1. Lapho amandla okusebenza esigaba I no-II se Epholile ilahlekile, isignali ethi “#1, #2 ukwehluleka kokuphakelwa kwamandla” ithunyelwa ngaphandle, futhi isekethe yohambo olupholile lwe-transformer eyinhloko ixhunyiwe. Kufanele kubikwe ku-dispatcher ngokushesha, futhi isethi yokuvikela kufanele ivaliwe.

2. Uma ukushintshwa kwamandla okusebenza esiteji I no-II kwehluleka ngesikhathi sokusebenza, “i-cooler full stop” ivuliwe, futhi i-transformer eyinhloko ye-cooler full stop trip circuit ixhunyiwe ngalesi sikhathi. Kufanele kubikwe ngokushesha ku-dispatcher ukukhubaza le sethi yokuvikela, futhi ukusebenza kwezandla kufanele kwenziwe ngokushesha. Ukushintsha, okufana nokwehluleka kwe-KM1, i-KM2, akukwazi ukuba yinjabulo eqinile.

3. Uma enye yamasekhethi apholile ihluleka, hlukanisa i-cooler circuit engalungile.