How to protect school from lightning?

How to protect school from lightning?

ZANDZ technical center received a task to calculate lightning protection for a school in the Kaliningrad region. The building has large dimensions and a variable number of storeys. These facts suggest the use of a large number of lightning protection equipment to meet all the necessary standards of protection.

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The story of how lightning protection has been developing in Russia and in the world

The story of how lightning protection has been developing in Russia and in the world

The first studies of lightning and the development of lightning protection methods began over 250 years ago. Despite this, modern lightning protection still leaves many questions open. 

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How to protect an object from ground currents?

How to protect an object from ground currents?

Ground currents is a kind of directed motion of particles arising in the ground. They got their name due to an unpredictable route that can pass through water pipes, gas pipes and other engineering equipment in the ground.

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A new series of webinars is open!

A new series of webinars is open!

The first webinar from the series "Surge protection" with an expert on lightning protection Miroslav Zelenkevich was held on 2 March. The first introductory online meeting "Zonal concept of lightning protection" is assigned to describe the basic principles of surge building protection of objects.

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Expert opinion on the protection of transformer substation

Expert opinion on the protection of transformer substation

On February 10 the eleventh webinar with Professor Eduard Meerovitch Bazelyan took place. The common problems of the designers associated with surge protection devices were studied at the webinar.

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What ground electrode is more effective: natural or artificial?

What ground electrode is more effective: natural or artificial?

As you know, there are two types of grounding: artificial and natural. In what cases it is possible to use this or that type of grounding, in our article.

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This is interesting! Lightning protection of agricultural constructions for chickens

This is interesting! Lightning protection of agricultural constructions for chickens

Buildings and structures are exposed to lightning during a thunderstorm and it does not depend on their height, construction materials and assignment. For the security of the facilities and their safety, it is necessary to carry out a complex of measures on lightning protection. 

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Is it possible to install grounding for structures built on top of an earth dam?

Is it possible to install grounding for structures built on top of an earth dam?

We have already written about grounding objects that are built on water. Grounding for such objects involves a vital set of measures to provide for the stable and effective operation of constructions and electrical installations that are located there. We are happy to share with you the latest interesting question that was sent to us in our group on Vkontakte.

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We are happy to invite you to a webinar on the Zone lightning protection concept!

We are happy to invite you to a webinar on the Zone lightning protection concept!

We are happy to invite you to the webinar on the Zone lightning protection concept!

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Is it allowed to mount an air termination network to roofing with mounting band?

Is it allowed to mount an air termination network to roofing with mounting band?

...Is it possible to use not a special holder for mounting a rod (like this one http://www.zandz.ru/molniezashchita/vneshnyaya/zazhim_na_krovlyu_plastik.html), but a simple mounting band, mounting the rod directly to a stainless steel sheet? I.e. attach it to the sheet with mounting band and self-tapping screws.

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Video recording of the webinar

Video recording of the webinar "Answers to questions about surge protectors"

Last Wednesday, 10 February, the eleventh webinar with professor Eduard Meerovitch Bazelyan took place. The main part of the webinar was a Q&A on the selection and usage of surge protection devices (SPD). Questions were received from designers in advance and passed on to the professor. Answers to these and other questions can be found in the video:

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Dependence of the intensity of lightning strikes on global warming

Dependence of the intensity of lightning strikes on global warming

It is a well known fact that global warming directly increases the chance that such natural phenomenons as tornadoes, storms and floods will occur. American scientists came to the conclusion in their research that global warming affects the frequency of lightning strikes as well. A 50% increase of lightning strikes all over the USA is predicted due to global warming.

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Price changes for ZANDZ and GALMAR goods

Price changes for ZANDZ and GALMAR goods

The majority of our goods is made from high-quality parts manufactured at the GALMAR factory in Poland. We do not want to lower the quality and look for cheaper replacements, so due to the considerable increase in the Euro exchange rate, we cannot maintain the previous prices fixed in 2014 for any longer.

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What should be done if the distance between down conductors is larger than recommended?

