The dangers of electricity

Definition of electricity and electric current

Electricity is made up of a number of small particles, and some particles continue to move and are not stopped unless those particles are stored in dry batteries or non-dry batteries, depending on the size of the batteries.

While electric current is defined as the flow that occurs in electric charges and the flow that passes through charged particles.

The dangers of electricity for human health

The body burns

The passage of an electric current through a body creates resistance to that current which prevents or impedes its passage, and resistance is usually in the form of heat which heats that body to high temperatures which can cause it to burn. severe physical burns that lead to the burning of body tissue, and from a physiological point of view, the effect of these burns is similar to burns resulting from burns with a flame or other high heat source, and burn with a current Electrical burns tissue under the skin and burn its internal organs, The risk of burns is proportional to the amount of voltage and the duration of exposure to the body.

Neurological effects

The human nervous system is severely damaged if exposed to a certain electric current, and this can be the most dangerous effect on humans. The nerve signals that regulate the body’s functions, its response, the processes of thinking, memory, and feeling, and these nerve signals are just electrical signals of precise voltage and current, hence the exposure of these sensitive cells to a large electric current will affect the amount of current and effort they produce.

And because the nerves in the human body are made up of weak tissues which are difficult to withstand electric current, the amount of damage can often be large, and the amount of damage and damage to nerves and brain caused by electric current is proportional to the amount and size of the injury, and these effects range from effects whose symptoms subside over time, such as tingling, numbness or difficulty moving limbs, which can sometimes remain permanent, and others Serious effects that affect the central nervous system may constitute a state of stupor, memory loss, severe seizures, or respiratory arrest resulting in death, and it should also be noted that some injuries lead to a state of mental disorder.

Effects on movement and muscles

As we mentioned, exposure to an electric current affects the electrical nerve signals sent by the nervous system, and one of the most important devices in the human body affected by this is the muscular system, so its ability to receive these nerve signals stops, and thus limits any muscle activity, when the muscles are exposed to an electric shock, they involuntarily contract and completely prevent movement, if a person holds an electrically conductive object, the muscles of the forearms responsible for bending the fingers contract harder than the muscles of the forearm responsible for extending the fingers, making the victim holding the electrical conductor whether it is a wire or the like, and unable to leave him Which worsens the injury and its severity, and the injured will never be able to get out of it unless the electric current is disconnected from his body and exposure to electric shock can enter result in suffocation or death; Because the effect of electric shock reaches the heart muscle and the diaphragm muscle that controls the lungs, and can stop them completely.

Effects on the heart

The heart is directly affected when exposed to an electric shock, as the current finds its way to the weakest points of resistance in the body, which are the blood vessels and nerves, ventricular fibrillation, which is usually fatal; Because all heart muscle cells move independently and inefficiently, and the heart will not be able to regulate its heartbeat, unless a defibrillator is used to regulate the heartbeat and save the victim, and a Current over 200 milliamps can stop the heart muscles from moving, although exposure to this current occurs in fractions of a second, and if an electrical current of 4 amps arrives, this causes complete paralysis of the heart muscle and it will not be able to pump blood at all.

Electrical risks to the environment

Electricity is a clean form of energy and is relatively safe to use, despite this it has many negative effects on the environment in its transmission and production, and among these negative effects are what is clearly visible as smog, there are other effects that cannot be seen with the naked eye, but they are harmful to humans. These negative effects start to appear before the construction of power plants and last for a long time, and their effects may not go away even if these plants stop functioning.

The production of electricity in power plants results in the release of numerous emissions that are harmful to the environment, and they are divided into solid, liquid, gaseous and radioactive emissions, which have negative visual effects, since the presence of power plants and power lines. False transport Many types of power plants vary in the extent of their effects and the damage to the environment. For example, fossil fuel power plants emit many toxic gaseous emissions such as sulfur and nitrogen oxides, carbon monoxide and carbon dioxide, and hydrocarbons, and solid emissions such as dust and dust. ash that remains suspended in the air. An energy that works using nuclear power, all of its solid, liquid and gas emissions are radioactive emissions that are very harmful to the environment.

Power transmission lines and the infrastructure used for power distribution also affect the surrounding environment. Power pylons and their extended lines distort the visual landscape, and affect vegetation and wildlife if these pylons are close to them, so some urban areas build underground power lines. certainly increases the cost.

How to prevent the dangers of electricity

  • Maintain it periodically.
  • Maintain power levels to avoid short circuits.
  • Keep liquid objects away.
  • Keep electric fences out of the reach of children.
  • Do not put sticks in the holds.
  • Take hours spent measuring high frequencies.

We must apply gentle, easy and simple methods to reduce the dangers of electricity, and this is done through full orientation and mindfulness, not approaching it directly, and putting safety valves on inside homes, factories and offices to prevent the occurrence of electric shock, and we should cover the bare wires and put them in their designated place, and not put any solid materials that conduct electricity, such as copper and others, thus avoiding electrical risks.

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