Taura hiko me te ārai-waikura
I te ao hiko hou, ehara ngā taura i te "kaikawe hiko" noa iho. He wāhanga nui ēnei e whakatau ana i te haumaru, te pono, me te roa o te mahi o tētahi whakaurunga. I roto i te maha o ngā taiao, ehara i te mea ko ngā kawenga hiko, ko ngā kawenga wera rānei te wero nui, engari ko te waikura—he hoariri puku e mahi puhoi ana engari he pono. Nō reira, he otinga nui ngā taura hiko me te ārai-waikura, inā koa mō ngā rohe takutai moana, ngā ahumahi matū, te keri maina, ngā wheketere kai, me ngā whakaurunga o waho e pāngia ana e te ua me te haumākū nui.
He aha te take he raru nui te waikura?
Ko te waikura te tukanga o te pirau o ngā rauemi nā ngā tauhohenga matū, hiko rānei ki te taiao, pērā i te hau makuku, te wai moana, te kohu matū, ngā poke ahumahi rānei. I roto i ngā whakaurunga hiko, ehara i te mea ka kino noa te āhua o te waikura engari ka pā kino anō hoki ki a ia, pērā i:
1. Te pikinga ake o te ātete hononga
Ka taea e ngā pito, ngā hononga, ngā parepare whakarewa rānei te whakanui ake i te ātete, te wera nui, ā, i te mutunga ka rahua te pūnaha.
2. Te kino ki ngā paparanga tiaki me ngā paparanga ārai
Ka taea e ētahi momo waikura te uru ki roto, te whakatere rānei i te koroheketanga o te rauemi, ka ngatata, ka pakarukaru, ka turuturu rānei te whakamarumaru.
3. Te mōrearea o te ara iahiko poto me te ahi
Ina heke te kounga o te whakamarumaru hiko, ina wera rānei te hononga nā te ātete nui, ka piki ake te mōrearea o te āwhata, te ara iahiko poto, tae atu ki ngā ahi.
4. Kei te piki haere ngā utu tiaki
Ko ngā whakaurunga waikura e hiahiatia ana he tirotiro auau, he whakakapinga taura auau ake, me te wā whakatā whakaputa utu nui.
Nō reira, ehara i te mea he kōwhiringa tāpiri te whiriwhiri i tētahi taura me te hoahoa me te rauemi tika, engari he mea nui.
He aha te tikanga o tētahi taura hiko he ārai-waikura tōna?
Ko te kupu "tiakitanga ā-waikura" ka taea te whakamahi hei tohu i ētahi wāhanga tiaki, i runga i te hoahoa taura me ngā āhuatanga mahi. I te nuinga o te wā, kua hangaia ngā taura ā-waikura kia ātete ake ki ngā taiao kaha mā te whakakotahitanga o:
– te koti/pūeru o waho e ātete ana ki ngā matū me ngā hihi UV,
– paparanga ārai makuku (ārai makuku),
– he pukupuku/ārai ā-ringa me te rauemi ātete-waikura,
– te paninga i ngā wāhanga whakarewa, me
– ngā rauemi ara iahiko hototahi me ngā taputapu hei ārai i te waikura konukōre.
He mea nui kia mārama ko te nuinga o te wā kāore te pakaru e puta i te uho kua whakamahanatia o te ara iahiko, engari i ngā wāhanga o waho pērā i te pukupuku, ngā wāhi whakamutu, ngā repe, me ngā hononga—ngā wāhi e tino pāngia ana e te wai, te tote, me ngā matū.
Ngā momo ārai-waikura i runga i ngā taura
1. He koti o waho e ātete ana ki te taiao
Ko te takotoranga o waho te "pūeru" matua o te taura. Ko ētahi o ngā rauemi e whakamahia whānuitia ana ko:
– PVC motuhake (taumata ahumahi): he ōhanga, he pai mō ngā mahi maha, engari ko te ātete ki ngā matū me te huarere kei te hanganga.
– PE/HDPE (Polyethylene): he tino pai mō te ātete ki te makuku me ngā āhuatanga o waho, e whakamahia ana mō ngā taura tanumia, ngā wāhi mākū rānei.
