How to achieve a low grounding resistance of 0.25-0.5 Ohm in 20 kV grids: solutions and guidelines

How to achieve a low grounding resistance of 0.25-0.5 Ohm in 20 kV grids: solutions and guidelines

The article presents an issue of achieving a low grounding arrangement resistance (0.25-0.5 Ohm) in 20 kV distribution grids with low-resistance neutral grounding. Challenges associated with regulatory requirements and possible solutions

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Five most popular materials in 2024

Five most popular materials in 2024

ZANDZ.com has been publishing useful materials for designers, installers, and specialists in lightning protection and grounding for over 15 years. The year 2024 was no exception. Throughout the year, our notes, articles, projects, and webinars attracted a lot of professionals, educated them, and promoted experience sharing.

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"Reasonable laziness is not a vice in practical lightning protection" - a new article by Prof. E. М. Bazelyan

The article by Prof. E. M. Bazelyan discusses the concept of "reasonable laziness" in practical lightning protection which helps engineers avoid meaningless and inefficient calculations with insufficient reliability of the initial data. The professor justifies the need to simplify approaches and avoid excessively detailed calculations that do not improve the final technical solution by giving examples from his engineering practice.

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Video of the webinar titled

Video of the webinar titled "Issue of Lightning Protection Improvement"

A webinar with Prof. Eduard M. Bazelyan "Issue of Lightning Protection Improvement" was held on December 18. Relevant issues and challenges faced by the modern lightning protection were discussed during the webinar. The participants considered key aspects affecting reliability and efficiency of the lightning protection systems, and shared the ideas of the ways to improve them.

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How to properly measure the resistance of a grounding arrangement?

How to properly measure the resistance of a grounding arrangement?

A new instruction article has been published on our website. It discusses the specifics of measuring the resistance of a grounding arrangement, typical errors the specialists may encounter, and basic safety principles when making such measurements.

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Rare photos: a lightning in the сyclone core, view from the space!

Rare photos: a lightning in the сyclone core, view from the space!

Two impressive photos taken by astronauts aboard the International Space Station have captured the eye of the tropical cyclone Bansi illuminated by a lightning, twice within just a few minutes!

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Join our Telegram channel

Join our Telegram channel

Our Lightning Protection and Grounding - ZANDZ.com chat on Telegram has been available for several years now. Its main purpose is to ensure quick interactions with the engineers of the ZANDZ.com Technical Center. The channel currently has 480 participants, including specialists of various levels and from various industries. They discuss crucial issues on lightning protection and grounding every day. The channel is open to everyone.

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Presentation of a new book by Prof. E.M. Bazelyan

Presentation of a new book by Prof. E.M. Bazelyan

Most recently, in the cozy atmosphere of the Signature Art restaurant, located in the center of Moscow, among friends and colleagues, the long-awaited presentation of a new book by Prof. Eduard M. Bazelyan titled "Emergency in lightning protection" took place. The rainy weather added some charm to the evening that passed in a warm and friendly environment, encouraging guests to open dialogue and discussion.

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Lightning protection of wind turbine blades with polymer coating

Lightning protection of wind turbine blades with polymer coating

An international paint coatings manufacturer, in collaboration with a wind energy technology developer, has developed a new polymer coating for wind turbine blades that protects them from lightning.

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We have revised the example of a shopping center's lightning protection design project

We have revised the example of a shopping center's lightning protection design project

We continue to update projects on our website. This time we have made changes in the project of lightning protection of the shopping center in accordance with the current Standards and Technical Documentation.

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Do you already use our calculators?

Do you already use our calculators?

Use convenient calculators to easily perform high-quality calculations for your lightning protection and grounding tasks!

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ZANDZ 40*4mm copper-plated steel strip is in stock

ZANDZ 40*4mm copper-plated steel strip is in stock

ZANDZ 40*4mm copper-plated steel strip is in stock!

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Safe positioning of electrolytic ground terminal: protecting the foundation from the talik zone

Safe positioning of electrolytic ground terminal: protecting the foundation from the talik zone

The filler of the electrolytic ground terminal contains salts that lower the freezing point of the soil. As a result, a talik zone is formed, where the soil's freezing temperature is lower than it would be under natural conditions.  If the electrode is installed too close to the foundation, the difference in the deformation of the thawed and normal soil can create an uneven impact on the foundation, causing tensile forces. This fact must be considered when designing and installing electrolytic grounding.

