Electricity: conductors and insulators – Conduits – cables or conductors – Accessories
Patent
1975-04-09
1977-04-19
Askin, Laramie E.
Electricity: conductors and insulators
Conduits, cables or conductors
Accessories
106 15FP, 138177, 174 91, 174121A, 174138F, 220 63R, 220 88R, 252 81, 260DIG24, 428921, C09K 328, H02G 304, H01R 1352, B65D 2516
Patent
active
040189830
ABSTRACT:
Electric arc and flame protective sheath or boot material for electrical, particularly for high voltage electrical, cables and complex electrical splices, junctures and the like, is precast preferably from a liquid polyvinyl chloride plastisol, preformed into a selected shape of a protective sheath or boot, reinforced and protected against destruction by pre-mixing with a filler of heat resistant fiber containing flame and fire-retardant plasticizer as well as fire-retardant, preferably intumescent, and heat stabilizing substances. The precast sheath or boot is flexible and elastomeric and may be sized and shaped to be slipped upon the cable or joint protectively to further insulate and protect it against electrical arcing, heat or fire.
REFERENCES:
patent: 3019287 (1962-01-01), Newcomb, Jr. et al.
patent: 3209061 (1965-09-01), Mier et al.
patent: 3576940 (1971-05-01), Stone et al.
patent: 3642531 (1972-02-01), Peterson
patent: 3928210 (1975-12-01), Peterson
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