Carta, carta kraft, carta isolante, cartoni/cartogeni

paper – carte (dall’Electropedia IEC)

cellulosic paper of certain types, frequently characterized by their relatively high rigidity
Note – In general the term paper is used for cellulosic papers if not otherwise specified. [fonte]

Kraft paper – carta kraft (da Wikipedia)

Electrical insulation paper (da Wikipedia)

(paper) board  – cartoni, cartogeni (dall’Electropedia IEC)
generic term applied to certain types of cellulosic paper frequently characterized by their relatively high rigidity
Note – For some purposes, materials of grammage (mass in grammes per square meter surface area) less than 225 g/m2 are considered to be paper, and materials of grammage of 225 g/m2 or above are considered to be board. [fonte]

Nomex, TUP (thermal upgraded paper)

Nomex (dall’Electropedia IEC)

TUP (dalla IEC 62874:2015)
thermally upgraded kraft paper

Degree of polymerization (of a polymer) (dall'Electropedia IEC)

The average value of the number of monomeric units in the molecules of a polymer
Note – Different average values (number, mass, or viscometric average) can be determined for the same material. [fonte]

Degradation - degrado (of performance) (dall'Electropedia IEC)

An undesired departure in the operational performance of any device, equipment or system from its intended performance
Note – The term “degradation” can apply to temporary or permanent failure. IEV ref. 161-01-19  [fonte]

Power transformer - trasformatore di potenza (dall'Electropedia IEC)

A static piece of apparatus with two or more windings which, by electromagnetic induction, transforms a system of alternating voltage and current into another system of voltage and current usually of different values and at the same frequency for the purpose of transmitting electrical power – IEV ref 421-01-01 [fonte]

Mineral insulating oil - olio minerale, natural esters - estere naturale, Synthetic organic ester - estere sintetico

Mineral insulating oil

insulating liquid derived from petroleum crudes
Note – Petroleum crude is a complex mixture of hydrocarbons with small amounts of other natural chemical substances.
IEV ref. 212-17-02 [fonte]

Natural esters (dalla IEC 62770)
vegetable oils obtained from seeds and oils obtained from other suitable biological materials and comprised of triglycerides
IEC 62770, ed. 1.0 (2013-11)

Synthetic organic ester (dall’Electropedia IEC)
insulating liquid produced from acids and alcohols by chemical reaction
Note – These esters include mono-, di- and polyol-esters.
IEV ref. 212-17-08 [fonte]

Reclaim - rigenerazione, reconditioning - trattamento fisico

Reclaiming (dal Glossario IEC)
elimination of soluble and insoluble contaminants from an insulating liquid or gas by chemical adsorption means, in addition to mechanical means, in order to restore properties as close as possible to the original values or to the levels proposed in this standard
Published in: IEC 60480, ed. 2.0 (2004-10) – Reference number: 3.3.5 – Source: IEV 212-09-05 (modified) [fonte]

Reconditioning (dal Glossario IEC)
process that eliminates or reduces gases, water and solid particles and contaminants by physical processing only
Published in: IEC 60422, ed. 4.0 (2013-01) – Reference number: 3.5 [fonte]

Depolarization (dal Glossario IEC)
process of removing electrical polarization from an electrical insulating material until the depolarization current is negligible
NOTE Depolarization is generally recommended before measuring the resistive properties of an electrical insulating material.
Published in: IEC 62631-1, ed. 1.0 (2011-04) – Reference number: 3.12 [fonte]

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