1. Set up lightning conductors.
2. Improve the insulation level of the line itself.
3. Use the top line of the triangle arrangement as a lightning protection cable.
4, to strengthen the protection of weak points of insulation.
5, using automatic reclosing device.
6, insulator iron feet grounded.
7, prevent direct lightning. Lightning rods are installed to protect the entire substation building from direct lightning strikes.
8. Line lightning protection. A lightning protection line shall be installed within the 1-2km section of the incoming line to avoid direct lightning strikes on the section of the line so as to prevent lightning voltage from invading the substation and damaging the equipment.
9, lightning protection of the power distribution device. In order to prevent lightning surges from invading substations along high-voltage lines and causing damage to power transformers, a group of valve arresters is installed on each section of the bus in the substation, and should be located as close to the transformer as possible.
10, high-voltage motor lightning protection. Use a FCD magnetic blower type arrester that is better for protection of rotating motors or a metal oxide surge arrester with a series gap and install it as close to the motor as possible.
11. The building storing explosives or flammable materials shall be equipped with an independent lightning rod or overhead lightning conductor so that the protected buildings and objects such as wind caps and discharge pipes protruding from the roof are within the protection scope of the air-termination device.
12. Lightning nets shall be laid on non-metallic roofs. All metal pipes and equipment in the room shall be well grounded and shall not have open loops to prevent induced overvoltages.
13. The low-voltage line shall be laid directly with the full cable; the overhead line shall be cabled to the household; the metal sheath of the cable shall be connected to the ground of the electrical equipment; and the lightning arrester shall be installed at the entrance and exit of the low-voltage overhead line. Overhead metal pipes, buried metal pipes or metal pipes in the trench shall be connected to the lightning protection grounding device when entering or leaving the building.
14, should stay indoors, and close the doors and windows; those who work outdoors should hide in the building.
15. Do not touch the antenna, water pipes, wire mesh, metal doors and windows, external walls of buildings, and keep away from live equipment such as electric wires or other similar metal devices.
16. Reduce the use of telephones and mobile phones.
17. Do not stand on the top of a mountain, on the roof of a building or other objects with high electrical conductivity.
18. Do not handle flammable items contained in open containers.
20" Hole Opener
Hole Opener,HDD Roller Cone Reamers,20 Inch Hole Opener,20 Inch PDC Hole Opener
CANGZHOU GREAT DRILL BITS CO., LTD , http://www.triconerockbits.com