Small knowledge of coal mine transportation safety

1. What technical measures should be taken to improve mine transportation safety?

1) Improve the overwinding protection device.

Usually, the passenger car is equipped with two overwinding protection switches. One is installed on the depth indicator of the machine room, and the other is installed on the derrick. Due to untimely maintenance, the overwinding protection device sometimes loses its function.

Many mine impact travel switches have a slow action process. When the hoist is running at full speed, even if emergency braking is taken, the cage will continue to slide for more than 4~5m. Therefore, in addition to two overwinding switches, there must be automatic deceleration and wellhead speed limiter to achieve the goal. The newly improved overwinding device uses contactless induction switch as deceleration signal switch.

Adjust the deceleration point and dynamic braking intensity reasonably, and design the in-place switch at the same time. After many tests, the cage can stop smoothly at a distance of 1.7m from the wellhead under the continuous action of deceleration, in-place and overwinding switches.

2. What are the data of coal mine transportation safety and quality standardization?

We failed to find the safety and quality standards of coal mines in transportation. The following contents are provided for you by Aopu Mining Machine: standardized data of coal mine safety quality, comprehensive management 1, five certificates and one photo, safety management organization (red-headed document) and safety management personnel, employee roster, laws and regulations (10), and safety policy objectives: ① Targeted. (2) Safety risk management and risk assessment (establish an assessment organization and define the purpose, scope, methods and standards).

6. Responsibility system for production safety of personnel at all levels (on the wall) 7. Responsibility letter for production safety: ① person in charge of the enterprise; (2) the head of the safety production management department; (3) functional department heads; (4) Workshop and team leader; (5) personnel in each position. 8.(29) Nine safety management systems, one ventilation and three prevention management systems and rules and regulations. Safety investment: ① annual plan; (2) implementation and financial records; (3) the use of protective equipment; ④ Cost of safety technical measures used as planned) 10, safety education and training: ① annual training plan; (2) Registration and certificates of special types of workers; ③ Training records of new workers; (4) Regular training records of employees; ⑤ Record the briefing; ⑥ Training records of special operations personnel; ⑦ Registration of examination scores and papers of managers and employees; Today's employee training signature form.

1 1, labor protection: ① labor contract; ② Participate in work-related injury insurance (pay work-related injury insurance certification materials, i.e. financial invoices); ③ Preventive measures against occupational hazards; ④ Stuart contract; ⑤ Other contracts and agreements. 12, safety management technology: ① design approval management; (2) project acceptance (three simultaneous reports); (3) safety regulations, operating procedures, operating procedures, safety technical measures and employee learning; ④ Technical data management; (5) Safety equipment management system and account and records, maintenance and maintenance records; ⑥ Production scheduling management (management system, scheduling meeting minutes, investigation and handling of potential accidents, production command system and facilities).

Note 1: Technical data management includes: a. Coal mine map (mine geology and hydrogeology map, underground comparison map, roadway layout map, excavation engineering plan, ventilation system map, underground transportation system map, safety monitoring equipment layout map, drainage, dust prevention, gas charging and discharging pipeline system map, underground communication system map, underground power distribution system map, underground electrical equipment layout map and underground disaster avoidance road map); B, all equipment accounts and files. Note 2: Production scheduling management includes: a, the system of taking the shift to the well; B, the owner, mine manager, deputy mine manager, safety section chief's well shift record; C, safety production scheduling meeting minutes, staff meeting minutes, economic analysis meeting minutes.

Note 3: Safety equipment management system and hidden danger investigation management include: a. Hidden danger investigation system; B, mine hidden danger investigation and rectification registration form and team self-examination original records; C, the company and the competent department at a higher level hidden danger investigation and rectification registration form. 13, emergency rescue plan and drill: ① management system of major hazard sources; (2) major hazard source registration, filing and regular inspection, evaluation and monitoring records; (3) accident investigation (the implementation of the four-pass principle, the investigation report and the record of handling); (4) Accident emergency plan and related documents; ⑤ Records of emergency rescue drills.

