BS EN 61643:21-2001+A2:2013

Zipangizo zoteteza kutsika kwamagetsi

Gawo 21: Zipangizo zodzitchinjiriza zomwe zimalumikizidwa ndi kulumikizana kwa ma foni ndi ma signature

Mawu Oyamba Padziko Lonse

British Standard ndiyokhazikitsidwa kwa UK ku
EN 61643-21: 2001 + A2: 2013. Amachokera ku IEC 61643-21: 2000, kuphatikiza corrigendum Marichi 2001 ndikusintha 2: 2012. Imayang'anira BS EN 61643-21: 2001 + A1: 2009, yomwe imachotsedwa.

Chiyambi ndi kumaliza kwa mawu omwe adayambitsidwa kapena kusinthidwa ndikusinthidwa akuwonetsedwa m'mawuwo ndi ma tag. Matagi osonyeza kusintha pamalemba a IEC amakhala ndi kuchuluka kwa kusintha kwa IEC. Mwachitsanzo, mawu omwe asinthidwa ndikusinthidwa kwa IEC 1 akuwonetsedwa ndi A1.

Pomwe kusinthidwa kofananira pakusintha kwa IEC kwayambitsidwa, ma tag amakhala ndi kuchuluka kwa kusinthako Mwachitsanzo, zosintha wamba zomwe CENELEC idasinthira ku IEC 1 zikuwonetsedwa ndi C1.

Kutenga nawo gawo ku UK pokonzekera kunaperekedwa ndi technical Committee PEL / 37, Surge Arresters - High Voltage, ku Subcommittee PEL / 37/1, Surge arresters - Low voltage.

Mndandanda wamabungwe omwe akuyimiridwa pa komitiyi ungapezeke pakapempha mlembi wawo.

Buku ili silikutanthauza kuphatikiza zofunikira zonse za mgwirizano. Ogwiritsa ntchito ali ndi udindo pakugwiritsa ntchito molondola.

Kutsata mfundo zaku Britain sikungapereke chitetezo chazovomerezeka.

MAU OYAMBA

Cholinga cha International Standard ndi kuzindikira zofunikira za Surge Protective Devices (SPDs) zomwe zimagwiritsidwa ntchito poteteza ma telecommunication ndi ma sign systen kapena ma data a vol-voltage, mawu, ndi ma alarm. Machitidwe onsewa amatha kuwonetsedwa ndi zolakwika za mphezi ndi zolakwika, mwina kudzera kulumikizana mwachindunji kapena kulowetsedwa. Zotsatirazi zitha kupangitsa kuti dongosololi likhale lopitilira muyeso kapena kupitilira apo kapena zonse ziwiri, zomwe milingo yake ndiyokwanila kuwononga dongosololi. Ma SPD amalinganizidwa kuti aziteteza kutchinjiriza kwamapiri ndi mafunde owonjezera omwe amayamba chifukwa cha mphezi ndi zolakwika zamagetsi. Mulingo uwu umalongosola mayeso ndi zofunikira zomwe zimakhazikitsa njira zoyesera ma SPD ndikudziwitsa olowa m'malo.

Ma SPD omwe adalankhulidwa mu International Standard atha kukhala ndi zida zodzitchinjiriza zokha, kapena kuphatikiza kwa zida zopitilira muyeso ndi zotchinjiriza zomwe zili ndi zida zotetezera zokhazokha sizomwe zili muyezo uwu. Komabe, zida zokhala ndi zochulukirapo zokha
yokutidwa mu cholumikizira A.

SPD imatha kukhala ndi zida zingapo zotetezera komanso zotetezera mopitirira muyeso. Ma SPD onse amayesedwa pa "bokosi lakuda", mwachitsanzo, kuchuluka kwama terminals a SPD kumatsimikizira njira yoyesera, osati kuchuluka kwa zinthu mu SPD. Makonda a SPD amafotokozedwa mu 1.2. Pankhani yama SPD angapo, mzere uliwonse ukhoza kuyesedwa mosadalira ena, koma pangafunikenso kuyesa mizere yonse nthawi imodzi.

Mulingo uwu umakhudza zochitika zosiyanasiyana zoyesa ndi zofunikira; kugwiritsa ntchito zina mwazi ndikuzindikira kwa wogwiritsa ntchito. Momwe zofunikira pamiyeso iyi zimakhudzira mitundu yosiyanasiyana ya SPD ikufotokozedwa mu 1.3. Pomwe ili ndi muyezo wa magwiridwe antchito ndipo kuthekera kwina kumafunsidwa ndi ma SPD, mitengo yakulephera ndikutanthauzira kwawo amasiyira wogwiritsa ntchito. Kusankha ndi kugwiritsa ntchito mfundo zidzafotokozedwa mu IEC 61643-22 1).

Ngati SPD imadziwika kuti ndi chinthu chimodzi, imayenera kukwaniritsa zofunikira muyezo womwewo.