NDLI: Effects of water salinity, electric stress and temperature on the AC and DC flashover voltages of polytetraflouroethylene

Content Provider	IEEE Xplore Digital Library
Author	Syed, H.Z. Hackman, R.
Copyright Year	2001
Description	Author affiliation: Dept. of Electr. Eng., Windsor Univ., Ont., Canada (Syed, H.Z.)
Abstract	The effects of aging of polytertraflouroethylene (PTFE) by immersion in a saline solution at different temperatures and for different durations on the AC and DC flashover voltages in air at 1.01/spl times/10/sup 5/ Pa and 21.5/spl plusmn/3/spl deg/C are reported. The PTFE specimens were immersed in 10 mS/cm saline solutions, of water and were kept at 0/spl plusmn/1.5/spl deg/C, 21.5/spl plusmn/3/spl deg/C, 44/spl plusmn/1.5/spl deg/C and 98/spl plusmn/2/spl deg/C for duration of up to 125 days. The AC (60 Hz) and DC flashover voltages were measured after 10, 23, 45, 100 and 125 days of immersion. The flashover voltage was found to decrease with increasing immersion time and increasing temperature of the solution. The contact angle, the average surface roughness and the change in the weight of specimens due to the uptake of water were also measured and correlated with the AC and DC flashover voltages.
Starting Page	23
Ending Page	27
File Size	264671
Page Count	5
File Format	PDF
ISBN	0780371801
ISSN	03622479
DOI	10.1109/EEIC.2001.965584
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2001-10-18
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Stress Temperature Flashover Voltage Rough surfaces Surface roughness Aging Time measurement Polymers Plastic insulation
Content Type	Text
Resource Type	Article

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