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leaflet for owners of photovoltaic systems


Dear Customer

your building already has an external lightning protection system
("lightning rod"), or you plan to protect their house with an exterior
lightning protection from the effects of a direct lightning strike to
. As scheduled on the roof of your building also a
photovoltaic system is or was erected, we ask to respect
the following:

be coupled this with a direct lightning strike any part of lightning current in electrical system components of the photovoltaic system, certain minimum distances (separation distances ") between the system components of the photovoltaic system and the plant parts of the external lightning protection (including those connected components such as Attikaabdeckbleche, gutters, skylights, etc.) to comply. Otherwise it can to parts of the photovoltaic system in damage. In planning our lightning protection systems, we will consider these distances. This will require on the part of the photovoltaic system adjustments if necessary. If the photovoltaic system can be installed separately, to the separation distances from the photovoltaic system builders complied with. In existing lightning protection measures to adapt the lightning protection system is to be made. Talk to us in time - if possible during the planning phase the photovoltaic system - on!

The protection of the photovoltaic system against the effects of a direct lightning strike in the modules is done by fishing tips, rd. 8-10 mm, which are installed in the vicinity of the modules. We can about the effectiveness of the photovoltaic system by any shadow of that fishing tips make any statements. This is part of the photovoltaic plant installer to check and clarify.

For further questions about the protection of your PV system, for example, against damage from surges, our electrician at your disposal!

your
RIED LIGHTNING PROTECTION LTD
Hünstetten 65 510 / 65201 Wiesbaden Tel
06126-53715 / 0611-333077-0
mail: info (at) ried blitzschutz.de
www.ried-

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you are planning a photovoltaic system on your roof?


lightning and surge protection for PV blitzschutz.de - Power Systems

More and more private and public clients such as municipalities and other public bodies decide today to make their roofs for photovoltaic plants. The importance of renewable energy sources is taken into account herewith.
Regulatory requirements demand for construction works in this sector is often a lightning protection as a preventive measure of fire protection to the sensitive technical infrastructure protect the plant. Conversely, the protective function is not an already-installed lightning protection system by the installation of a PV system affected.
particular importance is the correct choice of the lightning protection system. If possible, the lightning protection while maintaining the required separation distances have no direct connection to the PV system.
Here we have-in part-the main elements concerning the application of relevant regulations and requirements.

For use Din are the following rules and regulations:
DIN EN 62305-3 VDE 0185-305-3
Supplement 5 Supplement 5)
lightning
Part 3: Physical damage to structures and people
Supplement 5: Lightning and surge protection for PV power systems

SCOPE

This supplement deals with the protection of PV power systems against harmful effects of lightning and surges of atmospheric origin. If a flash is required and / or surge protector, or will be located, describes the supplement requirements and measures to ensure the safety, performance and availability of PV power systems to obtain.

RISK
sufficient for normal requirements, a lightning protection system class III, only in special cases, such as increased availability the system can be a different lightning protection class according to EN 62305-s (VDE 0185-305-2) certified.
The lightning protection of technical measures for the PV system can be adapted and he lightning protection class of the building. LIGHTNING PROTECTION SYSTEM


The risk of lightning is not changed by the establishment of a PV system. It is recommended that the vote of the PV system with the lightning protection system. This can be kind of appropriate measures and direct lightning discharge into a grounding system to prevent galvanic currents coupled to the PV system to act. Additional measures are
internal lightning protection effects of lightning strikes and Potential differences on the building and prevented. This damage to the building (mechanical and fire damage) are, and damage to the PV power system (mains, control and electrical safety devices), prevented.
planning, installation and testing are carried out by lightning protection specialists. The requirements for a lightning protection specialist are defined in the standards DIN EN 62305 (VED 0185-305). a lightning protection specialist , who can because professional training, knowledge and experience and knowledge of relevant standards, plan, install lightning protection systems, and check.

EXTERIOR LIGHTNING
The fishing equipment be established taking into account the separation distance. This distance is maintained to avoid dangerous radio binding to parts of the PV system. Between the PV modules and metal parts, such as lightning protection system, gutters, roof window or antenna installations are to comply with DIN determined separation distances.
must be noted also the possible shading of the PV modules by arresting gear.

INNER SURGE PROTECTION
surges as a result of direct atmospheric discharge may be limited by appropriate surge protection devices (SPD Type 1 according to DIN), power surges as a result of distant lightning protection devices require the Type 2 and type 3 according to DIN EN 61643-11 (VDE 0675-6-11).
Note: The above standard applies to surge protectors for AC power systems. For overvoltage protection in DC systems currently are no normative requirements. For the selection of surge protection devices for the DC side of PV systems suitable, currently, only the relevant manufacturer's data are considered.

