Me pēhea te tāuta i tētahi mita rere hikohiko?

Te tāutanga o tētahimita rere hikohikoMe tino whai i ngā whakaritenga kia tika ai te ine me te pumau mō te wā roa. Ko ngā mahi tāutanga me ngā whakatūpato matua e whai ake nei:

1. Te Kōwhiringa o te Wāhi Tāutanga

• Āhua o te Paipa Katoa
  Me whakarite kia kī tonu te mita rere i ngā wā katoa. Kaua e tāuta ki te wāhi teitei rawa o te paipa, ki ngā wāhi rānei e kohia ai te hau. Mō te paipa whakapae, me tāuta te pūoko ki runga ake i te tuaka pokapū o te paipa (kia kore ai e whakatōngia ngā paru ki raro).
• Ngā Whakaritenga Wāhanga Paipa Tika
• Wāhanga paipa tika o runga: ≥ 5 ki te 10 ngā wā o te whānui o te paipa (i runga i te āhua o ngā takirere me ngā tuke).
• Wāhanga paipa tika o raro: ≥ 3 ki te 5 ngā wā o te whānui o te paipa.
  Tauira: Mō te paipa DN100, me whakarite te taha whakarunga kia tika te wāhanga paipa o te 500 ki te 1000mm.
• Te karo i ngā pūtake whakararuraru
  Puritia kia matara atu i ngā taputapu kaha o te papa hikohiko pēnei i ngā motuka nui me ngā whakawhiti hiko, me te pupuri i te tawhiti kia kotahi mita te iti rawa.

2. Ngā Whakaritenga Hononga Paipa

• Hononga Flange
  Me whakarite kia papatahi te mata o te flange, ā, whakamahia he gasket hiri (me hototahi te rauemi ki te rauemi i inehia).
  Whakakīia ngā pūtu kia ōrite te āhua hei karo i te turuturu e puta mai ana i te kaha kāore i te ōrite.
• Te Taurite i te Diameter o te Paipa
  Me rite te whānui o te mita rere ki te whānui o te paipa. Mena e hiahiatia ana he whakarerekētanga whānui, whakamahia he paipa whakaiti, he paipa whakawhanui rānei (ko te koki kōne ≤ 15°).
• Ngā Whakaritenga Whenua
  Me tū motuhake te pūoko ki te whenua, ā, ko te ātete tū ki te whenua < 10Ω.
  Mena he mea hanga te paipa ki te rauemi ārai (pērā i te kirihou), me tāuta he mowhiti whenua ki runga, ki raro hoki.

3. Te Aronga Tāutanga o te Pūoko

• Tāutanga Whakapae
  Me whakapae te tuaka hikohiko kia kore ai e pā te kohikohinga o ngā mirumiru ki te ine (e whakaaturia ana i te Pikitia 1).
• Tāutanga Poutū
  Me rere te wai mai i raro ki runga kia kī tonu ai te paipa, kia kore ai hoki e putu ngā matūriki (e whakaaturia ana i te Pikitia 2).

4. Whirihoranga o ngā Takirere o Mua me Muri

• Takirere o Runga
  Me neke atu i te 5 ngā wā o te whānui o te paipa te tawhiti mai i te pūoko. E taunakihia ana kia whakamahia he takirere kuaha, ā, kaua e whakamahia he takirere pūrerehua (tērā pea ka kore e ōrite te tohatoha tere o te rere).
• Takirere o raro
  Ina whakamahia hei whakahaere i te rere, me pupuri te tawhiti o te ≥ 3 ngā wā o te whānui o te paipa mai i te pūoko.

5. Taumata Tiaki me te Taiao

• Kōwhiringa Whakatauranga IP
• Mō ngā taiao maroke o roto: IP65 (ātete ki te puehu, ātete hoki ki te tauhiuhi).
• Mō ngā taiao o waho, mō ngā taiao makuku rānei: IP68 (ārai puehu, ātete wai hoki).
• Te Pāmahana me te Makuku
• Pāmahana āwhiowhio: -25°C ki te 60°C (tirohia te pepa whakatakotoranga taputapu).
• Makuku: ≤ 95%RH (kāore he hauhautanga).

6. Hononga Hiko

• Parenga Taura
  Me whakamahi te taura tohu i tētahi paparanga ārai takirua, ā, me tiaki hoki e tētahi paipa rino motuhake. Kaua e whakatakotoria kia whakarara ki te taura hiko.
• Whakatakotoranga Whenua
  Me hono pono te anga o waho o te pūoko, te anga o waho o te kaitahuri, me te paparanga ārai taura ki te whenua. Kāore e whakaaetia kia whakamahia te waea whenua ki ētahi atu taputapu.

7. Te patuiro me te whakaae

1. Whakatikatika Tūnga Kore
   Ina kī tonu te paipa i te wai engari kāore he rere, me whakarite kia kore te rere (katia ngā takirere o runga, o raro hoki).
2. Whakatikatika Rere Rere
   Mō te whakamahinga tuatahi, i muri rānei i te tiaki, e taunakihia ana kia whakahaerehia te whakatikatika rere tuturu mā te whakamahi i te tikanga rōrahi, te tikanga mita paerewa rānei.
3. Te Whakatau Rapanga Hapa

• Tirohia te kaha o te tohu (me neke atu i te 80% i raro i ngā āhuatanga noa).
• Whakamātauria te ātete whakamarumaru o te hiko (me neke atu i te 20MΩ).
• Tirohia mēnā he ara hiko te koropiko whenua.

Ngā Tapu Tāutanga

1. Ārai i te Pēhanga Kino
   Kaua te paipa o raro e teitei ake i te putanga o te mita rere kia kore ai e pakaru te arai i te pēhanga kino i puta mai i te mimi.
2. Pāpāho Pōkākā Rāhuitia
   Ina neke atu i te 400ppm te kukū o te katote pūhaumāota i roto i te reo i inehia, me whiriwhiri he hiko Hastelloy, he hiko tantalum rānei.
3. Kia tūpato ki ngā wāhi ātete-pahūtanga
   Mena ka tāutahia ki tētahi wāhi ātete-pahū, me whiriwhiri he taputapu haumaru ā-roto e tutuki ana i te tiwhikete ATEX, IECEx rānei.