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SAFETY for ELECTRICAL INSPECTORS
SE CABLE SIZES vs AMPS
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UNDERGROUND SERVICE LATERALS
VOLTS / AMPS MEASUREMENT EQUIP
VOLTAGE MEASUREMENT METHODS
ZINSCO SYLVANIA ELECTRICAL PANELS
This web page provides the key information articles and references describing the latent safety hazards associated with Federal Pacific Electric Stab-Lok® electrical panels. Canadian Federal Pioneer Stab-Lok® panels are also addressed. This website explains the fire and shock hazards associated with Federal Pacific Electric Stab-Lok® circuit breakers and service panels, provides a history of the issue, recounts research on FPE failures, and recommends replacement of the panels.
Replacement FPE Stab-Lok® circuit breakers are unlikely to reduce the failure risk of this equipment. We recommend that residential FPE Stab-Lok® electrical panels be replaced entirely or the entire panel bus assembly be replaced, regardless of FPE model number or FPE year of manufacture. We do not sell circuit breakers nor any other products. Links at this website include FPE electricians and FPE Panel replacement options.
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Photographs are provided to aid in identification of Federal Pacific FPE Stab-Lok® equipment. For FPE Stab-Lok® electric panel replacement, we offer list of licensed electricians who can perform an electrical panel replacement or repair. FPE-experienced electricians can be listed at no fee. The web author has no business, financial, or other connection with this product nor with its replacement.
Electronic copies and reproduction of this information at other websites are prohibited. Readers are welcome to make and distribute printed copies of our articles about FPE Stab-Lok® equipment provided this web page is cited and provided that the content is not edited or changed. (Contact us to suggest edits, changes, corrections, updates).
Federal Pacific Electric "Stab-Lok® " service panels and breakers are a latent hazard and can fail to trip in response to overcurrent, leading to electrical fires. The breakers may also fail to shut off internally even if the toggle is switched to "off." Some double-pole (240-Volt) FPE circuit breakers and single-pole FPE Stab-Lok® circuit breakers simply do not work safely. There are other panel-defects independent of the breaker problems, panel and panel-bus fires and arcing failures in some equipment.
The failure rates for these circuit breakers were and still are significant. In some cases failure to trip occurs 60% of the time - a serious fire and electrical shock hazard. Failures are documented in the CPSC study and by independent research. Additional independent testing and research are on-going and are reported here. FPE Stab-Lok® electrical panels should be replaced. Do not simply swap in some replacement breakers.
The following are key articles on this Federal Pacific Electric FPE Stab-Lok® and Federal Pioneer electrical equipment. The complete list of online articles, government and other public documents, class action activity, and research is at More Information
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