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The new book

The new book "Emergency" in Lightning Protection by Eduard Meerovich Bazelyan!

We have wonderful news to share with you, friends! The book titled "Emergency" in Lightning Protection" by Eduard Meerovich Bazelyan has just been released. This is the third book on lightning protection and earthing, in the creation of which we participated.

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We have updated the example of a lightning protection design project for a railway terminal and station

We have updated the example of a lightning protection design project for a railway terminal and station

A few years ago, we published a lightning protection design project for the railway terminal and station on our website. We have recently updated this project in accordance with the current regulatory and technical documentation and available equipment.

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How do you correctly design lightning protection for cultural heritage sites?

How do you correctly design lightning protection for cultural heritage sites?

The design of lightning protection comes with extra requirements that must be met because these kinds of structures were typically constructed prior to the development of the Standards and Technical Documentation for Lightning Protection. Preserving the items in the original state is one of these requirements.

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"In what cases can lightning ignite a gas mixture?" - new article by Professor E. М. Bazelyan

Professor Eduard Bazelian has published a new article on our website titled "In what cases can lightning ignite a gas mixture?". The subject of the article is the problem of lightning protection arrangements for facilities where gas is released into the atmosphere.

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Video of the webinar titled

Video of the webinar titled "lightning protection of explosive production and storage facilities"

The webinar titled "Lightning Protection of Explosive Production and Storage Facilities" was conducted on September 4, 2024. Dmitry Krasnoborov, the engineer of the ZANDZ Technical Center, was a speaker.

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New Securing Attachments for ZANDZ Lightning Protection Holders

New Securing Attachments for ZANDZ Lightning Protection Holders

When installing lightning protection, an important issue arises, i.e. how to maintain roof durability and water tightness. Drilling holes in the metal roof and walls to install holders may impair their integrity. Securing a holder using a self-tapping screw does not eliminate the corrosion and leaks at the points where the sheet metal was damaged. Rubber or polymer seals age and dry out due to UV and temperature drops, thus preventing the reliability issue.

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Join the ZANDZ Plugin for Revit Beta Testing

Join the ZANDZ Plugin for Revit Beta Testing

We have developed a special Revit plugin to simplify and accelerate the design of the lightning protection and grounding system in BIM. It is designed to automate essential processes, minimize errors and efficiently integrate lightning protection and grounding systems into the overall BIM model.

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The menu item

The menu item "online calculation of the lightning protection reliability" has been moved to another section

Dear friends! You can enjoy a unique opportunity to calculate the reliability of any lightning protection system and the probability of the lightning breakthrough to the facility! To provide this, we offered the Online Calculation Service at our website 8 years ago. We have improved the website design to reduce main menu items and now the link to the Online Lightning Protection Calculation Service is available in a new way: For designers => Calculations => Online Calculation of the Lightning Protection Reliability.

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New article by prof. Eduard m. Bazelyan:

New article by prof. Eduard m. Bazelyan: "electric safety of people in storm"

The article provides the Eduard M. Bazelyan's analysis of the IEC studies published in regulatory documents IEC 70646.1 Electrical Current Exposure to People and Pets. General Aspects and IEC 70646.2 Special Aspects.

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Lightning protection of a pneumatic frame structure in samara region

Lightning protection of a pneumatic frame structure in samara region

In addition to its quick and simple erection, pneumatic frame structures (PFS) may be used under various conditions. These structures may be installed on almost every foundation type (soil, concrete, etc.) in any kind of climate.

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How to provide a convenient access to a ground terminal?

How to provide a convenient access to a ground terminal?

Regular control over the system parts connection is required to provide the reliable operation of lightning protection and grounding systems.

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Underground utilities are dangerous when struck by lightning—a new article by Prof. E. М. Bazelyan

Underground utilities are dangerous when struck by lightning—a new article by Prof. E. М. Bazelyan

In the article, the professor describes the well-known problem of lightning current distribution in the soil. Despite the presence of multi-meter grounding electrodes, not all of the current goes into the ground; some goes to underground utilities.

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