This section of the ZANDZ.ru website is aimed at specialists involved in the design and preparation of estimates for grounding and lightning protection for various objects. The section contains useful information, recommendations, examples of typical projects in PDF and DWG formats, a general list of volumes and work for drawing up estimates.
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Sample projects in DWG and PDF
Grounding project for a transformer substation
Transformer substation is one of the most popular objects, causing many questions and clarifications. Designing grounding for this facility requires special knowledge and attention to detail. See how to make grounding for a transformer substation!
Grounding and lightning protection project for oil tanks
Oil storage facilities, like any other facilities in the oil and gas industry, for obvious reasons, require special protection from lightning. In regulatory documents they are classified as special ones that pose a danger to the immediate environment. That is why it is necessary to approach the creation of lightning protection solutions for such objects with special care. See an example of such a solution!
Warehouse lightning protection project using sandwich panels
An example of a lightning protection project for an object belonging to the class of fire hazardous zone P-IIa. The metal roof structure is used as a natural lightning rod.
Lightning protection and grounding project for a lighting tower
An example of a grounding and lightning protection project for a free-standing metal flange-type lighting mast 16 meters high with a diameter of 300 mm.
Grounding and lightning protection project for a restaurant under an artificial embankment
A unique example of a grounding and lightning protection project using a lightning protection mesh as lightning protection equipment and a grounding conductor at the same time.
Lightning protection project for a railway loading and unloading overpass
Project for lightning protection and grounding of a two-way railway loading and unloading rack for servicing railway tank cars, with transfer ramps and entrance stairs.
Communication cabinet grounding loop design
Design of the grounding circuit of a communication cabinet (telecommunication cabinet) of an intermediate point of selective railway communication. The purpose of grounding is to ensure normal operation of the equipment located in the cabinet. Soil resistivity 150 Ohm*m. The solution is presented in the form of five vertical electrodes made of copper-plated steel, connected by a strip.
Car service center lightning protection and grounding project
Lightning protection and grounding project for a car service center with dimensions of 30.4x15.3x5.8 m and soil resistivity of 500 Ohm*m. A solution based on vertical lightning rods 16 m high and ZANDZ electrolytic grounding kits.
Lightning protection project for a shopping center
Shopping and entertainment centers, malls and large stores often become a real headache for designers. One of the problems they face is maintaining the aesthetic appearance of the object and reliable protection of these objects. We bring to your attention an example of a successful solution to such a problem!
Grounding and lightning protection project for a residential apartment building
Despite the fact that residential buildings are a common type of object, lightning also strikes them and is also dangerous for them. Considering the “construction boom”, the topic of lightning protection of residential buildings has become very popular in design. We bring to your attention an example of a project for lightning protection of a residential apartment building!
Chapel lightning protection project
An example of a complex solution project for a chapel, including grounding with a resistance of 5.53 Ohms, lightning protection using a natural lightning rod, and surge protection.
Grounding and lightning protection project for data centers (data processing center, data center)
An example of a set of measures to protect against direct lightning strikes and dangerous interference for highly sensitive data center equipment!
Lightning protection and grounding project for a closed stationary gas control point (GRP)
An example of a set of measures for protection against direct lightning strikes and dangerous pickups for gas outlet and breathing pipes
Stadium lightning protection project
An example of a set of measures to protect against direct lightning strikes and dangerous pickups for a stadium
Lightning protection and grounding project for a production building
An example of a design for a chemical substances production building with dimensions of 2.2x6x6.75 m (LxWxH). In accordance with the explosion hazard classification according to the PUE, the premises of the protected building belong to category B-I.
Lightning protection and grounding project for a radio broadcasting center
Project of lightning protection, protective and technological (functional) grounding of a radio broadcasting unit with dimensions of 12.5x10x8 m.
Grounding project for an elevator (elevator equipment) in a business center
An example of calculation, diagrams and drawings of a typical grounding project for a passenger elevator in a business center with a calculated resistance of the grounding device of 2.25 Ohms. Number of floors of the building: 10 floors. Dimensions of the building in plan: 58x18 m.
Lightning protection project for a railway terminal and station
Specific soil resistance at the site: 150 Ohm/m. Construction – metal frame, concrete, flat roll roofing in the main building, metal steel covering over the access roads (station). Ventilation and air conditioning equipment is located on the roof.
Lightning protection project for a covered metro bridge over the river
Main span: 900 m. Total length of the bridge: 2145 m. Specific soil resistance at the site: 30 Ohm/m. Construction: metal frame, flat roof, reinforced concrete supports.
Lightning protection and grounding project for trade pavilions at the market
Construction: metal frame, corrugated roofing, metal frame of skylights. Length of pavilions: 100 m. Antennas are installed on the roof.
Lightning protection and grounding project for a sewage pumping station (SPS)
Object: sewage pumping station with an above-ground reservoir. Task: calculation of external, internal lightning protection and grounding with a resistance of no more than 10 Ohms, to propose a solution for protecting the building and electrical equipment from surge voltages.
