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Description / Abstract:
This guide describes the apparatus and procedures for the determination of resistivity and polarization characteristics of solid and laminar insulation specimens (considered for use in high direct-voltage power cables) at uniform temperatures from room temperature up to the temperature at which the materials will operate.
NOTE: Data based on measurements at uniform temperatures should be interpreted with caution, recognizing the complexity of dc insulation characteristics under natural temperature gradients occurring in power cables under operating conditions.