1970 Our head office founded in Taipei, Taiwan. Named “Yotak” was specialized import the high-low voltage switchgear equipment.
1993 Tieno bought the know-how from Italy former Vei (ISARC and ISARC-P series 12-24-36KV 400-630A Load Break Switch manufacture). Now Tieno has become only one own 100% manufacture and assemble technical/drawing in the market.
Ring Main Units 40.5 KV
40.5 KV 630A 20kA