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Why doesn’t household electricity kill people?

Đăng ngày: 18/12/2018

Galaxy M&E protects family via these safety regulations and rules. When the risk of an accident does not exist, electricity will become a “friend” to the family.

According to electrical safety standards in the home environment, when the air is less than 75% humidity, the voltage is considered safe when the magnitude does not exceed 60 Volts. However, the current source of electricity for living and manufacturing in Vietnam is 220 Volts (for wire voltage). With this voltage, fatal accidents can occur at any time if the power user is careless or lacks knowledge about accident prevention.

Unlike the offices and factories, domestic electricity is used by the majority of people without technical expertise in electricity. Target users include infants, the elderly, the disabled, etc. It is impossible to understand and master hundreds of electrical safety rules and techniques. To completely eliminate the risk of accidents in the use of electricity, Galaxy Electrical Engineering (Galaxy M&E) offers the following 18 tips:

Failure to adhere to electrical safety rules is a leading cause of death - Galaxy M&E

Failure to adhere to electrical safety rules is a leading cause of death - Galaxy M&E

1. The electrical conductors from the purchased electric meters must be a good type of wire, with insulation insulating in accordance with the current voltage level. The wire cross-section is large enough to carry multiple electrical devices.

Conductor section is specified as follows:

For copper wire: 1 mm2 copper conductor can withstand up to 6 Amps

For aluminum wires: 1 mm2 of aluminum conductor can withstand a maximum of 4.5 Amps

According to the Galaxy Electrical Engineering experts, people should only use 70% of the allowable capacity of the conductor, respectively 4 Amps / mm2 for copper wires and 3.15 Amps / mm2 for aluminum wires.

According to the above formula, the air-conditioning power supply, heater and other power-consuming devices with the capacity of over 2 kW must have a cross-section of 2.5 mm2.

Conductors for lighting systems need a minimum cross-section of 1.5 mm2. Conductors for computers, fans or other consumer devices with a total capacity of approximately 1 kW need a cross-section of 1 mm2. Other devices smaller than 1 KW or larger than 500 W require a cross-section of 0.75 mm2.

2. Indoor electrical wiring system: from the end of the electric meter to the connection points, sockets must be placed in insulated pipes, including cases where the wires are underground or in walls.

3. A circuit breaker or a quick disconnecting device must be installed on the back of the galvanometer, at the main cord in the house, and at the end of each auxiliary wire branch. Install fuses in front of power outlets to quickly disconnect the electric current when there is a short-circuit or overload, to prevent electrical fires.

4. Do not touch the hands or any part of the body with electricity without the cover or flaking, broken, broken insulation of electric wires, power sockets, fuses, circuit breakers, switches, and wire connectors.

Curiosity of children is the risk of electrical accidents if adults do not take precautions Galaxy M&E

Curiosity of children is the risk of electrical accidents if adults do not take precautions Galaxy M&E

5. For families with young children, the power outlets must have plugs to prevent children from sticking their fingers or sticking sharp objects into the electric socket, causing fatal electric shock.

6. When using hand-held power tools such as hand-held drills, hand-held grinding machines one must wear low-voltage insulated gloves to prevent electric shock when the tool is detected.

7. Absolutely do not use wet, sticky hands to close the circuit breaker, fuse or touch the electrical connection points, and avoid any contact between the power line and the device.

8. When repairing electricity in your home, cut off the circuit breaker and warn family members to never turn on the switch / breaker. Before repairing, wear protective gloves, thick rubber / plastic sandals or stand on wooden chairs to prevent the earthing system from causing power leakage.

9. Do not place heating equipment near explosive objects to prevent fires in the house.

Eliminate the peeling of the power cord from household appliances | Galaxy M&E

Eliminate the peeling of the power cord from household appliances | Galaxy M&E

10. Do not use poor quality electrical equipment, wires, electrical appliances.

11. Absolutely do not use electrical appliances, electrical outlets with long wires in areas where young children often appear. Children often play, running and jumping, long wires will be an obstacle that causes children to fall, spill electrical appliances, disconnect wires to create electrical leakage.

12. Do not shoot firearms or throw earth, stones, household utensils, household appliances, or shoot firecrackers at electric lines or transformer stations because they may cause broken wires which can lead to electrical leakage spilling into the surrounding environment.

13. Do not install a TV antenna near power lines or stations because of storms or tornadoes that may cause the antenna to fall, which can cause short-term shock and electrical discharge.

14. Don’t carry objects near transmission lines and power stations of 15 kV that is within 2 m  to 4 m of transmission lines and substations of 110 kV in case of electrical shock.

The positions may be struck by lightning | Galaxy M&E

 

The positions may be struck by lightning | Galaxy M&E

1. House roofs; 2. TV antennas; 3. Chimneys, vents, skylights; 4. Telephone lines, internet cables; 5. Trees; 6. Garage gates; 7. Underground cable system; 8. Outside watering system

15. When there is rain, thunderstorms or storms, absolutely do not touch the electricity poles, transformer stations, electric masts, ground wires, galvanometer boxes, and breaker boxes.

16. When detecting fallen poles or broken wires, the viewers must not approach. Warn people around the dangerous areas and immediately notify the local authorities or power transmission company to take appropriate measures and dealings.

17. Check and disconnect electrical appliances (light bulbs, fans, air conditioners, irons, water heaters, microwaves) before leaving home.

18. Disconnect a circuit breaker before going on holiday or going away from home for an extended amount of time. This ensures the elimination of any incidents involving power consumption equipment.

Eliminate old electrical equipment, peeling insulation / insulation layer | Galaxy M&E

 

Eliminate old electrical equipment, peeling insulation / insulation layer | Galaxy M&E

Above are 18 essential tips for families when using electricity on a day to day basis. Applying the contents correctly and fully given by Galaxy M&E ensures safety when utilizing electricity. When the risk of an electrical accident does not exist, it becomes a useful and friendly appliance for all family members.

Galaxy M&E

 

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