SDPs Unvarnished

SDPs Unvarnished

The text in a good catalogue is correct but it does not contain all the truth. It urges us to buy and is therefore not obliged to justify the possibility of refusal to buy. In this respect, SDP catalogues are not an exception. There is something to think about here. The price of some devices is close to hundred thousand RUB. Saving is good, especially a clever saving. The consumer should clearly ...

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Meeting Colleagues in Saint Petersburg

Meeting Colleagues in Saint Petersburg

On June 17, 2021, the ZANDZ project representatives, their partners, and designers who are engaged in lightning protection and grounding met in Saint Petersburg. The participants of events spent their useful and pleasant time. A journey by a motor ship was made along rivers and channels of Saint Petersburg in an unusual route that was surprising even for the city residents. During the meeting, ...

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Lightning Protection of a Gas-Regulating Unit in the Moscow Region

Lightning Protection of a Gas-Regulating Unit in the Moscow Region

The ZANDZ Technical Center has received a request to calculate the lightning protection and grounding system for a gas-regulating unit (GRU) in the Moscow Region. Let us further consider a solution proposed by our specialists. Initial data: facility: gas-regulating unit (GRU); dimensions: 7 m x 2.5 m x 3 m; soil resistivity: 100 Ohm*m. Задача: calculate the lightning protection system; ...

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New Belarus Standard for Lightning Protection and Similar Standards in Russia: Key Differences

New Belarus Standard for Lightning Protection and Similar Standards in Russia: Key Differences

In the Soviet time, regulatory lightning protection document RD 34.21.122-87 was developed to determine requirements and criteria to the lightning protection system. However, after the Soviet Union break-up, newly formed republics began to develop their own regulatory documents having their specifics and differences. This article is dedicated to one of these standards effective in the Republic ...

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Lightning Protection and Grounding for A Concrete Plant in Permafrost

Lightning Protection and Grounding for A Concrete Plant in Permafrost

Last week, we told about the fountain grounding in permafrost in Yakutia. Our today's facility is also located in permafrost, but in another region. The customer requested to develop both grounding and lightning protection systems for a concrete plant. While lightning protection system was rather conventional, grounding is worth close attention.

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Wind Load to Lightning Arresters

Wind Load to Lightning Arresters

КАРТА 3. РАЙОНИРОВАНИЕ ТЕРРИТОРИИ РОССИЙСКОЙ ФЕДЕРАЦИИ ПО ДАВЛЕНИЮ ВЕТРА - MAP 3. REGIONS OF RUSSIAN FEDERATION IN TERMS OF WIND PRESSURE The article Wind Load to Lightning Arresters has been written to help designers in choosing lightning protection products meeting the Russian standards and regulations. Its first part sees into ...

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Design of Lightning Protection and Grounding for a Warehouse Made of Sandwich Panels

Design of Lightning Protection and Grounding for a Warehouse Made of Sandwich Panels

Please familiarize yourself with an example calculation of the lightning protection and grounding system for the warehouse made of sandwich panels. The facility is interesting in that the lightning arrester section and the current collectors were natural. The warehouse building is made of bearing metal columns along the perimeter with the step 6 m, and metal frames. 200 mm sandwich panels with ...

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Grounding for A City Fountain in Permafrost Region

Grounding for A City Fountain in Permafrost Region

ZANDZ Center has received this unusual request from Yakutsk. Not everyone know that Yakutsk has a status of the world's largest city in permafrost. There are fountains in Yakutsk as well as in any other city. The engineering system of one of the facilities under construction includes special pumps and control electronics. To provide reliable operation of the entire hydrotechnical system, the developer has used a grounding system with the resistance not more than 4 Ohm in a design.

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Webinar of Professor E.M. Bazelyan Titled

Webinar of Professor E.M. Bazelyan Titled "Is An Isolated Lightning Protection Feasible Today?"

Isolated lightning protection is not a new thing. In the Russian regulatory documents, including Instructions RD 34.32.122-87, a concept of standalone lightning arresters has already existed. They were not installed on a protected facility but were spaced apart from it for a particular distance in the ground and air. Actually, these were isolated lightning arresters. Their task is to avoid lightning current distribution along metal structures of the protected facility and thus prevent damage to internal equipment and people's injuries.

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Lightning Protection of a Lumber Storage in the Irkutsk Region

Lightning Protection of a Lumber Storage in the Irkutsk Region

One of recent inquiries received by the ZANDZ Technical Center includes a request to calculate the lightning protection system for the uncovered lumber storage in the Irkutsk Region. Such industrial facilities are common in our country because it is rich in forests. Therefore, we would like to share, with the specialists, our solution to provide lightning protection for such facility.

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Can a Lightning Strike Without the Rain?

Can a Lightning Strike Without the Rain?

The lightning seems to be a mandatory part of the storm. But it is not always like this. Sometimes, the discharges can happen even in a relatively clear day. This meteorological event is called a "dry storm". It took place on June 8, 2021 in North Berwick (Scotland). At around 11 o'clock in the morning, the son of Deborah DiPietro heard a loud crack. When he came out, he saw that the rocks in ...

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Record of the Webinar

Record of the Webinar "Selection and Installation of Surge Protectors for AC Powerlines According to European Surge Protection Standards"

Защита линий переменного тока от перенапряжения - Surge Protection of AC Powerlines Часть 2/2 - Part 2/2 Кристиан Маканда - Christian Macanda Май 2021 г. - May 2021 On May 18, the webinar "Selection and Installation of Surge Protectors for AC Powerlines According to European Surge Protection Standards" was held. Together with ...

