Effects of Electric Current on the Human Body.

All fire prevention and fighting activities must first be carried out and resolved by on-site forces and means.

- Fire and explosion prevention principles.

If the three elements of combustibles, oxidizers and heat sources are separated, fire and explosion cannot occur. The basic measure in fire prevention is to strictly manage and safely use combustibles, explosives, heat sources and fire and heat generating equipment and tools, ensuring fire prevention safety conditions. Regularly inspect to detect loopholes and shortcomings in fire prevention and take timely remedial measures.

- Explosion proof principle

Reduce the burning rate of burning materials to a minimum and quickly disperse the heat of the fire to the outside.

- Fire fighting measures and methods

+ Basic measures in fire fighting

Quickly mobilize forces and means to immediately extinguish the fire. Focus on rescuing people, saving property and preventing the fire from spreading.

Unified command and control in fire fighting

+ Fire fighting methods

According to the principles of fire and explosion prevention, we have the following measures:

Cooling by introducing heat-absorbing fire extinguishing agents into the fire

Dilute the concentration of combustibles and oxidizers by spraying non-reactive gases into the combustion zone such as inert gases, nitrogen, CO2, etc.

Prevent contact of combustible material with oxygen by spraying foam or fire extinguishing powder.

1.4. Industrial ventilation.

1.4.1. Purpose of industrial ventilation.

To minimize harmful forms such as heat, dust or harmful gases and vapors

a. Heat-resistant ventilation.

Organize air exchange between inside and outside the house, bring cool, dry air into the house, push hot, humid air out, create optimal microclimate conditions

Optimization is a necessary requirement for both houses and industrial production enterprises. However, with only conventional ventilation measures without using air conditioning techniques, it is impossible to simultaneously control all three factors of temperature, humidity and wind speed. Anti-heat ventilation is only to remove excess heat generated in the factory and keep the air temperature at a possible limit depending on the temperature of the outdoor air. At locations with high labor intensity or at workplaces near sources of high temperature radiation, people arrange fan systems with high wind speed (2 - 5m/s) to cool the air.

b. Ventilation to remove dust and toxic fumes.

At sources of dust or harmful gases, it is necessary to arrange a system to suck in polluted air to discharge it outside. Before discharging, it may be necessary to filter or remove all toxic substances in the air to avoid atmospheric pollution, and at the same time organize air exchange, bringing in clean air from the outside to compensate for the air that has been discharged. This amount of clean air must be enough to dilute the remaining dust or toxic gases so that their concentration is reduced below the permissible level.

1.4.2. Ventilation measures.

a. Natural ventilation.

Ventilation is a case where the circulation of air from outside into the house and from inside out is achieved thanks to natural factors such as excess heat and wind.

Under the effect of the heat, the air above the heat source is heated and becomes lighter than the surrounding cool air. That hot and light air forms a stream that rises and escapes through the upper door. At the same time, the surrounding cool air in the workshop and the cool air outside enter the house through the lower doors to replace the hot air rising. A part of the rising air gradually cools down and sinks to the bottom to mix with the cool air coming in from the outside, creating a circulating movement in the upper corners of the house space.

Thus, thanks to the heat source, air exchange is formed between the inside and outside of the house, so that excess heat generated in the house escapes outside.

In case there is wind outside and the wind blows directly into the house, then on the front of the house the wind pressure has a positive value called the windward side, and on the back of the house the wind pressure has a negative value called the leeward side. If the windward side and

If the leeward side is open, the wind will blow through the house from the high pressure side to the low pressure side. As a result, we still have air circulation between the inside and outside of the house. In the two cases of natural ventilation mentioned above, by properly arranging the air inlets and air outlets, as well as by constructing doors with openable shutters to act as flow guides and changing the door area, we can control the direction and flow of air exchange as desired, so that the air flow blows everywhere in the workshop's working area. Therefore, people also call the above ventilation cases organized natural ventilation.

Unorganized natural ventilation: is the case when air enters the house through open doors or cracks, gaps in walls, ceilings, sliding doors with uncontrollable flow and direction.

b. Artificial ventilation.

It is the case of using a fan to transport air from one place to another. By using a fan and a pipe connected to it, people can take clean air from outside and blow it into the house or suck dirty, hot, toxic air from inside the house out.

Depending on specific conditions, a project can arrange both a blowing system and an exhaust system or only one of the two systems.

According to the scope of action of ventilation systems, they are divided into general ventilation and local ventilation.

* General ventilation: Is an inlet or exhaust ventilation system that has an effective range in the entire space of the workshop. It must be able to remove excess heat and toxic substances emitted in the workshop to bring the temperature and toxic concentration in the entire space of the workshop below the allowable level. General ventilation can be natural or artificial.

* Local ventilation: Is a ventilation system that has a range of effects in each separate narrow area of ​​the workshop. The local ventilation system can also be a local blowing system or a local exhaust system.

c. Emergency ventilation.

In factories where the technological process involves a lot of flammable and explosive toxic substances that can pollute the environment, people arrange a backup ventilation system in case of an accident. In case of an accident, all workers must use anti-toxic gas equipment and quickly leave the dangerous area.

The emergency ventilation system must be activated immediately to remove all the toxic air and release it outside. The system's on/off switch must be located in an easily accessible location and may be outside the workshop.

The emergency ventilation system must be a mechanically exhausted general ventilation system so that the air in the emergency room cannot spread to adjacent rooms, and conversely, clean air from outside and from adjacent rooms can only flow in to replace the polluted air that has been exhausted.

1.4.3. Filtering industrial emissions.

Many factories and plants that produce chemicals, such as paint and soap factories, emit a quantity of gases and vapors that are harmful to human health, animals and plants. Therefore, to ensure a clean environment, industrial emissions must be filtered to allowable concentrations before being released into the atmosphere. There are many methods of cleaning emissions:

- Condensation method: Only applied when the partial vapor pressure in the gas mixture is high, such as when it is necessary to ventilate equipment or safety valves. Before releasing the gas, it must be passed through a condenser for cooling. This method is not economical so it is rarely used.

