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The occupational safety document for the refrigeration systems industry provides important knowledge on protecting the health and safety of workers in the refrigeration systems field. With detailed guidance and preventive measures, this document helps ensure a safe working environment, minimize accident risks, and raise awareness of occupational safety. This is a valuable source of information for engineers, staff, and managers in the refrigeration systems industry.

Table of Contents

PART I: CURRENT STATE OF SAFETY IN THE REFRIGERATION SYSTEMS INDUSTRY

I. General Situation

The Ministry of Labour, Invalids and Social Affairs informs sectors and localities of the occupational accident situation in the first 6 months of 2024 and outlines key solutions to proactively prevent incidents and accidents in the last 6 months of 2024. According to reports from 61 out of 63 centrally governed provinces and cities, in the first 6 months of 2024, there were a total of 3,201 occupational accidents nationwide (a decrease of 227 cases, equivalent to 7.09% compared to the same period in 2023), resulting in 3,065 victims (a decrease of 197 people, equivalent to 6.04% compared to the first 6 months of 2023), including both employees under labor contracts and those working without labor contracts. Specifically:

Number of fatal occupational accidents: 320 cases, a decrease of 25 cases (7.25%) compared to the first 6 months of 2023 (including 245 cases in areas with labor relations, a decrease of 28 cases or 10.3%; and 75 cases in areas without labor contracts, an increase of 3 cases or 4.2% compared to the first 6 months of 2023);
Number of deaths due to occupational accidents: 346 people, a decrease of 7 people or 1.98% compared to the same period in 2023 (including 268 in areas with labor relations, a decrease of 13 people or 4.63%; and 78 in areas without labor contracts, an increase of 6 people or 8.33%).
Number of people seriously injured: 810 people, an increase of 26 people or 3.32% compared to the first 6 months of 2023 (including 710 in areas with labor relations, a decrease of 5 people or 0.7%; and 100 in areas without labor contracts, an increase of 31 people or 44.92%).

Download the PDF file Occupational Accident Report – First 6 Months of 2024 issued by the Ministry of Labour, Invalids and Social Affairs.

The occupational accident situation in the first 6 months of 2024 in both sectors with and without labor relations saw a decrease in the number of deaths and fatal accidents compared to the same period in 2023.

II. Some Occupational Accidents in the Refrigeration Systems Industry

Occupational accidents in the refrigeration systems industry often occur due to factors such as refrigerant leaks, unsafe equipment, and incorrect operating procedures. A typical accident is when a worker repairs a compressor but does not check it thoroughly before starting, leading to an ammonia gas leak that causes severe poisoning. Such incidents highlight the importance of adhering to safety regulations and using personal protective equipment.

In addition, the maintenance and cleaning of equipment in the refrigeration system can also be dangerous if not done correctly. For example, in another case, a worker suffered severe frostbite for not wearing protective gloves when handling pipes containing refrigerant at a very low temperature. This accident not only caused harm to the worker but also disrupted production and caused economic losses to the business.

Finally, electrical accidents in refrigeration systems are also a major hazard. There have been cases where workers were electrocuted while working with the electronic control system of a cooling machine. The main cause is a lack of knowledge about the electrical system or failure to follow the safe power-off procedure before working. These accidents show the need for adequate and continuous occupational safety training for workers.

PART II: OCCUPATIONAL SAFETY AND HEALTH WHEN WORKING IN THE REFRIGERATION SYSTEMS INDUSTRY

I. Occupational safety and health for staff installing and inspecting refrigeration systems

1. Job characteristics of installing and inspecting refrigeration systems

The job of installing and inspecting refrigeration systems requires skill and meticulousness in every detail. First, when installing equipment, the technician needs to install the system components according to the design drawings and technical standards. This ensures that equipment such as compressors, heat exchangers, and controllers are installed in the correct position and connected accurately, helping the system to operate efficiently and durably.

Next, connecting the pipes is an important step in the installation process. The technician must carefully weld and connect the refrigerant pipes, ensuring that all welds and connections are tight and safe. This not only prevents refrigerant leaks but also ensures that the system maintains the necessary pressure and temperature for optimal operation.

