Effects Of Electrical Accidents

There are four type of electrical effects:

1. Electrical Shock:

a) 1mA

Mild electric shock.

b) 10mA

Severe electric shock that causes burns and loss of muscles control.

c) 100mA & higher

Electric shock that could be fatal.

2. Burns:

a) First degree burns

sign of redness on the skin can be seen.

b) Second degree burns

Skin to swell and contain liquid.

c) Third degree burns

Reach inside the body and can causes failure of muscular function.

3. Fire

a) Class A fire

Involves organic-based solids such as wood, paper, fabric, and other organic materials

b) Class B fire

involves liquid such as petrol, oil, diesel, turpentine.

c) Class C fire

Caused by gases such as methane and butane.

d) Class D fire

metal-based fire.

4. Explosions

There are several components in the workshop that may explode if they are wrongly connected to power source. A powerful explosion can cause fire.

Important Of Safety

1. Safety precaution is an important aspect in the use of electrical appliances.

2. A safe enviroment is necessary to avoid loss of life and damage to property.

3. Accident result from carelessness, equipment malfaunction and not adhering to safety rules.

Personal Safety

a) Clothing:

1. Wear workshop uniform.

2. Wear insulated,low-heeled shoes.

3. Do not wear any jewellery.

b) Attitude:

1. Report all breakdowns of equipment.

2. Inform the teacher for accident.

3. Plan activities before begin work.

c) Physical condition:

1. Physically fit.

2. Not eye sleepy.

3. Have good eyesight and hearing.

Safety Tool & Equipment

a) Insulation:

Method of protecting, covering and isolating electrical conductors using insulators to prevent the electrical current from flowing.

b) Earthing:

Method of connecting metal parts in an electrical circuit to the ground.

c) Protective device:

A device that reacts by disconnecting the circuit when there is an over flow of current

Safety Workshop & Enviroment

Workshop rules:

1. Ensure workshop has good qeration

2. Ensure workshop has enought lighting.

3. Ensure the workshop heat and clean.