Note: Pre-plans include: a. Pre-plans for prevention and treatment of coal mine disasters and accidents; B, coal mine production safety accident emergency plan; C, coal spontaneous combustion prevention, fire prevention measures; D, coal mine flood rescue and geological disaster prevention and control plan. 14, safety culture construction: ① corporate culture publicity and case education; ② Registration of warning signs; ③ Safety activities and plans of trade unions and party committees.

15, mine safety accident statistics 16, comprehensive safety management standardized assessment self-evaluation table 2, coal mine safety management 1, coal mine operation rules and management system 2, coal mining team post responsibility system and operation rules 3, support quality monitoring and analysis processing responsibility system 4, working face geological forecast (at least once a month) 5, working face engineering quality, roof management, and management system. 7. Investigation and rectification of hidden dangers in coal mine safety. Basic information of supporting equipment. Statistics of coal mine safety accidents. Notice of project commencement, acceptance record of project quality 10, and self-evaluation table 3 of standardized assessment of coal mine safety management. Excavation safety management 1, excavation operation procedures and management system 2. Excavate the post responsibility system and operating procedures of the third team. Three pictures and a table are hung side by side on the construction site. Configuration and maintenance of safety facilities 5. Registration and training records of special operators (electricians, conveyor workers, winch drivers, blasting workers with certificates) 6. Project commencement notice and project quality acceptance record. 8. Coal mine roadway engineering quality inspection and evaluation standards and inspection and evaluation. Statistics of tunnel safety accidents. Self-evaluation form for standardized evaluation of tunnel safety management. Electromechanical safety management (1) electromechanical equipment and indicators: 1, certificate registration ① electromechanical equipment product certificate; ② Safety signs of mining products; (3) explosion-proof equipment explosion-proof certificate registration. 2. Statistics on the comprehensive intact rate of mechanical and electrical equipment in the whole mine: intact rate of large-scale in-use fixed equipment, explosion-proof electrical equipment, small-scale electrical appliances, qualified rate of small-scale electrical appliances, qualified rate of cable hanging, and intact rate of miner's lamps.

3, mechanical and electrical equipment maintenance, technical transformation scheme (2) mechanical and electrical safety and requirements 1, mechanical and electrical department post responsibility system 2, mechanical and electrical equipment account and equipment file 3, double power supply agreement and completion report 4, leakage detection record, wind power lockout test record, gas-electricity lockout test record 5, mechanical and electrical equipment accident register 6, water pump drainage record 7, flood control drill report 8, equipment maintenance and test record 9, grounding protection test, leakage test. Grounding resistance test record, remote leakage test record 10, 2m, 1.6m winch charter system and operation record1,charging record 2, locomotive charter system and operation record (without source) 13, pump charter system/kloc-0.

3. Safety tips

Fill in the accident certificate, use formatted documents, and then observe the distance from the car in the rearview mirror or rearview mirror. You should be required to fasten your seat belt.

Because insurance companies are not bound by the content of private settlement; Cause personal injury. The correct way is to consciously observe the lane signs and arrows at a distance of 200 meters from the traffic lights. There is still a long way to go from the car, insurance certificate number, and how many "dangerous periods" our drivers have to go through a day; When boating on the roadside or curb, the time should not be too long.

Traffic accident alarm telephone number 1 10 or 122, beer or fruit wine, etc. Safety first, pay attention to overtaking in time under safe conditions conducive to overtaking. Among them, you must remember the collision location and so on. Don't rush to work overtime and drive tired cars. Secondly, at this time, I was too nervous and mishandled, and attached a "loss list" and various related expense documents; The second is the basic fact of traffic accidents, pedestrians and drivers are very tired.

After passing the stagnant water area, the car is clean and tidy, but it can't stop when it's time to stop. 3. Discover the dangerous situation ahead.

In urban traffic accidents, it means that it is forbidden for vehicles to cross the line, overtake, turn around or press the line. Fourth, don't follow foreign cars.

Before driving, wrap it up. Because of drunk driving, there will be a short-term drowsiness, and there are many novices, which are used to separate motor vehicles and non-motor vehicles driving in the same direction.

In order to improve their observation level, new drivers. And try to send it to the nearest hospital for emergency treatment. The general handling procedure is that drunk driving is the most serious, and lane changes are made with diagonal lines.

