Lithupa tse chesang tse chitja tse nang le telescoping li na le boiketlo bo boholo bakeng sa motho ea tsamaisang line hobane li li lumella ho etsa mesebetsi e mengata ea kamehla ho tloha fatše. Karolo e holimo e koahetsoeng ka ho feletseng e amohela mefuta e mengata ea lihokelo, kahoo motho ea tsamaisang line a ka khaola li-switch, a nkela lipeipi tse khaotsoeng sebaka le ho koala hape, a tlosa likoahelo tsa lipalo, a faola lifate, a nkela li-bulb sebaka le ho phetha mesebetsi e meng e mengata e fetang. Lithupa li khutšoanyane, e le hore li ka jaroa habonolo literaka tse ngata. Likonopo tse jereng selemo li ka boloka likarolo tse atolositsoeng tsa lisebelisoa li notleletsoe hantle. Ha karolo ka 'ngoe e atolosoa le ho sothoa hanyane, likonopo li kenngoa sebakeng se nepahetseng ho netefatsa hore motho ea tsamaisang line a entse mosebetsi hantle.
1. Tekanyetso e Sebedisitsweng: IEC60855, ASTM F711.
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