I-0.4kv Reel insulation porcelain,53-1I-spool insulator ifakwe izambulela ezingaphezu kwezakhiwo ezimbili.I-conductor iboshelwe phakathi kwezakhiwo zesambulela ezingenhla nezingaphansi, futhi isikhungo sinezimbobo.Ixhunywe ngokuqinile engalweni yesiphambano noma i-splint enezinzipho zokulutha.