Ntchito ya SPD m'madera akumwamba
Monga mchenga wa mdziko lonse kuteteza chitetezo chowonekera, Prosurge ili ndi makampani ambiri padziko lonse lapansi. Mwachitsanzo, tili ndi makasitomala ambiri ku South America komwe kuli wotchuka kwambiri chifukwa cha mtengo wake. Nthawi zina, timakhala ndi makasitomala akutifunsa ife: Tiyenera kukhazikitsa chipangizo choteteza chitetezo m'madera omwe ali pamwamba pa 2000m, kodi chidzakhudza momwe ntchito ya SPD ikugwirira ntchito?
Ichi ndi funso lothandiza kwambiri. Ndipo mu nkhani ino, tikuti tikambirane za mutuwu. Tidzakambirana malingaliro osiyanasiyana ochokera kwa akatswiri osiyanasiyana koma mwachifundo tidzakambirana kuti dera ili likufunikanso kufufuzidwa kotero kuti zomwe timapereka zimangotchulidwa.
Kodi Chapadera Ndi Chiyani pa Kukwera Kwambiri?
Nkhani yachitetezo chachitetezo / chitetezo cha mphezi m'malo okwera yakhala nkhani yothandiza nthawi zonse. Mu ILPS 2018 (International Lightning Protection Symposium), akatswiri oteteza chitetezo alinso ndi zokambirana pamutuwu. Nanga chapadera ndi chiyani ndi malo okwera?
Choyamba, tiyeni tiwone mikhalidwe yayikulu yayikulu ya madera okwera:
- kutentha kwakukulu ndi kusintha kwakukulu;
- kuthamanga kwa mpweya kapena mpweya;
- kupititsa patsogolo dzuwa;
- kutsika kwachinyezi mu mlengalenga;
- kutentha kwakanthawi; masiku ambiri a mphepo;
- kutentha kwa nthaka ndi nyengo yozizira kwambiri
Kusinthidwa kwadongosolo lachidindo ku Mawindo apamwamba
Kusiyana kwa nyengozi kumakhudza kuyika kwa SPD. SPD nthawi zambiri imagwiritsa ntchito zinthu zolimba ndi mpweya monga chophimba chodziletsa. Pamene kutalika kwawonjezeka, SPD iyenera kuonjezera chitetezo ndi kutalika kwacreepage.
Kwa SPD yomwe ili ndi mapangidwe osasinthika ndipo silingasinthe kayendetsedwe kake ndi kutalika kwake, tifunika kuzindikira kuti: ngati mphamvu ya mpweya imachepa, mphamvu ya kugwa imachepetsanso. Pofuna kuonetsetsa kuti SPD ili ndi mphamvu yokwanira yogwiritsira ntchito nthawi yomwe imakhala pamalo okwera, ingayesedwe ndi mayesero. Apo ayi, dongosolo la SPD liyenera kusinthidwa kuti liwonjezere chiwongoladzanja.
Kodi Kutalika Kukhudza Kukwera Kwachida Chitetezo cha Iimp, Imax ndi In?
Kuthamanga kwa mpweya wochepa, kutentha, chinyezi chamtheradi ndi zinthu zina m'malo okwera kwambiri sizimayenderana ndi mphezi za SPD kapena mphamvu zomwe zilipo pakali pano. Kukula kwa mphezi / kuthamanga kwa SPD kumatengera kapangidwe kake ka zinthuzo ndi magwiridwe antchito ake, zomwe sizikugwirizana ndi chilengedwe m'malo okwezeka kwambiri. Palibe malamulo ofanana ndi zothandizika mu IEC yofananira, miyezo yadziko ndi zolemba zina.
Kodi ndiyeso yowonjezera yotani yomwe iyenera kutengedwa? Zotsatira za UL Professionals
Kuchokera pakuwona kwa akatswiri a UL, fkapena mapulogalamu apamwamba a SPD, tingathe kuyesa mayeso ena. SPDs imakhala ndi kutalika kwa 2000 m iyenera kuyesedwa isanayambe kuyesedwa kwayeso: zitsanzo zitatu zimayikidwa mu bokosi la chibayo kwa maola 168, ndipo mpweya umayenera kukhala wotsatizana ndi IEC 60664-1. 2 ndipo amagwiritsira ntchito maulendo opitirira mavoti opitirira (MCOV).