Product / System 3000
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1. System 3000:
System 3000 is comprised of the proprietary nVent ERICO Dynasphere which captures lightning, the nVent ERICO Ericore downconductor that will safely transmit a direct strike to the earthing system to while protecting the critical equipment while preventing a spark over, and a robust grounding system including nVent ERICO Cadweld connections.
nVent has investigated the lightning protection process through years of research involving long term field studies. This extensive research has resulted in some of the most up-to-date published technical papers and journals.
The System 3000 has evolved from this research activity, with earlier versions of the System 3000 providing a building block for the latest advancements through extensive field studies, leading edge indoor and outdoor high voltage testing and computer modeling research support.
Lightning strikes and the dangerous over-voltage surges caused by lightning and man-made events represent a direct threat to people, buildings and sensitive electronic equipment. Today, the consequences of an unexpected lightning strike or power surge can be catastrophic for a company. Proper protection can save thousands of dollars in damage, operational downtime and lost business opportunities.
An unprecedented field-validation study of the Collection Volume Method (CVM) for lightning protection system releases new data on the importance of air terminal placement and the validity of the CVM’s claimed interception efficiency levels.
2.THE STUDY:
Lightning Event Counters (LEC) were placed around the current downconductor cable to record the number of strikes to the structure’s protection system via the Collection Volume Method (CVM) lightning system.
ENHANCED AIR TERMINALS WITH CVM PLACEMENT, SUCH AS THE DYNASPHERE, OFFER A ZONE OF PROTECTION CONSISTENT WITH CLAIMED INTERCEPTION EFFICIENCY LEVELS OF 84% – 99%, BASED ON THE DESIRED LEVEL OF PROTECTION.
THE COLLECTION VOLUME METHOD (CVM), ALSO KNOWN AS ERIKSSON’S ATTRACTIVE RADIUS MODEL, CONSIDERS THE PHYSICAL CRITERIA OF AIR BREAKDOWN, AND THE ELECTRIC FIELD INTENSIFICATION CREATED BY DIFFERENT POINTS ON A STRUCTURE.
3.Dynasphere:
The primary function of an air terminal, or air termination system, is to capture the lightning strike to a preferred point, so that the discharge current can be directed via the down- conductor(s) to the grounding system. The Dynasphere air terminal provides optimal lightning capture.
Air Terminal tips are provided that optimize performance for the relative height of the installation, and are also easily replaced in the event they become damaged from excessive strike in extremely volatile locations.
4.Interceptor MKIV:
The nVent ERICO Interceptor Air Terminal is specifically designed for smaller installations that do not require the larger protection radius offered by the nVent ERICO Dynasphere.
The nVent ERICO Interceptor is based on similar technology to the nVent ERICO Dynasphere, but its smaller shape limits its applications to those structures with a smaller footprint such as a cluster of antennae or those that are less than 20 m tall (65 ft). As the nVent ERICO Interceptor tip is limited to small areas or structures under 20 m tall, it is supplied with one standard tip shape.
5.Design Support:
Our LPSD software utilizes the CVM to ensure that your Dynaspheres have proper to placement for your facility. The placement and application of the System 3000 is critical to ensure optimal protection is provided. nVent’s unique computer aided design program enables easier, reliable application of the System 3000, taking into account individual site parameters and the variables required to complete an optimal design using the CVM.
CVM accounts for much more than the Rolling Sphere Method (RSM). The RSM is based on the Electro Geometric Model for striking distance. CVM considers the height as well as the geometry of the objects on the structure.
THE ERICORE DOWNCONDUCTOR:
As an integral part of the System 3000, multi-layered, low impedance insulated Ericore downconductor conveys the lightning discharge current to ground with minimal danger of sideflashing. A unique semi-conductive outer sheath allows electrostatic bonding of the building through cable securing saddles.
The Ericore downconductor evolved after extensive studies of potential voltage rise in structures due to lightning injection. This cable is comprised of carefully selected dielectric materials, which create capacitive balance and help ensure insulation integrity under high impulse conditions. The unique ability of Ericore to confine a discharge current and simultaneously support electrical bonding helps ensure minimal risk to building, occupants and sensitive electronics.
6.Earthing System:
The grounding system must have a low impedance to disperse the energy of the lightning strike. Because the lightning discharge consists of high frequency components, we are particularly concerned with the frequency-dependent electrical parameter of a grounding system – impedance as well as low resistance grounding.
Grounding systems are highly variable from site to site due to geographical considerations. The grounding grid should minimize the ground voltage potential rise and minimize the risk of injury to personnel or damage to equipment.
This combination makes it one of the most advanced, safest, and scientifically supported lightning protection systems in the world.
This combination makes it one of the most advanced, safest, and scientifically supported lightning protection systems in the world.