Lightning Protection of a Car Assembly Workshop

Lightning Protection of a Car Assembly Workshop

Sometimes, we have to protect really large facilities against lightning. A car assembly workshop having a total area over 50,000 sq. m was one of them. Although the grid can be installed on buildings with flat roofs, it does not provide protection against direct lightning strike. The customer did not like this lightning protection method, therefore, lightning rods were the only option.

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Rolling Sphere Method: Pros and Cons

Rolling Sphere Method: Pros and Cons

Зона защиты - Protection zone The method has been a subject of detailed analysis during the webinars and in special articles. However, we have to repeat major considerations once again trying to persuade the designers to stop rolling an easily rolling sphere. Today, it is related to very active attempts to integrate the calculation method to the Russian lightning protection practice ...

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ZANDZ ZZ-6t and ZZ-6s: Grounding Sets for Single-Family Houses

ZANDZ ZZ-6t and ZZ-6s: Grounding Sets for Single-Family Houses

ZANDZ ZZ-6t and ZZ-6s grounding sets are intentionally designed to perform high-quality grounding for electrical equipment in a single-family house using a hammer drill or a jackhammer. With them, you can make grounding as a single 6 m rod, which is mostly sufficient for electrical installations in a typical country house without gas boiler and back-up power supply. The sets are similar in their ...

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Lightning Protection for 110 kV Electrical Substation

Lightning Protection for 110 kV Electrical Substation

We have received a task to calculate the lightning protection for the 100 kV electrical substation with a closed switchgear (CSW). It is technically easier to protect it against lightning than the substation with an open switchgear since it has a smaller footprint, and the entire high-voltage equipment is located in the same building.

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Webinar of Professor E.M. Bazelyan

Webinar of Professor E.M. Bazelyan "Key Measurements in Practical Lightning Protection"

Ключевые измерения в практической молниезащите - Key Measurements in Practical Lightning Protection Measurements in the lightning protection are often very unusual. Their results allow predicting soon storms, assessing actual efficiency of grounding arrangements and resistance of the protected facilities to lightning and continuing the research of the ...

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ZANDZ Foundation Rods Are Available In Stock!

ZANDZ Foundation Rods Are Available In Stock!

Standalone foundation rod is an excellent solution to create lightning protection systems for fire and explosion hazardous facilities or large facilities. They provide an easy to calculate, cost-saving and long-term solution to arrange first category lightning protection. Their use for large facilities allows avoiding complex and expensive lightning protection systems located at the facility ...

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Lightning Protection of A Filling Station for Mining Vehicles in the Krasnoyarsk Kray

Lightning Protection of A Filling Station for Mining Vehicles in the Krasnoyarsk Kray

Filling station for mining vehicles occupies a rather large territory designed for the access and parking in the course of filling large quarry trucks, including BelAZ. We need to protect the filling station as well as trucks with the height up to 4.7 m against lightning.

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Why Is Breakthrough Probability Estimated for an Averaged Lightning?

Why Is Breakthrough Probability Estimated for an Averaged Lightning?

Ток молнии, кА - Lightning current, kA This is a desperate measure. As it was mentioned, the specialist is interested in the breakthrough probability of the lightning having the hazardous current rather than in a breakthrough probability of the lightning to the protected facility as it can be estimated using a special calculation software. The results shown in Fig. 9 for a facility 30 ...

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Lightning Protection of Antenna Post of Main Cable TV Station

Lightning Protection of Antenna Post of Main Cable TV Station

An antenna post is an essential part of a cable TV station. The quality of the subscriber signal depends on the quality of signal transmitted from the antenna post output to the main station input. To provide reliable operation of the equipment, we have to install lightning protection and grounding system at the facility. Such facilities are classified as common according to the regulatory ...

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Will New Change No. 3 To SP 20.13330.2016

Will New Change No. 3 To SP 20.13330.2016 "Loads And Exposures" Affect Lightning Rod Calculations?

To avoid deformation of lightning rods under exposure of snow, wind, and other natural conditions, they should comply to the requirements provided in the Code SP 20.13330.2016 "Loads and Exposures". The document is based on SNiP 2.01.07-85 issued in 1985. Since the times that have passed from that moment, many changes have been introduced. Additional statistical material has been collected and ...

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Lightning Protection of a Rehabilitation Center in Irkutsk

Lightning Protection of a Rehabilitation Center in Irkutsk

Rehabilitation center is an organization providing physical, psychological, social, and moral restoration of people (rehabilitants) who have suffered from debilitating diseases of nervous and locomotor systems, sensory organs, etc., as well as those having psychic and behavioral disorders. The need for rehabilitation services has been increasing worldwide. Such centers require lightning ...

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When Does the Orientation Process Start?

When Does the Orientation Process Start?

We have to start with a well-known fact. Lightnings never strike an on-ground structure. Its channel was always taken by the opposite leader. The longer it is, the more efficient the catch is. We will try to get maximum from this experimental fact, the more so since the lightning arrester operation experience allows providing a material quantitative clarification to the foregoing. A concentrated ...

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Webinar

Webinar "Online Calculation of Lightning Protection and Grounding of a Vertical Steel Reservoir (VSR)"

Онлайн-расчет молниезащиты и заземления РВС - Online Calculation of Lightning Protection and Grounding System for VSR During the webinar, we will look into key aspects related to calculations of the lightning protection system for the VSR using the "Service for calculating the lightning protection reliability" based on the method for evaluation of the ...