- Catalytic combustion method: To form CO2 and H2O, all organic substances can be burned, except for exhaust gases from organic synthesis plants, petroleum processing plants, etc.

- Absorption method: Silica gel is often used to absorb toxic gases and vapors. Activated carbon of various types can also be used, often used to clean very toxic organic substances.

Target

Chapter 2 Electrical Safety

- Explain the operating principles of electrical safety equipment/systems

- Accurately present electrical safety parameters according to permitted standards

- Accurately present measures to ensure electrical safety for people.

- Accurately analyze cases that cause electrical accidents

- Install equipment/systems to protect electrical safety in industry and civil use.

- Provide first aid to victims of electrical accidents with proper technique and safety.

- Promote positivity, initiative and quickness in work

Main content

2.1. Some basic concepts of electrical safety.

2.1.1. Effects of electric current on the human body.

When people come into contact with voltage elements, electric current will run through the body, body parts will be affected by heat, electrolysis and biological effects of the electric current, causing disruption and destruction of these parts, possibly leading to death.

The thermal effects of electric current on the human body are manifested through the phenomenon of causing burns, heating blood vessels, nerves, heart, brain and other parts of the body, leading to destruction of these parts or disrupting their function when the electric current passes through.

The electrolytic effect of electric current is manifested in the decomposition of body fluids, especially blood, leading to the breakdown of blood components and body tissues.

The biological effects of electric current are mainly manifested through the destruction of electrobiological processes, breaking biological balance, leading to the destruction of vital functions.

2.1.2. Types of electrical accidents.

Electrical accidents are divided into two types:

- Electrical injury

- Electric shock

a. Electrical injuries.

Electrical injury is the local destruction of body tissues caused by electric current or electric arc.

- Electrical burns: burns caused by electric current passing through the human body or by the impact of an electric arc, partly due to hot metal powder splashing on the body.

- Muscle spasms: when an electric current passes through the body, the muscles spasm.

- Eye inflammation: caused by the effects of ultraviolet rays in electric arcs.

b. Electric shock.

Electric shock is when an electric current passes through the human body.

Electric shock accounts for a very large proportion, about 80% of electrical accidents and 85% of fatal electrical accidents are due to electric shock.

Electric current passing through the body will stimulate tissues accompanied by muscle spasms at varying degrees:

- Muscle spasms but no suffocation.

- Muscle spasms, person faints but still maintains breathing and circulation.

- The person fainted, the heart and respiratory system were disturbed.

- Clinical death (no breathing, circulatory system not working)

2.2. Vietnamese standards on electrical safety.

Objective: Understand basic national standards on electrical safety to be aware of complying with those standards in the working environment.

(Excerpt from QCVN 01: 2008/BCT)

National technical regulation on electrical safety Article 5. Warning

In dangerous areas and areas where electrical equipment is installed, appropriate barriers, signs and signals must be arranged to warn of danger.

Article 6. Outdoor installation equipment

For high voltage electrical equipment installed outdoors, the employer must take the following measures to prevent unauthorized persons from entering the restricted area:

1. Fence or enclosure, etc.

2. “No entry” warning signs are placed at the entrance and exit.

3. Lock the door or use other equivalent devices placed at the entrance and exit. Article 7. Indoor equipment

For high voltage electrical equipment installed indoors, employers must take appropriate measures to prevent other people, other than employees of the work unit and direct operators, from coming near such equipment.

Article 8. Place barriers to create working areas for work units

When the working area of ​​a work unit is not within the distance specified in the table below from the surrounding live parts, a fence must be installed to separate the working area of ​​the work unit from the live parts.

Voltage level (kV)

