Study of the electrical properties of HVAC EPDM Study of the electrical properties of HVAC EPDM and HVAC silicone and HVAC silicone rubber under DC constraint

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REE 2022-1

ABSTRACT

EPDM and Silicone Rubber (SiR) are elastomeric materials used in HVAC cable accessories due to their good mechanical and electrical properties. In this paper one EPDM and one SiR, are characterised for their electrical properties under DC constraint. Bulk DC conductivity and space charge measurements using the pulsed electroacoustic method (PEA) were carried out at different electric fields and temperatures. The electrical behaviour of silicone rubber under DC stress is found to be largely governed by space charges while this effect is more limited for EPDM.

KEYWORDS

EPDM, SiR, DC conductivity, space charge, PEA, HVDC.

AUTHOR NAMES & AFFILIATIONS

MOURAD Maya, HALLER Servane, IGLESIAS Sophie, HENRIKSEN Martin; SuperGrid Institute (France),

Société de l’Electricité, de l’Electronique et des Technologies de l’Information et de la Communication

17 rue de l’Amiral Hamelin  75116 Paris

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Téléphone : (+33) 1 56 90 37 17

N° de SIREN : 785 393 232, Code APE : 9412Z TVA intra-communautaire : FR44 785 393 232
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