centimeters from any open mine workings. . "Misfire" means the complete or partial failure of a blasting charge to explode as planned. 2018 Coal Mine Safety and Health Rules and Regulations Page | 88 of 133 === dc2018-12-0028-series-of-2018-pages-089.ppm === STI SAYS REAR RARER UNAS, ZAPUGE TORI LAE EERO UEP, PATA RARER BT EPA A STIR TOTS 19. “Permissible Explosives" mean explosives which have been tested and approved by US. Bureau of Mines or the Mine Enforcement and Safety Administration (MESA) as safe for blasting in coal mines provided they are stored, handled and used in accordance with these Rules and Regulations. 20. "Primer" or "Booster" means a package or cartridge of explosive which is designed specifically to transmit detonation to other explosives and which does not contain a detonator. 21. “Safety can” means an approved container, of not over 5 gallons (18.93 liters), having a spring-closing lid and spout cover. 22. “Safety fuse” means a train of powder enclosed in cotton, jute yarn and waterproofing compounds, which burns at a uniform rate; used for firing a cap containing the detonating compound which in turn sets off the explosive charge. 23. “Safety Switch" means a sectionalizing switch that also provides shunt protection in blasting circuits between the blasting switch and the shot area. Section 1: General Provisions Rule 620 The Operator shall strictly comply with republic laws, city or local ordinances in transporting, storing, handling, and using explosives and blasting supplies. Rule 621 Authorization or license from the Philippine National Police (PNP) or other proper authorities shall be required to possess and acquire explosives. Rule 622 The storage, transport and use of explosives and initiating devices at the mine shall be carried out by or under the direct supervision of competent and authorized or licensed person, notably the holder of Foreman/Blaster License. Rule 623 The person in charge of explosives and blasting supplies shall keep the magazine keys and he shall see to it that all proper safety precautions are taken. Rule 624 Only permissible explosives shall be used underground. Rule 625 Explosives and detonators shall be kept in separate containers. Rule 626 Mudcaps or other unconfined shots shall not be fired underground. Rule 627 If lighting is needed inside magazines, only battery flashlight or other approved electric light shall be used. In cases where electric bulbs are used, the same shall be protected with guards. Rule 628 Under no circumstances shall burning oil or chemical lamps, lanterns, candles, torches, matches or any open flames lighting apparatus be used in or around magazines or near explosives. Rule 629 Unauthorized persons shall! not be allowed to loiter near explosives and magazines. 2018 Coal Mine Safety and Health Rules and Regulations Page | 89 of 133 === dc2018-12-0028-series-of-2018-pages-090.ppm === Rule 630 Rule 631 Rule 632 Rule 633 Rule 634 Rule 635 Rule 636 Rule 637 Rule 638 Rule 639 Rule 640 2018 Coal Mine Safety and Health Rules and Regulations Smoking and carrying flammable materials shall be strictly prohibited during transport, handling and storing of explosives, detonators and other blasting accessories. No metal hooks or any metal tool shall be used in handling explosives, except those prescribed by the explosive manufacturer. Shooting or carrying of firearms by unauthorized persons in or around magazines or near explosives shall be prohibited. Explosive shall not be allowed to become wet or be exposed to the weather, or to rough treatment. Detonators or other explosives shall not be carried inside pockets, boots or clothing nor shall they be left carelessly lying around. Packages or boxes of explosives shall not be opened or repacked or re-boxed with any metal tool and in close proximity to other explosives. Explosives or detonators carried anywhere underground in a coal mine by any person shall be in containers constructed of nonconductive material, maintained in good condition, and kept closed. Explosives or detonators shall be transported in special containers; a. In cars moved by means of a locomotive or rope; b. On belts; c. In shuttle cars; d. In others used to transport such explosives or detonators. A quarterly Inventory of Explosive and Blasting Accessories Report shall be submitted to the Bureau within the first ten (10) days following the end of each quarter. In case where a sub-contractor performs the handling, transport, storage and use of explosive, the Operator shall seek the approval of the Bureau of the sub-contract agreement in accordance with applicable Department circulars on sub-contracting. The Operator shall be responsible and accountable for the safety and performance of the sub-contractor, as well as compliance to this Circular. Page | 90 of 133 === dc2018-12-0028-series-of-2018-pages-091.ppm === PR ETA WA AE OTR Rule 641 Rule 642 Rule 643 Rule 644 Rule 645 Section 2: Surface Storage Storage magazine in which more than fifty-seven (57) kilograms of explosives are kept shall be of permanent construction and shall: a. > Have no openings except for entrance and ventilation. Ventilation and wall vents shall be of the offset type, and all vents shall be protected with metal screening, constructed to protect from sparks or bullets as well as to prevent the entrance of persons and animals; Be constructed in conformity with plan and