Distance (m)
Up to 15	0.7
Over 15 to 35	1.0
Over 35 to 110	1.5
220	2.5
500	4.5

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Step 6 Check wiring and connectors (front fog light relay-light selector switch) - Disconnect connector D4 of the combination switch assembly - Use a voltmeter to measure the voltage value of jack D4 on the wire side. Measurement location Control modecontrol Standard D4-3 (BFG) - (-) AQ TAIL 11 to 14 V D4 connector for the wiring of the combination switch assembly If the voltage does not meet the standard, replace the wire or connector. If the voltage is within standard, there may have been an error in the previous measurements. Step 7 Check the front fog lights - Remove the front fog light electrical connector. - Supply battery voltage to the fog lamp terminals Jack 8, B9 of front fog lamp on the electrical side blind first. Power supply location Terms and Conditions Battery positive terminal - Terminal 2Battery negative terminal - Terminal 1 Fog lightsbefore morning - If the light does not come on, replace the bulb. If the light is on, re-plug the jack and continue to step 8. Step 8 Check wiring and connectors (relay and front fog lights) - Disconnect the B8 and B9 connectors of the front fog lights. - Use a voltmeter to measure voltage at the following locations: Measurement location Switch location Terms and Conditions B8-2 - (-) AQ Electric lock ON TAIL size switchFog switch ON 11 to 14 V B9-2 - (-) AQ Electric lock ONTAIL size switch Fog switch ON 11 to 14 V B8 and B9 connectors on the front fog lamp wiring side Voltage is not up to standard, repair or replace the jack. If up to standard, there may have been an error in the measurement process. 2.2.4. Procedure for removing, installing and adjusting fog lights 1. Procedure for removing - Remove the front inner ear pads Use a screwdriver to remove the 3 screws and remove the front part of the front inner ear liner -Remove the fog light assembly + Disconnect the connector. + Use a screwdriver to remove 3 screws to remove the fog light cover 2. Installation sequence -Rotate the fog lamp bulb in the direction indicated by the arrow as shown in the figure and remove the fog lamp from the fog lamp assembly. -Rotate the fog light bulb in the direction indicated by the arrow as shown in the figure and install the light into the fog light assembly. - Use a screwdriver to install the fog light cover -Install the electrical connector Attention: Be careful not to damage the plastic thread on the lamp assembly. - Install the front inner ear pads Use a screwdriver to install the front inner bumper with 3 screws. 3. Prepare the vehicle to adjust the fog light convergence. Prepare the vehicle: - Make sure there is no damage or deformation to the vehicle body around the fog lights. - Add fuel to the fuel tank - Add oil to standard level. - Add engine coolant to standard level. - Inflate the tire to standard pressure. - Place spare tire, tools and jack in original design position - Do not leave any load in the luggage compartment. - Let a person weighing about 75 kg sit in the driver's seat. 4. Prepare to check the fog light convergence a/ Prepare the vehicle status as follows: - Place the car in a dark enough place to see the lines. The lines are the dividing line, below which the light from the fog lights can be seen but above which it cannot. - Place the car perpendicular to the wall. - Keep a distance of 7.62 m between the center of the fog lamp and the wall. - Park the car on level ground. - Press the car down a few times to stabilize the suspension. 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H line (fog light height): Draw a line across the screen so that it passes through the center mark. Line H should be at the same height as the center mark of the fog light bulb. Line V LH, V RH (center mark position of left fog lamp LH and right fog lamp RH): Draw two lines so that they intersect line H at the center marks. 5. Check the fog light convergence a/ Cover the fog lamp or remove the connector of the other side fog lamp to prevent light from the unchecked fog lamp from affecting the fog lamp convergence test. b/ Start the engine. c/ Turn on the fog lights and make sure that the dividing line is outside the standard area as shown in the drawing. 6. Adjust the fog light convergence Use a screwdriver to adjust the fog light to the standard area by turning the toe adjustment screw. Note: If the screw is adjusted too far, loosen it and then tighten it again, so that the last rotation of the light adjustment screw is clockwise. 3. Self-study questions 1. Describe the operating principle of the lighting system with automatic headlight function 2. Describe the operating principle of the lighting system with the function of rotating headlights when turning 3. Draw diagram and connect lighting system on Hyundai Porter car 4. Draw diagram and connect lighting system on Honda Accord 1992 5. Draw the lighting circuit on a 1993 Toyota Lexus LESSON 3 MAINTENANCE AND REPAIR OF SIGNAL SYSTEM I. IMPLEMENTATION GOAL After completing this lesson, students will be able to: - Distinguish between types of signals on cars - Correctly describe common symptoms and suspected areas causing damage. - Connecting signal circuits ensures technical requirements - Disassemble, install, check, maintain and repair the signal system to ensure technical requirements. - Ensure safety in work and industrial hygiene II. LESSON CONTENT 1. General description The signal system equipped on cars aims to create signals to notify other vehicles participating in traffic about the vehicle's operating status such as: stopping, parking, braking, reversing, turning... Signals are used either by light such as headlamps, brake lights, turn signals….. or by sound such as horns, reverse music…. Just like the lighting system. A signal system circuit usually consists of: battery, fuse, wire, relay, electrical load and control switch. Only some switches of the signal system are on the combination switch. The switches of other signals are usually located in different locations such as in the gearbox or brake pedal…… 2. Maintenance and repair 2.1. Turn signals and hazard lights The installation location of the turn signal is shown in Figure 3.1. The turn signal control switch is located in the combination switch under the steering wheel. Turning this switch to the right or left will make the turn signal turn right or left. The hazard light switch is used when the vehicle has a problem while participating in traffic. When the hazard light switch is turned on, all the turn signals on the vehicle will light up at a certain frequency. The hazard light switch is usually placed separately from the turn signal switch (some old cars integrate the hazard and turn signal switches on the same combination switch cluster). Figure 3.1 Turn signal switch Figure 3.2 Hazard switch The part that generates the flashing frequency for the lights is called a turn signal relay. The turn signal relay usually has 3 terminals: B (positive power supply); E (negative power supply); L (providing the turn signal switch to distribute to the lamp) 2.1.1. Circuit diagram To generate the frequency for the turn signal, a turn signal relay is used in the turn signal circuit. The current from the turn signal relay will be sent to the turn signal switch assembly to distribute the current to the turn signal lights for the driver's purpose. Figure 3.3. Schematic diagram of a turn signal circuit without a hazard switch 1. Battery; 2. Electric lock; 3. Turn signal relay; 4. Turn signal switch; 5. Turn signal lamp; 6. Turn signal lamp; 7. Hazard switch Figure 3.4 Schematic diagram of turn signal circuit with hazard switch 1. Battery; 2. Combination switch