Precision ovens for thermal endurance evaluation of electrical insulating material

Author

Steinhaus, Rudolf R.

Author_Institution

BASF Lacke & Farben AG, Hamburg, Germany

fYear

1993

fDate

4-7 Oct 1993

Firstpage

635

Lastpage

638

Abstract

It is shown how a commercially available oven can be easily modified by means of an iso-box to arrive at a temperature variation of ± 1 K for thermal endurance evaluations. The modified oven meets all requirements as, for instance, given in IEC 216-4-1 or DIN 50 011, Part 12 with respect to construction and air flow. The temperature fluctuation in particular does not exceed ± 0,5 K and a temperature gradient inside the iso-box may be neglected. It is also shown that, in case of twisted pairs, the uncertainty of measurement of the temperature that corresponds to the temperature index can be reduced to ± 4 K

Keywords

insulation testing; DIN 50 011, Part 12; IEC 216-4-1; ageing; breakdown; iso-box; measurement uncertainty; precision ovens; standards; temperature gradient; temperature index; temperature variation; testing; thermal endurance evaluation of electrical insulating material; twisted pairs; Aging; Costs; Dielectrics and electrical insulation; IEC standards; Manufacturing; Ovens; Radio access networks; Solids; Temperature distribution; Testing;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical Electronics Insulation Conference and Electrical Manufacturing & Coil Winding Conference, 1993. Proceedings., Chicago '93 EEIC/ICWA Exposition

Conference_Location

Chicago, IL

ISSN

1071-6270

Print_ISBN

0-7803-0847-6

Type

conf

DOI

10.1109/EEIC.1993.631301

Filename

631301