Electrical Wiring- Continued Class-01

With the progress of current science, the use of electricity is becoming essential in almost every aspect of human life. So every person needs to know about the usage of electricity. Different types of accidents occur in homes and industries due to recklessness, excessive bravery, ignorance, misuse of machinery, carelessness etc. So one must know about electricity and ensure proper safe use by knowing its usage techniques.

Safety and Security Procedures:

In English, it is said that safety first means the safety of work first. Safety at the start of work, safety during work and safety at the end of work should be considered. Conducting electrical work by following safety conditions properly is called safe work practices.

Important causes of electrical shock:

A. Causes of electric line

1. Over load 2. Short circuit 3. Earth fault 4. Over voltage 5. Under voltage 6. Sparky 7. Loose connections 8. Lightning and Surge etc.

B. Personal/Human Factors

1. Violation of electrical laws
2. If inattentive to work
3. worried at working time
4. Because of feeling scared and nervous
5. tired at working time
6. If you rush to work
7. Because of ignorance and lack of intelligence
8. In showing extra bravery
9. Switch to neutral
10. Supplying electricity without making sure that someone is working on the electric line
11. Touching a power line without being sure that there is power in the line
12. When working on electric lines wear helmet, apron, safety belt, goggles etc.

c. Causes of mechanical failure:

1. Due to using defective equipment and goods
2. Due to failure of maintenance and control equipment
3. If electrical machines, appliances or moving machinery are not properly earthed
4. If the insulation of the conducting wire is bad
5. If the rotating machine does not have a cover.

Consequences or damages of electric shock:

1. The heart may stop working
2. Current flowing through the body can cause muscle, nerve and tissue destruction
3. Contact with an electrical source can cause heat damage to that part of the body
4. Electrical shock can cause injury from falls
5. Ultra-violet rays can cause blindness in the eyes due to arcing
6. Arc can cause hearing loss.

Remedies for electric shock:

1. Electrical laws are not to be violated.
2. Be careful while working on electrical lines
3. Avoid working on electrical lines with anxiety
4. Do not work on electric lines with fear and nervousness
5. Avoid doing electrical work when tired or fatigued
6. We cannot effectively do the rushing work.
7. One should avoid ignorance and stupidity.
8. Can’t show excessive bravery
9. Put the switch in the neutral and connect the phase wire
10. Electricity should be supplied after making sure that no one is working on the electric line
11. Electrical lines should be touched with caution, making sure that there is power in the line
12. While working on electrical lines, you should wear a helmet, apron, safety belt, goggles, and so on.
13. Avoid equipment and goods that are defective.
14. We should use proper quality control and maintenance equipment.
15. Electrical machines, appliances or moving appliances should be properly earthed
16. Cables must be used with proper insulation

Actions to be taken in case of electrocution:

A. Rescue of the person affected by the accident:

1. A person who has been electrocuted should not be touched first.
2. If it is connected to the power line, turn off the current or the main switch and free the electrocuted person from the line.
3. Dry insulated materials such as pieces of wood, rope, dry cloth, rubber gloves can be used for extrication.
4. A person should not touch metal or wet objects when electrocuted from a live line.
5. If the situation is such that you do not want to stop the flow of the power line, then the person standing on dry or insulated material such as wood, rubber or plastic should be pushed free from the line.

B. First aid to the person affected by the accident:

1. An electrified person should be removed from the power line and given first aid.
2. Check the electrocuted person for pulse and breathing.
3. If there is no respiration, we should start artificial respiration.
4. If there is no heartbeat, I should apply light pressure on the chest to check for signs of life.
5. Under no circumstances should the affected person be left alone, rather the affected person should be kept in a dry and comfortable place. Try to talk to him.

Personal safety equipment

The use of the following safety equipment is of utmost importance to protect a person from possible harm or accident during workplace operations:

1. Eye protection or safety goggles
2. ear plugs
3. mask
4. Hand gloves or hand socks
5. Safety Sue
6. apron
7. helmet
8. Safety belt