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Video of Design of a Public Building in Moscow

Video of Design of a Public Building in Moscow

The work of the lightning protection designer becomes better due to the buildings introducing unusual constructive solutions. A recent project is interesting in its complicated architecture and mandatory requirement of the customer: to calculate the lightning protection level in the ENIN software only. The building is intended for the passengers waiting for their flights for a long time. Such ...

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Opposite Discharge from On-ground Structures in Storm Conditions

Opposite Discharge from On-ground Structures in Storm Conditions

The electrical field at the lightning rod's top having height h and radius r0 increases by h/(2r0) times compared to the electrical field Е0 in the ambient atmosphere. The excitation threshold for the opposite discharge being equal to 30 to 40 kV/cm with the ratio of field strengthening about 1,000 is provided in the environmental field 30 to 40 V/cm. Such a weak field is provided by even ...

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Lightning Strike Close to a Person (Video)

Lightning Strike Close to a Person (Video)

Two radio amateurs from Brazil have luckily escaped danger after the lightning strike. The incident took place on January 10, 2021, seven km off the Minduri town (in the southern part of the Minas-Gerais state). 44-year-old Jose Omar de Oliveira and his friend Claudio Araujo Resende have climbed a hill to check their radio equipment. The former has decided to capture approaching thunderclouds ...

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Lightning Protection of a Rotators' Camp in Yamal-Nenetsk Autonomous District

Lightning Protection of a Rotators' Camp in Yamal-Nenetsk Autonomous District

Rotators' camps are built for the servicing personnel near oil and gas fields. Such structures should be protected from lightnings and grounded. The facility is conventional according to regulatory documents and does not imply any specific requirements for the lightning protection, but it is important to protect the structure. The ZANDZ Technical Center has received a request to calculate the ...

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Lightning as a Control Subject

Lightning as a Control Subject

The electrical nature of the lightning has been known since the times of Franklin and Lomonosov. Today, we have got proven (although limited) lightning current recordings. It is formed upon contact between the lightning channel and the ground or an on-ground structure, such as a lightning arrester. It is known from the operations experience that the current value is weakly dependent on the ...

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Lightning Protection Standards of the Russian River Register

Lightning Protection Standards of the Russian River Register

In Russia, the classification society for the river vessels is named the Russian River Register (RRR). The organization was founded in 1913. One of the areas of the RRR activities includes the development of regulatory documents. The first rules governing the construction and operation of vessels were issued in 1915. Since then, they have been changed multiple times. The current "RRR Rules" ...

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Design for Grounding of a Balanced TCT Type Transformer

Design for Grounding of a Balanced TCT Type Transformer

The ZANDZ Technical Center has received a request to calculate the grounding for the balanced TCT type transformer located in an industrial building. It is also known that the soil in the site is sandy loam with the resistivity of 100 Ohm/m. According to item 1.7.101. of the EIC, the resistance of the grounding arrangement to which neutral wires of generators or transformers of single-phase ...

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Lightning Protection for an Observation Tower

Lightning Protection for an Observation Tower

In an observation tower, the personnel may be present 24/7 at any season, which means that, to protect their life and health, the personnel has to leave the tower during the storm. One would think that if the work schedule at the observation tower is correct, then we do not need to protect it against lightning. However, the observation tower should be provided with the lightning protection ...

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About Lightning Protection of Chimneys

About Lightning Protection of Chimneys

Why do we need to protect a chimney against lightnings? This is probably because it is very high? Why, indeed? Standard IEC 62305 and the Russian lightning protection document SO-153-34.21.122-2003 do not even mention chimneys. Previous Instructions for Lightning Protection RD 34.21.122-87 consider chimneys more carefully. First, they are considered as natural lightning arresters and are ...

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Active lightning arresters GALMAR GALACTIVE-1 and GALACTIVE-2 are withdrawn from production

Active lightning arresters GALMAR GALACTIVE-1 and GALACTIVE-2 are withdrawn from production

Due to low demand, active lightning arresters GALMAR GL-20015 GALACTIVE-1 and GALMAR GL-20016 GALACTIVE-2 are no longer delivered and produced. Similar GALMAR products are unavailable. If your design provides for the use of these products, contact ZANDZ Technical Center to choose the similar products offered by other manufacturers. All other products to create reliable and durable lightning ...

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Lightning Protection of a Toilet

Lightning Protection of a Toilet

Usually, according to regulatory documents, toilets do not need any lightning protection. There is no technical and economic sense in protecting it against lightning strikes, as it is much cheaper to build a new toilet. But in the described case, the customer has made a decision to protect the toilet. Considering high-ohmic soil, the customer wanted to use electrolytic grounding. The ZANDZ ...

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Most Popular Materials in 2020

Most Popular Materials in 2020

ЗАЩИЩЕНО И ЗАЗЕМЛЕНО - PROTECTED AND GROUNDED Summing up the previous year, we suggest recalling the most striking events. Throughout 2020, we prepared useful materials for you, conducted training webinars, and also talked about the most interesting projects carried out by our Technical Center. Thank you for appreciating our efforts! We are glad to have new subscribers on the ...

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