detailed specifications obtainable from the manufacturer of explosive; Be made of non-sparking materials on the inside, including floors; Be located in accordance with applicable PNP guidelines on distances for storage of explosive; Be detached structures and located away from power lines, fuel storage areas, and other possible sources of fire; Be constructed substantially of non-combustible material or covered with fire-resistant material; Be reasonably bullet resistant; Be electrically bonded and grounded if constructed of metal; Be provided with adequate and effectively screened ventilation openings near the floor and ceiling; Be kept locked securely when unattended; Be posted with suitable and conspicuously marked with a bold and reflectorized warning sign of "DANGER EXPLOSIVES"; Be used exclusively for storage of explosives or detonators and kept free of all extraneous materials; . Be kept clean and dry in the interior, and shall be maintained properly; Be unheated, unless heated in a manner that does not create a fire or explosion hazard; Be of "vapor-proof" light fixture type, if illuminated electrically and wiring shall be in conduit, and the light switch is located outside of the building. Explosives in amounts of fifty-seven (57) kilograms or less may be stored as provided in Rule 641 or in box type magazine which shall be of strong construction or in metal magazine which shall be lined with non-sparking materials. Permanent magazine shall not be located closer than sixty (60) meters from any structure or from any mine shaft tunnel or slope opening. Box-type magazine shall not be placed in a building containing highly inflammable materials of which location is less than six (6) meters from open flame or less than two (2) maters from other sources of heat. Magazine used for the storage of detonators shall be of permanent type resistant to weather, fire, theft and bullet. 2018 Coal Mine Safety and Health Rules and Regulations Page | 91 of 133 === dc2018-12-0028-series-of-2018-pages-092.ppm === Rule 646 Rule 647 Rule 648 Rule 649 Rule 650 Rule 651 Rule 652 Rule 653 Rule 654 Rule 655 Rule 656 Rule 657 2018 Coal Mine Safety and Health Rules and Regulations The area surrounding the magazine for a distance of twelve (12) meters shall be cleared of dry grass or leaves, wood, trash or other readily flammable materials. New explosives shall be piled in a magazine in such manner that the older explosives are used first. The floor of explosives magazines shall be constructed of non-sparking materials, preferably wood, with no exposed metal. Loose explosive or blasting supplies shall not be left exposed inside the magazine. Fuse shall be stored in a cool and dry place. Detonating cord shall be stored in an explosives magazine. All explosive magazines shall be provided with double steel doors with strong, double pad locks which are protected with a metallic cover. Explosive magazine shall be provided with double fence of at least 2.4 meters high. The immediate surroundings of explosive magazines shall be provided with electric lights during night time. Only non-sparking tools shall be used in opening boxes of explosives. Explosive boxes or containers shall be entirely emptied of packing materials and paper before they are discarded. Boxes or packing materials showing stains shall be destroyed by burning in the open. Cases or boxes containing explosives shall not be stored in magazines on their ends or sides or stacked more than two (2) meters high. Ammonium nitrate-fuel oil blasting agents shall be stored in a separate explosive magazine. Section 3: Surface Handling and Use of Explosives Explosives shall not be stored or handled in or near residential houses. Explosives shall not be place near "live" electric wires. Vehicle transporting explosives shall comply with the following: a. Inspected to determine if they are suitable for the task from the safety as well as mechanical standpoint; b. Maintained in good condition and shall be operated at a safe speed and in accordance with all safe operating practices; c. Clearly marked with "EXPLOSIVES" sign; d. Provided with a red flag to denote danger and caution; Page | 92 of 133 === dc2018-12-0028-series-of-2018-pages-093.ppm === Rule 658 Rule 659 Rule 660 Rule 661 Rule 662 Rule 663 Rule 664 Rule 665 Rule 666 Rule 667 Rule 668 Rule 669 e. Not be overloaded, and in no case shall boxes of explosives be piled higher than the body; Be properly grounded; Provided with wooden floorings; Not be left unattended; Avoid unnecessary delays or stops; Not be taken inside a garage or shop for repairs and other purposes; Stop before crossing railroad tracks or main highways and then proceed with caution and conform to all other traffic safety measures; l. Not keep the engine idling unnecessarily while they are not moving. The brakes shall be applied. wo pega rh Detonators shall not be transported in the same vehicle where other explosives are carried, Metal, metal tools or inflammable substances or materials shall not be carried in the same vehicle transporting explosives. The transportation of explosives shall be entrusted to competent workers only. No explosive shall be carried on electric locomotives or in a car next to an electric locomotive. Explosives and detonators shall be kept and brought to working places in approved completely separate containers in accordance with safety practices. Capped