Hōʻike pinepine ʻia ke kūpaʻa ʻana o ka laminate copper clad e ka comparative tracking index (CTI).Ma waena o nā waiwai he nui o ka copper clad laminates (copper clad laminates no ka pōkole), ka hoʻopaʻa ʻana i ke kūpaʻa, ma ke ʻano he mea koʻikoʻi palekana a hilinaʻi, ua hoʻonui nui ʻia e Papa kaapuni PCB nā mea hoʻolālā a me nā mea hana papa kaapuni.

Hoʻāʻo ʻia ka waiwai CTI e like me ke ʻano maʻamau IEC-112 "Test Method for Comparative Tracking Index of Substrates, Printed Boards and Printed Board Assemblies", ʻo ia hoʻi, hiki i ka ʻili o ka substrate ke kū i 50 kulu o 0.1% ammonium chloride. ʻO ke kumu kūʻai uila kiʻekiʻe loa (V) kahi i loaʻa ʻole ai kahi hopena wai i kahi ʻano o ka leaka uila.E like me ka CTI pae o ka insulating mea, UL a me IEC puunaue ia lakou i 6 mau papa a me 4 mau papa.

E nānā i ka Papa 1. ʻO CTI≥600 ka papa kiʻekiʻe loa.ʻO nā laminates ʻaʻahu keleawe me nā koina CTI haʻahaʻa e maʻalahi i ka nānā ʻana i ka leakage ke hoʻohana ʻia no ka manawa lōʻihi i nā wahi paʻakikī e like me ke kaomi kiʻekiʻe, ke kiʻekiʻe wela, ka haʻahaʻa, a me ka pollution.

ʻO ka mea maʻamau, ʻo ka CTI o nā laminates keleawe i hoʻopaʻa ʻia ma ka pepa maʻamau (XPC, FR-1, a me nā mea ʻē aʻe) he ≤150, a ʻo ka CTI o nā laminates keleawe maʻamau maʻamau (CEM-1, CEM-3) a me ka fiber aniani maʻamau. laminates copper clad laminates (FR-4) Mai ka 175 a hiki i ka 225, ʻaʻole hiki ke hoʻokō i nā koi palekana kiʻekiʻe o nā huahana uila a me nā uila.

Ma ke kūlana IEC-950, ka pilina ma waena o ka CTI o ka laminate copper clad a me ka volta hana o ka papa kaapuni pai a me ka palena uea liʻiliʻi liʻiliʻi (Minimum Creepage Distance).ʻAʻole kūpono wale ka CTI copper clad laminate no ka pollution kiʻekiʻe, He kūpono loa ia no ka hana ʻana i nā papa kaapuni paʻi kiʻekiʻe no nā noi kiʻekiʻe-voltage.Ke hoʻohālikelike ʻia me nā laminate keleawe maʻamau me ke kūpaʻa kiʻekiʻe o ka leakage tracking, hiki ke ʻae ʻia ka laina laina o nā papa kaapuni i paʻi ʻia me ka mea mua.

Ka nānā ʻana: ʻO ke kaʻina hana o ka hana ʻana i kahi ala conductive ma luna o ka ʻili o ka mea insulating paʻa ma lalo o ka hana hui o ke kahua uila a me ka electrolyte.

Comparative Tracking Index (CTI): ʻO ke kumukūʻai kiʻekiʻe loa e hiki ai i ka ʻili o ka mea ke kū i 50 kulu o ka electrolyte (0.1% ammonium chloride aqueous solution) me ka ʻole o ka hana ʻana i kahi leakage, ma V.

Hōʻike Hōʻike Hōʻike Hōʻike (PTI): ʻO ke kumukūʻai kūʻokoʻa e hiki ai i ka ʻili o ka mea ke kū i 50 kulu o ka electrolyte me ka ʻole o ka hana ʻana i kahi leakage, i hōʻike ʻia ma V.

CTI ho'āʻo hoʻohālikelike o ke keleawe aahu laminate

Hoʻomaka ka hoʻonui ʻana i ka CTI o ka mea pepa me ka resin, a hoʻemi i nā ʻano genes i maʻalahi i ka carbonize a maʻalahi hoʻi e hoʻoheheʻe ʻia i loko o ke ʻano mole mole resin.