Area of usage: varnished clothes are used in electrical machines, low-pressure apparatus and devices. Also as flexible interturn and grooving insulation and as different electrical insulating packings or gaskets.
Varnished cloths divide into silk, cotton and Capron cloths.
For impregnation of varnished cloths oily, oily-bituminous, organic-silicon varnishes are used. Also organic-silicon enamels (pigmented vanishes), organic-silicon rubbers’ dissolves are used.
All types of varnished cloths work at temperatures not higher than 105 C (class A). Capron vanished cloth is most extensible and flexible.
In oil-filled transformers oil-resistant cloths LHMS and LKMS are used. LHMS excels with its increased dielectric properties. LKMS excels with its increased extensibility and dielectric properties.
|type||Area of usage||Sizes, mm||Cloth type||
Heat resistance, up to 0 С
|LHM||Flexible electro insulating packings||width 600-1100 thickness 0,06-0,15||silk||105|
|LHMS||Oil resistant flexible electro insulating packings||width 600-1100 thickness 0,06-0,15||silk||105|
|LKM||Flexible electro insulating packings||width 600-1100 thickness 0,10-0,151||Capron||105|
Oil resistant flexible electro insulating packings
|width 600-1100 thickness 0,10-0,151||Capron||105|
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