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Uhlolojikelele lwentuthuko nezici ze-vacuum circuit breaker
[Uhlolojikelele lwentuthuko nezici ze-vacuum circuit breaker]: i-vacuum circuit breaker ibhekisela kusiphuli sesifunda esithintana nabo bavalwe futhi bavulwe ku-vacuum.Ama-circuit breaker aqale afundwa yi-United Kingdom kanye ne-United States, abuye athuthukiswa eJapan...Funda kabanzi