Avoid electric shock and handle it carefully after electric shock
In order to prevent the occurrence of electric shock accidents, we analyze several common forms of electric shock and the human body's response to electric current, so as to clarify the serious harm of current to the human body. There are four types of electric shock.
Single-phase electric shock; one part of the human body is in contact with one charged phase line (hot line), and the other part is in contact with the earth (or zero line), and the current flows from the phase line through the human body to the ground (or zero line) to form a loop. For single phase electric shock. In the event of electric shock, there are many cases of single-phase electric shock. For example, when repairing live lines and equipment, electrical equipment casings that are not protected or exposed to leakage and insulated wires may cause single-phase electric shock.
Two-phase electric shock; two-phase electric shock refers to electric shock when different parts of the human body are in contact with two charged phase lines at the same time. At this time, regardless of whether the power grid center is grounded, the human body is exposed to electricity under the influence of voltage, and the line voltage is high, which is very dangerous.
When the electrical equipment is short-circuited to the ground or the power line is grounded, a strong electric field is formed on the ground around the conductor. The potential distribution is that the potential diffuses from the grounding point and gradually decreases. When someone enters this area, it separates. There is a potential difference between the two legs. The current flows in from one foot and flows out from the other foot, causing an electric shock, called striding voltage electric shock.
Electric shock on the suspension circuit; after the mains has a transformer with primary and secondary coils insulated from each other, the voltage zero line from the secondary output is not grounded, and is suspended in relation to the earth. If the person stands on the ground and touches one of the belts Wire, generally no electric shock
The first time after the electric shock, the person should leave the power supply or the electric wire, and promptly perform first-aid measures for the person. There are several commonly used first-aid measures.
Artificial Breathing Method: Make the electric shocker lie flat on the back, tilt the head back, so that the tongue does not block the airflow, pinch the nose and breathe a breath, then release the nose and let it slowly return to breathing, about 12 times per minute. This method works well.
Thoracic extrusion method: The rescuer's hands are stacked, and the position is slightly higher than the heart socket (ie, a little between the two nipples). The palm root is pressed down by 3 to 4 cm, and the pressure is about 60 times per minute. After squeezing, the palm root relaxes quickly, allowing the electric shock to restore the chest itself, so that the blood fills the heart and restores the normal heartbeat.
The child can be squeezed with one hand, but the number can be as fast as 100 times per minute. Note: The rescue of electric shockers sometimes takes a long time, so you must be patient and uninterrupted. It is strictly forbidden to use unscientific methods in first aid, such as using wooden boards to press, shake your body, swearing, splashing with water, blindly It is a wrong method such as a strong heart, because it will only make the electric shocker who is dying or in a state of suspended animation, breathing more difficult, and the body temperature is further reduced, thus accelerating its death.
Compared with the general Kitchen Knives, utility knives are more compact and lightweight, with the advantages of convenient portability, suitable for outdoor using. The Utility Knife can be divided into the blade surface fixing, the blade face is not fixed, folding, telescopic, and pocket Knife,etc. Folding utility knives and telescopic utility knives are also found in the work, cutting a variety of small materials, kaifeng documents, cutting tape, cut rope and so on. This type of tool blade is thinner but with a sharp edge. According to various usage, we have designed a variety of utility knives,it must be one the suitable for you.
Utility Knife Kitchen,Utility Knife,Serrated Utility Knife,Pocket Utility Knife
YANGJIANG TRI-WIN INDUSTRY & TRADE CO.,LTD , http://www.triwintableware.com