Ka kɛɲɛ ni tansɔn hakɛ ye, u be se ka tilan ɲɔgɔn na ka kɛ nɛgɛjuru ye min be se ka yɛlɛma (35 kV ani min be duguma), tansɔn ka juru minw ka bon (110 kV sanfɛ), tansɔn caman wɛrɛ (275{{3}800 kV), ani ultra-ball voltage juru (1000 kV ani sanfɛ). Ka fara o kan, u be se ka tilan AC ni DC ka juruw la ka kɛɲɛ ni kuran ye.
Ka kɛɲɛ ni Ɲɔgɔnkunbɛn cogo ye .
1. Oil-mpregnated papiye min be se ka yɛlɛma: Fanga juru minw be sɔrɔ ni tulu ye-mpregneted papiye lo be ni tariki jan ye. U latanganin lo, u be se ka la u la, u be baara kɛ wagatijan kɔnɔ ani u sɔngɔ man gwɛlɛ. U ka dɛsɛba ye ka danyɔrɔw janya dantigɛ. Dip-seli min tɛ se ka kɛ, o ye o janya dantigɛli ɲɛnabɔ, min b’a to tulu be se ka kɛ, o be se ka kɛ sababu ye ka juruw latanga walisa ka taga ɲɛ n’u ka baara ye.
2. Plastic-ye kuran juruw la: Kuran juru minw be ni plastiki nɛgɛ ye min be bɔ. A ka ca a la, polivinili kɔlɔri, poliyetileni ani kuruwa-li min be ni poliyetileni ye. Plastiki ka juru be ni boon nɔgɔman ye, a ka nɔgɔ ka dilan ani k’a dilan cogo nɔgɔman na, u ka nɔgɔ ani u ka nɔgɔ ka don ani u be se ka sigi ani k’a sɔrɔ u tɛ se ka yɛlɛma. O la, u be baara kɛ kosɔbɛ ka juru hakɛlamanw ni voltage ka juruw ta ani u be yɛlɛma ka kɛ ka juru -mpregneted papiye juru yɛlɛma. A ka dɛsɛba ye dendrite tiɲɛni koo ye, o min b’a to a be se ka baara kɛ ni tansɔnw ye minw ka bon.
3. Rubber- insulated kuran juru: insulation yɔrɔ be dilan ni nɛgɛ ye min be fara ɲɔgɔn kan ni fɛn suguya caaman ye, minw be ɲagami ka ɲɛ, u be bɔ yɛlɛmayɔrɔ la, ani o kɔ, funteni-vulasiyɔn. A ka ɲi ani a be se ka yɛlɛma, o kama a be se ka kɛ yɔrɔ minw na mɔgɔw be to ka yɛlɛma ani u be to ka yɛlɛma.
Nɛgɛdaga minw ka ca ka kɛ ka insulation kɛ, olu ye 11 ye, o ye 10 ye, u ye 1/{1}} butɔnw ɲagamininw ye, etilɛn propilɛni nɛgɛ, ani bulili nɛgɛ.
Ɲɛyirali fɛ, n’an be sɛgɛsɛgɛri kɛ:
1. Low-voltage: A be se ka kɛ ka AC 50Hz yɛlɛmani n’a tilanni yɔrɔw labɛn ni 3kV hakɛ ye ani duguma, ka fanga yɛlɛma.
2. Medium- ani free-voli juru: (a ka ca a la, 35kV ani duguma): PVC ka juruw, poliyetileni ka juruw, cross-li min be ni poliyetileni ye, n’a ɲɔgɔnnaw, n’a ɲɔgɔnnaw.
3. High-voltage ka juru: (a ka ca a la, 110kV ani a sanfɛ): PE ka juruw ani cross- .
4. Ultra-highigh -} ka juruw: (275-800kV). 5. voltage min be se ka yɛlɛma: (1000kV ani a sanfɛ).
