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Anonymous users2024-01-24As long as the grounding is good, it generally does not pose a hazard. But from a safety point of view, it's better to be careful. Because the current will definitely pass through a good conductor.
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Anonymous users2024-01-23If you are struck by lightning, it is not safe because even the walls of the bathroom are not very dry and insulated, especially when the bathroom is in use.
But. What are the chances of your lightning rod being struck by lightning?
What are the chances that when your lightning rod is struck by lightning and you are taking a bath?
So it's still more practical to recommend that you don't take a shower when it's thundering - -bb
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Anonymous users2024-01-22The line you're talking about is the down lead.
When lightning strikes, a large amount of current flows through the down wire, which will cause a counterattack or side lightning strike on nearby grounded equipment, metal pipes, power lines, etc. In order to reduce and avoid this kind of counterattack, modern high-rise buildings use the internal steel bars of the building as the down line.
Because the steel bars are evenly distributed in the building, when there is a lightning current passing through, the electromotive force in each room is basically evenly distributed, and there will be no large potential difference between each room, and the lightning side attack caused by different potentials is avoided in the room space.
If you only have a single down wire around your home, and there is no room next to it, it is dangerous.
The grounding resistance of the lightning protection grounding device is less than 1 ohm. Lightning protection grounding is not isolated, grounding is divided into working grounding, protective grounding, repeated grounding, equipotential bonding (also divided into main equipotential bonding and auxiliary equipotential bonding), etc. GB14050 "System Grounding Type and Safety Technical Requirements" has detailed provisions for grounding. >>>More
Household installation ground, use galvanized steel pipe or galvanized angle iron, drive at least 2 meters into the ground, and the joint can be treated with anti-corrosion, and the galvanized will not rust. >>>More
Metal panels without electrical equipment do not need to be grounded.
According to Article GB50169-2006 "Code for Construction and Acceptance of Grounding Devices for Electrical Installation Engineering", it is stipulated that when copper wire is used for equipotential grounding, its cross-sectional area should not be less. >>>More
If you don't need to move the hard wire, you need to move the soft wire, the cross-section is not less than 6 square meters, which is required by the lightning protection specification, the grounding wire is directly connected to the earth's line, can also be called the safety return route, when it is dangerous, it will directly transfer the high pressure to the earth, which is a lifeline. >>>More