What should be done if the distance between down conductors is larger than recommended?

The Assistance and Questions page is continuously updated with new questions on the installation of grounding and lightning protection. And, of course, our technical experts are happy to help you by answering them. We believe that a joint discussion of the question is helpful not only for those who asked it, but also for those who have any connection to grounding and lightning protection. That is exactly why we suggest that you take part in discussing vital questions on our website!

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Don't miss out! A new webinar with professor E.M. Bazelyan on surge protectors!

Don't miss out! A new webinar with professor E.M. Bazelyan on surge protectors!

The webinar will be held on February 10, 2016, during which professor E.M. Bazelyan will give certain recommendations and show solutions to key problems when using SPDs (surge protection devices) in low-voltage electric circuits.

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New product from ZANDZ! Hurry to learn more!

New product from ZANDZ! Hurry to learn more!

We are happy to present a long-awaited new product to you! In the ZANDZ.ru catalog, high-rise wire-rope lightning protection has made an appearance.

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Features of a high lightning rod installation 35m+

Features of a high lightning rod installation 35m+

Almost every designer has faced the issue of high lightning rod installation. Discussion of this issue always results in a fierce dispute. Is it better to choose one high mast? Will it "sway"? How can the wind load be dealt with? Is it not better to install two separate lightning rods of a lower height? How are they supposed to be attached?

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Is installation of grounding and lightning protection necessary for a single-family house?

Is installation of grounding and lightning protection necessary for a single-family house?

Let's look at an example when no grounding was installed during construction of a residential building. In such a case, we can observe interaction between a person and electrical appliances that ends in a noticeable, although not strong, electric shock for the former. In this situation the human himself is "the grounding device". As in this case, the socket only has two wires: live and ground; there is no PE protection wire. Correspondingly, an electrical potential forms on the body of the electrical appliance and the current goes through the human to the ground. If grounding were installed, a breach in the isolation of an electrical appliance would not affect a person or be felt by them in any way, as the current would pass through the PE protection wire PE and go to "ground".

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Unbelievable! Lightning striking outer space - a mysterious natural phenomenon

Unbelievable! Lightning striking outer space - a mysterious natural phenomenon

The first information about lightning that strikes upwards and not into the ground was recorded by meteorologists in the 1920s. However, those findings were considered incorrect. Such lightning strikes were studied by scientists around the world, but were not confirmed. This natural phenomenon was also recorded during the flight of a Mig-21 fighter in 1974. It was only scientifically confirmed that lightning can strike upwards into the electrosphere in the 1980s.

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What do you need to know about grounding during construction?

What do you need to know about grounding during construction?

We are happy to share the answer to an interesting question that was sent to us in our Vkontakte group.

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How to keep a lightning

How to keep a lightning "under control"?

Not so long ago, we have wrote about the Thor Guard early warning systems that have gained popularity in the USA and all around the world. They make it possible to prepare and avoid the possible consequences of a lightning strike. What devices are to be used if there is a need to record the impact frequency and analyze the characteristics of a lightning strike?

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The first photo of lightning in the world!

The first photo of lightning in the world!

  • 12.01.2016

On 2 September 1882, photographer William Jennings took the very first photo of lightning. This was very important step for further studies on the structure of lightning.

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Merry Christmas and Happy New Year!

Merry Christmas and Happy New Year!

ZANDZ.ru team wishes you a Happy New Year and Merry Christmas and wishes you success and prosperity!

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How to install grounding in permafrost?

How to install grounding in permafrost?

This question has concerned experts for a long time. Taking into account that soil resistance increases as the temperature lowers, it is necessary to find a way to solve this problem. Grounding using standard vertical metal electrodes may be inefficient, as an increased number of such grounding electrodes will cause an increase of material and work costs. So how should this problem be solved?

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How to choose lightning rods correctly?

How to choose lightning rods correctly?

We are happy to present you with professor E.M. Bazelyan's latest article on the topic of "How to choose lightning rods?"!

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