"Safe Use of Electricity" PPT Courseware for Daily Use of Electricity 5

Description

"Safe Use of Electricity" PPT Courseware for Daily Use of Electricity 5

learning target

1. Understand the knowledge of safe use of electricity and have the awareness of safe use of electricity.

2. Understand common electric shock accidents and correct handling methods.

2. Types of electric shock

1. Low voltage electric shock

Human body contact with live and neutral wires

Human body in contact with fire line and earth

2. High voltage electric shock

arc electric shock

Step voltage electric shock

First aid for electric shock

1. For low-voltage electric shock accidents, the power supply should be cut off quickly.

(1) If the person who gets an electric shock is conscious, he should jump up and leave the ground with all his strength. Because his hands and feet are separated from the live conductor and the ground, the current flowing through the human body will disappear due to the loss of path, so that he can escape the danger. If the person who gets an electric shock is conscious, but feels flustered, short of breath, and pale. At this time, the person who was electrocuted should lie down and rest quietly on the spot. Do not let the person who was electrocuted move around to reduce the burden on the heart. Changes in breathing and pulse should be closely observed.

(2) If the person who gets an electric shock is unconscious, the rescuer should immediately pull down the gate or turn off the power switch, unplug the plug, and make the person who gets the electric shock quickly disconnect from the power source. The injured person cannot be touched before, otherwise more people will get electric shock; if If the power cannot be cut off at the moment, the rescuer should put on rubber shoes or stand on a dry wooden bench, wear thick plastic gloves on both hands, and use dry wooden sticks, poles, bamboo poles and other non-conductive objects to open the wires on the injured person. , wires, lights, sockets and other live items, isolate the injured person from the power source as soon as possible

(3) If the person who gets an electric shock is unconscious and has a heartbeat, but has stopped breathing or is breathing very weakly, the airway should be opened in time, and resuscitation measures such as mouth-to-mouth artificial respiration and extrathoracic heart massage should be performed. If artificial respiration is not performed in time, the heart will stop due to prolonged hypoxia.

(4) When the heartbeat and breathing of an electric shock victim have stopped and other injuries are present, cardiopulmonary resuscitation should be performed quickly, and then the trauma should be treated. For an electric shock victim with cervical vertebra fracture, the head should not be moved when opening the airway. Tilt your head back to avoid high paraplegia.

3. Principles of safe electricity use

1. Measures to prevent electric shock in household circuits

The switch must be connected to the live wire;

Screw-top light bulb, with live wire connected to the tail;

For electrical appliances with metal casings, the casings must be grounded.

2. Principles for safe use of electricity:

Do not come into contact with low-voltage charged objects, and do not approach high-voltage charged objects;

Turn off the power switch before replacing light bulbs or moving electrical appliances;

Do not get electrical appliances wet or damage the insulation;

Safety devices, sockets, wires, household appliances, etc. should be replaced in time when they have reached the end of their service life.

Class summary

1. Type of electric shock

Low voltage electric shock Single line electric shock

Double wire electric shock

High voltage electric shock High voltage arc electric shock

Step voltage electric shock

2. Principles of safe use of electricity

Keep away from high-voltage electrical appliances

Do not come into contact with low-voltage charged objects

3. first-aid

Cut off the power

Use insulators to separate the person who gets an electric shock from the electrified object

Keywords: daily electricity use teaching courseware, safe electricity use teaching courseware, New People's Education Edition ninth grade physics PPT courseware, ninth grade physics slide courseware download, daily electricity use PPT courseware download, safe electricity use PPT courseware download, .ppt format

For more information about the "Safe Electricity Use in Daily Life" PPT courseware, please click on the "Safe Electricity Use in Daily Life ppt ppt" tab.

"Safe Electricity Use" PPT:

Qingdao version of the second volume of third grade science, safe electricity use PPT, part one: household circuits. Household circuits are the circuits that supply power to household appliances, also called lighting circuits. For example, lights, televisions, washing machines, and refrigerators are all powered by household circuits. Enter the house..

Electricity PPT courseware 3 that is indispensable for "Safe Electricity Use":

"Safe Use of Electricity" is inseparable from the electricity PPT courseware 3 1. The harm of electric current to the human body There are three types of harm to the human body caused by electric current: electric shock, electric injury and electromagnetic field injury. 1. Electric shock refers to the passage of electric current through the human body, destroying the normal functions of the human heart, lungs and nervous system. 2. Electricity...

Electricity PPT courseware 2 that is indispensable for "Safe Electricity Use":

"Safe Electricity Use" Inseparable Electricity PPT Courseware 2 Creation Scenario With the development of science and the popularization of household appliances, modern life is inseparable from electricity. Who can tell us what benefits electricity has brought us? Electricity has brought so many benefits to people, will it bring...

File Info

Update Time: 2024-09-28

This template belongs to Physics courseware People's Education Edition Ninth Grade Physics Complete Book industry PPT template

Preview