Finally, pressure testing is an important check to ensure the system has no leaks and operates stably. The technician will perform pressure tests to determine if the system has any weak points and to fix them in a timely manner if problems are found. This helps to ensure that the refrigeration system can operate safely and efficiently, extending the life of the equipment and reducing risks for the user.

2. Types of occupational accidents during the installation and inspection of refrigeration systems

During the installation and inspection of refrigeration systems, many types of occupational accidents can occur, which are dangerous for technicians. First, when installing equipment, the installation of components according to design drawings and technical standards may pose a risk if the equipment is not securely fixed. Accidents can include equipment falling or hitting, causing injury, or the danger of working at heights without proper protective measures.

Connecting the pipes is another step that is prone to accidents, especially during the welding and connecting of refrigerant pipes. Technicians are at risk of being burned by contact with welding tools or injured by debris from the welding process. In addition, failure to ensure that the joints are tight can lead to refrigerant leaks, causing poisoning or serious respiratory problems.

3. Causes of occupational accidents when installing and inspecting refrigeration systems

The causes of occupational accidents when installing and inspecting refrigeration systems often stem from a failure to follow safety and technical procedures. During the installation of equipment, the failure to install components according to the design drawings and technical standards can lead to incidents such as the equipment not being securely fixed or being installed in the wrong position. This can cause accidents such as equipment falling, hitting, or even damaging the system, leading to risks for workers.

Connecting the pipes is also a step that is prone to accidents if not done carefully. The welding and connecting of refrigerant pipes require high skill and concentration. If the welds are not tight or are open, the refrigerant can leak, causing poisoning or respiratory problems for the technician. Furthermore, the use of welding tools without following personal protective measures can lead to burns or injuries from debris from the welding process.

Pressure testing is the final but no less important and dangerous step. The cause of accidents in this process is often due to a lack of thorough inspection or a lack of experience in detecting weak points in the system. If the system leaks or cannot withstand high pressure, explosions can occur, causing serious injuries. Therefore, adhering to strict inspection procedures and using personal protective equipment are key factors in ensuring the safety of workers.

4. Measures to prevent occupational accidents when installing and inspecting refrigeration systems

Measures to prevent occupational accidents when installing and inspecting refrigeration systems require strict adherence to technical and safety procedures. First, during the installation of equipment, the installation of components according to the design drawings and technical standards is extremely important. The technician needs to receive occupational safety training to have a clear understanding of the installation steps, ensuring the equipment is securely fixed and there is no risk of falling or hitting, thereby reducing the risk of accidents.

In the pipe connection stage, the welding and connecting of refrigerant pipes must be carried out with great care. The technician needs to comply with the regulations on welding safety and use personal protective equipment such as gloves and a welding mask. Occupational safety training helps the technician to master the welding and pipe connection techniques, ensuring the joints are tight and do not leak, preventing the risk of contact with refrigerant, which can cause poisoning or respiratory problems.

5. Occupational safety regulations when installing and inspecting refrigeration systems

The occupational safety regulations for installing and inspecting refrigeration systems are a key factor in protecting the health and life of technicians. During the installation of equipment, the installation of components must strictly adhere to the design drawings and technical standards. The technicians need to ensure that all equipment is securely fixed and does not pose a danger during installation and operation. Occupational safety training provides the necessary knowledge to perform this work safely and effectively.

When connecting the pipes, the technician must follow the safety regulations for welding and connecting the refrigerant pipes. This includes the proper use of personal protective equipment such as gloves, safety glasses, and a welding mask to protect against the risks of burns and inhalation of toxic gases. Occupational safety training helps the technician to master the welding and pipe connection skills, ensuring that the welds and connections are always tight and safe, preventing refrigerant leaks.

Pressure testing is the final but very important step in this process. The safety regulations require the technician to perform a thorough pressure test to ensure the system is not leaking and can operate stably. The pressure tests must be performed with accurate measuring devices and the technician must be well-trained on these inspection procedures. Occupational safety training ensures that the technician has sufficient knowledge and skills to detect and promptly handle problems, reducing the risk of accidents and ensuring the refrigeration system operates effectively and safely.