Lightning protection project for the museum building
Soil: loam. Soil resistivity: 150 Ohm m. Task: to calculate external, internal lightning protection and grounding with a resistance of no more than 10 Ohms.
Lightning protection project for a charcoal production plant
Object: building of a charcoal production plant. Building dimensions: 30x40x10 m (LxWxH), area: 1200 m2. Area of the territory where the object is located: 2800 m2. The building is the tallest building within a radius of 100 m. Expensive electrical equipment is used for production.
Lightning protection and grounding project for video surveillance system
Object: object with external video surveillance. Soil resistivity: 160 Ohm m. The calculated resistance of the grounding device is 7.14 ohms, which is less than the required value of 10 ohms.
Lightning protection project for an administrative building
Territory area: 500 m2. Total building area: 1100 m2. Specific soil resistance at the site: 300 Ohm/m. To protect the building and equipment on the roof, ZANDZ roofing cable lightning protection is provided.
Lightning protection and grounding project for a gas station
Object: a traditional gas station without a vehicle maintenance station. On the territory of the gas station there are a fuel dispenser under a canopy, a fuel tank farm, and an administrative building with a cafe. To protect gas stations from airborne explosions, it is planned to install three separate lightning rods (masts) 20 m high.
Lightning protection project for the Expocentre exhibition complex
Object: building of the Expocentre trade and exhibition complex. Construction – metal frame, flat roof. To protect the building and equipment on the roof, lightning protection is provided with ZANDZ mast lightning rods.
Lightning protection and grounding project for prefabricated modular buildings (block containers)
Object: rotation camp for 150 people. Modular building made of 64 standard block containers. Dimensions: 40x13.7 m. It is required to carry out calculations and create a design for lightning protection and grounding devices in compliance with the current normative and technical documentation.
Grounding project for a balun transformer type TST
Soil resistivity 100 Ohm/m. In this embodiment, the linear voltage is 380 V; accordingly, the resistance of the grounding device should not exceed 4 Ohms. The solution is a grounding device consisting of three vertical electrodes.
ZG "Lightning protection and grounding"
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Examples of cost estimates
Economic justification for the use of ZANDZ modular grounding (using the example of a 10/0.4 kV transformer substation)
Calculations of the design and resistance of grounding devices for 10/0.4 kW PTS using three equipment options. In all cases, identical design conditions are accepted, under which the final resistance of the grounding device does not exceed 4 Ohms and is in the range from 3.5 to 4 Ohms.
Applications:
- No. 1 - Technical calculation of a traditional grounding device made of angle steel
- No. 2 - Local estimate for grounding made of angle steel (file in .xls format)
- No. 3 - Technical calculation of a modular-rod grounding device made of copper-plated steel
- No. 4 - Local estimate for grounding from copper-plated grounding conductors (file in .xls format)
- No. 5 - Technical calculation of a modular-rod grounding device made of stainless steel
- No. 6 - Local estimate for grounding made of stainless steel (file in .xls format)
Real examples of grounding and lightning protection calculations
Our company receives many requests for grounding and lightning protection calculations for a variety of objects. ZANDZ.ru technical specialists are happy to respond to such requests and offer solutions that meet modern requirements.
See on a separate page examples of calculations for real objects: tourist base, train station, observatory, diesel generator set, antenna, school, restaurant on the water, stadium, warehouse, church, residential building, country house, etc.
Grounding and lightning protection
When creating and developing a power supply project for a building or facility, the designer’s attention should first of all be focused on organizing and designing grounding and lightning protection. It is these electrical protection systems that are designed to ensure reliable and safe operation of the electrical installation. What is this protection system used for? To avoid overvoltage in the network, which can occur due to a direct hit from a high-voltage lightning discharge, as well as other types of overvoltage, any electrical point of the network, device or equipment is connected to the ground through a grounding device.
Service for calculating the probability of a lightning strike on an object
You can use a unique service for calculating the probability of a lightning strike into an object protected by lightning rods, developed by the ZANDZ team together with JSC Energy Institute named after G.M. Krzhizhanovsky (JSC ENIN)
This tool allows you not only to check the reliability of the lightning protection system, but also to carry out the most rational and correct lightning protection design, providing:
- lower cost of design and installation work, reducing unnecessary stock and using smaller lightning rods that are less expensive to install;
- fewer lightning strikes into the system, reducing secondary negative consequences, which is especially important in facilities with many electronic devices (the number of lightning strikes decreases with decreasing height of lightning rods).
The functionality of the service allows you to calculate the effectiveness of the planned lightning protection in the form of understandable parameters:
- the probability of a lightning breakthrough into system objects (the reliability of the protection system is defined as 1 minus the probability value);
- number of lightning strikes into the system per year;
- number of lightning breakthroughs bypassing protection per year.
Having such information, the designer can compare customer requirements and regulatory documentation with the obtained reliability and take measures to change the lightning protection design.
To start calculating, follow the link.