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Lightning Protection of a Heliograph

Lightning Protection of a Heliograph

Heliograph allows observing the structure and dynamics of the sources of microwave radiation in the solar atmosphere. Special requirements are applied to such equipment, and they are described in the terms of reference. It is important to provide lightning protection and grounding system for the facility. The ZANDZ Technical Center has received a request to calculate the lightning protection for ...

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GALMAR GL-20035 Lightning Discharge Counter

GALMAR GL-20035 Lightning Discharge Counter

Now, it is much easier to track events in the lightning protection system. The lightning discharge counter records current pulses flowing along the drain buses of the lightning protection system. The device stores pulse parameters, time of its occurrence, and may accumulate up to 99 events. To provide prompt control, event indicators are located on the device panel. The information on the ...

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Protective and Functional Grounding: Combined or Individual?

Protective and Functional Grounding: Combined or Individual?

Protective grounding is the most common grounding we can see in electrical installations. Its main function is to protect people from electric shock, and equipment from its failure in case of emergencies. But there is one more task that requires grounding: equipment protection from interference. This is a low-voltage impact generally not capable of damaging the equipment or affecting physical ...

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ZANDZ Lightning Protection and Grounding Quiz: Get A Valuable Prize!

ZANDZ Lightning Protection and Grounding Quiz: Get A Valuable Prize!

Dear friends, we inform you on the start of the quiz. Please answer several simple questions, send a link to your social media profile, and win: a set of books by Prof. E.M. Bazelyan, a ZANDZ USB drive, or a ZANDZ Swiss knife. Complete Quiz rules: The ZANDZ Quiz is performed by the Internet resource "Lightning Protection and Grounding at ZANDZ.com" (hereinafter, the Quiz), from June 01, 2021 ...

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Lightning Protection of Communication Cabinets on the Building Roof in Almaty

Lightning Protection of Communication Cabinets on the Building Roof in Almaty

The communication cabinet is designed to collect, perform intermediate processing, temporary storage, and transfer of information. They are often installed in a server room. But, sometimes, there is no space, and communication cabinets are installed on the roof near the reception mast. The ZANDZ Technical Center has received a request to calculate the lightning protection for the communication ...

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Construction of an Ice Palace in Novosibirsk with the Participation of ZANDZ Engineers

Construction of an Ice Palace in Novosibirsk with the Participation of ZANDZ Engineers

In Novosibirsk, in the left bank of the Ob River, the construction of a new ice palace has been conducted since 2019.

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Can An Unfrozen Lens Zone Dimension Be Predicted in Electrolytic Grounding?

Can An Unfrozen Lens Zone Dimension Be Predicted in Electrolytic Grounding?

Permafrost grounding issues are particularly relevant for our country because such soils cover 2/3 of its territory.

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Lightning Protection and Grounding of a Cheese Factory in the Ryazan Region

Lightning Protection and Grounding of a Cheese Factory in the Ryazan Region

The ZANDZ Technical Center has received a request to calculate the lightning protection and grounding system for the cheese factory in the Ryazan Region. Let's further consider the solution.

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E.M. Bazelyan's Books for Practical Lightning Protection in the Russian Oil and Gas State University

E.M. Bazelyan's Books for Practical Lightning Protection in the Russian Oil and Gas State University

The library of scientific community at the I.M. Gubkin Oil and Gas Russian State University has been supplemented by the books dedicated to lightning protection by E. M. Bazelyan. Oil and gas facilities are subject to special requirements to lightning protection and grounding. Lightning protection and grounding systems design for such facilities may be very difficult and time-consuming. Books by ...

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Lightning Protection and Grounding of Waste Paper Warehouse

Lightning Protection and Grounding of Waste Paper Warehouse

The ZANDZ Technical Center has received a request to calculate the lightning protection and grounding system for a waste paper warehouse. Let us consider the solution proposed by our engineers.

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Webinar

Webinar "Selection and Installation of Surge Protectors for AC Powerlines According to European Surge Protection Standards"

Speaker: Christian Macanda, Head of Standardization and Production of the French company Citel, member of the Association of Standardization of France AFNOR Выбор и монтаж УЗИП в соответствии с европейскими стандартами защиты линий переменного тока от перенапряжения - Selection and Installation of ...

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GALMAR Lightning Arresters To Protect Flat Roofs and Equipment

GALMAR Lightning Arresters To Protect Flat Roofs and Equipment

There are many buildings created with flat roofs today. The advantage of this type of roof is evident: the possibility to locate process equipment (climate and venting devices, communication antennas, zenith illuminations, etc.) on the roof. The roof equipment as well as the roof itself need lightning protection. Lightning arresters for flat roofs GALMAR series GL-2112Х were developed ...

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Is There a Need in the Grounding Circuit Around the Building If a Reinforced Concrete Foundation Is Used as a Grounding Device for the Lightning Protection System?

Is There a Need in the Grounding Circuit Around the Building If a Reinforced Concrete Foundation Is Used as a Grounding Device for the Lightning Protection System?

The Russian practice of lightning protection has been successfully using reinforced concrete foundations of buildings as grounding devices for a long time. Even their gas-tar waterproofing does not prevent this. With the soil moisture above 3% and the area of an underground part of the foundation being more than 900 sq. m, it can drain the lightning current to the ground. Particular requirements ...

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