6. Handling emergency occupational accident situations when installing and inspecting refrigeration systems

Handling emergency occupational accident situations when installing and inspecting refrigeration systems requires quickness and a solid knowledge of safety measures. When an accident occurs during the installation of equipment, the first thing to do is to ensure the safety of the victim and those around. The technician needs to quickly stop all activities and move the victim out of the hazardous area. Then, call for an ambulance immediately and provide detailed information about the victim’s condition for timely assistance.

In the event of an accident related to the welding and connecting of refrigerant pipes, such as a burn or contact with toxic gas, initial first aid should be provided quickly. For burns, immediately rinse the wound under cool running water for at least 10 minutes and cover it with a clean cloth. If toxic gas is inhaled, move the victim to a well-ventilated area and monitor their respiratory symptoms. Call for an ambulance and provide detailed information about the type of gas and the duration of exposure so that the medical team can prepare an appropriate treatment plan.

When a leak or explosion occurs during a pressure test, the first thing to do is to evacuate everyone from the hazardous area. Disconnect the power source and immediately report to the management for timely remediation. The technician needs to be trained in occupational safety to know how to handle these emergencies, including the use of firefighting equipment, basic first aid, and the incident reporting process. This helps to reduce the consequences of the accident and to ensure the safety of everyone in the work area.

II. Occupational safety and health for periodic maintenance staff

1. Job characteristics of periodic maintenance

The job of periodic maintenance in a refrigeration system requires great care and high professional skill. One of the important tasks is to clean the cooling coil. This process involves removing dust and debris that has accumulated on the surface of the cooling coil, which helps to improve the cooling performance and reduce energy consumption. The technician must use specialized cleaning solutions and ensure that sensitive parts in the system are not damaged.

Changing the compressor oil is an essential part of periodic maintenance. The compressor is the heart of the refrigeration system, and the compressor oil needs to be changed regularly to ensure smooth operation and to extend the life of the equipment. The technician needs to know how to choose the right type of oil and to follow the correct oil change procedure, including draining the old oil and pouring new oil into the system without causing contamination.

Checking the refrigerant level and replacing worn parts are the final but no less important tasks. The refrigerant level needs to be checked regularly to ensure the system is operating efficiently and has no leaks. Parts such as filters, valves, and pipes can wear out over time and need to be replaced in a timely manner. The technician must be able to detect signs of damage early and to perform the replacement quickly to avoid disrupting the operation of the refrigeration system. Periodic maintenance not only ensures optimal performance but also extends the life of the system, providing peace of mind for the user.

2. Types of occupational accidents during periodic maintenance

During the periodic maintenance of a refrigeration system, many types of occupational accidents can occur, which are dangerous for the technician. When cleaning the cooling coil, the technician faces the risk of being cut or scratched by the sharp edges of the cooling coil or by cleaning tools. In addition, contact with cleaning chemicals can cause skin or respiratory irritation if not properly protected. This highlights the importance of using personal protective equipment such as gloves and safety glasses.

Changing the compressor oil also poses many risks. The process of draining and pouring oil can cause oil to spill, leading to a risk of slips and falls. In addition, if the compressor oil is contaminated or the wrong type of oil is used, the compressor can malfunction, causing damage and even fire or explosion. Failure to follow safety procedures during the oil change process can lead to serious accidents, disrupting the operation of the system and endangering the technician.

Checking the refrigerant level and replacing worn parts can also lead to occupational accidents. Refrigerant leaks not only cause poisoning but can also reduce the efficiency of the system. In addition, replacing worn parts requires the technician to work with electrical equipment and high pressure, which can easily lead to the risk of electric shock or injury from pressure.

3. Causes of occupational accidents during periodic maintenance

The causes of occupational accidents during the periodic maintenance of a refrigeration system often stem from a failure to follow safety procedures and a lack of professional knowledge. When cleaning the cooling coil, technicians may have an accident due to using the wrong tools or not using personal protective equipment. The sharp edges of the cooling coil or cleaning chemicals can cause cuts, scratches, or skin irritation, especially if there are no proper protective measures.

Changing the compressor oil is a task that requires precision and care. The main cause of accidents in this process is often due to the technician not following the procedure for draining and pouring oil, leading to oil spills and a risk of slips and falls. In addition, the use of the wrong type of oil or contaminated oil can cause the compressor to be damaged, leading to fire or serious damage. A lack of understanding of the technical and safety standards when changing the oil is also a significant cause of occupational accidents.

