What material is empire tape__________?
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Answer: A. varnished cambric
Explanation
Empire tape is manufactured by coating woven cotton cambric fabric with insulating varnish. This specialized coating process creates a flexible and durable electrical wrapping tape. Varnished cambric provides excellent dielectric strength for cable joint insulation. Insulating tapes protect electrical splices and bus bars from accidental short circuits. Cotton cambric offers good mechanical tensile strength when woven tightly together. Insulating varnish seals the fabric pores against moisture and humidity penetration.
Linemen use empire tape to insulate high voltage motor leads and cable splices. Electrical repair shops rely on varnished cambric for rewinding transformer coils. Proper tape application prevents electrical flashovers in confined terminal boxes. Vulcanised rubber is a cured elastomeric material used for flexible cable insulation. Impregnated paper consists of cellulose fibers soaked in insulating oil or resin. None of the above is incorrect because varnished cambric matches empire tape.
- Subject
- Engineering
- Category
- Electrical Engineering
- Topic
- —
- Difficulty
- medium
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