UNIFICATION OF GROUNDING FOR LIGHTNING PROTECTION WITH GROUNDING FOR ELECTRIC INSTALLATIONS

UNIFICATION OF GROUNDING FOR LIGHTNING PROTECTION WITH GROUNDING FOR ELECTRIC INSTALLATIONS

Necessity to electrically connect the grounding contour of lightning protection, installed directly in the building with the grounding contour for electric installations, written in the existing regulatory documents (EIC). Quotation: "Grounding devices for protective grounding of electrical plants in buildings and structures, as well as lightning protection of the 2nd and 3rd category for buildings and structures, as a rule, should be common". The 2nd and 3rd categories are most widespread, and 1 category includes explosive objects to the lightning protection of which the requirements are very high. However, the phrase "as a rule" presumes the possibility of exceptions.

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SCREENED CHAMBER GROUNDING

SCREENED CHAMBER GROUNDING

  • 28.01.2019

Screened camera is a room for researches of bioelectric phenomena, the walla of which are shielding the chamber content (living organisms, units) from the affect of external electro-magnet fields. Resistance of the grounding device for such chambers should be 4 Ohm maximum. The ZANDZ Technical Center has recently received a request to calculate grounding for one of such screened chambers. Let's study the solution offered by our specialists.

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VIDEO. THUNDERSTORM IN MOSCOW ON THE EPIPHANY DAY

VIDEO. THUNDERSTORM IN MOSCOW ON THE EPIPHANY DAY

On the Epiphany night, 19 January 2019, Moscow citizens became the witnesses of a wonderful phenomenon - a thundersnow. There appeared video proofs of this rare phenomenon in social networks. Novody wonders when there is a spring thunderstorm with rain, but a thunderstorm in winter with snow - it was unexpected.

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INSTALLATION OF GROUNDING AT A NOVOSIBIRSK HOSPITAL

INSTALLATION OF GROUNDING AT A NOVOSIBIRSK HOSPITAL

We always try to show the site visitors our reports about the arrangement of grounding and lightning protection systems, installed by our partners. This time we present you a photo report about installation of grounding at the State Novosibirsk Regional university hospital. At the present time, it is one of the largest multi-speciality medical and preventive treatment institution in volumes and abilities of mdiagnostic and treatment assistance not only in the Siberian Federal District, but in the whole Russian Federation.

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EXAMPLE OF CALCULATION. GROUNDING OF A HOSPITAL IN NOVOSIBIRSK

EXAMPLE OF CALCULATION. GROUNDING OF A HOSPITAL IN NOVOSIBIRSK

Hospitals and medical center are the most responsible objects from the point of view of grounding quality. To ensure electric safety when using equipment in medical premises, a grounding device with a low resistance value is required. It is taken according to the Technical memo № 24/2009 of the Assosication "Roselectromontazh" and must be not more than 2,5 Ohm and for import equipment - up to 2 Ohm.

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TAGS ON ZANDZ SITE

TAGS ON ZANDZ SITE

Dear colleagues, we are constantly trying to make our site maximally comfortable for visitors. There is a field "Tags:" in all our news with the help of which it is possible to sort news on the topic you are interested in "in our click". For example, there is a tas "SPD" in the news about SPD and if to "click" on it, you can see the selection of news about this equipment.

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GROUNDING AND LIGHTNING PROTECTION OF AN ASPHALT-CONCRETE FACTORY IN THE CRIMEA

GROUNDING AND LIGHTNING PROTECTION OF AN ASPHALT-CONCRETE FACTORY IN THE CRIMEA

Asphalt-concrete factory buildings are metal structures which can be used as natural lightning rods. But sometimes customers require to protect all equipment located on the territory by free standing lightning rods. ZANDZ Technical center has recently recieved such a task. Let's consider what solution was offered by our specialists.

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WE CONGRATULATE YOU ON WINTER HOLIDAYS! :)

WE CONGRATULATE YOU ON WINTER HOLIDAYS! :)

Take congratulations and see our holiday schedule

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INCREASING PRICES FOR ALL GOODS

INCREASING PRICES FOR ALL GOODS

Dear colleagues, in connection with the increase of the VAT rate, we are obliged to increase prices by 2% for all products presented on the ZANDZ.ru website (lightning protection, grounding, energy saving).

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HOW TO CALCULATE TECHNOLOGICAL GROUNDING: WE ARE CONSIDERING A REAL EXAMPLE

HOW TO CALCULATE TECHNOLOGICAL GROUNDING: WE ARE CONSIDERING A REAL EXAMPLE

Technological grounding is required for the correct operation of electronic equipment. At customs points, a thorough inspection of goods is carried out, for this different electronic appliances are used.

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GROUNDING IN THE CELLAR OF THE PRIVATE HOUSE - IS IT POSSIBLE

GROUNDING IN THE CELLAR OF THE PRIVATE HOUSE - IS IT POSSIBLE

When constructing a private house in a relatively small area, the problem of grounding often arises. Often, near a well-maintained house, it is simply not possible to find the necessary place to construct a grounding device. At the same time, in the cellar there is soil in which the grounding can be digged in.

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TOP 7 MATERIALS OF 2018 ON LIGHTNING PROTECTION AND GROUNDING!

TOP 7 MATERIALS OF 2018 ON LIGHTNING PROTECTION AND GROUNDING!