Checking the refrigerant level and replacing worn parts requires a high level of skill and attention. The cause of accidents in this process is often due to not thoroughly checking the parts before replacement or not following safety procedures when working with electrical equipment and high pressure. Refrigerant leaks due to undetected or incorrect operation can cause poisoning and respiratory problems. At the same time, a lack of experience and not being fully trained on occupational safety measures can lead to the risk of electric shock or injury from pressure.

4. Measures to prevent occupational accidents during periodic maintenance

Measures to prevent occupational accidents during the periodic maintenance of a refrigeration system include strict adherence to safety procedures and the use of personal protective equipment. When cleaning the cooling coil, the technician should wear gloves, safety glasses, and use specialized cleaning solutions carefully to avoid being cut or scratched. Ensuring a clean and well-ventilated work environment is an important factor in reducing the risk of contact with toxic chemicals.

Changing the compressor oil requires the technician to follow technical and safety procedures accurately. Use the right type of oil and perform the oil change in a controlled area to avoid oil spills that could cause slips and falls. Training technicians on these procedures and regularly checking the quality of the oil and equipment are effective measures to prevent accidents. Work environment monitoring also plays an important role in detecting potential hazards early and ensuring safe working conditions.

Checking the refrigerant level and replacing worn parts should be performed by experienced and well-trained technicians. Ensure that all operations comply with safety procedures, especially when working with electrical equipment and high pressure. Use accurate measuring devices and perform thorough checks before replacing parts to minimize risks. Work environment monitoring helps to continuously monitor working conditions, thereby promptly detecting abnormalities and taking quick remedial measures, ensuring the safety of technicians throughout the periodic maintenance process.

5. Occupational safety regulations during periodic maintenance

The occupational safety regulations for the periodic maintenance of a refrigeration system are a crucial foundation for protecting the health and safety of technicians. During the cleaning of the cooling coil, technicians must follow the instructions on the use of chemicals and cleaning equipment. Wearing gloves, safety glasses, and protective clothing is a mandatory requirement to prevent cuts, scratches, and contact with toxic chemicals. At the same time, the work area should be well-ventilated to avoid inhaling chemical vapors.

Changing the compressor oil needs to comply with technical procedures and strict safety standards. Technicians must use the right type of oil and ensure that the oil is not contaminated. The oil change process includes draining the old oil, checking the new oil quality, and pouring the new oil into the system. The work area should be clean and equipped with anti-spill devices to avoid the risk of slips and falls. Technicians should also be fully trained on the oil change process and related safety measures.

6. Handling emergency occupational accident situations during periodic maintenance

Handling emergency occupational accident situations during the periodic maintenance of a refrigeration system requires quickness and a clear understanding of basic first aid measures. When an accident occurs during the cleaning of the cooling coil, the first thing to do is to disconnect the power source to ensure safety. Then, the technician should provide first aid to the victim by cleaning the wound with clean water if a chemical has been splashed or by bandaging a cut or scratch. Immediately call for an ambulance and provide detailed information about the victim’s condition so that the medical team can intervene in a timely manner.

In an emergency situation when changing the compressor oil, if an oil spill occurs causing a slip and fall or a fire, work should be stopped immediately and the area evacuated. Use a fire extinguisher to put out the fire if a fire occurs and ensure that there are no remaining fire sources. If a technician is injured, first aid should be provided on the spot and the victim should be taken to the nearest medical facility for treatment. Prompt and effective handling helps to reduce the risk of the accident spreading and to protect the safety of those around.

III. Occupational safety and health for troubleshooting staff

1. Job characteristics of troubleshooting

The job of troubleshooting a refrigeration system requires the technician to have the ability to quickly detect and fix problems to ensure the system operates stably. When the system is not cooling, the technician must check the entire system to determine the cause. This may include checking the compressor, heat exchanger, and refrigerant level. Using specialized measuring devices, the technician will accurately identify the problem and take remedial measures such as replacing components or recharging the refrigerant.

