relatively stationary position to the housing 12 by set screws 82 84 and 86 as seen in fig8 received in the ramps 152 the right disk 112 can be made of a dielectric glass reinforced polymeric material such as polyetheretherketone plastic or steel disk 112 and sealing disk 99 form a first sealing assembly and disk 96 and sealing disk 98 form a second sealing assembly the first and second sealing assemblies together with sealing material 110 defining a sealing area in the housing the flowable seal material 110 is preferably made of a synthetic rubber compound such as ethylene propylene monomers epm ethylene propylene dimonomers edpm olefins silicone rubbers or fluorinated rubbers and is advantageously incompressible and dielectric advantageously the flowable seal material 110 can be made of the same material as the insulation on the conductors and seals 98 and 99 but with less curing agent this provides chemical compatibility and dielectric equality if flowable seal material 110 has no curing agent and thus is not curable its mooney viscosity is between 10 lm large mandrel to 30lm at 212 u00b0 f when tested according to astm methods d 3346 and d 1646 74 the viscosity of the flowable seal material 110 may be changed by adding small amounts of a curing agent such as.