On rainy days the ground is damp, and a broken wire, and how many meters should it be kept

1. If the low-voltage electric (220V, 380V) wire is broken on the ground, you can rest assured that you can walk through, (you will not have a problem if you step on the breakpoint barefoot) There is no unsafe factor.

Because it doesn't form a step voltage, you, the wires, and the earth are equipotential, and the voltage between your feet is 0, and no current flows through the body. It's just like a normal chassis grounding. If there is leakage at one end of the case, the operator will not be electrocuted.

2. If the high-voltage line above 10kV is broken and falls on the ground, you should keep a safe distance of at least 20 meters from it.

Don't panic once you get within 20 meters, as long as your feet are at the same distance from the landing point of the wire, you can jump off with both feet at the same time, or jump away with one foot.

Sprinkle some dry lime in the corner of the wall and put some coarse salt, the cost is not high. Because these things contain deliquescent characteristic substances, which can absorb water, and can dehydrate and die of cell structures, they can not only solve the problem of dampness, but also kill things that should not survive in the room (of course, people are not in the range of being killed), if conditions permit, increase the temperature in the room on the day of dehumidification, such as burning with an open flame to provide temperature, such as burning a large pot of alcohol (do not play with fire, playing outdoors at night is a bonfire, and changing it to daytime or indoor is arson) so, This will solve the problem of damp or mossy in your room.

The high-voltage wire will not be short-circuited in rainy days, the day between the two wires is wet, and it will not be short-circuited, because the distance between the two wires is relatively large, in a larger distance, even if the air is relatively humid, the resistance is very large, so it will not conduct electricity, on the tower where the high-voltage line is erected, the high-voltage wire is always hung under a long string of well-insulated porcelain bottles, so that the high-voltage line is insulated from the tower. In addition, when installing high-voltage power lines, do not drag them on the ground. Otherwise, due to the friction between the wires and the ground, the otherwise smooth surface is damaged, and many burrs appear, and these burrs will cause tip discharge, which will cause leakage.

There may be electricity, don't touch it, and don't pay attention to it too close!

First of all, it is necessary to keep a certain distance from the wire, and it is best to keep more than five meters if the voltage cannot be determined, and then report to the local power supply bureau.

Due to the dampness of the road surface, the electric current conducts electricity through the water, which is also a conductor. If the fire wire of a single-phase power supply line falls to the ground, it is easy for people to walk by on its side and form a stride electrocution.

The cause of stride electrocution: the current is along the lower body of the person, from the feet through the legs, crotch and to the feet and the earth to form a pathway, when the person is subjected to the action of high voltage and higher stride voltage, the feet will cramp, so that the body falls to the ground. This not only increases the current acting on the body, but also changes the path of the current through the body.

As a result, higher voltages may flow through the body's vital organs, such as from head to hand or toe, when stepping. So, it's safest to keep a distance.

Immediately leave in small steps, you can also jump and walk, to avoid the stride voltage electrocution, to stay away from the floor wire, you can call the ** alarm!

No. The 220V discharge distance is very small, generally in a few millimeters, and it will be fine if you don't contact it directly, but if you hang it on a damp tree on a rainy day, try not to touch the tree, and it will not produce a step voltage.

The wire is composed of one or several soft wires, covered with a light and soft sheath; A cable consists of one or several insulated wires wrapped around a tough outer layer made of metal or rubber.

Cables and wires are generally composed of three components: core, insulating cover and protective sheath. The characteristics of commonly used cables are as follows: CEF - ethylene propylene rubber insulated neoprene sheath, marine flame retardant power cable.

CVV - PVC insulated, PVC sheathed marine flame retardant power cable. Oxygen chamber wires often use BV, BX, RV, RVV series wires.

Among them: BV - copper core PVC insulated wire, long-term allowable temperature 65, minimum temperature -15, working voltage AC 500V, DC 1000V, fixed laying indoor, outdoor, can be applied openly or covertly. BX - copper core rubber insulated wire, the maximum use temperature is 65, applied indoors.

RV - PVC insulated single core flexible wire, the maximum use temperature is 65, the minimum use temperature is -15, the working voltage is AC 250V, DC 500V, which is used as the internal wiring of instruments and equipment.

RVV - copper core PVC insulated and sheathed flexible wire, allowing long-term working temperature 105, working voltage AC 500V, DC 1000V, used in wet, high mechanical protection requirements, often moving and bending occasions.

Actually,"Wires"with"Cables"There are no strict boundaries. Generally, the products with a small number of cores, small product diameter and simple structure are called wires, those without insulation are called bare wires, and the others are called cables; The larger conductor cross-sectional area (more than 6 square millimeters) is called a large wire, the smaller one (less than or equal to 6 square millimeters) is called a small wire, and the insulated wire is also called a cloth wire This is relatively simple and easy to understand.

