Electrical Cable Insulation (Asbestos Paper) — Asbestos Exposure Crosswalk

What This Equipment Is

For most of the twentieth century, high-temperature and specialty electrical cable used asbestos paper, asbestos cloth, and asbestos millboard as primary or jacket insulation. The product families included:

  • Asbestos paper-insulated power cable — medium-voltage feeders in industrial plants, ships, and utilities
  • Asbestos-cloth high-temperature wire — appliance, motor lead, and lamp-socket wire
  • Stage-lighting and theatrical cable — high-current feeders to stage-house dimmer boards (see Theater Fire Curtains)
  • Industrial high-temperature wire — connections to heaters, ovens, smelting equipment
  • Marine cable — shipboard power distribution (Navy and merchant vessels)
  • Mining cable — underground power distribution (see Mine Ventilation)
  • Cable-tray fire-stop and barrier components — see Firestop

Modern cable insulation has fully transitioned to thermoplastic, EPR, and XLPE compounds, but legacy installations from pre-1980 remain in service across many industrial facilities.

Why Cable-Insulation Work Was an Asbestos Exposure Pathway

Cable splicing at field junction boxes and terminations involves cutting the cable to length (exposing asbestos paper / cloth at the cut), stripping back the jacket, and installing splice components — direct fiber-handling at close range.

Cable removal during electrical modernization of pre-1980 industrial plants, ships, and utility substations exposes workers to legacy asbestos cable in volume. Pulling cable from conduit, cable tray, or pipe-tunnel routings generates dust along the entire pull length.

Demolition of vintage electrical installations — cable racks in machine rooms, electrical-vault wiring, switchgear feeder runs — concentrates asbestos cable disturbance in compressed shifts.

Manufacturers Named in Asbestos-Cable Litigation

  • General Electric — wire and cable products
  • Westinghouse Electric — wire and cable products
  • Anaconda Wire & Cable — historic cable OEM
  • Phelps Dodge / Rome Cable — cable OEM
  • Okonite — cable OEM
  • Johns-Manville — asbestos paper and cloth supplied for cable insulation
  • Raybestos-Manhattan — asbestos textile products
  • 3M Company — cable splice components

Documented Product References

Images sourced from publicly available product-identification reference materials. Inclusion does not constitute a finding of liability against any company.

Trust Funds That May Apply

  • Manville Personal Injury Settlement Trust
  • Raybestos-Manhattan Asbestos PI Trust

Trades Most Exposed at Cable Work

Industrial-plant electricians, utility-substation electricians, shipboard electrician’s mates and electrical engineers, cable-splicing specialists, electrical modernization contract crews, demolition crews handling vintage cable installations, mining electricians, stage electricians.

Cross-References

Compiled from publicly filed asbestos litigation, EPA / OSHA records on electrical-contractor exposure, and industry-publication histories. Product and company references reflect what has been alleged or documented in publicly filed litigation. This page does not constitute a finding of liability against any company. Not legal advice; consult a licensed attorney about your specific situation.