Safety Handbook
Some electrical safety measures at home workplaces,trade village
Some electrical safety measures at home workplaces , trade village
Ensuring safety when using electricity in production is extremely important. Using the wrong power can cause great damage to people and money. Therefore, in order to avoid serious electrical accidents that can occur at any time, businesses and factories need to take safety measures when using appropriate power, in accordance with standards and regulations.
Safety measures should be taken when using electricity in production to avoid damage to people and property
Rules to ensure safety when using electricity
Here are some rules and safety measures when using electricity that workers and workers need to follow to avoid electrical problems:
- Power workers should be familiar with the electrical engineering, electrical appliances, electrical diagrams and locations and parts that may pose a hazard during the production process; have knowledge and ability to apply regulations on electrical engineering safety; know how to handle electric accident situations and provide emergency assistance to electric shock people.
- At least 2 employees are required to contact the wiring system, climb high, or in a closed room. In which, 1 person works and 1 person monitors, inspects and directs the entire job.
- Enterprises need to organize the inspection and control of operation in accordance with electric safety rules.
- For components and equipment of the electrical network, it must be carefully shielded to avoid danger when contact.
- When using electricity, it is necessary to select the correct voltage and conduct grounding or neutral wiring for electrical equipment in accordance with standards.
- Workers should use protective devices and personal protective equipment when working with electrical equipment.
Electrical safety engineering measures
One of the safety measures when using electricity to be noted is the measures related to electrical engineering:
- Before using electrical equipment, check the following issues: insulation between phase and shell, insulation between phases; allowed insulation resistance values.
- In dangerous high-voltage places, it is necessary to use interlock, signal light, danger sign and movement to prevent unintentional contact.
- An isolated transformer, low voltage and safety circuit breaker should be used when an incident occurs.
- Create protective corridors for overhead high voltage electrical line.
- Electric circuit opening and closing devices need to cover conductive parts. In particular, for the circuit breaker in the electrical distribution board should be placed in sealed metal box boxes with firm locks, grounded wires and the voltage used.
- Insulated boots are required when opening and closing the circuit breaker of the distribution board. Wet hands or sweaty hands are not allowed to open and close the circuit breaker.
With the above mentioned safety measures, it is hoped that this article will bring you the necessary knowledge to help ensure the safety of electricity in production at enterprises. .
7 notes when using electricity in the family
7 notes when using electricity in the family
Using compact bulbs saves electricity
Although the initial investment cost is larger than conventional incandescent bulbs, compact bulbs will be more economical in the long run due to using only 1/4 of the power and 8-12 times longer lifespan than normal bulbs and still provide the same brightness. When lighting incandescent light bulbs, only 10% of the electricity is used to glow, while the remaining 90% of electricity is only used to heat the bulb.
Check electrical wiring
Check conductors that use plastic enclosures. These have the disadvantages of being brittle, prone to cracking, melting or touching vessels. In particular, we need to strictly adhere to the principles of earthing wire, avoiding the risk of electric shock from leakage of household appliances.
If possible, you should equip an automatic circuit breaker for older hot and cold water heaters that can automatically disconnect when the electrical system is in danger of being unsafe.
Regularly check and maintain the electrical equipment
It is important to pay attention to the group of household electrical appliances such as irons, electric cookers, ovens, kettles, electric cookers … These are potential items of leakage, high risk of fire and explosion. The general principle of operation of this device is to use incinerators to heat directly or indirectly. If the product is of poor quality or improperly assembled, it is very dangerous.
Electric heater is a water heater that uses resistance wire (sewing wire) to convert electricity into heat energy. Due to its compact, simple structure, low cost, electric hot tub is used a lot in households or in dormitories, but this is also a product with high risk of unsafe for users. .
Do not open the electrical equipment with large capacity
Large-sized electrical appliances such as ovens, microwaves, electromagnetic cookers, electric cookers, rice cookers, irons, water heaters, etc. If the household electrical wire has a small section, it is easy to cause too load, which increases the risk of explosion.
Arrange food in the refrigerator properly
When you open the refrigerator door, warm air from the outside will overflow and replace the cool air inside, resulting in the cabinet needing more energy to maintain the temperature. Therefore, the more free space there is, the greater the chance that the outside air will enter. The arrangement of cold food, fresh food, green vegetables … according to the area to be easily removed, helping to shorten the opening and closing time is also a way to save electricity.
Cook rice only before eating 30-45 minutes
Do not cook rice with an electric cooker too soon, should only cook 30 to 45 minutes before eating to limit the time for warming, use a rice cooker with an appropriate capacity and capacity, the ability to clean the bottom of the pot, heaters.
Turn off the power when not in use
The power should be turned off when not using electrical appliances in the home, such as computers, printers, televisions, water heaters, etc.This will not only save electricity but also minimize the risk of loss. safety (fire, leakage).
Source: Electricity of Vietnam
Safe to use the refrigerator
WHAT NEEDS TO USE SAFE COLD STORAGE?
