Tshawb xyuas Kev Siv Cov Hlau Raws Li Cov Xim Ntawm Cov Hlau Hluav Taws Xob

1. Thaum xaj cov xaim hluav taws xob lossis cov cables, cov xim ntawm cov xov hlau yuav tsum tau qhia

Hauv kev tsim vaj tsev tiag tiag, nws feem ntau pom tias cov xim ntawm cov xaim hauv cov xaim hluav taws xob lossis cable tsis ua raws li qhov yuav tsum tau ua. Rau qee qhov engineering peb -theem teeb pom kev zoo hluav taws xob xaim, peb-phase xov hlau muaj xim tib yam; rau qee qhov engineering ib zaug -theem peb-core teeb pom kev zoo cables, cov xov hlau muaj daj, ntsuab thiab liab. Qhov no tsis tso cai los ntawm qhov tshwj xeeb. Tsis tas li ntawd, txoj kev kho ntawm wrapping ribbon nyob ib ncig ntawm cov hlau yuav tsum tsis txhob noj. Yog li ntawd, thaum xaj hluav taws xob xaim lossis cov xaim tiaj tus hauv ib qhov project, ntxiv rau hom, tus ntoo khaub lig- ntu thiab xim ntawm cov hlau yuav tsum tau qhia.

2. Cov xim ntawm cov hlau tiv thaiv hauv av

The code states that yellow and green insulated wires should be used. "Should" means must, in general, yellow-green insulated wires must be used.

Electronic hlau Hoobkas ncaj muag

3. Cov kab xim nruab nrab

The specification stipulates that the neutral wire should be light blue insulated wire. The meaning of "appropriate" is: use light blue first when conditions permit. In some countries, the neutral wire is white. If a building uses white as a homogenous line due to owner requirements, all neutral lines within the building should be white. If the color of the neutral wire is dark blue, then the color of the phase wire cannot be green, because in dim light there is not much difference between dark blue and green. At this time, when using a single-phase power supply, the phase wire color should be red or yellow.

4. Phase kab xim

Daj, ntsuab thiab liab yuav tsum tau siv. Siv peb lub tsev - theem ua piv txwv. Thaum peb -theem fais fab mov tau nkag mus rau hauv peb lub-theem hluav taws xob lub zog ntsuas lub thawv, cov kab hluav taws xob theem yuav tsum yog daj, ntsuab, thiab liab peb-theem xov hlau; Thaum ib zaug -theem fais fab mov tau nkag mus rau hauv ib qho -theem hluav taws xob lub zog ntsuas lub thawv, cov kab hluav taws xob theem yuav tsum yog daj, ntsuab, thiab liab, feem. Cov xim ntawm theem xaim ntawm peb -cov tub ntxhais sheathed xaim qhia los ntawm ib qho -theem hluav taws xob lub zog ntsuas lub thawv rau lub thawv xa khoom hauv tsev tsis tas yuav tsum yog tib yam li xim ntawm cov xaim xaim . Tsuas yog thaum tus neeg siv siv lub thawv peb-theem hluav taws xob hluav taws xob ntsuas lub thawv, xim ntawm lub thawv xaim ntawm peb-theem hluav taws xob ntsuas hluav taws xob lub thawv nkag rau hauv lub thawv xa khoom hauv tsev yuav tsum yog tib yam li xim ntawm theem kab nkag mus rau peb-theem hluav taws xob lub zog ntsuas lub thawv. Lub thawv xaim nkag mus rau hauv lub thawv xa khoom hauv tsev hauv chav 2-4 tuaj yeem yog ib qho xim daj, ntsuab thiab liab, vim GB50258-96 tsuas yog qhia tias thaum cov xaim siv cov xaim polyphase, cov xim ntawm cov xaim theem yuav tsum tau kom paub qhov txawv yooj yim. Piv txwv li, thaum cov neeg siv hauv Chav 2 poob lub zog, cov kab tuaj ntawm ib theem hluav taws xob ntsuas hluav taws xob hauv Chav 2 yog liab. Ntev npaum li cov kab liab liab nkag mus rau hauv lub tsev raug kuaj xyuas nrog lub tshuab hluav taws xob, qhov txhaum tuaj yeem raug txiav txim. Vim hais tias GB50258-96 tsuas yog hais tias thaum cov kab polyphase siv rau kev xaim, cov xim ntawm cov kab theem yuav tsum tau yooj yim kom paub qhov txawv.

Los ntawm lub thawv ntsuas hluav taws xob mus rau lub thawv xa hluav taws xob ntawm txhua tsev neeg, txoj cai tsim vaj tsev nyob tau teev tseg tias thaj tsam ntawm tus ntoo khaub lig- yuav tsum tsis pub tsawg dua 10mm2. Yog tias cov xim ntawm theem xaim los ntawm lub thawv xa khoom hauv tsev mus rau ib qho -theem hluav taws xob lub zog ntsuas lub thawv yog tib yam li cov xim ntawm cov kab tuaj ntawm ib qho -theem hluav taws xob ntsuas lub thawv, ces 10mm2 hluav taws xob xaim yuav tsum tau yuav hauv peb xim. Kev tsim kho kev nqis peev yuav tsum tau nce ntxiv. Yog tias kev tsim kho raws li cov duab kos, koj tsuas yog yuav tsum tau yuav 10mm2 peb -cov tub ntxhais hluav taws xob xaim, ib qho yog lub teeb xiav nruab nrab xaim, ib qho yog daj -ntsuab ob- xim PE hlau, thiab qhov thib peb yog ib qho ntawm peb xim daj, ntsuab, thiab liab. Ib kab xim.