What is the problem with Federal Pacific "STab-Lok" panels?
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What is the problem with Federal Pacific "STab-Lok" panels?

Defective electrical components
Electrical systems in residential structures can and do require some attention over time. While the wiring itself will normally last a lifetime some of the other components of the system will require replacement. The National Association of Home Builders has published its research into the typical lifespan of building systems and components at Inspectapedia site at http://www.inspectapedia.comis a great source of information on all these panel types. Mr. Friedman goes into great detail and includes information from the Consumer Products Safety Commission and from a number of research facilities which have conducted testing on several of these panel brands. Searching for any of these brands in Google, Bing or any other search engine will bring up a wealth of sites with information. As with any information from the internet you should be careful of the information that you receive. Anecdotal, misleading and just plain wrong information can be posted by just about anyone and with some small amount of effort and this info can appear to be legitimate. The following information is reprinted from D. Friedman’s Inspectapedia site.
 
What is The FPE Stab-Lok Hazard
Federal Pacific Electric (FPE Stab-Lok®) was a widely-distributed electrical panel brand throughout the United States and under the Federal Pioneer brand, also in Canada very similar product continues to be sold. For years, anecdotes and field reports about FPE Stab-Lok® hazards and defects have been discussed at professional conferences and occasionally in the media. Field reports of recalls, poor and even fraudulent manufacturing & labeling, house fires, and injuries have been reported attributed to this product. Independent testing confirms that FPE Stab-Lok® circuit breakers fail to trip, at times as much as 70-80 percent of the time. We have found no data indicating that circuit breakers from other manufacturers fail at anywhere near this high rate. The equipment is a fire and injury hazard.
  1. Fraudulent FPE Stab-Lok®practice: In 2002, in a class action lawsuit in New Jersey, the Court ruled that over many years FPE had violated the NY Consumer Fraud Act. Specifically, the court found that "... FPE knowingly and purposefully distributed circuit breakers which were not tested to meet UL standards as indicated on their label. This constitutes an unlawful practice proscribed by the Act."[1] The court's decision, which was based on extensive evidence that included FPE's own documents, confirmed long-standing allegations of FPE's fraudulent testing practices. [2]
  2. High FPE Stab-Lok® failure rates: Despite FPE's fraudulent testing and falsified UL labeling, defective FPE Stab-Loc circuit breakers were installed in millions of residences throughout the United States. Tests on more than 500 Stab-Lok breakers from homes across the country show defective performance for about 1/3 of the two-pole FPE Stab-Loc circuit breakers and about 1/5 of the single-pole FPE Stab-Loc circuit breakers in those tests. [3] Most recent FPE Stab-Lok testing of 830 breakers from a New Jersey condominium found failures to trip on response to overcurrent in up to 70% of cases where 2-pole breakers were installed. 80% failure rate has been demonstrated on GFCI breakers, and 100% failures to trip occur on jammed 2-pole breakers experiencing a second overcurrent event. [5]
  3. FPE Stab-Lok® fire & injury hazard: In addition to the failure of these circuit breakers to protect a building and its occupants from dangerous overcurrents, switching an FPE Stab-Lok circuit breaker to the "off" position may leave the breaker "on" internally, risking serious or fatal electrical shock. Based on failure studies and field reports, experts estimate that FPE Stab-Lok panels cause significant annual property damage losses, injuries, and deaths each year. [6]
  4. FPE Stab-Lok® is a latent fire and shock hazard: the presence of the equipment in a home does not itself initiate a failure. Rather, when a dangerous overcurrent occurs, the equipment is likely to fail to provide the safety protection that is expected of circuit breakers. For this reason, an owner's failure to observe a problem "up to now" is absolutely no assurance that the panel is safe. It may simply be that an overcurrent has not previously occurred and the circuit breakers have not been called-on to do their job.
