Mayeso a kuwala kwa msewu wa LED

Kuwala kwa msewu wa LED nthawi zambiri kumakhala kutali ndi ife, ngati kuwala kwalephera, timafunika kunyamula zida ndi zida zonse zofunika, ndipo kumafuna ukadaulo kuti tikonze. Zimatenga nthawi ndipo ndalama zokonzera zimakhala zambiri. Chifukwa chake kuyesa ndi gawo lofunika kwambiri. Kuyesa kuwala kwa msewu wa LED kuphatikiza mayeso osalowa madzi kapena chitetezo cha ingress (IP), mayeso a kutentha, mayeso a chitetezo cha impact (IK), mayeso okalamba, ndi zina zotero.

Mayeso a chitetezo cha kulowa (IP)

Zimatsimikiza ngati kuwalako kudzateteza ziwalo zogwirira ntchito ku madzi, fumbi, kapena chinthu cholimba, zomwe zimapangitsa kuti chinthucho chikhale chotetezeka pamagetsi komanso chikhale chokhalitsa. Kuyesa kwa IP kumapereka muyezo woyeserera wobwerezabwereza poyerekeza chitetezo cha m'chipinda. Kodi kuyesedwa kwa IP kumayimira bwanji? Manambala oyamba mu kuyesedwa kwa IP amayimira mulingo wa chitetezo ku chinthu cholimba kuchokera m'dzanja kupita ku fumbi, ndipo manambala achiwiri mu kuyesedwa kwa IP amayimira mulingo wa chitetezo ku madzi oyera kuyambira 1mm ya mvula mpaka kumizidwa kwakanthawi mpaka 1m.

Mwachitsanzo, tiyerekeze kuti IP65 ndi “6”, fumbi sililowa, “5” ndi lotetezedwa ku madzi oyenda kuchokera mbali iliyonse. Kuyesa kwa IP65 kumafuna kupanikizika kwa 30kPa pa mtunda wa 3m, ndi kuchuluka kwa madzi malita 12.5 pamphindi, nthawi yoyesera ndi mphindi imodzi pa mita imodzi kwa mphindi zosachepera zitatu. Pazowunikira zambiri zakunja, IP65 ndi yabwino.

Madera ena amvula amafuna IP66, mawu akuti “6” amatanthauza kuti amatetezedwa ku mafunde amphamvu amadzi ndi nyanja yolemera. Mayeso a IP66 amafuna mphamvu ya 100kPa pa mtunda wa 3m, ndi mphamvu ya madzi malita 100 pamphindi, nthawi yoyesera ndi mphindi imodzi pa mita imodzi kwa mphindi zosachepera zitatu.

Mayeso a chitetezo cha zotsatira (IK)

Miyezo ya IK rating: IEC 62262 imatchula momwe ma enclosure ayenera kuyesedwa kuti apeze ma IK ratings omwe amatanthauzidwa ngati mulingo wa chitetezo chomwe ma enclosures amapereka ku zotsatira zakunja zamakina.

IEC 60598-1 (IEC 60529) imatchula njira yoyesera yomwe imagwiritsidwa ntchito pogawa ndikuwunika kuchuluka kwa chitetezo chomwe mpanda umapereka motsutsana ndi kulowerera kwa zinthu zolimba zazikulu zosiyanasiyana kuyambira zala ndi manja mpaka fumbi laling'ono komanso chitetezo motsutsana ndi kulowerera kwa madzi kuchokera ku madontho akugwa kupita ku ndege yamadzi yothamanga kwambiri.

IEC 60598-2-3 ndiye muyezo wapadziko lonse wa ma Luminaires a Misewu ndi Magetsi a Misewu.

Ma IK ratings amatanthauzidwa kuti IKXX, pomwe "XX" ndi nambala kuyambira 00 mpaka 10 yomwe imasonyeza madigiri a chitetezo chomwe chimaperekedwa ndi ma enclosures amagetsi (kuphatikiza ma luminaires) ku zotsatira zakunja zamakina. Mulingo wa IK rating umazindikira kuthekera kwa enclosure kukana milingo ya mphamvu ya impact yomwe imayesedwa mu ma joules (J). IEC 62262 imalongosola momwe enclosure iyenera kukhazikitsidwa poyesa, momwe mlengalenga umafunikira, kuchuluka ndi kufalikira kwa zotsatira za mayeso, ndi nyundo yokhudza impact yomwe iyenera kugwiritsidwa ntchito pa mulingo uliwonse wa IK rating.