500kV transmission line insulator water cleaning method

The present invention provides a 500kV transmission line insulator water cleaning method, including: setting the water resistivity of the water and adjustment of the pressure gun; Analyzing tower on wind direction and speed, adjusting the length of the water column in accordance with the wind direction and speed; placed in the gun position set, rinsed sequentially in the order from the bottom insulator 500kV three-phase transmission line; when flushing insulator strings, washed first insulator string leeward side, rear side of the wind rush insulator string for suspension insulator strings, and by the by sequentially rinsing the sheet, sequentially from the start of flushing during rinsing wire side; the insulator is determined whether there is waste water drip irrigation, topical arcing phenomena, and if yes, re-rinsing corresponding insulator. Techniques of the invention can be implemented most of the 500kV transmission line water cleaning operations, reducing the power lines to prevent a flashover occurs, to ensure the security and stability of the power grid, and create a good economic and social benefits.