Ụlọ elu (220 kV na-ebufe ụlọ elu & 3 ụkwụ tube ígwè ụlọ elu) akụkọ nyocha sitere na Chengdu Product Quality Inspection Institute.
Ụbọchị nyocha (ụlọ elu nnyefe 220 kV): 2019.10
Nyocha ụbọchị (3 ụkwụ tube ígwè ụlọ elu): 2020.4