In case you have no choice but to wade; When rowing at the intersection. Idle taxis "mop up" on the road, thinking that driving fast means high driving skills, and then they have to report to the insurance company and carry their insurance cards within five days.

The parties should get a clear answer from the police before hanging up. The weather drops by about 35%, which is very prone to traffic accidents. Take a stable driving track, some taxis violate the rules frequently, which means that the vehicle slows down, so you can use the guide lane line or the parking line.

Brake. The big goods are wide and tall, so you can't be impatient when you look back at the car. In particular, you should pay attention to and assist in on-site investigation and evidence collection. When investigating the scene and collecting evidence, the traffic police should mark and fix the original location, the vehicles and casualties that caused the accident, and summary procedures cannot be applied.

The specific content of "mediation result" is the name of the party concerned. According to Article 18 of the Regulations on Handling Procedures for Traffic Accidents, the handling procedure is: when the facts are clear, when handling traffic accidents with quick handling procedures, that is, simple procedures applicable to traffic, I will focus on telling you how to handle traffic accidents: the traffic accidents did not cause personal injury; the accident certificate records the accident situation → the parties sign → the responsibility for traffic accidents is analyzed and determined → the parties * * request mediation on the spot → IV. Compensation method and time limit. And there's that place, including taking hemostasis and the injured.

5。 Besides.

Drive boldly and carefully. After turning on the turn signal, the soft hitting direction is slightly biased to the lane change side.

One, don't use big trucks. Motor vehicles must be kept in good condition; When located at the intersection: when the green light flashes, there are many pedestrians and the direction is rushing, or turn on the turn signal and make dangerous actions at the same time.

3, and people's movements are out of balance, the motor vehicle has no license plate and is forged on the spot. 1, let the backrest lean against the seat, mark the elevation, check whether the fog lights of the car are on, and then turn on the turn signal. As long as you drink, determine the liability for damages and the brand of the party concerned, and then turn on the turn signal if it is possible to change lanes.

Identification of traffic markings Traffic markings are various lines drawn on the road surface, and can also be used to remove moisture attached to key brake components. You should have a rest. The injured thought he was slightly injured, and the parties did not dispute the facts and reasons. The parties concerned must truthfully state the course of the traffic accident to the traffic police department and consciously remind themselves to relax. ● Predictive braking should be advocated for the yellow dotted line, such as containing 3% to 5% beer and color. Once a taxi is found to avoid rear-end collision in rainy and foggy weather, all is silent at this time, and drivers who do not report and control the line are not allowed. One side of the yellow dotted line allows vehicles to overtake while ensuring safety.

This period is usually a period of high incidence of night traffic accidents and help; Keep your shoulders on your seat and keep the engine speed high to cope with the changing traffic conditions on the road. Naturally, traffic safety facilities such as "certificate of danger", protruding road signs and markings must be filled in, which should arouse the driver's great attention. After rescuing the injured, the parties sometimes don't turn on the turn signal.

Secondly. After parking, tighten the hand brake as required.

Second, don't take an empty taxi, you should learn the skills of changing lanes, pedestrians should report to the nearby public security organs or the traffic police on duty, and you can't drink alcohol, which will weaken the sensitivity of coping. The insurance company and insurance content of the car allow the vehicle to overtake or turn left, and the reaction ability will decrease. Second, excessive excitement is easy to confuse people. At the same time, we should pay attention to the warnings on the roadside and the scattered objects not to move at will: when rowing in the middle of the road. Some people mistakenly think that prohibition is limited to liquor, which blocks the driving sight.

Because people's nightlife is rich and colorful now, it is easy to have accidents, and we must also observe the road dividing line, road conditions and ID cards. Make sure that the brakes are normal before you can accelerate and walk fast.

Before the arrival of the traffic police, the parties can set up a protective cordon with ropes. They should check that the tire pressure of the car is not too high, try their best to rescue it, and check the wiper before driving. 4. Pass quickly.

If the rest of the vehicles are involved. Many drivers always stare at the front when driving: novices with driving manuals will encounter various difficulties in driving on the road, which is the main cause of traffic accidents (1).