Unusual noise from the refrigeration system is also a sign of a potential problem. The technician needs to listen and identify the source of the noise, which may be from the compressor, fan, or other moving parts. Early detection and fixing of unusual noise helps to prevent more serious damage to the system. The technician will take steps such as lubricating the parts, replacing damaged components, or readjusting the components to ensure the system operates smoothly and effectively.

A refrigerant leak is a serious problem that needs to be addressed immediately to avoid affecting the environment and human health. The technician will use specialized leak detection devices to locate the leak. After detection, they will repair it by welding the joints or replacing the damaged pipe sections. Ensuring that the system is no longer leaking and checking the refrigerant level are the final steps to complete the troubleshooting process. These tasks require high precision and professional skill to ensure the refrigeration system always operates safely and effectively.

2. Types of occupational accidents during troubleshooting

During the troubleshooting of a refrigeration system, many types of occupational accidents can occur, which can be dangerous for the technician. When detecting and fixing a system that is not cooling, the technician often has to work with electrical equipment and refrigerants. If safety procedures are not followed, the risk of electric shock is very high, especially when inspecting and repairing parts such as the compressor and heat exchanger. Contact with high voltage without proper protective measures can lead to serious injury or even death.

Troubleshooting unusual noise also poses many risks. When the technician inspects and adjusts the moving parts, they can get their hand caught or be injured by rotating parts, such as a fan or a fan blade. A lack of experience or not using the right protective equipment can lead to serious occupational accidents. In addition, working in a noisy environment without using hearing protection can cause long-term damage to the technician’s hearing.

3. Causes of occupational accidents during troubleshooting

The causes of occupational accidents when troubleshooting a refrigeration system often stem from a failure to follow safety procedures and a lack of professional skills. When detecting and fixing a system that is not cooling, some technicians may ignore basic safety steps such as disconnecting the power source before inspecting or repairing electrical equipment. This leads to the risk of electric shock, especially when working with high-voltage components such as compressors and heat exchangers. A lack of understanding of the electrical system is also a major cause of serious occupational accidents.

Troubleshooting unusual noise also poses many risks if the correct safety procedures are not followed. The common cause is due to the technician’s lack of experience or inadequate training, leading to the use of the wrong tools or not knowing how to safely inspect and adjust rotating parts such as a fan or a fan blade. The failure to use personal protective equipment, such as gloves and safety glasses, when working with moving parts can cause accidents such as getting a hand caught or an eye injury.

4. Measures to prevent occupational accidents during troubleshooting

Measures to prevent occupational accidents when troubleshooting a refrigeration system require strict adherence to safety procedures and continuous professional training. When detecting and fixing a system that is not cooling, the technician must always ensure the power source is disconnected before starting the inspection or repair. The use of safe measuring devices to check the voltage and compliance with technical instructions are effective ways to prevent the risk of electric shock. Regular participation in occupational safety training courses also helps to improve the skills and awareness of the technician on safety measures.

Troubleshooting unusual noise requires the technician to use the right tools and personal protective equipment such as gloves, safety glasses, and hearing protection. Ensure that all rotating parts such as a fan or a fan blade are inspected and maintained correctly to prevent accidents such as getting a hand caught or an injury. Adherence to the inspection and regular maintenance procedures helps to detect potential problems early and to fix them in a timely manner, thereby reducing the risk of occupational accidents.

5. Occupational safety regulations for troubleshooting

Complete tests at occupational safety centers to obtain an occupational safety certificate. This will ensure that workers understand safety knowledge and have valid certification for employment.

The occupational safety regulations for troubleshooting a refrigeration system are an essential factor in protecting the health and safety of the technician. When detecting and fixing a system that is not cooling, the technician must always disconnect the power source before starting any inspection or repair work. This is to ensure there is no risk of electric shock. The use of safe measuring devices to check and confirm there is no voltage in the system before working is a mandatory regulation.

When troubleshooting unusual noise, the technician needs to comply with the regulations on the use of personal protective equipment. This includes wearing gloves, safety glasses, and hearing protection to avoid the risk of getting a hand caught or an eye injury from rotating parts or fan blades. The technician must follow the inspection and regular maintenance procedures to detect problems early and to fix them safely, preventing occupational accidents.