cluster; 3. Turn signal; 4. Turn signal light; 5. Turn signal relay Today's cars no longer use three-pin turn signal relays (B, L, E) but use eight-pin turn signal relays (figure 3.5) (pin number 8 is used for hazard lights). For this type, the current supplying the turn signal lights is supplied directly from the turn signal relay to the lights. div.maincontent .p { color: black; font-family:"Times New Roman", serif; font-style: normal; font-weight: normal; text-decoration: none; font-size: 14pt; margin:0pt; } div.maincontent p { color: black; font-family:"Times New Roman", serif; font-style: normal; font-weight: normal; text-decoration: none; font-size: 14pt; margin:0pt; } div.maincontent .s1 { color: black; font-family:"Times New Roman", serif; font-style: normal; font-weight: normal; text-decoration: none; font-size: 13pt; } div.maincontent .s2 { color: black; font-family:"Times New Roman", serif; font-style: italic; font-weight: normal; text-decoration: none; font-size: 14pt; } div.maincontent .s3 { color: black; font-family:"Times New Roman", serif; font-style: normal; font-weight: normal; text-decoration: none; font-size: 14pt; } div.maincontent .s4 { color: black; font-family:"Times New Roman", serif; font-style: normal; font-weight: normal; text-decoration: none; font-size: 13pt; } div.maincontent .s5 { color: black; font-family:"Times New Roman", serif; font-style: normal; font-weight: normal; text-decoration: none; font-size: 13pt; vertical-align: 1pt; } div.maincontent .s6 { color: black; font-family:"Times New Roman", serif; font-style: normal; font-weight: normal; text-decoration: none; font-size: 11pt; } div.maincontent .s7 { color: black; font-family:"Times New Roman", serif; font-style: normal; font-weight: normal; text-decoration: none; font-size: 14pt; vertical-align: -9pt; } div.maincontent .s8 { color: black; font-family:"Times New Roman", serif; font-style: normal; font-weight: normal; text-decoration: none; font-size: 11pt; } div.maincontent .s9 { color: #008000; font-family:"Times New Roman", serif; font-style: normal; font-weight: normal; text-decoration: none; font-size: 14pt; } div.maincontent .s10 { color: black; font-family:"Times New Roman", serif; font-style: italic; font-weight: normal; te
• Limits of Access and Effects of Titanium Radiation on the Human Body.
• Identify Rating Levels and Rating Scales zt2i3t4l5ee zt2a3gstourism,quan lan,quang ninh,ecology,ecotourism,minh chau,van don,geography,geographical basis,tourism development,science zt2a3ge zc2o3n4t5e6n7ts of the islanders. Therefore, this indicator will be divided into two sub-indicators: a1. Natural tourism attractiveness a2. Cultural tourism attractiveness b. Tourist capacity The two island communes in Quan Lan have different capacities to receive tourists. Minh Chau Commune is home to many standard hotels and resorts, attracting high-income domestic and international tourists. Meanwhile, Quan Lan Commune has many motels mainly built and operated by local people, so the scale and quality are not high, and will be suitable for ordinary tourists such as students. c. Time of exploitation of Quan Lan Island Commune: Quan Lan tourism is seasonal due to weather and climate conditions and festivals only take place on certain days of the year, specifically in spring. In Quan Lan commune, the period from April to June and from September to November is considered the best time to visit Quan Lan because the cultural tourism activities are mainly associated with festivals taking place during this time. Minh Chau island commune: Tourism exploitation time is all year round, because this is a place with a number of tourist attractions with diverse ecosystems such as Bai Tu Long National Park Research Center, Tram forest, Turtle Laying Beach, so besides coming to the beach for tourism and vacation in the summer, Minh Chau will attract research groups to come for tourism combined with research at other times of the year. d. Sustainability The sustainability of ecotourism sites in Quan Lan and Minh Chau communes depends on the sensitivity of the ecosystems to climate changes. landscape. In general, these tourist destinations have a fairly high level of sustainability, because they are natural ecosystems, planned and protected. However, if a large number of tourists gather at certain times, it can exceed the carrying capacity and affect the sustainability of the environment (polluted beaches, damaged trees, animals moving away from their habitats, etc.), then the sustainability of the above ecosystems (natural ecosystems, human ecosystems) will also be affected and become less sustainable. e. Location and accessibility Both island communes have ports to take tourists to visit from Van Don wharf: - Quan Lan – Van Don traffic route: Phuc Thinh – Viet Anh high-speed boat and Quang Minh high-speed boat, depart at 8am and 2pm from Van Don to Quan Lan, and at 7am and 1pm from Quan Lan to Van Don. There are also wooden boats departing at 7am and 1pm. - Van Don - Minh Chau traffic route: Chung Huong high-speed train, Minh Chau train, morning 7:30 and afternoon 13:30 from Van Don to Minh Chau, morning 6:30 and afternoon 13:00 from Minh Chau to Van Don. f. Infrastructure Despite receiving investment attention, the issue of infrastructure and technical facilities for tourism on Quan Lan Island is still an issue that needs to be resolved because it has a direct impact on the implementation of ecotourism activities. The minimum conditions for serving tourists such as accommodation, electricity, water, communication, especially medical services, and security work need to be given top priority. Ecotourism spots in Minh Chau commune are assessed to have better infrastructure and technical facilities for tourism because there are quite complete and synchronous conditions for serving tourists, meeting many needs of domestic and foreign tourists. 3.2.1.4. Determine assessment levels and assessment scales Corresponding to the levels of each criterion, the index is the score of those levels in the order of 4, 3, 2, 1 decreasing according to the standard of each level: very attractive (4), attractive (3), average (2), less attractive (1). 3.2.1.5. Determining the coefficients of the criteria For the assessment of DLST in the two communes of Quan Lan and Minh Chau islands, the students added evaluation coefficients to show the importance of the criteria and indicators as follows: Coefficient 3 with criteria: Attractiveness, Exploitation time. These are the 2 most important criteria for attracting tourists to tourism in general and eco-tourism in particular, so they have the highest coefficient. Coefficient 2 with criteria: Capacity, Infrastructure, Location and accessibility . Because the assessment area is an island commune of Van Don district, the above criteria are selected by the author with appropriate coefficients at the average level. Coefficient 1 with criteria: Sustainability. Quan Lan has natural and human-made ecotourism sites, with high biodiversity and little impact from local human factors. Most of the ecotourism sites are still wild, so they are highly sustainable. 