Zipu ozi-eA na-eji eriri concentric eme ihe dị ka ọkụ eletrikọnụ ụzọ ọrụsite na netwọk nkesa ike ruo mgbe mita mita (karịsịa ebe a chọrọ iji gbochie "oji" mfu ma ọ bụ ike ọkụ eletrik), na dị ka eriri feeder site na mita mita ruo mgbe panel panel ma ọ bụ n'ozuzu nkesa nkesa, dị nnọọ ka akọwapụtara ya na National Electric Code. Enwere ike iji ụdị onye nduzi a na ebe akọrọ na mmiri mmiri, lie ya ozugbo ma ọ bụ n'èzí. Ya kacha okpomọkụ nke ọrụ bụ 90 ºC na voltaji nke ọrụ maka ngwa niile bụ 600V.
Uru:
Karịsịa adabara njikọ otu-adọ si tupu kpọkọta n'elu ahịrị ala voltaji, ibelata ihe ize ndụ nke na-ezu ohi nke ike. Nwụnye na-achọ ọrụ nke nchekwa ikuku nke na-arụ ọrụ n'ime ihe omume mkpirisi mkpirisi n'ihi mgbalị njikọ nzuzo, na-akwụsị nri na ikpughe ihe nwara izu ohi.
Ọkọlọtọ:
UL 854---UL ọkọlọtọ maka eriri mbata ọrụ nchekwa
UL44---UL ọkọlọtọ maka Safety Thermoset-mkpuchi waya na eriri
Ihe owuwu:
Onye ndu: Klas 2aluminom eduzi or aluminum alloy conductor
Mkpuchi: mkpuchi XLPE
Ọbọ n'ime USB: PVC
oyi akwa concentric: aluminum ma ọ bụ aluminom alloy
Ihe mkpuchi eriri USB: Ihe anaghị amị amị
Ọbọ USB: PVC (XLPE/PE) n'ọbọ
Akwụkwọ data
| Ngalaba isi na aha Cross | Onye nduzi | Ọkpụrụkpụ mkpuchi | Onye nduzi concentric | Ọkpụrụkpụ nke USB Shield | Ogologo eriri USB | Ibu USB | Oke. DC Nguzogide nke Onye Nduzi (20 ℃) | |||
| Wire Gauge / AWG | Nọmba | Dayametamm | mm | Nọmba | Dayametamm | mm | mm | n'arọ/km | Ω/km (Oge) | Ω/km (Concentric) |
| Aluminom Alloy Conductor | ||||||||||
| 2X #12 | 7 | 0.78 | 1.14 | 39 | 0,321 | 1.14 | 7.74 | 67 | 8.88 | 8.90 |
| 2X #10 | 7 | 0.98 | 1.14 | 25 | 0,511 | 1.14 | 8.72 | 85 | 5.59 | 5.60 |
| 2X #8 | 7 | 1.23 | 1.14 | 25 | 0,643 | 1.14 | 9.74 | 110 | 3.52 | 3.60 |
| 2X #6 | 7 | 1.55 | 1.14 | 25 | 0,813 | 1.14 | 11.04 | 148 | 2.21 | 2.30 |
| 2X #4 | 7 | 1.96 | 1.14 | 26 | 1.020 | 1.14 | 12.68 | 206 | 1.39 | 1.40 |
| 3X #8 | 7 | 1.23 | 1.14 | 65 | 0,405 | 1.14 | 11.3X17.3 | 262 | 3.52 | 3.60 |
| 3X #6 | 7 | 1.55 | 1.14 | 65 | 0,511 | 1.52 | 13.2X20.2 | 370 | 2.21 | 2.30 |
| 3X #4 | 7 | 1.96 | 1.14 | 65 | 0,643 | 1.52 | 14.7X22.9 | 488 | 1.39 | 1.40 |
| 3X #2 | 7 | 2.47 | 1.14 | 65 | 0,823 | 1.52 | 16.6X26.3 | 640 | 0.88 | 0.89 |
