DS/EN 60247:2004
Insulating liquids - Measurement of relative permittivity, dielectric dissipation factor (tan phi) and d.c. resistivity

Standard No.

DS/EN 60247:2004

Release Date

2004

Published By

Danish Standards Foundation

Latest

DS/EN 60247:2004

Replace

DS/IEC 247-1979

Scope

This International standard describes methods for the determination of the dielectric dissipation factor (tan ä), relative permittivity and d.c. resistivity of any insulating liquid material at the test temperature. The methods are primarily intended for making reference tests on unused liquids. They can also be applied to liquids in service in transformers, cables and other electrical apparatus. However, the method is applicable to a single phase liquid only. When it is desired to make routine determinations, simplified procedures, as described in Annex C, may be adopted. With insulating liquids other than hydrocarbons, alternative cleaning procedures may

DS/EN 60247:2004 history

• 2004 DS/EN 60247:2004 Insulating liquids - Measurement of relative permittivity, dielectric dissipation factor (tan phi) and d.c. resistivity
• 1979 DS/IEC 247:1979 Measurement of relative permittivity, dielectric dissipation factor and d.c. resistivity of insulating liquids