The power cord is not in contact with the conductor and will not be electrocuted under normal circumstances. The conditions for electric shock are many. Dampness simply increases the likelihood that the wall will conduct electricity.

It doesn't matter if there is water at the end of the thread!! Have you ever heard of thunder on a rainy day and being struck by lightning because rain conducts electricity? The rain is not continuous!

There are two possibilities for you to be electrocuted: 1. Rain or thread contact with the human body. Pathways are formed.

2. High pressure breaks down the air to form charged ions, but the possibility of normal 220 is very rare. But there are safety risks associated with this. It is advisable to deal with it, this one is better to deal with, you can also say that.

Although the voltage of 220V is not enough to form a large stride point voltage range! But it's still dangerous under a rain-soaked tree! It's best not to go into the area under the canopy!

The floor step voltage of 220V voltage is not considered on dry ground! But in a humid environment, it's best to be 1 meter away!

As long as the point that the person touches is more than one meter away from the point where the wire leaks, the electricity will not be available to the person.

If the low-voltage electric (220V, 380V) wire is broken on the ground, you can walk with confidence, because it will not form a stepping voltage, the voltage between the feet is 0, and no current flows through the human body. It's just like a normal chassis grounding. If there is leakage at one end of the case, the operator will not be electrocuted.

If the high-voltage line above 10kV is broken and falls on the ground, a safe distance of at least 20 meters should be kept from it. Don't panic once you are within 20 meters, as long as both feet are at the same distance from the landing point of the wire, both feet can jump up and off at the same time, or you can jump away with one foot.

Magnet wire is an insulated wire that generates a magnetic field when energized or induces an electric current in a magnetic field. It is mainly used for motor and transformer coils and other related electromagnetic equipment. Its conductor is mainly copper wire, which should have a thin insulation layer and good electrical and mechanical properties, as well as heat, moisture, solvent resistance and other properties.

Different properties can be obtained by using different insulating materials.

1. If the high-voltage line above 10kV falls on the ground, the individual should keep a safe distance of at least 20 meters from it. Once you are within 20 meters, you don't need to panic, as long as your feet are at the same time at the same time at the same time with the wire landing point, both feet can jump up and jump away at the same time, or you can jump away with one foot.

2. The live wire of the single-phase power supply line falls to the ground, and people walk on its side to easily form a stride electric shock, and the safety distance mainly depends on the humidity of the ground and the level of the power supply voltage. 220V voltage live wire, ordinary ground safety distance of 5-8 meters, water surface safety distance of more than 10 meters.

The so-called step voltage refers to the voltage between the feet of a person walking in the potential distribution area around the ground current entry point when the electrical equipment has a ground fault.

When a live wire of an overhead line breaks off and falls to the ground, the potential of the landing point is the same as that of the live wire, and the current will flow from the landing point of the wire to the ground.

Precautions for stepping voltage:

1. Use a variety of forms and various publicity media, such as blackboard newspapers, village broadcasts, villagers' meetings, movies, fields, classrooms for primary and secondary school students, etc., to publicize the common sense of safe electricity use, and talk about the hazards and consequences of step voltage electric shock.

2. The village electrician is responsible for the spring and autumn inspection of all power equipment in the power supply area of the village every year, implementing safety measures, plugging loopholes, and preventing accidents.

3. Overhead lines and household lines should be maintained frequently, and comprehensive inspections should be carried out on a regular basis, in case of severe weather such as wind, rain, snow, fog, hail, flood, etc., and the peak season of electricity consumption should be increased, and the number of inspections and night inspections should be increased, and the equipment and lines that endanger the safety of electricity should be dealt with in a timely manner or emergency measures should be taken to suspend power supply.

4. After the power failure or leakage protector action in an accident, it must be inspected immediately and the power transmission can be resumed only after the fault is eliminated.

5. When working or walking, you must be extra careful, and stay away from the landing point of the wire when you find that the equipment has a grounding fault or the wire breaks to the ground.

6. Once you accidentally step into the landing site of the broken wire and feel the stepping voltage, you should quickly put your feet together or jump away from the landing site with one foot.

7. When you have to go to the disconnection point to save people or troubleshoot, you must wear insulated boots.

If it's a 220V wire, ignore it, it doesn't matter if you step on it, there is no safe distance, if it's a high-voltage line, 1 thousand volt meters, 10 thousand volt meters, 35 thousand volt meters, 100 thousand volt meters, 220 thousand volt meters, 330 thousand volt meters, 500 thousand volt meters.