Cylindrical Electrode With Guard Ring; Iec Standards; Astm Standards - Omicron Lab SPECTANO 100 User Manual

SPECTANO 100 User Manual
13.6

Cylindrical electrode with Guard ring

13.6.1

IEC standards

According to the IEC standards for the analysis of dielectric and resistive properties of solid and liquid
insulating materials
IEC 60250-1969: AC methods for solid insulating material analysis
•
IEC 60247-2004: AC methods for liquid insulating material analysis
•
IEC 62631-3-1-2017-03: DC methods for solid insulating material analysis
•
you can use a Cylindrical electrode test cell with Guard ring for AC and DC method analysis.
IEC 60250-1969 is replaced by IEC 62632-2-1-2018-2. The following table describes the differences
between these two standards:
Table 613-77 Differences between IEC 60250-1969 and IEC 62632-2-1-2018-02
IEC 60250-1969
Frequency 15 Hz to 300 MHz
range
Test cell types Disk electrode with Guard ring
Disk electrode without Guard ring
Cylindrical electrode with Guard ring
Cylindrical electrode without Guard ring
etc.
In comparison to IEC 60250, the latest IEC standards such as 62632-2-1-2018-02 base on the demands
on different frequency ranges.
Note: Cylindrical test cell types are not described anymore in the latest IEC standard for the analysis of
dielectric properties of solid insulating materials.
13.6.2

ASTM standards

The latest ASTM standards for the analysis of dielectric and resistive properties of solid and liquid
insulating materials using Cylindrical electrodes with Guard ring are:
D150-18: AC methods for solid insulating material analysis (replaces ASTM D150-11)
•
D924-15: AC methods for liquid insulating material analysis
•
D257-14: DC methods for solid insulating material analysis
•
82
IEC 62632-2-1-2018-02
0.1 Hz to 10 MHz
Disk electrode with
Guard ring