fuse shall be brought to the working places in separate covered insulated containers distinct from those containing explosives. When vehicles loaded with explosives are parked, the parking brakes shall be applied and the wheels properly blocked. Explosives or detonators shall be transported at times and over routes that expose a minimum number or person. Only the necessary attendants shall ride on or in vehicles containing explosives or detonators. Blasting operations shall be under the direct control of authorized persons only. Areas with charged holes awaiting firing shall be guarded, or barricaded and posted, or flagged against unauthorized entry. Ample warning shall be given before blasts are fired. All workers shall be cleared and removed from the blasting area unless suitable blasting shelters are provided to protect workers endangered by concussion or fly rock from blasting. 2018 Coal Mine Safety and Health Rules and Regulations Page | 93 of 133 === dc2018-12-0028-series-of-2018-pages-094.ppm === Rule 670 Rule 671 Rule 672 Rule 673 Rule 674 Rule 675 Rule 676 Rule 677 Rule 678 Rule 679 Rule 680 Rule 681 Rule 682 Lead wires and blasting lines shall not be strung across power conductors, pipelines, railroads tracks or within six (6) meters of bare power lines. They shall be protected from static or other electrical contact. Substantial non-conductive closed containers shall be used to carry explosives, other than blasting agents to the blasting site. Blasted areas shall be examined for undetonated explosives after each blast and undetonated explosive found shall be disposed of safely. Blasted areas shall not be re-entered by any worker after firing until such time as concentrations of smoke, dust, or fumes have been reduced to safety limits. In secondary blasting, if more than one shot is to be fired at one time, blasting shall be done electrically or with detonating cord. Unused explosives and detonators shall be moved to a safe location as soon as charging operations are completed. When pneumatic loading is employed, before any type of blasting operation using blasting agents is put into effect, an evaluation of the potential hazard of static electricity shall be made. Adequate steps, including the grounding and bonding of the conductive parts of pneumatic loading equipment, shall be taken to eliminate the hazard of static electricity before blasting agent use is commenced. Pneumatic loading equipment shal! not be grounded to waterlines, airlines, rails, or the permanent electrical grounding systems. Section 4: Underground Storage and Use of Explosives Underground safety precautions in magazines, handling and use of explosives shall conform to the general rule. All explosives, detonators, blasting caps and fuses shall be stored above the level of the floor. Underground magazines shall be located in such parts of the mine where they are safe from all mining operation and where accidental explosion shall not prejudice the workers in the mine. Detonators shall be kept separate from the dynamite and in such location that their accidental explosion shall not cause the detonation of the powder. Issuing magazines shall consist of a separate drive or chamber, the walls of which shall be of fireproof material. 2018 Coal Mine Safety and Health Rules and Regulations Page | 94 of 133 === dc2018-12-0028-series-of-2018-pages-095.ppm === Rule 683 Rule 684 Rule 685 Rule 686 Rule 687 Rule 688 Rule 689 Rule 690 Rule 691 Rule 692 Rule 693 Rule 694 Rule 695 Rule 696 Rule 697 Rule 698 Magazines shall be kept securely locked except when it has to be entered by the person in charge. Dynamite and caps must be handled separately when being hoisted or lowered. The supervisors shall see to it that the workers who have duties in connection with the fuse blasting are instructed in proper use of fuses, detonators, the timing and spitting or lighting procedures, and such supervisors shall be duly licensed to handle explosives by proper authorities. No explosives shall be carried at any place within the mine where accidental discharge would cut off the escape of workers working underground. All primers shall be exploded or utilized with in twenty-four (24) hours after they are made. It is prohibited to hang fuse on nails or other projection which cause a sharp bend to be formed in it. Blasting caps shall not be removed from the original containers except when capping the fuses. When supplies of explosives or fuses are removed from a magazine, those that have been stored longest shall be taken first. Inflammable materials shall not be stored with explosives. Explosives shall not be placed near tracks or less than two (2) meters from electric wires or lights. Fuses shall be capped in suitable places outside of the explosives magazine and away from explosives. Any dynamite found in the muck pile shall be placed in a suitable safe place and the matter reported immediately to the supervisor. Where explosives are not used immediately when brought to the working place the same shall be placed in suitable wooden container with hinged tops. It shall be prohibited to issue at any one time more than the sufficient amount of explosives, caps and fuses needed for the blast. Only electric blasting cap shall be used in the mines. The proper tools and equipment shall be made available to the workers using and handling explosives. 