1.CM helu ahi
ʻO CM ka pae hoʻopaʻa ahi maʻamau i hoʻohana ʻia i kēia manawa no ke kaula uwea.ʻO kāna kūlana hoʻāʻo ʻo UL 1581. E like me ka wehewehe ʻana, ʻo kahi puʻupuʻu liʻiliʻi o Cm-class cable cable e hele ʻokoʻa i loko o 5 mika o ka diffusion combustion.
I kēia manawa, hana nui ʻia ka uhi o waho o nā kaula kelepona CM-class i ka PVC a ʻo ka papa insulation i hana ʻia me ka PE kiʻekiʻe.Ke puhi ia, e hoʻokuʻu i ka halogen meaʻawaʻawa, ka uahi a me ka nui o ka heat.CM-class uea i hoʻohana maʻamau no ka holo ʻana ma ka papahele hoʻokahi, a loaʻa mau ma United Kingdom, Asia a me Australia.
2.CMR ahi helu
ʻO ka palekana o ka helu ahi CMR ka lua, ka mea i hoʻokō nui ʻia e ka hoʻomaikaʻi ʻana i ka wahi ignition o ke kaula e hoʻokō ai i ke kumu o ka non-flammable.ʻO kāna kūlana hoʻāʻo ʻo UL 1666. Ma ka wehewehe ʻana, ma lalo o ke ʻano o ka puhi ʻana i ka peʻahi, pono e hoʻopau ʻia kahi pūʻulu o nā kaula kelepona CMR i loko o 5 mau mika o ka hoʻoheheʻe ʻana.
I kēia manawa, hana ʻia ka ʻūhā o waho o ka CMR class cable network cable me ka mea PVC me ka lapalapa ahi kiʻekiʻe, a ua hana ʻia ka papa insulation me nā mea PE kiʻekiʻe.Ma hope o ka hoʻopau ʻana i ke ahi, e hoʻokuʻu ia i ke kinoea halogenated ʻona (chlorine gas) a me ke alakaʻi mahu, e hoʻopau koke i ka oxygen i ka lewa a hoʻopau i ka lapalapa. ʻo ka ʻōnaehana uwila, ʻo ia hoʻi i loko o ka ʻōnaehana kumu nui kū i loko, a loaʻa pinepine ʻia ma Asia a me Australia.
3.CMP ahi helu
ʻO ka helu ahi CMP ka palekana loa.Loaʻa iā ia ka hoʻopaneʻe ahi maikaʻi a ʻaʻole e hoʻokuʻu i ka nui o ka uahi ʻawaʻawa i ka wā e puhi ana. ʻO ka maʻamau hoʻāʻo CMP ʻo UL 910. E like me ka wehewehe ʻana o UL, pono e hoʻopau i kahi puʻupuʻu CMP a me nā kaula pūnaewele i loko o 5 mau mika o ka hoʻoheheʻe ʻana ma lalo o ka. nā kūlana o ka puhi ikaika ʻana e nā mea pā.
ʻO ka uhi o waho o ka CMP papa uea uea i hana ʻia me ka fluorine (e like me PTFE PTFE, FEP fluorinated ethylene propylene), ka mea kiʻekiʻe decomposition wela a me ka ignition point. e hōʻemi i ka uahi a me nā mea ʻawaʻawa, ʻoiai inā he ahi, ʻaʻole hoʻi i loko o ka hale i piha i ka nui o ke ahi ma muli o ka uea uwea a me ka uahi a i ʻole nā mea ʻawaʻawa ʻino, no laila, hoʻohana ʻia ke kaula CMP uea pūnaewele i loko o ka duct ventilation a i ʻole nā mea hoʻohana ea. ea circumfluence pressurization system, maʻamau ma Kanada a me ʻAmelika Hui Pū ʻIa.
4.DongguanWenchangElectronic Co., Ltd.he mea hana Kina me ka palapala hōʻoia CM, CMR, CMP.
ʻO ka papa CMR (vertical combustion test) He mau uwea papa kalepa kēia ma ke kūlana UL.ʻO UL1666 ke kūlana palekana.ʻAʻohe ʻōlelo kikoʻī o ka uahi a hoʻohana maʻamau ʻia lākou no ka wili o ka papahele a me ke aniani.
ʻO ka papa CMP (Stei Sodium Duct Test) ʻo ia ke kaula i koi ʻia i ka maʻamau palekana ahi UL.Hoʻokomo pinepine ʻia i loko o nā ʻōnaehana pressurization air reflux i hoʻohana ʻia i nā ducts ventilation a i ʻole nā mea hoʻokele ea.Ua ʻae ʻia ma Kanada a me ʻAmelika Hui Pū ʻIa.
5. Nā ʻokoʻa ma waena o CM, CMR a me CMP:
ʻOkoʻa ka CM, CMR a me CMP i ka helu ahi, ke kūlana hoʻopau a me nā mea o waho.Eia kekahi, ʻokoʻa nui lākou i ke kumukūʻai a me ka wahi noi.
(1) ʻO ka ʻokoʻa o ke kumukūʻai.
ʻO ka pahu waho o ke kaula CM a me ke kaula CMR i hana ʻia i nā mea PVC, ʻoiai ʻo ke kaula CMP i hana ʻia me nā mea fluorine, no laila ʻoi aku ka maikaʻi o ke kumukūʻai o ke kaula CMP ma mua o ke kelepona CM a me ke kaula CMR.
(2) Nā ʻokoʻa ma nā wahi noi
Ma keʻano laulā, hoʻohana ʻia ke kaula CM i ka wili uila o nā hale hoʻokiʻekiʻe a me nā keʻena inflatable i nā wahi ʻē aʻe, hiki ke hoʻohana ʻia ʻo CMR i ka uwila kūpaʻa o nā hale hoʻokiʻekiʻe a me nā ala kuʻuna, a hiki ke hoʻohana ʻia ʻo CMP i ka uwila ākea o nā ducts ea, inflatable. lumi a i ʻole nā kaiapuni ea ʻē aʻe.
Ka manawa hoʻouna: ʻAukake-27-2020