I-SPL, umvelisi wekhabhathi yokutshintsha kunye nomthengisi e-China, unokubonelela ngeekhabhathi zokutshintsha kwamandla ombane ophantsi, ii-switchgears zangaphakathi ze-AC zentsimbi kunye neentsimbi ezifakwe kwi-AC ezifakwe kwi-switchgears ngexabiso eliphantsi kakhulu le-SPL yokuvelisa nokulawula ngokufanelekileyo. Ngaphezu koko, i-SPL ineqela layo lokurhweba kwihlabathi elibizwa ngokuba yi-SPEEDLINK, elinokubonelela ngokuziswa ngokukhawuleza kunye nokulula kweshishini.