1. As a good conductor, is it more attractive to lightning than a glass rod?
The choice of lightning is first based on the height of the conductor, between several conductors, and it hits the highest. In addition, because lightning is usually on a rainy day, the fabric of the tent is a conductor of wet water, whether it is a glass or aluminum pole. Therefore, in the attraction of the lightning, more is determined by the height rather than the material.
2. How to prevent the tent from being struck by lightning?
The damage of lightning mainly comes from two aspects: 1 is direct cut, 2 is high voltage arc. To avoid direct splitting, the simple rule is not to be a high point in this area, and it's easy to get chopped up. The electric arc, which is caused by the high voltage of the lightning, causes an electric arc to be formed near the object after hitting an object. Therefore, in the absence of a high point, also avoid the adjacent high point camp, otherwise will be hit by the arc. Therefore, the ideal way is to choose the overall topography and vegetation height, and can keep a certain distance from the tall plants or buildings.
3. If it is hit, which is better?
In theory, the pole is unable to share the current through the body because it does not conduct electricity, while the aluminum rod ACTS as a parallel conductor to help the body absorb some of the current.
There have been cases in history where people who have been struck by lightning have survived because their clothes were all saturated with electricity. So, the more wet the tent, the more conductive the tent pole, the less harm it will cause after being hit. However, this can not avoid the huge damage caused by the high voltage arc, so once hit, it is extremely dangerous. In the case of lightning, there are two.
The situation:
1 is the glass rod and the aluminum rod which is the more direct ray. If you ignore the actual use, the aluminum rods are indeed more attractive. But in fact, because the tent whole has become a conductor, and the tent is usually not exposed outside the tent, the difference is not large. Of course the thunderbolt or a large number of metal bars outside the tent is not considered.
If hit, the pole and the aluminum bar are more likely to avoid damage.
Here's the problem:
A, we're talking about lightning tents rather than A direct hit the human body, there is no aluminum rod directly among the contact problem of the human body, so with this situation met wire rod dead are completely different.
B, lightning strikes the tent not directly hit the human body, at this time to avoid the current directly through the human body's injury but arc and high temperature. So the action of the rubber shoe principle is not appropriate in this case.
C. The tremendous energy of lightning must be transformed, and it is possible to generate electric arc and produce high temperature through the conductors. In any case, choosing the right camp to avoid lightning strikes is the right way to go. And aluminium pole tent, is theoretically safer choice. When lightning is very strong and there is no suitable terrain, you can even use sticks or tent pole to pull the longest, inserted on the ground of about 10 meters away from the tent, and they huddled in the absence of curtain rod tent.
So here's the conclusion:
1. If it is a rainy day, aluminum is no more dangerous than a glass pole, and it may be safer. Because at this point, no matter what pole tent will become a conductor, so focus on who can better absorb the current after lightning strikes.
2. If it is thunder, aluminum is more dangerous. This is the only time that the aluminum tent attracts lightning.
3. The selection of the account rod is only a minor lightning protection measure. The real key is to grasp the basic principles of the camp selection and the preventive measures for the lightning protection.