Nkọwa dị mkpirikpi:

A na-eji ngwaọrụ fọdụrụ ugbu a DZ47L(C45NL) maka nchekwa, megide ọkụ eletrik

leakage na sekit nke 50Hz ma ọ bụ 60Hz, voltaji singlephase 240V, 3 frasi 415V,

gosiri ugbu a ruo 60A. Mgbe mmadụ nwetara ujo eletrik ma ọ bụ ihe fọdụrụnụ

nke sekit karịrị a kapịrị ọnụ uru, RCD nwere ike ebipụ ike n'ime oge nke

0.1s na-echekwa nchekwa nkeonwe na-akpaghị aka na igbochi akụrụngwa site na

mmejọ nke ugbu a fọdụrụnụ kpatara. Site na ọrụ a, RCD nwere ike ichebe

sekit megide ibufe ibu na obere sekit ma ọ bụ enwere ike iji ya mee mgbanwe mgbanwe na-adịghị adịkarị

nke sekit n'okpuru ọnọdụ nkịtị. Ọ dabara na IEC898-87 & IEC 755.