2018 Coal Mine Safety and Health Rules and Regulations Page | 95 of 133 === dc2018-12-0028-series-of-2018-pages-096.ppm === Rule 699 Rule 700 Rule 701 Rule 702 Rule 703 Rule 704 Rule 705 Rule 706 Rule 707 Rule 708 Rule 709 Rule 710 Rule 711 Rule 712 Rule 713 Rule 714 Rule 715 The use of oil, grease, or other unapproved substances to waterproof joints between cap and fuse is prohibited. A suitable compound for this purpose can be obtained from the manufacturers of explosives. Primers or primed cartridges shall be made only as recommended by manufacturers of explosives and when in the place of usage. Only non-sparking material puncher shall be used in making primers. Before loading, all drill holes shall be thoroughly cleaned with blow pipe. Only wooden stick shall be used for tamping cartridges in a hole. Only direct and moderate pressure without pounding or punching shall be applied when placing the explosive. At least one (1) blasting cap cartridge inserted in a dynamite stick shall be tamped in the bottom of the hole before loading in other dynamite sticks. At least two (2) workers shall always be at the face when preparing for blasting. No work of any kind shall be done at the blasting area after completion of firing. Before blasting, warnings shall be given to all adjoining workings and guards shall be stationed at all safety branches and approaches to the area. Guards manning the entrance of approaches to a blast area must remain at their posts until blasting is finished. Guards must be informed and shall count the number of blasts. Blasting shall be done only at specified times, preferably at the end of shift or at lunch periods. Blasting at other times shall only be done by special permission of the supervisor in charge of the work. It shall be the duty of the superintendent or the man in charge of the mine to specify and post and instruct the authorized workers regarding the regular blasting hours. Missed holes or suspected missed holes shall be reported to the supervisor who shall in turn report them to the supervisor of the next shift. Blasted faces shall be examined carefully for missed holes and bootlegs containing explosives shall be blasted, before any other work is done in that face. Holes shall not be drilled in or near a known or suspected missed holes or old holes or bootlegs as explosives may still remain at the bottom or crevices of the holes. 2018 Coal Mine Safety and Health Rules and Regulations Page | 96 of 133 === dc2018-12-0028-series-of-2018-pages-097.ppm === F 208 FEY UTA AR ER KA i eeh”, Bale AA EP Rule 716 Rule 717 Rule 718 Rule 719 Rule 720 Rule 721 Rule 722 Rule 723 Rule 724 Rule 725 It shall be prohibited to extract the charge from a missed hole. It shall be re-blasted. In case it is impractical to shoot a missed hole, report it to the supervisor who shall determine whether he can safely unload it with water. The following "Don'ts" in the use of explosives shall be strictly followed: a. Don't use empty explosives cases for kindling. b. Don't permit any paper product used in the packing of explosives to leave your possession. Accumulation of fiber board cases, paper case linens, cartons, or cartridge paper shall be destroyed by burning after they have been carefully examined to make sure they are empty. c. Don't drill a borehole near another hole loaded with explosives. d. Don't load a sprung borehole with another charge of explosives until it has cooled sufficiently. e. Don't store cases of dynamite in such a way that cartridges stand on end. A maximum of seven (7) days’ supply of explosives shall be stored in an issuing magazine, from where required supplies for immediate use shall be distributed by an authorized and competent person. When supplies of explosives and detonators for use in one or more working sections are stored underground, they shall be kept in section boxes or magazines of substantial construction with no metal exposed on the inside, located at least eight (8) meters from the roadways and power lines, in a dry, well rock dusted location protected from the roof falls, except in pitching beds, where it is not possible to comply with the location requirements, such boxes shall be placed in niches cut into solid coal or rock. Explosives and detonators stored in the working places shall be kept in separate closed containers which shall be located out of the line of blast and not less than 15 meters from the working face and 5 meters from any pipeline, power line, rail, or conveyor, except that, if kept in niches in the rib, the distance from any pipeline, power line, rail, or conveyor, shall be at least 2 meters. Such explosives and detonators, when stored, shall be separated by a distance of at least 2 meters. After every blasting operation, an examination shall be made to determine whether fires have been started. Delay connectors for firing detonating cord shall be treated and handled with the same safety precautions as blasting caps and electric detonators. Detonators of different brands shall not be used in the same round. Light and power circuits shall be disconnected or removed from the blasting area before charging and blasting. 