3.2.1.6. Results of DLST assessment on Quan Lan island a. Assessment of the potential for natural tourism development  For Minh Chau commune: + Natural tourism attractiveness is determined to be very attractive (4 points) and the most important coefficient (coefficient 3), so the score of the Attractiveness criterion is 4 x 3 = 12. + Capacity is determined as average (2 points) and the coefficient is quite important (coefficient 2), then the score of Capacity criterion is 2 x 2 = 4. + Exploitation time is long (4 points), the most important coefficient (coefficient 3) so the score of the Exploitation time criterion is 4 x 3 = 12. + Sustainability is determined as sustainable (4 points), the important coefficient is the average coefficient (coefficient 1), so the score of the Sustainability criterion is 4 x 1 = 4 points + Location and accessibility are determined to be quite favorable (2 points), the coefficient is quite important (coefficient 2), the criterion score is 2 x 2 = 4 points. + Infrastructure is assessed as good (3 points), the coefficient is quite important (coefficient 2), then the score of the Infrastructure criterion is 3 x 2 = 6 points. The total score for evaluating DLST in Minh Chau commune according to 6 evaluation criteria is determined as: 12 + 4 + 12 + 4 + 4 + 6 = 42 points Similar assessment for Quan Lan commune, we have the following table: Table 3.3: Assessment of the potential for natural ecotourism development in Quan Lan and Minh Chau communes Attractiveness of self-tourismof course Capacity Mining time Sustainability Location and accessibility Infrastructure Result Point DarkMulti Point DarkMulti Point DarkMulti Point DarkMulti Point DarkMulti Point DarkMulti CommuneMinh Chau 12 12 4 8 12 12 4 4 4 8 6 8 42/52 Quan CommuneLan 6 12 6 8 9 12 4 4 4 8 4 8 33/52 b. Assessment of the potential for humanistic tourism development  For Quan Lan commune: + The attractiveness of human tourism is determined to be very attractive (4 points) and the most important coefficient (coefficient 3), so the score of the Attractiveness criterion is 4 x 3 = 12. + Capacity is determined to be large (3 points) and the coefficient is quite important (coefficient 2), then the score of the Capacity criterion is 3 x 2 = 6. + Mining time is average (3 points), the most important coefficient (coefficient 3) so the score of the Mining time criterion is 3 x 3 = 9. + Sustainability is determined as sustainable (4 points), the important coefficient is the average coefficient (coefficient 1), so the score of the Sustainability criterion is 4 x 1 = 4 points. + Location and accessibility are determined to be quite favorable (2 points), the coefficient is quite important (coefficient 2), the criterion score is 2 x 2 = 4 points. + Infrastructure is rated as average (2 points), the coefficient is quite important (coefficient 2), then the score of the Infrastructure criterion is 2 x 2 = 4 points. The total score for evaluating DLST in Quan Lan commune according to 6 evaluation criteria is determined as: 12 + 6 + 6 + 4 + 4 + 4 = 36 points. Similar assessment with Minh Chau commune we have the following table: Table 3.4: Assessment of the potential for developing humanistic eco-tourism in Quan Lan and Minh Chau communes Attractiveness of human tourismliterature Capacity Mining time Sustainability Location and accessibility Infrastructure Result Point DarkMulti Point DarkMulti Point DarkMulti Point DarkMulti Point DarkMulti Point DarkMulti Quan CommuneLan 12 12 6 8 9 12 4 4 4 8 4 8 39/52 Minh CommuneChau 6 12 4 8 12 12 4 4 4 8 6 8 36/52 Basically, both Minh Chau and Quan Lan localities have quite favorable conditions for developing ecotourism. However, Quan Lan commune has more advantages to develop ecotourism in a humanistic direction, because this is an area with many famous historical relics such as Quan Lan Communal House, Quan Lan Pagoda, Temple worshiping the hero Tran Khanh Du, ... along with local festivals held annually such as the wind praying ceremony (March 15), Quan Lan festival (June 10-19); due to its location near the port and long exploitation time, the beaches in Quan Lan commune (especially Quan Lan beach) are no longer hygienic and clean to ensure the needs of tourists coming to relax and swim; this is also an area with many beautiful landscapes such as Got Beo wind pass, Ong Phong head, Voi Voi cave, but the ability to access these places is still very limited (dirt hill road, lots of gravel and rocks), especially during rainy and windy times; In addition, other natural resources such as mangrove forests and sea worms have not been really exploited for tourism purposes and ecotourism development. On the contrary, Minh Chau commune has more advantages in developing ecotourism in the direction of natural tourism, this is an area with diverse ecosystems such as at Rua De Beach, Bai Tu Long National Park Conservation Center...; Minh Chau beach is highly appreciated for its natural beauty and cleanliness, ranked in the top ten most beautiful beaches in Vietnam; Minh Chau commune is also home to Tram forest with a large area and a purity of up to 90%, suitable for building bridges through the forest (a very effective type of natural ecotourism currently applied by many countries) for tourists to sightsee, as well as for the purpose of studying and researching. Figure 3.1: Thenmala Forest Bridge (India) Source: https://www.thenmalaecotourism.com/(August 21, 2019) 3.2.2. Using SWOT matrix to evaluate Quan Lan island tourism General assessment of current tourism activities of Quan Lan island is shown through the following SWOT matrix: Table 3.5: SWOT matrix evaluating tourism activities on Quan Lan island Internal agent Strengths- There is a lot of potential for tourism development, especially natural ecotourism and humanistic ecotourism.- The unskilled labor force is relatively abundant.- resource environmentunpolluted, still Weaknesses- Poorly developed infrastructure, especially traffic routes to tourist destinations on the island.- The team of professional staff is still weak.- Tourism products in general quite wild, originalintact general and DLST in particularalone is monotonous. External agents Opportunity- Tourism is a key industry in the socio-economic development strategy of the province and Van Don economic zone.- Quan Lan was selected as a pilot area for eco-tourism development within the framework of the green growth project between Quang Ninh province and the Japanese organization JICA.- The flow of tourists and especially ecotourism in the world tends toincreasing Challenge- Weather and climate change abnormally.- Competition in tourism products is increasingly fierce, especially with other localities in the province such as Ha Long, Mong Cai...- Awareness of tourists, especially domestic tourists, about ecotourism and nature conservation is not high. Through summary analysis using SWOT matrix we see that:  To exploit strengths and take advantage of opportunities, it is necessary to: - Diversify products and service types (build more tourism routes aimed at specific needs of tourists: experiential tourism immersed in nature, spiritual cultural tourism...) - Effective exploitation of resources and differentiated products (natural resources and human resources) div.maincontent .p { color: black; font-family:"Times New Roman", serif; font-style: normal; font-weight: normal; text-decoration: none; font-size: 14pt; margin:0pt; } div.maincontent p { color: black; font-family:"Times New Roman", serif; font-style: normal; font-weight: normal; text-decoration: none; font-size: 14pt; margin:0pt; } div.maincontent .s1 { color: black; font-family:"Times New Roman", serif; font-style: normal; font-weight: normal; text-decoration: none; font-size: 13pt; } div.maincontent .s2 { color: black; font-family:"Times New Roman", serif; font-style: normal; font-weight: normal; text-decoration: none; font-size: 13pt; } div.maincontent .s3 { color: #0D0D0D; font-family:"Times New Roman", serif; font-style: normal; font-weight: bold; text-decoration: none; font-size: 14pt; } div.maincontent .s4 { color: black; font-family:"Times New Roman", serif; font-style: italic; font-weight: normal; text-decoration: none; font-size: 14pt; } div.maincontent .s5 { color: black; font-family:"Times New Roman", serif; font-style: italic; font-weight: bold; text-decoration: