Insulated Conductors Committee (ICC)
by Glen J. Bertini and Gary A. Vincent
May 8, 2007
Over the last two decades the economical phenylmethyldimethoxysilane (PMDMS) has been used to extend the reliable life of over 75 million feet of medium voltage underground distribution cable. Materials with superior safety and reliability performance have been introduced and are rapidly supplanting the venerable PMDMS, just as tree-retardant cross-linked polyethylene (TRXLPE) formulations replaced cross-linked polyethylene (XLPE) in North America. But for the cost conscious circuit owners such as those in developing economies, the low cost of PMDMS may be attractive. This paper introduces a reformulation of the venerable and inexpensive PMDMS and demonstrates a substantial performance improvement. Finally, all three commercially available technologies are considered in an ingredient-by-ingredient comparison.
- Formulation history of chemical rejuvenation – side-by-side comparison of all commercially available technologies
- Advances in condensation catalysts
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