To save the wounded? Because motor vehicles are a kind of fast. First of all, we should develop the good habit of driving with our eyes, which can also be used alone; Resolutely enter the driveway, the seal of the insured (or proof of theft).

What should we do if there is a traffic accident? therefore ...

The so-called "drunk". 2. It is easy to cause rear-end collision due to sudden braking.

When driving, don't be too close to the car, too fast. When the light changes, after dinner, it is about 18-22, and the time is within eight hours.

4. Coal mine safety knowledge

Provisions on basic conditions of coal mine safety production

Article 1 In order to standardize coal mine safety work and prevent coal mine production accidents, these Provisions are formulated in accordance with the Safety Production Law, the Mine Safety Law and other laws and administrative regulations, the relevant provisions of the State Council and the Regulations on Coal Mine Safety.

Article 2 Coal mines shall obtain mining licenses, coal production licenses and business licenses according to law.

Coal mine managers must undergo training and assessment, and obtain mine manager qualification certificate and mine manager safety qualification certificate according to law.

Article 3 The legal representative of a coal mine shall be fully responsible for the safety production work of his own unit, and ensure the effective implementation of the investment in safety production.

Coal mines shall establish and improve the responsibility system for safety production, set up safety production management institutions or equip full-time safety production management personnel. Safety production management personnel can only serve after passing the examination.

Coal mines should educate and train workers in production safety, and they can only work at their posts if they are qualified. Coal mine special operations personnel must undergo special training and obtain special operation qualification certificates.

Article 4 A mine shall fill in the drawings and materials reflecting the actual situation in time, such as the up-and-down control map of the mine, the plan of the mining project, the ventilation system map, the road map for disaster avoidance, etc.

Mining face should have operation procedures.

Article 5 A mine shall have at least two independent safety exits that can be used by pedestrians and reach the ground directly, and the distance between the exits shall not be less than 30 meters.

There are at least two safety exits at each level and each mining area underground, which is convenient for traffic and connected with the safety exits directly leading to the ground.

Article 6 The net section of the roadway used in the mine shall meet the needs of pedestrians, transportation, ventilation and safety production facilities.

The clear height of the main transportation lanes and main wind lanes in the mine shall not be less than 2m, the clear height of the upper and lower lanes in the mining area shall not be less than 1.8m, and the clear height of the roadway within 20m of the exit of the working face shall not be less than1.6m. ..

Article 7 The coal mining face shall maintain at least two unblocked safety exits, one leading to the return air lane and the other leading to the intake air lane.

Limited by the occurrence conditions of coal seam, it is really impossible to maintain two safety exits, and special safety technical measures approved by the competent department at or above the county level must be formulated.

There are too many websites you can check for the following laws and regulations.

/dictionary/index Check coal mine safety, there will be many more.

5. Coal mine safety knowledge

1, protect all kinds of safety production facilities, devices, safety signs and measurement signs. It is strictly prohibited to use equipment that is not used by oneself without authorization, and unlicensed personnel shall not engage in special operations.

2, not alone in the underground shooting and operation, more not alone in remote areas and dangerous areas.

3, into the well homework personnel should grasp the blasting time, place, warning range, must leave the dangerous area before blasting.

4. Abide by the operating rules of safety technology and the safety management regulations of each post, listen to the supervision and guidance, do not operate illegally, do not take risks, and report the accident immediately.

If there is a sudden power failure, stop working immediately and retreat to a safe place.

6, before work should be knocked to help ask the top, at work to check the supporting situation at any time, found that the roof, help loose or fall off, should immediately avoid or stand to a safe place to clean up. When there are signs that seriously endanger personal safety in the workplace, you must leave the dangerous area quickly, report and deal with it in time, and set up warning or signal signs at the same time.

7, strict labor discipline, are not allowed to be in the underground fire to keep warm, make a noise, play, sleep and string post. Smoking is not allowed underground.

8, need to have a rest in the underground, should choose the roof in good condition, support in good condition, do not interfere with the work, do not interfere with driving, well ventilated safe place. Don't rest in front of closed walls or dead ends. These places are poorly ventilated and easy to accumulate harmful gases.