– LSZH/LSOH (Low Smoke Free Halogen): e arotahi ana ki te iti o ngā tukunga paowa i te wā e tahuna ana, he pai mō ngā wāhi tūmatanui; he rerekē te ātete matū.
– PUR/PU (Polyurethane): he ātete pai rawa atu ki te waikura, te hinu, me ētahi matū; he maha ngā wā e whakamahia ana i roto i ngā umanga me ngā taura pūkoro.
– CPE/CSPE (Polyethylene / Hypalon kua Whakakīia ki te Chloride): e mōhiotia ana he ātete ki te huarere/ozone, ā, he kaha ki te tu atu ki ētahi matū.
Mō ngā takutai moana, he mea nui te whakakotahitanga o te ātete ki te UV, te makuku, me te tote. Mō ngā tipu matū, me manatoko te hototahitanga ki ngā waikawa, ngā kawakore, ngā whakarewa rānei.
2. Pūeru/parenga ā-ringa ārai-waikura
Ko ngā taura ārai e whakamahia whānuitia ana hei tiaki i te pānga, te ngau a ngā kararehe, te ahotea ā-ringa rānei. Heoi anō, ka taea hoki te waikura te ārai whakarewa mēnā he hē te rauemi.
– He kaha, he mea noa te SWA (Stee Wire Armour), engari ka taea e te maitai te waikura i roto i ngā taiao waikura me te kore e tika te tiakitanga.
– He rite tonu te STA (Steel Rīpene Ārai), he angiangi ake, engari me aro tonu ki te waikura.
– He ātete ake te pukupuku kowiri tira ki te waikura, he pai hoki mō ngā taiao tino waikura, engari he nui ake te utu.
– He pai te ātete o te pukupuku waea konumohe ki te waikura i raro i ētahi āhuatanga, ā, he mama ake, engari me tika te hoahoa mō te whakamahinga.
I ngā wā maha, ka taea tonu te whakamahi i te pukupuku rino mēnā ka honoa ki tētahi anga o waho tino piripono, ki tētahi paninga ātete wai, me te tāutanga tika hei ārai i te urunga mai o te makuku.
3. Paparanga ārai wai me te makuku (aukati wai)
Ka tere ake te waikura i te nuinga o te wā nā te wai e rere ana i runga i ngā taura. Mā te hangarau ārai-wai ka ārai i te horapa o te wai mēnā ka whara, ka uru rānei te taura:
– te rīpene ārai wai (ka whānui te rīpene ina pāngia e te wai),
– miro ārai-wai,
– te whakakī-kiri (he mea noa ake i roto i ngā taura whakawhitiwhiti kōrero, engari he rite tonu te ariā).
He tino whai hua tēnei tikanga mō ngā taura o waho, ngā taura tanumia, me ngā whakaurunga tata ki te moana.
4. Te paninga me te tiaki i ngā wāhanga whakarewa
Haunga ngā rauemi ārai, kei ētahi hoahoa he paninga pēnei i te whakapūmau, ngā matū ārai-waikura, ngā paninga pūmua motuhake rānei. Heoi, he mea nui kia mahara ka pakaru, ka pakaru rānei ngā paninga i te wā e tāuta ana. Nō reira, he mea nui tonu te tiaki ā-ringa me ngā tikanga tāutanga tika.
Ngā tono matua o ngā taura ārai-waikura
1. Ngā takutai moana me ngā tauranga
He tino kaha te kohu tote. Me tiaki anō ngā taura mō ngā tauranga, ngā rama waipuke, ngā kerene, me ngā pūnaha papu.
2. Ngā wheketere matū me te tukatuka para
Ka tere te tawhito o ngā taura paerewa nā te kohu matū, ngā tauhiuhi, me ngā hau waikura.
3. Te maina me te ahumahi taumaha
Me whakakikoruatia ngā taura ki te taupoki matotoru, ā, he maha hoki ngā wā ka hipokina ki te whakangungu rakau.
4. Wheketere kai me te inu
Ka whakamahia ngā matū me te rehu wai pēhanga hei horoi i te CIP. Me ātete te taura ki te makuku me ngā kai horoi.
