Evaluation of pyrolysis and arc tracking on candidate wire insulation designs for space applications

Stueber, Thomas J.; Hammoud, Ahmad; Stavnes, Mark W.; Hrovat, Kenneth

doi:10.1109/elinsl.1994.401416

Cited by 5 publications

(4 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The carbon tracks do not necessarily provide a continuous conductive path, since gaps may exist in the track. Depending on the applied voltage, such gaps may prevent current flow, but when the applied voltage increases or the pressure reduces and the electric field strength exceeds the dielectric strength of the track-gap, arcing can reappear [65]. These small discharges are often too weak to activate standard circuit breakers.…”

Section: B Partial Discharges and Arc Trackingmentioning

confidence: 99%

“…Once the system is re-energized, this arcing activity can reappear, depending on cable design, nature of the insulation material, or degree of damage previously produced [62]. The arc is sustained as the Joule heat generated by the current flow is high enough to continue pyrolizing the insulation, otherwise the arcing event extinguishes [65]. It is known that the arc length at the pressure corresponding to flight altitude is almost twice that corresponding at sea level, whereas the mean electric field in the arc column reduces with pressure.…”

Section: B Partial Discharges and Arc Trackingmentioning

confidence: 99%

See 1 more Smart Citation

Arc Fault Protections for Aeronautic Applications: A Review Identifying the Effects, Detection Methods, Current Progress, Limitations, Future Challenges, and Research Needs

Riba¹,

Moreno-Eguilaz²,

Ortega³

2022

IEEE Trans. Instrum. Meas.

View full text Add to dashboard Cite

Arc faults are serious discharges, damaging insulation systems and triggering electrical fires. This is a transversal topic, affecting from residential to aeronautic applications. Current commercial aircrafts are being progressively equipped with arc fault protections. With the development of more electric aircrafts (MEA), future airliners will require more electrical power to enhance fuel economy, save weight and reduce emissions. The ultimate goal of MEAs is electrical propulsion, where fault management devices will have a leading role, because aircraft safety is of utmost importance. Therefore, current fault management devices must evolve to fulfill the safety requirements of electrical propelled aircrafts. To deal with the increased electrical power generation, the distribution voltage must be raised, thus leading to new electrical fault types, in particular arc tracking and series arcing, which are further promoted by the harsh environments typical of aircraft systems, i.e., low pressure, extreme humidity and a wide range of temperatures. Therefore, the development of specific electrical protections which are able to protect against these fault types is a must. This paper reviews the state-of-theart of electrical protections for aeronautic applications, identifying the current status and progress, their drawbacks and limitations, the future challenges and research needs to fulfill the future requirements of MEAs, with a special emphasis on series arc faults due to arc tracking, because of difficulty in detecting such low-energy faults in the early stage and the importance and harmful effects of tracking activity in cabling insulation systems. This technological and scientific review is based on a deep analysis of research and conference papers, official reports, white papers and international regulations.

show abstract

Section: B Partial Discharges and Arc Trackingmentioning

confidence: 99%

Section: B Partial Discharges and Arc Trackingmentioning

confidence: 99%

Arc Fault Protections for Aeronautic Applications: A Review Identifying the Effects, Detection Methods, Current Progress, Limitations, Future Challenges, and Research Needs

Riba¹,

Moreno-Eguilaz²,

Ortega³

2022

IEEE Trans. Instrum. Meas.

View full text Add to dashboard Cite

show abstract

“…Thus, arc tracking poses a safety hazard [3]. This safety hazard is of particular concern in the aerospace industry [4][5][6]. Typically, arc tracking arises when short-circuit arcs are formed even momentarily between a defective polyimide insulated wire and another conductor, which then pyrolize the insulating material.…”

Section: Introductionmentioning

confidence: 99%

Flame Suppression Technique in Arc Tracking of Circuit Boards

Phonharath

Mitchell

et al. 2007

Volume 5: Electronics and Photonics

View full text Add to dashboard Cite

The problem of arc tracking in power electronic enclosures was studied through simple bench-top experiments aimed at understanding the phenomenon. Experiments were performed to isolate the causes of arc tracking on PCB boards with high-powered electrodes subjected to a Solventol/water mixture contamination. These experiments show that a minimum electrode spacing of 1 mm would be susceptible to arc tracking. A larger spacing of 3.2 mm appears to prevent arc tracking. In the event that arc tracking causes combustion, a passive flame suppression method is indicated. This method comprises of four layers of off-the-shelf expanded metal network. Tests show that the flame is quenched in about one minute, with minimum damage to the plastic enclosure.

show abstract

“…Tests at NASA have shown that arc tracking is extremely difficult to initiate, however Ref. 7 shows that arc tracking re-strike is possible at these low voltages. There was no data to justify changing this assumption.…”

Section: Assumptionsmentioning

confidence: 99%

Risk assessment of wire failures causing uncommanded orbiter RCS firing while docked at the ISS

Datta¹,

Greulich²

Annual Reliability and Maintainability Symposium, 2005. Proceedings.

View full text Add to dashboard Cite

Evaluation of pyrolysis and arc tracking on candidate wire insulation designs for space applications

Cited by 5 publications

References 0 publications

Arc Fault Protections for Aeronautic Applications: A Review Identifying the Effects, Detection Methods, Current Progress, Limitations, Future Challenges, and Research Needs

Arc Fault Protections for Aeronautic Applications: A Review Identifying the Effects, Detection Methods, Current Progress, Limitations, Future Challenges, and Research Needs

Flame Suppression Technique in Arc Tracking of Circuit Boards

Risk assessment of wire failures causing uncommanded orbiter RCS firing while docked at the ISS

Contact Info

Product

Resources

About