  5. FPE Stab-Lok® equipment violates the National Electrical Code Because of the proven high defect rate, the FPE Stab-Loc breakers do not provide the circuit protection that is required by applicable codes and standards (NEC and UL). This constitutes an increased risk of fire and injury. [4] NEC-240-2 "Equipment shall be protected against overcurrent ..." - a building with FPE a Stab-Lok electrical panel does not meet the requirements of the NEC nor of any other electrical code.
  6. FPE Stab-Lok® field inspection or testing not reliable: There is no practical way that a licensed electrician, inspector, or engineer can determine which breakers in a given electrical panel are seriously defective internally. The only way to do that is by means of functional and life test procedures that they are not trained to do nor equipped to perform. Do not attempt field testing of FPE Stab-Lok® equipment. Doing so risks serious fire or injury, and testing, even simply switching breakers on and off increases the risk of a future failure to trip.
Replace FPE Stab-Lok® equipment: Given these facts, FPE Stab-Lok electrical panels and circuit breakers should be considered an un-due fire and injury risk and we recommend that the equipment be replaced completely. (Do not purchase and install replacement circuit breakers)
[1]
FPE CLASS ACTION LAWSUIT: Partial Summary Judgment decision dated 8/15/2002 -http://inspectapedia.com/fpe/FPEJudgement8-15-02.pdf - by Judge Bryan D. Garruto, J.S.C., Superior Court of New Jersey, Law Division: Middlesex County, Docket No L_2904-97.
[2] FPE Exxon Scandal Article "Exxon Buys a scandal Along With a Company", Business week,July 21, 1980, p. 66.
[3] 2008 - 2007 FPE Stab-Lok TECHNICAL REPORT (revised) - http://inspectapedia.com/fpe/FPE-Hazards-Revised-070525.pdf - an updated test report of independent testing using a larger pool of FPE Stab-Lok circuit breakers than the older CPSC and Wright Malta tests found significantly higher failure rates of FPE Stab-Lok circuit breakers, including a look at critical safety failures (breaker failed to trip at 200% of rated current or jammed) which found up to 80% failure rate for FPE Stab-Lok GFCI circuit breakers (n=4), 12% failure rate for double pole FPE Stab-Lok circuit breakers (n=120), and a 1% failure rate for FPE Stab-Lok single pole circuit breakers (n=345).
[4] Example: Dateline Journal (NJ), Feb 3, 1999, p. 1; and Letter, J. Aronstein to Richard Stern, Office of Compliance, US CPSC, 7 March 2006,
FPE Circuit Breakers - Field Incidents of fire and personal injury" - http://inspectapedia.com/fpe/CPSC-FPE-3JA.pdf
[5] [6] 2010 - "FPE Stab-Lok® Breakers," Dr. Jess Aronstein, to U.S. CPSC, 0/29/2010, Independent testing of 830 circuit breakers from a 63-unit New Jersey condominium, & personal communication
Consumers should report FPE failures and inspection/reporting issues to the U.S. CPSC; also report FPE Stab-Lok equipment failures, FPE home inspection or FPE hazard reporting issues to us
FEDERAL PIONEER equipment: Schneider Electric produces a version of this equipment in Canada under the name Federal Pioneer A Canadian Federal Pacific recall in 1997 - http://inspectapedia.com/fpe/schneider.htm - There has been no "recall" in the U.S. though there is no doubt that the product is hazardous and should be replaced.
Even more information on Federal Pacific Electric “Stab-Lok” panels is available at the Inspectapedia site
http://www.inspectapedia.com/fpe/fpepanel.htm .  Also here are a couple of sites of electrical contractors who also state serious concerns with FPE “Stab-Lok” and several other brands of equipment.
 
The equipment in your home may seem to be functioning as it was intended. The equipment may appear to be in good condition. The equipment may have never been a problem in the past. The bottom line is that if there have been problems with this brand or type of equipment and it should be examined by a licensed, qualified and competent electrical contractor. While the wiring in your home may last a lifetime, the breakers, switches, receptacles and the connections to this equipment are mechanical. Mechanical actions wear out over time. They are subject to failure, loose connection, heat & cool cycles, vibration and a host of other issues. The mechanical components of a home’s electrical system require inspection and maintenance and occasional updating. If you have panels that are marked as FPE “Stab-Lok”, Zinsco, Sylvania, “Push-o-Matic”, or Trumbull have them checked.If the panels, breakers or any components appear to be of an older type, have them examined. There are tons of issues with some of the older equipment and the manner in which many of the systems were installed and maintained. If you have a home that was built 30 or more years ago you should definitely have an electrical contractor go through the system to check for problems.
 
 
 

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