Video: Puas tuaj yeem siv PVC txoj kab sab nraum zoov?
2024 Tus sau: Stanley Ellington | [email protected]. Kawg hloov kho: 2023-12-16 00:17
PVC kav dej muab kev tiv thaiv rau hluav taws xob ua hauj lwm uas yog faus underground. Tawm ntawm ntau kav dej cov ntawv muaj, PVC kav dej yog suav tias yog qhov zoo tshaj plaws rau sab nraum zoov daim ntawv thov. PVC kav dej yog thiab siv rau ntau hluav taws xob yuav tsum tau Cov khoom no yog yoog raws thiab ruaj khov thiab tiv taus corrosion.
Kuj paub yog, hom conduit yuav tsum siv sab nraum zoov?
Nonmetallic cev is feem ntau yog ua los ntawm PVC thiab yog xaiv zoo rau sab nraum zoov daim ntawv thov nyob. Xiav hluav taws xob tsis yog hlau tubing (ENT) yog rau sab hauv tsev siv nkaus xwb.
Ib yam li ntawd, koj yuav ua li cas thiaj li khiav tau PVC txoj kab uas hla ntawm phab ntsa sab nrauv? Yuav Ua Li Cas Thiaj Li Cuam Tshuam Los Ntawm Sab Nrauv Sab Nraud
- Kauj Ruam 1: Laum lub qhov ntawm phab ntsa.
- Kauj Ruam 2: Xaub txoj kab hla lub qhov.
- Kauj Ruam 3: Txuas cov kav dej thiab LB nqa.
- Kauj Ruam 4: khawb ib lub trench.
- Kauj Ruam 5: Txuas cov kav dej nrog LB nqa.
- Kauj Ruam 6: Txuas cov yeeb nkab PVC thiab lub luj tshib ua ke.
- Kauj Ruam 7: Rub cov hlau los ntawm cov kav dej.
Tsuas yog li ntawd, qhov twg yog PVC conduit tso cai?
Raws li Art. 352 ntawm NEC (saib 2008 NEC Outlaws Some Nonmetallic Materials below), PVC kav dej tuaj yeem zais hauv phab ntsa, hauv pem teb, lossis qab nthab; faus ncaj qha; los yog embedded nyob rau hauv pob zeb nyob rau hauv lub tsev ntawm tej qhov siab.
PVC conduit puas tuaj yeem siv hauv av?
Txoj Cai tau teev tseg tias Teem caij 40 PVC tau ua siv hauv av , qhov twg kav dej hla dhau lub tsev, lossis qhov twg nws hla mus rau hauv lub lamppost. Ib phab ntsa tuab PVC kav dej (hu ua Schedule 80) yuav tsum tau nyob qhov twg kav dej yog nthuav tawm saum qib (sab saum toj av) ntawm ib sab ntawm lub tsev thiab/los yog chaw nres tsheb.
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