H - Electricity – 01 – B
Patent
H - Electricity
01
B
H01B 1/24 (2006.01) H01B 5/16 (2006.01)
Patent
CA 2708295
The present invention relates to an electric article, particularly an electric cable or an accessory thereof, such as a cable joint or a cable termination, comprising at least one element made from a semiconductive polymeric material, wherein said at least one element is obtained by crosslinking a semiconductive polymeric composition comprising: (a) at least one elastomeric polymer; (b) a filler mixture comprising: (i) at least one first carbon black having a dibutyl phthalate (DBP) absorption number of from 250 to 600 ml/ 100 g; (ii) at least one second carbon black, different from the first one, having a dibutyl phthalate (DBP) absorption number of from 80 to 250 ml/100 g; and (c) at least one graphite having a specific surface area, measured according to the BET method, not higher than 20 m/g.
L'invention concerne un article électrique, plus particulièrement un câble électrique ou un accessoire associé, tel qu'une épissure de câble ou une extrémité de câble, renfermant au moins un élément fabriqué à partir d'un matériau polymérique semi-conducteur, ledit ou lesdits éléments étant obtenus par réticulation d'une composition polymérique semi-conductrice renfermant : (a) au moins un polymère élastomérique, (b) un mélange de charge renfermant : (i) au moins un premier noir de carbone possédant un indice d'absorption de phtalate de dibutyle (DBP) compris entre 250 et 600 ml/100 g, (ii) au moins un deuxième noir de carbone, différent du premier, possédant un indice d'absorption de phtalate de dibutyle (DBP) compris entre 80 et 250 ml/100 g, et (c) au moins un graphite possédant une surface spécifique, mesurée selon la méthode BET, inférieure à 20 m2/g.
Kirby Eades Gale Baker
Prysmian S.p.a.
LandOfFree
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