For a refrigerant leak, the safety regulations require the technician to use specialized leak detection devices to identify the location and extent of the leak. The technician should wear a respirator and work in a well-ventilated area to avoid gas poisoning. A clear understanding of the types of refrigerants and how to handle a leak is mandatory.

6. Handling emergency occupational accident situations during troubleshooting

Handling emergency occupational accident situations when troubleshooting a refrigeration system requires quickness and a good understanding of basic first aid skills. When an accident occurs due to the system not cooling, the technician needs to immediately disconnect the power source to ensure safety. Then, provide first aid to the victim by moving them out of the hazardous area and checking their health condition. Call for an ambulance and provide detailed information about the victim’s condition so that the medical team can intervene in a timely manner.

In an emergency situation related to unusual noise, if the technician is injured by rotating parts such as a fan or a fan blade, the equipment should be stopped immediately and first aid provided on the spot. Use a bandage to bandage the wound and ensure the victim is taken to a medical facility for a more thorough examination. At the same time, report the incident to the management for remedial measures and to prevent similar accidents in the future.

When faced with a refrigerant leak, the risk of poisoning is very high. The technician must quickly evacuate from the leaked area and use a respirator if available. Move the victim out of the gas poisoning area and provide oxygen if necessary. Call for an ambulance and provide information about the type of refrigerant and the level of exposure so that the medical team can prepare an appropriate treatment plan. Training the technician on emergency response procedures and fully equipping them with personal protective equipment are key factors in reducing risks and ensuring safety during the troubleshooting of a refrigeration system.

IV. Occupational safety and health for performance testing staff

1. Job characteristics of performance testing

The job of testing the performance of a refrigeration system requires the technician to be able to accurately measure the operating parameters to ensure the system is operating efficiently and stably. First, the technician needs to use specialized measuring devices such as a pressure gauge, a thermometer, and electronic sensors to record the important parameters of the system. This inspection helps to detect abnormalities early and to adjust them in a timely manner, ensuring that the system maintains optimal performance.

The measurement process includes checking the pressure and temperature of the refrigerant, the performance of the compressor, and the condition of parts such as the cooling coil and the heating coil. The technician needs to compare the measured parameters with the technical standards and data from the manufacturer to determine the operating level of the system. The difference between the measured values and the standards may indicate problems that need to be fixed immediately to avoid damage or reduced performance.

Finally, the recording and analysis of the measurement data are important steps in evaluating the long-term performance of the system. The technician needs to store and monitor the parameters over time to detect trends and fluctuations. This allows for the prediction and implementation of periodic maintenance, preventing major incidents and ensuring that the refrigeration system always operates stably and efficiently. These tasks not only require high precision and professional skill but also patience and good data analysis ability.

2. Types of occupational accidents during performance testing

During the performance testing of a refrigeration system, many types of occupational accidents can occur, affecting the safety of the technician. When using measuring devices such as a pressure gauge and a thermometer, the technician is at risk of electric shock if the devices are not properly insulated or if they do not follow safety procedures. Contact with live parts without protection can lead to serious injury.

Occupational accidents can also occur when the technician checks parts such as the compressor, cooling coil, and heating coil. This process often requires working near rotating or high-temperature parts, leading to the risk of burns or getting a hand caught. A lack of experience or not using the right personal protective equipment can increase the risk of these accidents. At the same time, an unsafe work environment, such as a slippery floor or a cramped space, is also a cause of accidents.

3. Causes of occupational accidents during performance testing

The causes of occupational accidents during the performance testing of a refrigeration system often stem from a failure to follow safety procedures and a lack of experience. When measuring the operating parameters, the technician may be at risk of electric shock from the measuring devices not being properly insulated or from them not disconnecting the power source before starting the test. This carelessness is often due to the technician being in a hurry or not being fully trained on safety measures.

A lack of personal protective equipment is another common cause of occupational accidents. The technician often has to work near rotating or high-temperature parts, and the failure to wear gloves, safety glasses, or other protective gear can lead to serious injuries such as burns or getting a hand caught. An unsafe work environment, such as a slippery floor or a cramped work area, also contributes to the risk of accidents.