5. Ngā whakaurunga whānui o waho
Ko ngā panera rā, ngā papu whakamakuku wai, ngā rama tiriti, me ngā whakaurunga tūmatanui e hiahia ana ki ngā taura ātete UV me te ua mō te wā roa.
Ngā mea nui i te wā e whiriwhiri ana i ngā taura tiaki ā-waikura
1. Kia mōhio ki te taiao
Ehara i te kupu kotahi te kupu "ārai-waikura". He rerekē ngā āhuatanga o te tote moana i te waikawa whanariki, te haukini, ngā whakarewa rauropi rānei. Whakatauhia:
– te taumata haumākū,
– te pānga ki te hihi UV,
– te tūponotanga o te waipuke,
– momo matū,
- te pāmahana mahi,
– te mōrearea o te pakū, te pānga rānei.
Ka mārama ake ngā āhuatanga, ka tika ake te whiriwhiri i te rauemi o te koti, te pukupuku, me te ārai wai.
2. Kia aro ki ngā paerewa me ngā tiwhikete
Kōwhiria ngā taura e tutuki ana i ngā paerewa e tika ana (ā-motu me te ao) me ngā whakamātautau ātete taiao, pēnei i te ātete UV, te ātete hinu, te ātete ahi rānei, mēnā e tika ana. Mō ngā wāhi morearea, me whai whakaaro anō hoki ki ētahi atu whakaritenga.
3. Kaua e wareware ki ngā taputapu taura
Ka pakaru pea te taura pai mēnā kāore e tika ana ngā taputapu. Ki ngā wāhi waikura, whakamahia:
– ngā repe taura i hangaia ki te maitai kore waikura, ki te parahi rānei,
– he ngongo whakawhāiti wera me te piripiri hei hiri,
– he pouaka hononga o waho kua tika te whakatauranga,
– ngā hononga me te whakakikorua ātete-waikura,
– me te hiri hei ārai i te urunga mai o te wai.
He maha ngā wā ka tīmata te waikura i te pūwāhi whakamutunga—kaua i waenganui o te taura.
Ngā tikanga tāutanga mō te tiakitanga ā-waikura whai hua
– Āraia te pakaru o te koti i te wā e tōia ana: whakamahia he roera, he hinu kukume taura hototahi, me te pūtoro piko e ai ki ngā taunakitanga.
– Kia hiritia ngā repe me ngā hononga: ka taea e ngā āputa iti te huri hei tomokanga mō te horapa o te wai.
– Whakamahia ngā paipa/ngā paipa waikeri, ngā paepae rānei he rauemi ātete-waikura: kāore e tino whai hua ngā taura ātete-waikura mēnā ka tāutahia ki ngā paepae ka tere te waikura, ka hanga hoki i te taiao makuku.
– Whakahaerehia ngā tirotiro auau: tirohia ngā tohu o te ngatata, te pakarukaru, te huri ke te tae, te waikura rānei o te pukupuku me ngā taputapu.
Whakamutunga
He haumitanga nui ngā taura hiko ātete-waikura hei whakarite i te haumaru me te pono o ngā whakaurunga i roto i ngā taiao uaua. Mā te whiriwhiri i te huinga tika o te hipoki o waho ātete-taiao, te pukupuku tika, te aukati-wai, me ngā taputapu whakamutu kounga teitei, ka taea te whakaiti i te mōrearea o ngā pakaru hiko nā te waikura. Hei whakamutunga, mā te taura tika ka roa ake te ora o te whakaurunga engari ka whakaitihia hoki ngā utu tiaki, ka ārai i te wā kore mahi, ā, ka tiaki i te haumaru o te tangata me ngā rawa.
Ki te hiahia koe, ka taea e au te āwhina ki te whakarite i tēnei tuhinga ki tētahi horopaki motuhake—hei tauira, ngā taura ngaohiko iti (0,6/1 kV), ngā taura taputapu, ngā hiahia motuhake rānei pērā i ngā rohe takutai moana, ngā tipu matū, ngā whakaurunga raro whenua rānei—kia tika ake ai ngā taunakitanga.