none; font-size: 14pt; } div.maincontent .s6 { color: black; font-family:"Times New Roman", serif; font-style: italic; font-weight: normal; text-decoration: none; font-size: 14pt; vertical-align: -3pt; } div.maincontent .s7 { color: black; font-family:"Times New Roman", serif; font-style: italic; font-weight: normal; text-decoration: none; font-size: 14pt; vertical-align: -2pt; } div.maincontent .s8 { color: black; font-family:"Times New Roman", serif; font-style: italic; font-weight: normal; text-decoration: none; font-size: 14pt; vertical-align: -1pt; } div.maincontent .s9 { color: black; font-family:"Times New Roman", serif; font-style: normal; font-weight: normal; text-decoration: none; font-size: 14pt; } div.maincontent .s10 { color: black; font-family:"Times New Roman", serif; font-style: normal; font-weight: bold; text-decoration: none; font-size: 14pt; } div.maincontent .s11 { color: black; font-family:"Times New Roman", serif; font-style: normal; font-weight: normal; text-decoration: none; font-size: 14pt; } div.maincontent .s12 { color: black; font-family:Symbol, serif; font-style: normal; font-weight: normal; text-decoration: none; font-size: 14pt; } div.maincontent .s13 { color: black; font-family:Wingdings; font-style: normal; font-weight: normal; text-decoration: none; font-size: 14pt; } div.maincontent .s14 { color: black; font-family:"Times New Roman", serif; font-style: normal; font-weight: normal; text-decoration: none; font-size: 9pt; vertical-align: 5pt; } div.maincontent .s15 { color: black; font-family:"Times New Roman", serif; font-style: normal; font-weight: normal; text-decoration: none; font-size: 9pt; vertical-align: 5pt; } div.maincontent .s16 { color: black; font-family:Cambria, serif; font-style: italic; font-weight: normal; text-decoration: none; font-size: 14pt; } div.maincontent .s17 { color: #080808; font-family:"Times New Roman", serif; font-style: normal; font-weight: bold; text-decoration: none; font-size: 14pt; } div.maincontent .s18 { color: #080808; font-family:"Times New Roman", serif; font-style: normal; font-weight: normal; text-decoration: none; font-size: 14pt; } div.maincontent .s19 { color: black; font-family:"Times New Roman", serif; font-style: normal; font-weight: normal; text-decoration: none; font-size: 11pt; } div.maincontent .s20 { color: black; font-family:"Times New Roman", serif; font-style: normal; font-weight: normal; text-decoration: none; font-size: 10pt; } div.maincontent .s21 { color: black; font-family:"Times New Roman", serif; font-style: normal; font-weight: bold; text-decoration: none; font-size: 11pt; } div.maincontent .s22 { color: black; font-family:"Times New Roman", serif; font-style: normal; font-weight: normal; text-decoration: none; font-size: 11pt; } div.maincontent .s23 { color: black; font-family:"Times New Roman", serif; font-style: italic; font-weight: normal; text-decoration: none; font-size: 14pt; } div.maincontent .s24 { color: #212121; font-family:"Times New Roman", serif; font-style: normal; font-weight: normal; tex
• Pre-tax Profit of Bidv Tien Giang in the Period 2011-2015 zt2i3t4l5ee zt2a3gsnon-credit services, joint stock commercial bank zt2a3ge zc2o3n4t5e6n7ts At that time, the Branch had to set aside a provision for credit risks, which reduced the Branch's income. Chart 2.2. Pre-tax profit of BIDV Tien Giang in the period 2011-2015 Unit: Billion VND 140 120 100 80 60 40 20 0 63.3 80.34 89.29 110.08 131.99 2011 2012 2013 2014 2015 Profit before tax (Source: Report on the implementation of the annual business plan of the General Planning Department of BIDV Tien Giang [24]) However, through chart 2.2, it can be seen that BIDV Tien Giang's profit is still increasing continuously, and its operating efficiency is currently leaking. This is a contribution of non-credit services, and this service segment will be increasingly focused on growth by BIDV Tien Giang to ensure the highest profit safety because credit activities have many potential risks. At the same time, focusing on developing non-credit services is consistent with one of the contents of restructuring the financial activities of credit institutions in the project "Restructuring the system of credit institutions in the period 2011-2015" approved by the Prime Minister in Decision No. 254/QD-TTg dated March 1, 2012 [14]: "Gradually shifting the business model of commercial banks towards reducing dependence on credit activities and increasing income from non-credit services". 2.2. Current status of non-credit service development at BIDV Tien Giang. 2.2.1. BIDV Tien Giang has deployed the development of non-credit services in recent times. Along with the development of the Head Office, BIDV Tien Giang's products and services are constantly improved and deployed in a diverse manner to ensure provision for many different customer groups in the area: individual customers, corporate customers, and financial institutions. Typical services are as follows: Payment services, treasury services, guarantee services, card services, trade finance, other services: Western Union, insurance commissions, consulting services, foreign exchange derivatives trading, e-banking services,... 2.2.1.1. Payment services: In accordance with the Prime Minister's Project to promote non-cash payments in Vietnam [15], banks in Tien Giang province have continuously developed payment services to reduce customers' cash usage habits through card services and electronic banking services such as: salary payment through accounts, focusing on developing card acceptance points, developing multi-purpose cards, paying social insurance by transfer, paying bills through banks, etc. Chart 2.3. Net income from payment services in the period 2011-2015 Unit: Million VND 6000 5000 4000 3000 2000 1000 0 3922 4065 4720 5084 5324 2011 2012 2013 2014 2015 Net income from payment services (Source: Report on the implementation of the annual business plan of the General Planning Department of BIDV Tien Giang [24]) Along with the technological development of the entire system, BIDV Tien Giang has a payment system with a fairly stable transaction processing speed, bringing many conveniences to customers. The results of observing chart 2.3 show that the income from payment services that the Branch has achieved has grown over the years but the speed is not high and the products are not outstanding compared to other banks. Domestic payment products such as: Online bill payment, electricity bills, water bills, insurance premiums, cable TV bills, telecommunications fees, airline tickets, etc. bring many conveniences to customers. Regarding international payment, this is an indispensable activity for foreign economic activities, BIDV Tien Giang is providing international payment methods for small enterprises producing agriculture, aquatic food and seafood that have credit relationships with banks in industrial parks in Tien Giang province such as: money transfer, collection, L/C payment. 