وصف
pre discharge lightning rod is based on the traditional lightning rod discharge principle, and introduces the basic characteristics of “promoting ionization” to prevent electric lightning rod, so as to achieve the pilot discharge earlier than the ordinary lightning rod, expand the protection radius and improve the safety factor. Under the lightning condition, when the lightning down leader approaches the ground, an uplink leader will be generated on any conductive surface. In the case of passive lightning rod, only after a long period of charge recombination can the uplink leader propagate. The excitation time of upstream leader of oml-dd3 pre discharge lightning rod is greatly shortened.
Under the condition of high static electric field characteristics before lightning discharge, oml-dd3 pre discharge lightning arrester will produce pulses with controllable amplitude and frequency at the tip of the needle, which makes the lightning rod produce an upward leader and propagate upward, thus intercepting the downward leader from the thunderstorm and achieving the purpose of first discharging. Because of its special designed ionization process, it can produce upstream leader ahead of other adjacent high points, so as to achieve the purpose of discharge first. The advance value of the trigger time is called the pre discharge time △ t. This is the main index to evaluate the performance of pre discharge lightning rod (ESE type lightning rod).
For the pre discharge time, nfc17-102 standard is defined as the difference between the average start-up time of the upstream leader sent out by the advance discharge lightning rod and the average starting time of the upward leader issued by the simple lightning rod. This is the result of comparing an ese lightning rod with a simple lightning rod under the same test conditions in the high voltage laboratory. It is a test statistical data.
Working characteristics of pre discharge lightning rod
2. It is more accurate and reduces the probability of lightning point falling on non lightning rod.
3. In the same installation height, the protection radius is several times larger than that of ordinary lightning rod.
4. Pure physical structure lightning rod, no electronic devices inside, no aging, maintenance free.
5. Oml-dd3 pre discharge lightning rod is easy to install: light weight, no need to install coaxial shielded cable.
6. Beautiful appearance, stainless steel material, can be installed in harsh environment.
technical parameter
| Different installation height of OML-ESE3.3/4.3/5.3/6.3 pre discharge lightning protection radius for various Lightning Protection Buildings(Rp) | |||||||||
| Installation height of lightning rod | 2 | 3 | 4 | 5 | 6 | 8 | 10 | 20 | 40 |
| Type I Lightning Protection Buildings | 32 | 48 | 65 | 79 | 79 | 79 | 79 | 80 | 77 |
| Type II lightning protection buildings | 40 | 59 | 78 | 97 | 97 | 98 | 99 | 102 | 105 |
| Type III lightning protection buildings | 44 | 65 | 86 | 107 | 107 | 108 | 109 | 113 | 118 |
التعليمات
س: Are you a factory or a trade company?
أ: نحن المصنع.
س: Where are your products distributed?
أ: Our products are distributed all over the world, Main market are Europe, أمريكا الشمالية, the United Arab Emirates, Africa and so on.
س: Can I have a sample?
أ: نعم, but according to our company’s policy, we provided free samples, while you should pay the freight fee; the sample can be delivered by TNT/DHL/UPS/FEDEX.
س: Which port is the nearest from you?
أ: Guangzhou port or Shenzhen Port or Hong Kong port.
س: What’s your lead time?
أ: Sample lead time: 3~5 working days. Mass production: usually 10~30days.
For big orders, honestly, it depends on the order quantity and designs.
س: When can I get the price?
أ: We usually quote within 24 hours after we get your inquiry. If you are very urgent to get the price, please call us or tell us in your email so that we will regard your inquiry as priority.
س: يمكنك أن تفعل التصميم بالنسبة لنا?
أ: نعم, we have a professional team having rich experience in molding design, electrical system developing and manufacturing. Please just tell us your ideas and we will help you to carry out your ideas into a perfect artwork. You can pay for the molding fee and own the mold by yourself or we can cooperate on the molding.
س:How to pay?
أ: We accept T/T, باي بال, Western union, خطاب الاعتماد, Trade Assurance