2018 Coal Mine Safety and Health Rules and Regulations Page | 97 of 133 === dc2018-12-0028-series-of-2018-pages-098.ppm === Rule 726 Rule 727 Rule 728 Rule 729 Rule 730 Rule 731 Rule 732 Rule 733 Rule 734 Rule 735 Rule 736 Rule 737 Rule 738 2018 Coal Mine Safety and Health Rules and Regulations Section 5: Underground Transportation of Explosives Any conveyance transporting explosives underground shall be clearly marked with word "EXPLOSIVES." Cases of explosives delivered underground shall be in flat cars provided with wooden floorings. A train of cars containing explosives shall be provided with red light in front and at the rear. Electric blasting cap shall be taken underground only in covered, padded and insulated containers. No detonators shall be transported with other explosives except when being carried in a proper container to the face for immediate use. When carrying dynamites and electric blasting caps to the face for immediate use, they shall be placed and carried in separate containers or bags. When explosives are transported on flat carts, adequate protection shall be provided to avoid collision or derailment. Where special insulated cars are provided for transporting explosives by locomotives, they shall be pulled and not pushed. Section 6: Electric Blasting Only electric blasting shall be used in underground operation. Fuse blasting shall only be used in initial development such as: a. Driving along rock tunneling b. Shaft sinking along rock face All entrances to places where blasting is being done by electricity must be guarded from the time the connection to the power circuit is made until the round is fired, if firing is done by underground switch. It shall be strictly prohibited for anyone to blast electrically, unless he has been instructed in the safe standard practice of electric blasting and has qualifications to perform electric blasting and is duly licensed by proper authorities. If electric blasting is controlled from the outside of a mine, a complete check for the number of workers shall be done before firing. Page | 98 of 133 === dc2018-12-0028-series-of-2018-pages-099.ppm === Rule 739 Rule 740 Rule 741 Rule 742 Rule 743 Rule 744 Rule 745 Rule 746 Rule 747 Rule 748 Rule 749 Rule 750 Rule 751 Rule 752 Rule 753 Leg wires of electric blasting caps shall be kept shunted until ready to connect the lead or bus wires. Permanent wiring lead wires and leg wires shall be insulated. There shall be no breaks or bare places in the main lines and connections shall be taped where necessary to prevent short circuits or leak. Wire shall not touch each other or any object that might carry an electric current. Blasting switches, interrupter switches or their equivalent boxes shall be locked and the keys kept by the blaster. Blasting machine shall be kept locked at all times except when shots are to be fired. Before blasting, the blaster shall use an approved circuit tester to check whether the blasting circuit is closed and in the proper condition for the blast, or whether it is open, because of faulty connections or broken wires. Upon returning to the face after blasting, the blaster shall place shunts in permanent blasting line, disconnect, and short the blasting cable or lead wires and roll up the blasting cable when approaching the face. The point of contact with the firing line shall be at a reasonably safe distance from the blast. Blasting lines shall be kept clear from all power and lighting lines and from all grounded pipes, rails, etc. When electric blasting caps are used and all the holes fail to explode, the wires shall be disconnected from the power source and all other safety precautions shall be done before going back to investigate the trouble. All wire connections for electric blasting shall be mechanically and electrically strong to ensure good results. All electric blasting on or near the surface shall cease during thunderstorms and during the approach ofan electrical storm. Al! persons shall retire to a safe place. Adequate priming shall be employed to guard against misfires, increase toxic fumes, and poor performance. At least a two (2) meter air gaps shall be provided between the blasting circuit and power circuit. Power sources shall be suitable for the number of electrical detonators to be fired and for the type of circuits used. 2018 Coal Mine Safety and Health Rules and Regulations Page | 99 of 133 === dc2018-12-0028-series-of-2018-pages-100.ppm === Rule 754 Rule 755 Rule 756 Rule 757 Rule 758 Rule 759 Rule 760 2018 Coal Mine Safety and Health Rules and Regulations Electric circuits from the blasting switches to the blast area shall not be grounded. Safety switches and blasting switches shall be labeled, encased in boxes, and arranged so that the covers of the boxes cannot be closed with the switches in the trough-circuit or firing position. Blasting switches shall be locked in the open position, except when closed to fire the blast. Lead wire shall not be connected to the blasting switch until the shot is ready to be fired. The key or other control to an electrical firing device shall be entrusted only to the person designated to fire the round or rounds. When electric detonators are used, charging shall be stopped immediately when the presence of static electricity or stray currents is detected; the condition shall be remedied before charging is resumed. When electric detonators are used, charging shall be suspended and workers withdrawn to a safe location upon the approach of an electrical storm. Blasted areas shall not be re-entered by any person after firing until such time as concentrations of smoke, dust or fumes have been reduced to safe limits. Page | 100 of 133