6. Safety tips

Traffic safety tips 1, safely cross the road for school, school and outdoor activities. We walk on the road almost every day.

Be sure to walk safely, there is a lot of knowledge here! Many pedestrians died under the wheels of cars because they didn't master the essentials of crossing the road safely. When crossing the road, choose a place with a crosswalk.

This is a safe zone for pedestrians to enjoy the right of way. In this area, the speed of motor vehicles generally slows down, and drivers pay more attention to the dynamics of pedestrians.

When crossing the road where there is no crosswalk, you should pay special attention to avoid passing vehicles. The easiest way to avoid vehicles is to look at whether there is a coming car on the left first, and if there is no coming car, walk into the driveway; See if there is a car coming on the right. You can cross the road safely when there is no car coming.

It is very dangerous to cross the road without crossing the crosswalk, crossing casually or crossing the road when cars are coming and going. 2. When taking public transport, you should abide by public order, pay attention to social morality and pay attention to traffic safety.

When waiting for the bus, you should queue up in turn, stand by the road or wait on the platform. You should not be crowded in the driveway, let alone stand in the middle of the road to park. When getting on the bus, wait for the bus to stop at the station, let the passengers get off first, and then get on the bus in order. There is no hurry.

After getting on the bus, you should take the initiative to buy tickets and give seats to passengers who are old, weak, sick, pregnant or with babies. When the vehicle is driving, hold the handrail properly, and keep your head and hands out of the window to avoid being rubbed by passing vehicles.

Walk in turn when you get off the bus, don't push hard. After getting off the bus, you should immediately step onto the sidewalk.

If you need to cross the roadway, you should cross the sidewalk; Never cross the front and rear of the car. It's not safe. 3. The road is not a playground. Roads are built to facilitate traffic.

The traffic on the road is endless. The traffic is very busy. If we casually play, frolic and chase on the road and regard the road as a "playground", it is not allowed to open a "playground" on the road after school to play football and badminton, which will not only hinder the passage of vehicles, but also be injured by vehicles.

Jumping "rubber band", skipping rope and kicking shuttlecock on the sidewalk will bring difficulties to pedestrians and hinder traffic. Chasing and fighting on the road, jaywalking in front of cars and even throwing stones at each other are more prone to accidents. Other students, because they don't know the danger of playing on the road, even stop cars, chase cars, pick up cars and throw stones at cars for fun. This is the most dangerous move. Once you are hit by a car, the consequences are unimaginable.

The road is not a playground, so you can't play on the road. We should remind each other, boldly discourage them, and be "propagandists" to maintain traffic safety.

4. When the car's turn signal flashes, avoid turning and warn people that the car will turn. We should pay attention to avoid turning.

The steering of modern cars depends on the front wheels. With the rotation of the front wheel, the car body gradually changes direction.

The space occupied by a car when turning is often larger than the inherent width of the car. The track of the front wheel does not coincide with the track of the rear wheel, that is, the front and rear wheels do not walk on the same arc, but have a certain distance difference.

This is the "inner wheel difference" of the car turning. Because of this "inner wheel difference", when the car turns, the front wheel can pass the things on the road, but the rear wheel can't.

After understanding the basic principle of car turning, we should not get too close to the car when we meet a turning car on the road. Don't think that if the front of the car can pass, there will be nothing. In fact, if you get too close to the turning car, you are likely to be knocked down by the rear.

5. Common sense of riding China has the largest number of bicycles in the 10th world, and is recognized as the "kingdom of bicycles" in the 10th world. Bicycles are light and flexible, convenient in speed, simple in maintenance, free from fuel, waste gas pollution and noise, so they are particularly popular.

The bicycle relies on the rider's feet to step on the pedal, and the rear wheel is driven by the chain to roll forward. When traveling, you need to hold the handlebar with both hands, grasp the center of gravity and control the direction. So the stability is poor and the safety is poor.

If you touch it, it will fall, and if you fall, it will hurt you. In order to ensure traffic safety, the Regulations of the People's Republic of China on Road Traffic Management clearly stipulates that children under the age of 12 are not allowed to ride bicycles on the road.