Top rated articles, news, webinars and videos by ZANDZ readers in 2018

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LIGHTING PROTECTION OF THE SHIFT TEAMS BUILDING IN YNAO

LIGHTING PROTECTION OF THE SHIFT TEAMS BUILDING IN YNAO

Providing electrical safety for buildings where people live working on a rotational basis is no exception, because any force majeure can cause unpleasant consequences.

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NEW YEAR'S DISCOUNT OF 30% ON A SET OF BOOKS BY PROFESSOR E. М. BAZELYAN

NEW YEAR'S DISCOUNT OF 30% ON A SET OF BOOKS BY PROFESSOR E. М. BAZELYAN

Find time to buy two books on lightning protection at a very competitive price!

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LIGHTNING STRIKE AT SCHOOL IN NEW ZEALAND

LIGHTNING STRIKE AT SCHOOL IN NEW ZEALAND

Hamilton North School staff from New Zealand told about the incident, which occurred in the middle of a working day and was accompanied by a strong heat flash and a big explosion. About 13:30 local time, lightning struck the goalposts on a rugby field and then jumped to the school building.

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GASOLINE FILLING STATION GROUNDING IN THE SIBERIAN FEDERAL DISTRICT

GASOLINE FILLING STATION GROUNDING IN THE SIBERIAN FEDERAL DISTRICT

Explosive objects, such as gasoline filling stations, shall be grounded. In particular, it will focus on grounding the fuel storage and refueling islet in the Siberian Federal District.

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GROUND RESISTANCE CALCULATION IS ALMOST SIMPLE

GROUND RESISTANCE CALCULATION IS ALMOST SIMPLE

Dear colleagues, there is no need to explain how important it is to be able to correctly and quickly calculate the ground resistance. The designer is often faced with this work. In the book "Practical issues of lightning protection" М. Bazelyan wrote a whole chapter on the method of calculating grounding resistances. All the main issues seemed to be considered there. Part of the material from the book was later analyzed at webinars.

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EXAMPLE OF GROUNDING CALCULATION FOR CHEMICAL REAGENTS WAREHOUSE

EXAMPLE OF GROUNDING CALCULATION FOR CHEMICAL REAGENTS WAREHOUSE

The protection of industrial buildings and structures is always given increased attention, especially when it comes to electrical safety. The organization of grounding is a mandatory event during the construction or reconstruction.

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NON-ELECTRODE METHOD FOR MEASURING GROUND RESISTANCE

NON-ELECTRODE METHOD FOR MEASURING GROUND RESISTANCE

Grounding parameters depend on many factors, and not all of them can be taken into account in the calculations. Therefore, after mounting the grounding, it is recommended to repeatedly measure its resistance at different times of the year. Grounding elements can oxidize and corrode, so it is also necessary to periodically measure the ground resistance even after you have verified that everything was done correctly. The standards available in Russia require measuring the ground resistance of electrical installations at least once every 12 years. For power poles with disconnectors, protective gaps, arresters, re-grounding of the neutral wire, the measurement of ground resistance is carried out annually. Also, annually selectively they measure grounding parameters at 2% of metal and reinforced concrete supports of power transmission line poles passing in populated areas.

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PD (Surge protection device) - RELIABLE PROTECTION FOR COMPLEX ELECTRONICS

PD (Surge protection device) - RELIABLE PROTECTION FOR COMPLEX ELECTRONICS

The need to protect power networks from surge voltage arose almost immediately after people learned how to transfer electricity within a neighboring building. Often the cause of surge voltage is a lightning strike to a power line or the effect of lightning striking close to the cable. But there are other reasons, for example, switching processes in electric substations. Normally they should not lead to the appearance of dangerous surge voltage in the network, but in reality such surges appear due to worn-out equipment or insufficient staff qualifications.

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EXAMPLES OF USING GL-11521SS AND GL-11525

EXAMPLES OF USING GL-11521SS AND GL-11525

Lightning protection and grounding systems are very specific and require certain preparation, both in case of holding calculation and design and during performance of construction works. Examples of using the equipment will allow to form the idea about the designation, means and peculiarities of using this or that GALMAR and ZANDZ equipment, will improve the professionalist and quality of ...

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LIGHTNING PROTECTION OF BLOCK-BOXES IN LENINGRAD REGION

LIGHTNING PROTECTION OF BLOCK-BOXES IN LENINGRAD REGION

Block-boxes are used for various purposes. Equipment for holding researches, pump stations, operator's rooms can be inside them.

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NEW BOOK OF E.M.BAZELYAN «ELECTROMAGNETIC COMPATIBILITY WITH LIGHTNING»

NEW BOOK OF E.M.BAZELYAN «ELECTROMAGNETIC COMPATIBILITY WITH LIGHTNING»

A unique edition is already available for order

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REGULAR INFORMAL MEETING WITH DESIGNERS

REGULAR INFORMAL MEETING WITH DESIGNERS

A regular informal meeting took place at the brewery-pub "1516".

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LIGHTNING PROTECTION OF A BLOCK-MODULE FOR STORAGE OF A FIRE-FIGHTNING TANK IN OSIPOVICH DISTRICT

LIGHTNING PROTECTION OF A BLOCK-MODULE FOR STORAGE OF A FIRE-FIGHTNING TANK IN OSIPOVICH DISTRICT

A fire-fighting tank is a wonderful helper for large fires. In idle mode, it is stored in a block-module which performs as a garage. When building this block-module for a fire-fighting tank, it is necessary to make lightning protection system.

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