It is known that space charge is formed in cables insulated with crosslinked polyethylene. It is probable that the crosslinking byproduct or the crosslinked polymer morphology is responsible for the space charge. In order to examine the former possibility, an additive-free low-density polyethylene sheet was soaked in various liquid chemicals including the crosslinking byproducts and space charge distribution inside the sheet was measured under dc voltage application. As a result, space charge appears in the vicinity of the injecting electrode only in the case that the sheet was soaked in the liquids with at least one hydroxyl group in their structures. Therefore, it is concluded that cumyl alcohol, which is the only byproduct with a hydroxyl group in its structure, is responsible for the formation of space charge in polyethylene.
|ジャーナル||Conference on Electrical Insulation and Dielectric Phenomena (CEIDP), Annual Report|
|出版ステータス||Published - 2002|
|イベント||2002 IEEE Conference on Electrical Insulation and Dielectric Phenomena - Cancun, Mexico|
継続期間: 2002 10月 20 → 2002 10月 24
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