replaced silicon carbide arresters, negating the need for front-of-wave testing. However, a few users continue to specify front-of-wave tests, and as a historical reference, the table below lists the front-of-wave test levels published in IEEE Std C57.12.00-1980.” Front-of-wave test, voltages in kV The front-of wave test is no longer specified in IEEE C57standards, but is documented for historical purposes Minimum Crest *Specific Time to Application BIL, kV Voltage, kV Sparkover, μs 30 -- -- 45 -- -- 60 -- -- 75 -- -- 95 -- -- 125 -- -- 150 -- -- 200 -- -- 250 -- -- 350 -- -- 45 -- -- 60 -- -- 75 -- -- 95 165 0.5 110 195 0.5 150 260 0.5 200 345 0.5 250 435 0.5 350 580 0.58 450 710 0.71 550 825 0.825 650 960 0.96 750 1070 1.07 825 1150 1.15 900 1240 1.24 1050 1400 1.40 1175 1530 1.53 1300 -- -- 1425 -- -- 1550 -- -- 1675 -- -- 1800 -- -- 1925 -- -- 2050 -- -- 2175 -- -- 2300 -- -- 2425 -- -- *Tolerance on time-to-flashover is minus 0.1 and plus 0.3 μs
replaced silicon carbide arresters, negating the need for front-of-wave testing. However, a few users continue to specify front-of-wave tests, and as a historical reference, the table below lists the front-of-wave test levels published in IEEE Std C57.12.00-1980.” Front-of-wave test, voltages in kV The front-of wave test is no longer specified in IEEE C57standards, but is documented for historical purposes Application BIL, kV Minimum Crest Voltage, kV *Specific Time to Sparkover, μs 30 45 60 75 95 125 150 200 250 350 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 45 60 75 95 110 150 200 250 350 450 550 650 750 825 900 1050 1175 1300 1425 1550 1675 1800 -- -- -- -- -- -- 165 0.5 195 0.5 260 0.5 345 0.5 435 0.5 580 0.58 710 0.71 825 0.825 960 0.96 1070 1.07 1150 1.15 1240 1.24 1400 1.40 1530 1.53 -- -- -- -- -- -- -- -- -- -- 1925 -- -- 2050 -- -- 2175 -- -- 2300 -- -- 2425 -- -- *Tolerance on time-to-flashover is minus 0.1 and plus 0.3 μs
F12-MainCommittee.docx