You should wash vegetables or fruits, wrap or cover strong-smelling food before you put it in the refrigerator to avoid damage to the refrigerator. You absolutely must not put hot food in the refrigerator because it will damage the cooling unit, affecting the life of the product.SETTING SUITABLE TEMPERATURE
Choose the right temperature for efficient freezing to suit the ingredients and quantity of the food. The refrigerator should be checked regularly with a thermometer to ensure that the food does not wither or spoil.
RESTRICTING OPENING OF REFRIGERATION DOOR
Limiting the opening of the refrigerator many times (especially in the summer) or leaving the refrigerator door open for too long as it will consume a significant amount of power consumption. This will waste more electricity and spoil the food, especially the food at the door.
For families with young children, you should note that children should not be close to the cabinet and open the door many times.
NOTICE WHEN CLEANING
After cleaning the refrigerator, put the plug in the refrigerator for about 30 minutes to operate before adding food. Wipe the shelves and containers dry with a soft towel while waiting for the cabinet to reach the required temperature.
WHEN LOSS
In the event of a power outage, try to open the fridge door as little as possible to keep the air cool for longer. Wipe off any standing water in the refrigerator and dry before re-operating the refrigerator.
WHEN WANT TO MOVE OR DRESS UP
- Unplug the power cord plug
- Remove all food from the contents to ensure it does not spoil.
- At least 2 people should move to ensure safety.
Do not place the cabinet horizontally because it can cause damage to the cabinet if the power plug works too soon (It should be plugged in after 4 hours to 24 hours)
- Use a tight belt to secure the cupboard
- When moving the cabinets should direct the cabinet door upwards
- After moving the refrigerator to a new location, wait at least 60 minutes and then plug in the power to operate the refrigerator.
PROBLEMS THAT MAY MEET IF THE USE IS improperly used:
OTES WHEN STORING DRINKING WATER:
Preserving carbonated drinks is a must. Carbonated beverages can be a source of explosion for electrical appliances. Keeping carbonated water in the fridge freezer will make it a bomb and a high risk of fire and danger to everyone in the family.
When putting carbonated cans in the freezer, carbonated soda can be very sensitive to temperature, hot or cold will turn it into a “bomb” and explode violently. Many people never pay attention to the manufacturer ‘s warning that “Do not heat or freeze ice to 0 degrees Celsius” and cause serious accidents when using carbonated drinks in the freezer.
GAS COLD STORAGE LEAK:
According to Dr. Phan Tuan Anh, a member of the Vietnamese refrigeration mechanical engineering community, the gas used in refrigerators is mainly traditional CFC (Chloro Fluoro Carbon) and LPG (Liquefied Petroleum Gas). CFC has the advantage of not igniting, not causing fire, but containing a number of toxic substances that pollute the environment and affect the ozone layer. LPG has main components of propane and butane, natural gas but has disadvantages of flammable, explosive …
When an incident occurs like a short-circuit compressor, gas will easily catch fire. So when choosing a refrigerator, you should also consider what kind of gas to use for refrigeration.
Also according to him, because the gas tank of the refrigerator has a sturdy steel cover, the ability to self-ignite and explosion only occurs when the gas leaks (welds, pipes …) are exposed to sparks (wire Electricity short-circuiting) causes a fire.
The risk of a refrigerator explosion is often found in old ones or due to welding repair, gas replacement many times, so there is dirt causing clogging of the connecting pipe from the condenser to the evaporator, reducing the cooling capacity, leading to pressure. System capacity is too high, flammable.
EXPERIENCE FOR USE AND MAKE REFRIGERATION REFRIGERATION
DO NOT BUY OLD COLD STORAGE
Many families or students can not afford to buy a new refrigerator, may think of buying an old refrigerator. However, you should not buy a refrigerator that is too old as it may have been badly repaired and sold on the market.
These refrigerators have expired the recommendations of the manufacturer each damaged, rusted, recharged gas repeatedly … bringing danger to the user again. If the cabinets do not make ice, cold temperatures are not effective, make noises … you need to hire a repairer that will be costly and not safe.
REFRIGERATION MAINTENANCE ONE-MONTH SINGLE
- Refrigerator should be serviced once a month to check the condition of machinery, gas tanks and refrigerator components to ensure that the refrigerator runs safe for users.
- Choose a reputable company to buy a new refrigerator
- Buy refrigerators from reputable electronics supermarkets, choose a reputable brand and have a clear warranty.
SOME OTHER NOTESRefrigerator should be placed away from heat sources such as stoves, gas cylinders, ovens, chemicals from 1m – 3m, away from walls 10-15 cm, away from direct sunlight, avoiding too humid space.
Some signs indicate a problem with the refrigerator
When a household refrigerator has problems such as: compressor running continuously without interruption; touching both sides of the refrigerator, the heater is abnormally hot, there is a strange sound coming from the compressor, the compressor is very hot, the filter is swollen and the phenomenon of dew … you should disconnect the refrigerator and have a mechanic repair it. to ensure safety.