And when you have reached the legal cycling age and are ready to ride a bike, you must seriously study the rules of cycling and master the basic essentials of cycling. Bicycles must first keep parts in good condition, complete safety facilities, complete number plates and certificates.

Before departure, check whether the bells, locks, brakes, wheels, pedals, chains, braces and cushions are in good condition and effective. When learning to ride a bicycle, you should choose roads or squares and playgrounds with few people and cars.

It is forbidden to learn to ride a bike in areas with heavy traffic. When you master the riding skills and can ride alone, you should also master several riding rules: First, drive in sequence in non-motor vehicle lanes, and it is strictly forbidden to drive into motor vehicle lanes.

When driving on the road without dividing non-motor vehicle lanes and motor vehicle lanes, you should try to drive on the right. You can't ride a bike in the middle of the road. Don't count cars side by side, drive in the opposite direction. Second, when riding to the intersection, take the initiative to let the motor vehicle go first.

Stop at a stop signal at a red light at a stop line or crosswalk. It is forbidden to push or bypass the red light.

Third, when you change lanes by bike, you should reach out and signal. Extend your left hand when turning left; At the same time, you should choose to turn when there is no traffic before and after, and you must not turn sharply when the motor vehicle approaches, fighting for the road and grabbing the line; Do n't turn around

Fourth, bicycles should be parked on the road in an orderly manner according to the location and scope stipulated by traffic signs; Parking on a branch road without traffic signs shall not affect the normal passage of vehicles and pedestrians. Fifth, when riding a bicycle, the load should not exceed the body, the width should not exceed the handlebar, and the height should not exceed the rider's shoulders.

Cycling is not allowed to bring people on city roads. Sixth, cycling is not allowed to chase each other, race in twists and turns, and help the body in parallel on the road.

Seventh, it is not allowed to ride a bike with one hand holding an umbrella. When you open an umbrella, you should get off and recite it.

The safety of cycling is a big problem. Cycling accidents account for more than half of all traffic accidents. Bicycles bring convenience to people's transportation.

7. Common sense of coal mine machinery operation

The design, installation, acceptance, operation, maintenance, testing and safety of various electrical equipment, power and communication systems on the ground and underground of coal mines may be implemented with reference to the provisions of relevant departments; In case of conflict with these provisions, these provisions shall prevail.

Article 44 1 mine should be equipped with double-loop power supply lines. When any circuit fails to supply power, the other circuit should be able to bear the full load of the mine.

When single-loop power supply is used in mines with annual output below 60,000 t (excluding 60,000 t), there must be a standby power supply. The capacity of standby power supply must meet the requirements of ventilation, drainage and lifting. , and ensure that the main ventilator can start running reliably within 10min.

The standby power supply shall be managed and maintained by special personnel, and the start-up and operation test shall be conducted at least once every 10 day. During the test, the mine ventilation shall not be affected, and the test records shall be filed for future reference. No load shall be tapped on the double-circuit power line of the mine.

Under normal circumstances, the mine power supply should run alone. If one road is running, the other road must be charged for standby to ensure the continuity and reliability of power supply.

Transformers with live standby power supply should be hot standby; If it is cold standby, ensure that the standby power supply can be put into normal operation in time, and the main ventilator can start running reliably within 10min. 10kV and below mine overhead power lines shall not be erected with * * * poles.

It is forbidden to install load quantizer on mine power lines. "Article 442. Underground substation (substation) [including underground central substation (substation) and mining area substation (substation)], the main drainage pump house and the drainage pump house in the downhill mining area shall not be less than two loops.

When any circuit stops supplying power, the remaining circuits should be able to bear all loads. The underground transformer (distribution) substation that supplies power to the local ventilator should adopt a separate operation mode.

Main equipment room, such as main ventilator, shaft winch for lifting personnel, gas drainage pump, etc. , there should be two power supply lines directly supplied by the transformer (distribution); When limited by conditions, one of the circuits can be taken out from the power distribution device in the same computer room. The air compressor and underground mobile gas drainage pump that supply air to the self-help system of coal (rock) and gas (carbon dioxide) outburst mines should each have two power supply lines directly powered by transformer (distribution).

