SPL los ntawm Tuam Tshoj, yog cov chaw tsim khoom thiab cov khoom lag luam ntawm cov khoom siv hluav taws xob, cov khoom siv hluav taws xob thiab cov tshuab hluav taws xob, tshwj xeeb tshaj yog cov kws tshaj lij hauv cov khoom siv hluav taws xob. Peb cov khoom tseem ceeb hloov pauv yog Tsawg Voltage switchgear, Sab Hauv Tsev AC Hlau Clad Intermediate switchgear thiab Metalclad AC Enclosed switchgear.