FIELD: electricity.
SUBSTANCE: preparation method of high voltage insulator (1) including glass or porcelain skirt (2), metal cap (4) and metal pin (6), including the stage of attaching the cap (4) and pin (6) respectively to the above skirt (2) of insulator (1) by means of sealing cement mortar. Sealing cement mortar is obtained by mixing aluminous cement with sand, thus obtaining dry mixture with further mixing of obtained mixture with water. Dry microsilica is also mixed with cement and sand, and before mixture is mixed with water, water solution is added to the above water and it contains water-soluble dispergator containing carboxyl groups and polyester circuits.
EFFECT: increasing mechanical strength.
5 cl, 1 dwg, 1 tbl
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