2.2.1.2. Treasury services: BIDV Tien Giang always focuses on ensuring treasury safety and currency security, always complies with legal regulations, and minimizes risks in operations such as: counting and collecting money from customers, receiving and delivering internal transactions, collecting from the State Bank (SBV) or other credit institutions, receiving ATM funds, bundling money, etc. BIDV Tien Giang's treasury service management department is always fully equipped with modern machinery and equipment such as: money transport vehicles, fire prevention tools, money counters, money detectors, magnifying glasses, etc. to ensure absolute safety in treasury operations, immediately identifying real and fake money and other risks that may affect people and assets of the bank and customers. In addition, implementing regulation 2480/QC dated October 28, 2008 between the State Bank of Tien Giang province and the Provincial Police on coordination in the fight against counterfeit money, in the 3-year review of implementation, BIDV Tien Giang discovered, seized and submitted to the State Bank of Tien Giang province 475 banknotes of various denominations and was commended by the Provincial Police and the State Bank of Tien Giang province [17]. Chart 2.4. Net income from treasury services in the period 2011-2015 Unit: Million VND 350 300 250 200 150 100 50 0 105 122 309 289 279 2011 2012 2013 2014 2015 Net income from treasury services (Source: Report on the implementation of the annual business plan of the General Planning Department of BIDV Tien Giang [24]) However, as shown in Figure 2.4, income from treasury operations is not high and fluctuates. Specifically, in the period 2011-2013, net income increased and increased most sharply in 2013, then in the period 2013-2015, there was a downward trend. This fluctuation is due to the fact that fees collected from treasury services are often very low and can even be waived to attract customers to use other services. 2.2.1.3. Guarantee and trade finance services: BIDV Tien Giang, thanks to the advantages of the province and the favorable location of the Branch, has continuously focused on developing income from guarantee services and trade finance. Chart 2.5. Net income from guarantee and trade finance services in the period 2011-2015 Unit: Million VND 14000 12000 10000 8000 6000 4000 2000 0 5193 5695 2742 3420 8889 3992 11604 12206 5143 5312 2011 2012 2013 2014 2015 Net income from guarantee services Net income from Trade Finance (Source: Report on the implementation of the annual business plan of the General Planning Department of BIDV Tien Giang [24]) Through chart 2.5, we can see that BIDV Tien Giang's income from guarantee services and trade finance has grown over the years. The reason is: Among BIDV Tien Giang's corporate customers, the construction industry is the industry with the highest proportion of customers after the trading industry, this is a group of customers with potential to develop guarantee services. The second group of customers is corporate customers in the fields of agricultural production, livestock and seafood processing with high import and export turnover in the area. are the target of trade finance development. In addition, BIDV Tien Giang also focuses on continuously developing these customer groups to increase revenue for many other products and services in the future. 2.2.1.4. Card and POS services: As a service that BIDV Tien Giang has recently developed strongly, it can be said that this is a very potential market and has the ability to develop even more strongly in the future. Card services with outstanding advantages such as fast payment time, wide payment range, quite safe, effective and suitable for the integration trend and the Project to promote non-cash payments in Vietnam. Cards have become a modern and popular payment tool. BIDV Tien Giang early identified that developing card services is to expand the market to people in society, create capital mobilized from card-opened accounts, contribute to diversifying banking activities, enhance the image of the bank, bring the BIDV Tien Giang brand to people as quickly and easily as possible. BIDV Tien Giang is currently providing card types such as: credit cards (BIDV MasterCard Platinum, BIDV Visa Gold Precious, BIDV Visa Manchester United, BIDV Visa Classic), international debit cards (BIDV Ready Card, BIDV Manu Debit Card), domestic debit cards (BIDV Harmony Card, BIDV eTrans Card, BIDV Moving Card, BIDV-Lingo Co-branded Card, BIDV-Co.opmart Co-branded Card). These cards can be paid via POS/EDC or on the ATM system. In addition, with debit cards, customers can not only withdraw money via ATMs but also perform utilities such as mobile top-up, online payment, money transfer,... through electronic banking services. In order to attract customers with card services, BIDV Tien Giang has continuously increased the installation of ATMs. As of December 31, 2015, BIDV Tien Giang has 23 ATMs combined with 7 ATMs in the same system of BIDV My Tho, so the number of ATMs is quite large, especially in the center of My Tho City, but is not yet fully present in the districts. Basic services on ATMs such as withdrawing money, checking balances, printing short statements,... BIDV ATMs accept cards from banks in the system. Banknetvn and Smartlink, cards branded by international card organizations Union Pay (CUP), VISA, MasterCard and cards of banks in the Asian Payment Network. From here, cardholders can make bill payments for themselves or others at ATMs, by simply entering the subscriber number or customer code, booking code that service providers notify and make bill payments. Chart 2.6. Net income from card services in the period 2011-2015 Unit: Million VND 3500 3000 2500 2000 1500 1000 500 0 687 1023 1547 2267 3104 2011 2012 2013 2014 2015 Net income from card services (Source: Report on the implementation of the annual business plan of the General Planning Department of BIDV Tien Giang [24]) Through chart 2.6, it can be seen that BIDV Tien Giang's card service income is constantly growing because the Branch focuses on developing businesses operating in industrial parks, which are the source of customers for salary payment products, ATMs, BSMS. Specifically, there are companies such as Freeview, Quang Viet, Dai Thanh, which are businesses with a large number of card openings at the Branch, contributing to the increase in card service fees [25]. Table 2.6. Number of ATMs and POS machines in 2015 of some banks in Tien Giang area. Unit: Machine STT Bank name Number of ATMs Cumulative number of ATM cards POS machine 1 BIDV Tien Giang 23 97,095 22 2 BIDV My Tho 7 21,325 0 3 Agribank Tien Giang 29 115,743 77 4 Vietinbank Tien Giang 16 100,052 54 5 Dong A Tien Giang 26 97,536 11 6 Sacombank Tien Giang 24 88,513 27 7 Vietcombank Tien Giang 15 61,607 96 8 Vietinbank - Tay Tien Giang Branch 6 46,042 38 (Source: 2015 Banking Activity Data Report of the General and Internal Control Department of the Provincial State Bank [21]) Through table 2.6, the author finds that the number of ATMs of BIDV Tien Giang is not much, ranking fourth after Agribank Tien Giang, Dong A Tien Giang, Sacombank Tien Giang. The number of POS machines of BIDV Tien Giang is very small, only higher than Dong A Tien Giang and BIDV My Tho in the initial stages of merging the BIDV system. Besides, BIDV Tien Giang has a high number of cards increasing over the years (table 2.7) but the cumulative number of cards issued up to December 31, 2015 is still relatively low compared to Agribank, Vietcombank, Dong A (table 2.6). div.maincontent .content_head3 { color: black; font-family:"Times New Roman", serif; font-style: normal; font-weight: bold; text-decoration: none; font-size: 14pt; } div.maincontent .p { color: black; font-family:"Times New Roman", serif; font-style: normal; font-weight: normal; text-decoration: none; font-size: 14pt; margin:0pt; } div.maincontent p { color: black; font-family:"Times New Roman", serif; font-style: normal; font-weight: normal; text-decoration: none; font-size: 14pt; margin:0pt; } div.maincontent .s1 { color: black; font-family:"Courier New", monospace; font-style: normal; font-weight: normal; text-decoration: none; font-size: 14pt; } div.maincontent .s2 { color: black; font-family:"Times New Roman", serif; font-style: italic; font-weight: normal; 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• Assessment of the Current Status of the Policy on Developing Female Human Resources in the People's Public Security Force

