FTIR analysis of non-ceramic composite insulators
(2004) In IEEE Transactions on Dielectrics and Electrical Insulation 11(4). p.585-596- Abstract
The chemical environment responsible for the brittle fracture failure of composite (non-ceramic) insulators is determined. Also previously reported observations by the authors are verified. Five non-ceramic composite suspension insulators and one composite guide were subjected to FTIR analysis. Out of the six field failed units, five insulators showed significant levels of nitrate on their brittle fracture surfaces with small traces of nitrate also found on the fracture surfaces of the composite guide. The results strongly indicate that the most probable cause of brittle fracture failure of composite HV insulators in-service is the formation of nitrate and thus nitric acid. This is consistent with the observations and conclusions... (More)
The chemical environment responsible for the brittle fracture failure of composite (non-ceramic) insulators is determined. Also previously reported observations by the authors are verified. Five non-ceramic composite suspension insulators and one composite guide were subjected to FTIR analysis. Out of the six field failed units, five insulators showed significant levels of nitrate on their brittle fracture surfaces with small traces of nitrate also found on the fracture surfaces of the composite guide. The results strongly indicate that the most probable cause of brittle fracture failure of composite HV insulators in-service is the formation of nitrate and thus nitric acid. This is consistent with the observations and conclusions previously reported by the authors.
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- author
- Chughtai, Abdul R. ; Smith, Dwight M. ; Kumosa, Lucas S. LU and Kumosa, Maciej
- publishing date
- 2004-08
- type
- Contribution to journal
- publication status
- published
- keywords
- Brittle fracture, Composite insulators, Fourier transform infrared spectroscopy, FTIR, Non-ceramic insulators, Polymer, Polymeric
- in
- IEEE Transactions on Dielectrics and Electrical Insulation
- volume
- 11
- issue
- 4
- pages
- 585 - 596
- publisher
- IEEE - Institute of Electrical and Electronics Engineers Inc.
- external identifiers
-
- scopus:6344235627
- ISSN
- 1070-9878
- DOI
- 10.1109/TDEI.2004.1324348
- language
- English
- LU publication?
- no
- id
- 902e0e84-c0a5-41cd-8a1e-622face7c642
- date added to LUP
- 2022-11-26 13:29:25
- date last changed
- 2022-11-28 08:42:00
@article{902e0e84-c0a5-41cd-8a1e-622face7c642,
abstract = {{<p>The chemical environment responsible for the brittle fracture failure of composite (non-ceramic) insulators is determined. Also previously reported observations by the authors are verified. Five non-ceramic composite suspension insulators and one composite guide were subjected to FTIR analysis. Out of the six field failed units, five insulators showed significant levels of nitrate on their brittle fracture surfaces with small traces of nitrate also found on the fracture surfaces of the composite guide. The results strongly indicate that the most probable cause of brittle fracture failure of composite HV insulators in-service is the formation of nitrate and thus nitric acid. This is consistent with the observations and conclusions previously reported by the authors.</p>}},
author = {{Chughtai, Abdul R. and Smith, Dwight M. and Kumosa, Lucas S. and Kumosa, Maciej}},
issn = {{1070-9878}},
keywords = {{Brittle fracture; Composite insulators; Fourier transform infrared spectroscopy; FTIR; Non-ceramic insulators; Polymer; Polymeric}},
language = {{eng}},
number = {{4}},
pages = {{585--596}},
publisher = {{IEEE - Institute of Electrical and Electronics Engineers Inc.}},
series = {{IEEE Transactions on Dielectrics and Electrical Insulation}},
title = {{FTIR analysis of non-ceramic composite insulators}},
url = {{http://dx.doi.org/10.1109/TDEI.2004.1324348}},
doi = {{10.1109/TDEI.2004.1324348}},
volume = {{11}},
year = {{2004}},
}