Contact with the refrigerant during performance testing is also a major cause of occupational accidents. If the system leaks and the technician does not detect it in time, they may inhale toxic gas or come into direct contact with the refrigerant, causing poisoning or frostbite. The cause is often due to not using specialized leak detection devices or not thoroughly checking the system before starting work. A lack of training on how to handle and protect oneself from the risks of the refrigerant also increases the risk of accidents.

4. Measures to prevent occupational accidents during performance testing

Measures to prevent occupational accidents when testing the performance of a refrigeration system include strict adherence to safety procedures and the use of personal protective equipment. Before measuring the parameters, the technician must ensure that the power source is disconnected and that the measuring devices have been thoroughly checked for safety. The use of insulated measuring devices and compliance with technical instructions help to reduce the risk of electric shock.

The use of personal protective equipment is an important factor in protecting the technician during the test. Wearing gloves, safety glasses, and protective clothing helps to prevent accidents such as burns, getting a hand caught, and eye injuries when working near rotating or high-temperature parts. The technician should be trained on how to properly use protective equipment and understand the importance of self-protection in all situations.

To prevent risks from the refrigerant, the technician should use specialized leak detection devices to detect leaks early. Working in a well-ventilated area and wearing a respirator if necessary helps to reduce the risk of gas poisoning. Continuous training on measures to handle a leak and knowledge of the types of refrigerants help the technician to be always ready to deal with emergencies. Strict adherence to safety measures not only protects the health of the technician but also ensures the refrigeration system operates efficiently and stably.

Complete the occupational safety training course to be issued an occupational safety card by the occupational safety training center to complete your work file in accordance with regulations.

5. Occupational safety regulations for performance testing

The occupational safety regulations for testing the performance of a refrigeration system are a necessary factor in protecting the technician and ensuring the system operates efficiently. Before measuring the parameters, the technician must disconnect the power source to avoid the risk of electric shock. The use of measuring devices that have been regularly inspected and maintained is mandatory to ensure safety during work. The technician should follow the technical instructions and safety procedures when working with the electrical system and measuring devices.

The use of personal protective equipment is a mandatory regulation to protect the technician from potential hazards. Wearing gloves, safety glasses, and other protective gear helps to reduce the risk of injury from contact with rotating or high-temperature parts. The technician must be trained on how to use and maintain personal protective equipment, as well as understand the importance of complying with safety measures during performance testing.

For refrigerants, the safety regulations require the technician to use specialized leak detection devices to promptly detect leaks. Working in a well-ventilated area and using a respirator if necessary helps to reduce the risk of gas poisoning. The technician needs to have a solid knowledge of the types of refrigerants and how to handle an incident. Adherence to occupational safety regulations not only protects the health of the technician but also ensures the refrigeration system operates stably and efficiently, helping to prevent serious incidents.

6. Handling emergency occupational accident situations during performance testing

Handling emergency occupational accident situations when testing the performance of a refrigeration system requires the technician to have a good understanding of first aid procedures and to react quickly. When an accident from electric shock occurs during the measurement process, the technician should immediately disconnect the power source to ensure the safety of themselves and their colleagues. Then, provide first aid to the victim by checking their breathing and heart rate, performing CPR if necessary, and calling for an ambulance for timely medical assistance.

In case of an accident related to rotating or high-temperature parts, such as a burn or getting a hand caught, the equipment should be stopped immediately and first aid provided on the spot. If burned, the technician should rinse the wound under cool running water for at least 10 minutes and cover it with a clean cloth. If a hand is caught or there is another injury, try to keep the victim still and wait for the ambulance to assist. At the same time, report the incident to the management for remedial measures and to prevent similar accidents in the future.

When faced with a refrigerant leak, the risk of gas poisoning is very high. The technician must quickly evacuate from the leaked area and wear a respirator if available. Move the victim out of the gas poisoning area and provide oxygen if necessary. Call for an ambulance and provide detailed information about the type of refrigerant and the level of exposure so that the medical team can prepare an appropriate treatment plan. Training the technician on emergency response procedures and fully equipping them with personal protective equipment are key factors in reducing risks and ensuring safety during the performance testing of a refrigeration system.

PART III: Further Reference