Layout of lightning receptor

In order to maintain the artistic features of ancient buildings, lightning arresters should combine lightning protection belts with short lightning protection pins, and it is appropriate to weld short lightning protection pins with a length of 30-50cm on the corner lightning protection belt with downlead, so as to effectively receive lightning and guide it to flow into the earth. According to the law of lightning strike

Lightning protection belt should be laid along the front ridge of the building roof, roof cornice, inclined ridge, chimneys for hanging animals and alpine buildings. In order to reduce the electro-dynamic harm caused by lightning current, right angles and sharp bends are not allowed when laying lightning protection belts and down conductors.

Angle, should adopt the arc bending along the outline of ancient buildings, should ensure that the straight line distance of the opening part of the bending section is not less than110 of the total length of the bending section.

Metal objects and components such as the tops of ancient buildings, minarets, kissing animals, statues, treasure boxes, and bird-proof steel wire mesh under arches also belong to lightning arresters to some extent, and should be reliably connected with lightning protection devices. In addition, in the process of lightning protection detection, some

All kinds of antennas installed on the roof of ancient buildings should be removed or laid separately; Some ancient buildings need lighting, and other electrical lines, such as power lines for lighting or colored lights, are attached to the lightning receptor, which should be determined according to the structure of grounding devices in the installation of electrical devices.

Article 3.5.3 of the Acceptance Specification (GB50 169-2006), namely "Lighting power cord on the frame with lightning rod and lightning wire, shall be implemented. Cable with metal sheath directly buried in soil or cable penetrating into metal pipe must be used. Metal sheath of cable

Or the metal pipe must be grounded, and the buried length should be greater than 10m before it can be connected to the grounding network of distribution equipment or to power lines and low-voltage distribution equipment. "

Lead layout

If the number of lightning protection downlead is small, each downlead will bear a large lightning current, which is easy to produce lightning counterattack and lightning secondary harm effect. Therefore, when laying down the down conductor, it should be set as many as possible in the conditional environment and make full use of the pillars of the building.

Steel bars, but most of the ancient buildings are brick and wood structures, which can only be paved in the open. Of course, those with higher requirements for architectural art can be laid secretly. When laying, it should be noted that the down lead is evenly crimped or symmetrically arranged around the outline of the ancient building, and the spacing is in line with the specifications. In order to reduce the power of the downlead itself

Lightning induced overvoltage caused by induction should be laid in a short grounding path, and the bend of down lead should be bent by "soft connection". The down conductor should be well protected from the ground 1.7m and 0.3m, such as galvanized angle steel and decoration.

Plastic pipes or rubber pipes and other protective facilities, to avoid mechanical damage of down lead, and to prevent contact voltage hazards caused by personal contact. When using more than one down conductor, it is recommended to install a disconnect card 0.3m to 1.8m above the ground on each down conductor.

How to do a good job of lightning protection for ancient buildings. Zhengzhou Reddy Electronic Engineering Co., Ltd. is a high-tech enterprise specializing in intelligent integration of lightning protection system. The company is committed to the development, promotion and application of lightning protection technology and lightning protection engineering projects. Reddicheng

Founded in 2009, with a registered capital of 3 million yuan, it has obtained the Grade B qualification certificate of lightning protection engineering design and Grade B qualification certificate of lightning protection engineering construction issued by the National Meteorological Administration, and dozens of technical backbones have obtained the unified examination of provincial lightning protection by Henan Lightning Protection Center.

Engineering technical qualification certificate. To provide customers with all-round intelligent integrated solutions and services for lightning protection system information, including lightning protection engineering consultation, lightning protection system design, lightning protection engineering construction, technical training, lightning strike risk assessment and analysis, system engineering maintenance, etc.

How to do a good job of lightning protection for ancient buildings.

After years of hard work, Zhengzhou Reddy's customers are all over the government, military, telecommunications, electric power, transportation, education, petrochemical, railway, meteorology and other fields. The company provides direct lightning protection of various structures, grounding of various systems, protection of low-voltage power supply systems, and various

We have rich experience in the design and construction of lightning protection projects at home and abroad, such as line protection of communication systems. All completed projects have withstood the test of several thunderstorm seasons and have been highly recognized by lightning protection detection departments and users.