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There are several methods to clean insulators. 

• Hand clean – The insulator is creased using a hand brush.  This is done de-energized.
• Wet clean – This can be done energized or de-energized using a high pressure insulator washer.
• Dry clean – Can be done energized or de-energized using a dry washer.

A Flashover is a a short from phase to earth.   They are usually very loud (like an explosion) and can cause damage to insulators and hardware fittings.  Flashovers can be a result of allowing contaminants to accumulate on insulator surfaces.  If the contamination is conductive, it will reduce the effective leakage distance of the insulator.  The contaminants on an insulators surface can be fine when it is dry, but if there is a small amount of moisture (but not enough to clean the insulator), the moisture can create a leakage path in the contamination and cause a flashover.

Do you need a qualified live line trainer?  We can help.  Please let us know your requirements.  Contact us at sales@mitsacy.com.

Below is a preliminary list of the basic information required to specify an insulator washer.

1 – Tower heights?

2 – Use – On road /  off road?

3 – Terrain/soil conditions – Hilly, flat,  sandy, marshy, rocky?

4 – Is an aerial lift required?

5 – How big of a tank is required?

6 – How many hose reels required and their lengths?

7 – Number of wash guns required and the nozzle diameters?

8 – Usage – substations / distribution network MV/ HV/EHV?

9 – Chassis type 4×2, 4×4 6×4, etc?

10 – Trailer mounted?