The Electrician’s Mate (EM) rating maintained the ship’s electrical distribution system — switchboards, power distribution panels, generators, motors, and the cable plant running throughout the vessel. Electrician’s Mates worked throughout every compartment on the ship, but their highest asbestos exposure came from three specific sources: asbestos-backed switchgear panels, asbestos-insulated electrical cable, and cable runs through asbestos-insulated machinery spaces.

Publicly filed asbestos litigation records document EM exposure across service periods from the late 1950s through the mid-1970s.

Documented Exposure Sources

Switchgear and Distribution Panels

“[Switchgear] contained asbestos” — publicly filed testimony and expert reports confirm asbestos content in pre-1970 Navy electrical switchgear. High-voltage distribution panels and main switchboards used asbestos board as a backing and insulating material between live bus bars and panel structures. Disassembling switchgear for maintenance — removing panel covers, accessing bus bars, replacing components — disturbed the asbestos board backing, releasing fibers in the confined spaces where switchgear was installed.

“S&C Electric Company / switchgear” — publicly filed litigation identifies specific switchgear manufacturers in the context of Navy asbestos claims.

Asbestos-Insulated Electrical Cable

Pre-1970 electrical wiring throughout Navy vessels was insulated with asbestos-containing materials. Primary sources included:

  • Armored asbestos cable — used in high-temperature applications in engineering spaces
  • Asbestos-wrapped wiring harnesses — throughout machinery spaces and engineering compartments
  • Asbestos-containing cable sheathing — on high-voltage and fire-resistant cable runs

EMs cutting, splicing, and routing cable through machinery spaces and engineering compartments disturbed both the asbestos cable insulation and the asbestos-containing overhead and bulkhead insulation adjacent to cable runs.

Cable Routing Through Machinery Spaces

Electrician’s Mates ran cable through every compartment on the ship — including firerooms, engine rooms, and auxiliary machinery spaces where overhead and bulkhead asbestos insulation was actively deteriorating. Cable routing required working in these spaces for sustained periods, generating bystander exposure from disturbed overhead insulation on top of any direct exposure from the cable work itself.

“Intimate contact with asbestos is possible for electricians” — publicly filed expert testimony specifically addresses the EM exposure pathway from machinery-space cable work.

Documented Work Activities

Publicly filed asbestos litigation records identify the following EM-specific asbestos-releasing activities:

Switchboard and distribution panel maintenance: Removing and reinstalling panel covers, replacing blown fuses, and servicing bus bars on pre-1970 switchgear disturbed asbestos board backing panels that became friable with age. Main switchboard spaces — typically located in enclosed compartments near the engineering spaces — had limited ventilation.

Motor repair and rewinding: Electric motors throughout the ship — driving ventilation fans, pumps, winches, and auxiliary equipment — used asbestos-containing insulation on motor windings in older installations. EMs rewinding or rebuilding motors worked directly with this insulation material.

Generator maintenance: Ship’s service turbine generators (SSTGs) and emergency diesel generators had asbestos-containing insulation on the generator casing and associated electrical connections. EMs maintained the electrical side of these generators, working in close proximity to the asbestos-insulated mechanical components maintained by MMs and Enginemen.

Cable installation and splicing: Running new cable through the ship and splicing existing cable required cutting asbestos-insulated wire — releasing fibers from cut ends — and routing cable through chases and cable trays adjacent to asbestos-covered piping and overhead insulation.

Product Identification Records

Publicly filed asbestos litigation product identification records document Navy Electrician’s Mates with documented exposure:

  • EM (site of exposure: Navy ship) — dated 06/01/1960 — product identification claim in the publicly filed litigation record
  • US Navy Electrician’s Mate — 01/01/1957 — service-period exposure documented in publicly filed product ID records
  • EM, site of exposure 12/31/1957 — additional documented exposure period

“We represent an Electrician’s Mate who identified [asbestos products]” — publicly filed correspondence from asbestos plaintiff attorneys documents EM clients with specific product exposure claims.

Ships and Shore Assignments

“While serving in the US Navy as an electrician…” — deposition testimony documents EM service aboard Navy vessels with asbestos-containing electrical systems.

“Gerald was an electrician’s mate in the US Navy” — specific deponent reference to EM rating in publicly filed litigation.

Electrician’s Mates served aboard all vessel types — aircraft carriers, destroyers, amphibious ships, and auxiliaries — maintaining the ship’s electrical plant regardless of propulsion type. Shore-duty EMs at naval air stations and naval bases maintained the electrical systems of shore facilities that contained the same asbestos-backed switchgear and asbestos-insulated wiring as shipboard systems.

The Aviation Electrician’s Mate (AE) variant maintained aircraft electrical systems aboard carriers — with additional exposure from asbestos-containing aircraft insulation and brake components in the hangar bay and flight deck environments.

The Electrician’s Mate rating qualifies for VA presumptive service connection under 38 CFR § 3.309(d) based on documented below-deck work in spaces with asbestos-containing insulation and hands-on contact with asbestos-backed switchgear and asbestos-insulated cable.

Key documents for an EM claim:

  • DD-214 Block 11 — primary specialty showing EM rate
  • Ship assignments — duty stations from DD-214 or NARA muster rolls
  • Diagnosis — mesothelioma, asbestos-related lung cancer, asbestosis, or pleural disease

Civil claims may run against switchgear manufacturers (General Electric, Westinghouse, S&C Electric), cable manufacturers (Okonite, Essex Wire), and asbestos backing board manufacturers (Johns Manville, Eagle-Picher).

Free, confidential case evaluation: Speak with O’Brien Law Firm — (314) 936-2956

All consultations are free. No fee unless a financial recovery is made on your behalf.


Exposure documentation derived from publicly filed asbestos litigation records including deposition testimony from Navy Electrician’s Mates and product identification records. This does not constitute legal or medical advice.