نتایج جستجو برای: cable insulation

تعداد نتایج: 21500  

Journal: :E3S web of conferences 2021

Rejuvenation technique on cable insulation failures is a hot topic in improving production benefits for electric related enterprises. Breaking the traditional thought of repair action without extensive former damage scale insulation, proposed starts from local standard geometry elimination or sheaths around failure section(s). And then, one injection molding applied rejuvenation eliminated no m...

Journal: : 2023

The paper proposes a method for estimating the rate of water treeing growth in polymer insulation power cable, taking into account presence higher voltage harmonics. technique allows to predict service life cable used grid with distorted voltage, depending on frequency spectrum this as well select at design stage line calculated value nominal will be same when operating normally. To implement t...

Journal: :Kardiologia polska 2014
Barbara Małecka Andrzej Ząbek Andrzej Ciaś Janusz Stępiński Andrzej Kutarski Jacek Rońda Jacek Lelakowski Janusz Małecki

BACKGROUND The passage of a lead in tissues and in the cardiovascular system depends on the implantation technique. The structure of the leads, which is a combination of two or more materials, triggers their wear. Breakage of the external pacemaker (PM) lead insulation causes unsealing of the lead and exposure of its internal spaces, which can be the anchor of lead-dependent infective endocardi...

سامی, تقی , شهرتاش, سید محمد , غلامی, احمد ,

The aging of insulating materials can be estimated by an electrical breakdown occurring in electrical components so that the relationship between lifetime, failure probability and reliability of electrical components may be studied using the life models in high voltage cables networks. In last decades with attention to higher features as electrical, thermal, mechanical characteristic, widely cr...

Journal: :IEEE Electrical Insulation Magazine 2021

High voltage direct current (HVDC) cable systems with extruded insulation are becoming increasingly attractive versus the traditional mass impregnated non-draining (MIND) HVDC [1]. Voltage and power ratings of commercially available-after being qualified according to CIGRE Technical Brochure (TB) 496 [2]-are exceeding 500 600 kV 1 GW, respectively [3]-[6]. Of course, still have issues.

Journal: :journal of mining and environment 0
a. mirzaghorbanali school of civil, mining, and environmental engineering, university of wollongong, nsw, australia n. aziz school of civil, mining, and environmental engineering, university of wollongong, nsw, australia

the load transfer mechanisms of cable bolts differ from those for normal rebar bolts. the cable bolts used in mines are basically steel strands with different constructions depending on the number of wires or elements and the way they are laid. tendon bolts (rebar and cable) are normally evaluated for their strength and load transfer properties. the tendon strength can be evaluated by the tensi...

Journal: :IEEE Transactions on Applied Superconductivity 2021

Triaxial HTS AC power cables, that incorporates three phases wound around a single core within cable is considering the optimal solution for low and medium voltages. Such design permits to save expensive conductor increase density transmitted. It difficult transmission capacity of triaxial by increasing its operating voltage therefore, insulation thickness between phases. The other way operatio...

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