Tilmaamaha
■ Sanduuqa beddelidda gearswitch;
■ Loo isticmaalo AC/DC, bir duuban oo qabow;
■ Si fudud loo maareyn karo;
■ Saddex fiyuus.
Astaamaha
■ Ku habboon in loo isticmaalo AC ama DC;
■ Garaacid badan oo sare iyo hoose;
■ Taarikada dhamaadka sare iyo hoose ee la saari karo;
■ Qalabka gacanta lagu xiro;
■ Dhammaan unugyadu waxa ay maraan tijaabada dielectric ee wakhtiga ku habboon;
■ Xiritaannada waa bir miridhku ilaaliyo.
Farsamada ugu muhiimsan Halbeegga
| Unug | 32A |
| 63A | |
| 100A/125A, 200/400/600A | |
| Wakhti gaaban u adkeysan kara hadda (rms amps 1 ilbiriqsi) | 960A |
| 2000A | |
| 3750A | |
| Awood samaynta wareegga gaaban (amps ugu sarreeya ee 415VAC) | 5.12KA |
| 6.62KA | |
| 8.42KA | |
| Lagu qiimeeyay isku darka wareega gaaban (Qiyaastii rms amps ee 415VAC) | 80KV |
| 81KV | |
| 82KV |