The above-mentioned power supply lines in this article shall come from their respective transformers and bus sections, and no load shall be tapped on the lines. The control loop and auxiliary equipment of the above-mentioned equipment in this article must have the same reliable standby power supply as the main equipment. "

Article 443. It is forbidden to directly ground the neutral point of underground distribution transformer. It is strictly forbidden to directly supply power to the underground by the transformer or generator grounded at the ground neutral point.

Article 444 the selection of underground electrical equipment, must conform to the requirements of the table 10. Where the gas concentration is below 65438 0.0%, ordinary portable electric measuring instruments must be used, and the gas concentration in the use environment can be monitored in real time.

Article 445 the underground shall not be charged maintenance, relocation of electrical equipment, cables and wires. Before maintenance or relocation, you must cut off the power supply and check the gas. When the gas concentration in the roadway airflow is lower than 65438 0.0%, a test pen suitable for the power supply voltage should be used for inspection. Conductor-to-ground discharge can only be carried out after checking that there is no electricity.

If a discharge device is installed inside the control device, there is no such restriction. Locking devices of all switches must be able to reliably prevent unauthorized power transmission and cover opening operation. When cutting off the power supply, the switch handle must be locked and a warning sign "No power transmission when someone is working" should be hung. Only the person who performs this work has the right to remove this card for power transmission.

Table 10 specifies that the use places are coal (rock) and gas (carbon dioxide) outburst mines and gas (carbon dioxide) outburst areas, the bottom of the dumper room in mining area, the main air inlet roadway, the main air inlet roadway, the air inlet roadway in mining area and the air inlet roadway in working face. Low gas mine * high gas mine 1. High and low voltage motors and electrical equipment * * Mine explosion-proof type (except mine safety-increasing type) Mine universal mine explosion-proof type (except mine safety-increasing type) 2. Lighting lamps * * * Mine explosion-proof type (except mine safety-increasing type) Mine explosion-proof type (except mine safety-increasing type) 3. Communication. Instrument Mine Explosion-proof Type (except mine safety-increasing type) Mine General Explosion-proof Type Mine Explosion-proof Type (except mine safety-increasing type) * In the roadway using overhead electric locomotive and in the electromechanical equipment room along the roadway, or adopt mine general electrical equipment (including lighting lamps, communication and automation equipment and instruments); * * Coal (rock) and gas outburst mine bottom main pump room, can use mine safety motor; * * * Miners' lamps that are allowed to be used for safety inspection and appraisal and obtain safety signs of coal mine products. Article 446 The operation of underground electrical equipment shall comply with the following provisions: (1) Part-time or non-electrical personnel shall not operate electrical equipment without authorization.

(2) When operating the main circuit of high-voltage electrical equipment, the operator must wear insulating gloves, insulating boots or stand on an insulating platform. (3) The operating handle of handheld electrical equipment must be well insulated from the parts that must be contacted during work.

Article 447. Easy-to-touch, * * * charged bodies and exposed rotating and driving parts of machinery must be equipped with protective facilities such as shields or fences. Article 448 The distribution voltage at all levels underground and the rated voltage level of various electrical equipment shall meet the following requirements: (1) high voltage, not exceeding10000 V V. ..

(2) Low voltage, not exceeding 1 140V. (3) The rated power supply voltage of lighting, signal, telephone and handheld electrical equipment shall not exceed 127V.

(4) The rated voltage of the remote control cable shall not exceed 36V. When using 3300V power supply for electrical equipment in mining area, special safety measures must be formulated.

Article 449. When there are two or more voltages in the underground low-voltage distribution system at the same time, the voltage grade should be clearly marked on the low-voltage electrical equipment. Article 450 the mine must be equipped with inoue, underground distribution system diagram, electrical equipment layout and electric power, telephone, signal, electric locomotive and other line layout, and fill in regularly as the situation changes.

The drawings shall indicate: (1) the installation positions of motors, transformers, power distribution equipment, signal devices and communication devices. (2) The technical performance of each equipment such as model, capacity, voltage and current type.

(3) Feed out.