Di-electrical Rigidity

Di-electrical rigidity is defined as the maximum intensity of an electrical field to which insulating material can be exposed without permitting the passage of an electrical discharge.
To test di-electrical rigidity, an eletric tension (voltage) of 1,000 (one thousand) Volt plus twice the nominal tension of the equipment is applied between the two exits of the motor and the equipment’s housing using a device called HIPOT.
Example:

For a 110 Volt equipment the applied tension will be:

1000 + (2 x 110) = 1,220 V.

For a 220 Volt equipment the applied tension will be:

1000 + (2 x 220) = 1,440 V.

As a general rule, VENTISILVA applies 1,500 V to all equipment. Is the client’s specifications so demand, we can guarantee di-electrical rigidity up to 2,100 V.

Metalúrgica Ventisilva Ltda Rua Tobias Barreto, 615 - Mooca - CEP 03168-902 - São Paulo - SP Fone +55 11 2602-2400 - FAX +55 11 2602-2443