The distance from the barrier to the live part is specified in the following table:

Voltage level (kV)

Distance (m)
Up to 15	0.35
Over 15 to 35	0.6
Over 35 to 110	1.5
220	2.5
500	4.5

Article 11. Warnings at the workplace

The direct commander of the work unit must place safety warning signals in dangerous areas during the work process to ensure the safety of the work unit's employees and the community.

Article 12. Placement of barriers

The work unit must take appropriate measures such as placing barriers if necessary around the work area so that unauthorized persons do not enter and cause accidents and self-injury. Particularly in the case of working with underground power cables, the work unit must take measures to prevent people from falling into the hole.

Article 13. Warning signals

The work unit must place warning signals before working to ensure community safety.

Article 14. Working on traffic routes

1. When using roads for work such as construction and repair, the work unit may restrict the passage of vehicles and pedestrians to ensure public safety.

2. When restricting vehicles from participating in traffic, the regulations of relevant authorities must be fully implemented and the following requirements must be ensured:

a) Warning signals must be placed and guides must be arranged to avoid danger to the community;

b) The width of the road for vehicles to pass must comply with the regulations of the road management agency.

3. When restricting pedestrian movement, to ensure safe passage, ropes must be stretched, temporary barriers installed, etc., and specific signs must be provided.

4. When work is carried out near railways, roads, waterways, or at intersections between power lines and the above-mentioned traffic routes, the working unit must contact the relevant agency and request that this agency arrange for support personnel during the work to ensure the safety of people and vehicles participating in traffic, if deemed necessary.

Article 15. Organization of work units

A work unit must have at least two people, of which there must be a direct commander with overall responsibility.

Article 16. Assigning direct commanders and staff of work units

The employer is responsible for assigning direct supervisors and unit employees who are suitable for the job, qualified and capable of performing the job safely.