GROUNDING
Is the PV system within the scope of the capture device, a function of the metal grounding PV mounting rack is carried out. For this purpose, the module frames and frames are connected to the main earth bar. The conductor cross section should be at least 6 mm2 (copper) or an equivalent current carrying capacity. Similarly, all the module frame rails are interconnected with the cross-section.
Is the plant is not within the scope of catcher , so conductive fastening devices (eg, support profiles) to the main earth bar of the building to join. The cross section should be at least 16mm2 (copper) or 25mm2 (aluminum) amount. The fasteners are connected to each other as well. A conductive connection between the conductive parts of the modules is advantageous.

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General for lightning and surge protection

definitions and descriptions of a lightning protection system

According to DIN VDE 0185-305 Part 1-4:
A lightning protection system consists of an outer and inner lightning protection system.

external lightning protection
Following DIN VDE 0185-305 -3
The external lightning protection system on the object of direct lightning strikes on the catcher to catch, to derive means of the discharging device in the direction of Earth and distribute the lightning current through the grounding system in the world without that there is damage to the building or structure or for the personal injuries.

Internal Lightning Protection
prevents According to DIN VDE 0185-305-4
The interior of lightning protection systems dangerous sparks up to the potential compensation or providing adequate separation distances, eg between the external lightning protection system and conductive parts inside of the building.

lightning - bonding
After German Association of lightning protection companies VdB: In lightning protection potential compensation means the part of the internal lightning protection, which provides in the event of lightning in the lightning protection system for secure distribution of lightning energy to the potential equalization system. Dangerous sparks is prevented. Bodies of the electrical energy and information technology are to be specially protected because of the earth system and the potential compensation is a direct link hiss of the outer Lightning protection system and installation of the building is. In the lightning protection potential compensation following components must be included:
• metal frame of the building
• Installation of metal
• Outer conductive parts
• All imported conductive line system (eg water and gas mains)
• Install electrical power and information technology.

functional earth
According to DIN VDE 0100-200 / 826-13-10: 2006
This refers to the grounding of a point or more points in a network, installation or of equipment for purposes other than electrical safety.

can lightning protection specialist
According to DIN VDE 0185-305-3 Supplement 3
lightning protection specialist, who are planning, through technical training, knowledge, experience and knowledge of the relevant lightning protection systems, built and tested. A lightning protection specialist must be informed of the applicable local building regulations and inform the relevant generally accepted rules of technology. The detection may be performed by regular participation in national training courses. The lightning protection specialist has many years of professional experience and timely professional services.
A lightning protection lightning protection specialist company such as reed in Hünstetten Wallrabenstein places utmost importance on continuing education and training of its employees. See for yourself www.ried and check our references to -blitzschutz.de

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house without a lightning rod: the owner is liable for damages?

Sudden drop of chimney crashing on parked car
thunderstorm time is the time of damage, not only knows the insurance industry. The following case caught our attention. We know about the problem of many cases of our customers and would like to describe the facts briefly. Please pull your own conclusions!

A violent summer storm raging over a densely populated hillside with heavy traffic. An older building, built in 1968, dominates with about 20 m height of the surrounding buildings and has no lightning!
The lightning finds its way to the chimney of the house and propose there. Falling components and debris hit a vehicle that was parked outside the house properly, damaging it considerably.
The vehicle owner must turn his full insurance, which takes over the repair and expert fees, of course, minus the deductible. Under the scheme, the car owner demoted and the premium is increased.
you guessed it: The holder of the affected vehicle sued the owner of the damaged house Cars for reimbursement of damages. Reason: Since a lightning rod was missing, was dealing with an inadequate construction of the damaged building. Furthermore, he alleges to have violated applicable building code and on top of the chimney is not affected sufficiently evaluated and maintained to have.
The applicant submits an impairment of the damaged car that, the loss of use, repair, and the deductible. The court is asked in the action, consider whether the homeowner does not meet even a replacement requirements relating to the pre-trial legal fees and increased insurance premium.
The district court dismissed the action, first, the appeal to the Landgericht Frankfurt, however, was successful (LG Frankfurt / Main, Judgement of 24.09.2008, 2-15 S 108/08).
The reasoning of the Judge: A breach of building regulations lies not available, the so-called prima facie evidence speak but that construction defects have contributed to cause damage, because "properly constructed and maintained buildings usually collapse or even lose some." (See, BGH of 04.04.2006, VI ZR 151/06, VersR 2006, 931, and dated 23.03.1993, VI ZR 176/92, VersR 1993, 759; Falandt / Sprau, BGB, 67th edition 2008, § 836 para. 9, Wagner in Munich. Comm to BGB, vol 5, 2004m 4th edition § 836 Rn. 5f)
Only for damage would be caused by unusual natural phenomena, such as hurricanes, extreme winds, one can not necessarily originate from construction defects as the cause, the judges said. (BGB, Judgement of 27.04.1999, VI ZR 174/98, VersR 1999th 1424). However, buildings must impact, likely to occur at any time based on general experience is so stubborn squalls and thunderstorms, can withstand, according to Federal Court.
lie in the present case, but not before such an absolutely rare natural event, the LG Frankfurt. Lightning strikes are events that may have to face a property owner at any time. Therefore, he had also to take appropriate measures so such as the elimination of construction defects or the installation of a lightning rod to ensure the stability of his building against external events. The judges were of the opinion that such precautionary measures are easily applicable and for property owners quite economically reasonable.
The homeowner is liable for defective construction in full for the damage to the car.

