DL/T 474.3-2006
Guide for insulation test on site Dielectric dissipation factor test (English Version)

Standard No.

DL/T 474.3-2006

Language

Chinese, Available in English version

Release Date

2006

Published By

Professional Standard - Electricity

Status

Be replaced 2018-07

Replace By

DL/T 474.3-2018

Latest

DL/T 474.3-2018

Replace

DL 474.3-1992

Scope

This standard proposes methods for measuring the dielectric loss factor tanδ and capacitance of high-voltage power equipment, test wiring and judgment standards, focusing on various influencing factors of on-site measurements, possible errors and technical measures to reduce errors. This standard is suitable for measuring the dielectric loss factor tanδ and capacitance of high-voltage power equipment insulation under conditions such as power plants, substations, repair workshops, and laboratories.

DL/T 474.3-2006 Referenced Document

• DL/T 596 Rules for preventive testing of electrical equipment
• JB/T 8169-1999 Coupling capacitors and capacitor dividers

DL/T 474.3-2006 history

• 2018 DL/T 474.3-2018 Guide for insulation test on site Dielectric dissipation factor test
• 2006 DL/T 474.3-2006 Guide for insulation test on site Dielectric dissipation factor test
• 1992 DL 474.3-1992 Guidelines for implementing on-site insulation tests Dielectric loss factor tgδ test

DL/T 474.3-2006 Guide for insulation test on site Dielectric dissipation factor test has been changed from DL 474.3-1992 Guidelines for implementing on-site insulation tests Dielectric loss factor tgδ test.