1, Pole height: ± 5%2, Beam boom height (length): ± 1%3, Rated voltage: 220V (effective quality)4, Rated insulation voltage: 500V (effective quality)5, Rated frequency: 5OHz6, Insulation resistance: ≧ 5OOMQ7, Dielectric strength: can withstand AC 5Ohz, 15OV (effective quality), the experimental v...
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