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thunderstruck, thunderstruck

thunder and lightning - the underestimated risk
If it starts to thunderstorm unexpectedly during an outing in the countryside, this may be more dangerous than many think. In humans, a fatal lightning strike Heart rhythm disturbances and internal burns. But how can you protect yourself?

"A problem is often that people are not sufficiently informed about upcoming weather conditions," says Günther Delfs by the German Weather Service (DWD) in Hamburg. "That need not be, because the German Weather Service provides accurate predictions about the web approaching storms and storm situations." This can be very small scale even resolved to the county level. Of course are such information for hikers and water sports enthusiasts, "but also for recreational soccer players, whose training courses are often the villages upstream and thus exposed in the open are quite "out of the expert.
For leisure players: Caution! In advance of such actions, you should definitely pay attention to the forecast or weather radar in the EWD, "advises Delfs. That soccer fields are particularly vulnerable to possible lightning strikes, not least because of the lighting towers of steel. They are the highest elevation in the area and an ideal lightning rod . Proposes here by lightning, it can lead to forwarding through other steel parts, such as the railings in the spectator area. This is equal to many people from the high electric current of lightning up affected to 400 000 amps, in a recent a stadium in the town of Biberach Ingoldingen district, where in May this year 26 people were severely injured in a lightning strike.
The first advice of professionals is therefore to assess the threat in advance as possible correct. In many cases, is announcing an impending storm to be heard. "Follow the thunder of a lightning in less than ten seconds, is no longer the Einschlagort than a kilometer away," says Günther Delfs by DWD. Then we need to act quickly: distance to all high points and keep, if possible, preferably a building made of reinforced concrete or a closed vehicle seek to protect. Here, however, should not the body or affect buildings in the radiators or water pipes.
on distance to trees
If you are in the open field, it says: If possible, go with legs in squat position and take the greatest possible distance from trees, poles or even a bicycle, so to all that is good conductive. Care should be taken not to go to the highest and therefore most exposed point of the environment.
to the saying "Thou shalt Book Search, oak soft Thou shalt" one should not hold. Trees - any kind - are taboo in a storm! Campers should
remain in a storm in no case in the tent because the tent pole acts like an antenna, attracting lightning. The same goes for phones that worn during a lightning storm is not possible, but above all should not be used.
is not unimportant, according to DWD expert Günther Delfs also known as step voltage. This occurs when the legs are not closely enough together. Even if the flash point of impact is removed, the funnel-shaped propagating electric current entering on one leg in the body and the farther out again. The electric currents flowing through the body can thus still be living dangerously high.
Immediately help

"Is it already been a lightning with personal injury, should be called in emergency in any case," said Stefan Osche of the German Red Cross (DRK) in Berlin. As first responders but also bystanders are addressed directly. The possible violations supply while according to an accident involving power. That is, immediate Kontolle of cardiac and circulatory functions, stabilization and, where appropriate, ventilation and re-population trials which are usually rewarded with a good chance of success. Fear of residual stress have no need to because the flash will be quickly dissipated, and thus ineffective for is added later. "And that lightning strikes twice in the same location is unlikely, "says Stefan Osche from the DRC.
but it was important to note that victims are often in their hearing debilitating and therefore difficult to respond. "The eardrum can be damaged by the enormous clap of thunder," said Osh. ER therefore recommends to ensure, especially on those signs specifically. "These people should be assisted in any case in medical treatment." Hearing loss could be in otherwise externally intact but people acting en regard to other possible adverse effects as a result of a lightning strike: "In retrospect occurring cardiac arrhythmia are not excluded "

Found in: AOK business newspaper." current practice "03/2009