DC electric power cable
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United States of America Patent
Stats
-
Dec 2, 1986
Grant Date -
N/A
app pub date -
May 3, 1985
filing date -
May 8, 1984
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A DC power cable includes a conductor and an insulation of a thermoplastic resin formed around the conductor. The insulation contains carbon black in an amount of about 0.2 to about 5% of the total weight of the thermoplastic resin and the carbon black, and the ratio of mineral oil absorption (cc/100 g) to specific surface (m.sup.2 /g) in the carbon black is not less than 0.7. The carbon black has the hydrogen content of not more than 0.6% by weight. The specific surface is measured by BET equation. The carbon black has a particle size of 10 to 100 nm.
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