Electrical fires are a menace at home and general use, costing millions of dollars in damages, injuries and lost lives each year. Knowing the reason why they happen, and the proper way of guarding against them means that homes and workplaces can be as safe as possible as far as electrical systems are concerned. In this article we take a look at electrical fire and how safety measures may relate to what is recent or new in terms of, say, super materials like siilicon carbide (SiC) and electrical protection devices.
Bad wiring
Bad wiring is a top cause of electrical fires. Old physical damage and water problems may literally eat away wire insulation so badly that current can cross short out against those wires, or else overheating occurs that melts or causes sparking, arcing etc.
Overloaded circuits
Overloaded circuits could be a potential cause for both domestic and industrial use. Basically, that means that more power, is being drawn through a circuit that it was designed for. This happens all the time when lots of high power draws need to be shared on the same circuit. Overloaded circuits are a very common thing in old houses too.Short Circuits
A short circuit is said to exist when electricity has a chance to ‘sneak’ past the resistance it would have to meet otherwise; as in the case of the electrical wires in question being frayed, or corIf the current seizes upon the opportunity of finding another way, and going about the necessary resistance, it makes its own resistance, which in this instance is heat rising—sometimes mounting to a blaze.Short circuit.
Short circuit” conditions exist in most instances if the equipment is made of inferior materials, or if lack of that important maintenance is encountered. If you use a corded appliance, see that the cord is properly fitted, and look for that regularly inspected disk, wire mesh, etc.—if necessary.
Malfunctioning appliances—Electric refrigerators, ovens, and microwave ovens too often have one fault in common. Faults of operation brought about by failure to correctly employ them leads to ignition of some part inside their casing, or some other relatively inaccessible part less liable to escape screen trapping heat inside. It could even be the supply of power itself – as in supply within the electronics laboratory. In the instance SiC in power supply applications, Well one can only speak of it in proper activation of the safety features. Failure of them would cause a proper hazard, once again electrical fires.
Human error. It is causing the electric fire! Seen in all its glory, failure not only to properly install and maintain the electric but to properly use certain electrical appliances. Alas!one of us is more to blame than we thought. Those DIY jobs who foray electric circuit without having first been given proper ground training deserve all the trouble they get. Result: improper grounding, circuit, throw, or breaker correctly installed.
Prevention of electric fires. It can be done! A few suggestions on how and why to prevent a fire or two follow. Without going into the charge of arson leveled on the part of the smoker who steps outside and inadvertently leaves a deFroster tray in that frozen pie. Or maybe it was the power in there in the freezer itself… eh? Point is, flag the possibility of conquest of zeepages through pixie power the materials alluded to, and some of those protection devices involved in all applications. Using good materials.Relying on connection material will insure the globes socket an accepted equipment taken on the challenge of bisques or poor wires.A Smiths or nose, traditionally copper wires are being superseded by a more advanced product, silicon carbide (SiC) if it is semiconductor for a better conduction of current and less possible propagation movement loss all the way to get to a load.SiC products like MOSFETs and diodes are more durable with heat so a more valuable assignment of user road heightens the risks of overload and entire circuit overheating for the extremely desirable and effective device that it is to be at making power available to indusfry and home.If the SiC products part can still fall within acceptable boundaries of a few reasonable temperatures, it is a most fit part for systems for photovoltaic power systems intended for the extreme environments into which they can be installed, and even a part of the battery supply systems for the electric vehicle (EV) itself a thermal tool.
That the use of the performance specified SiC part for them improves the safety in the performance of the system and saves all that expense on industrial and home fires occasioned by components on the boards getting too hot.
- Circuit Breakers and Fuses
Circuit breakers are as much a conjugation of the basic part as are fuses a part of any electrical system.Basically they do the job of a switch that will automatically disconnect the power in the system to the circuit being serviced when the current exceeds its normal safe maximum ratings, or shorts out. Basic fuses and circuit breakers have been in the business of fire prevention for quite a while, making sure that excess current cannot flow for too long a period. More advanced types of small electrical protective devices are actually silicon carbide based devices that perform all the functions of a fuse or breaker, and greatly improve its performance in all the previously mentioned ways. - Regular maintenance and inspection
We really cannot stress enough how important it is to be on top of the electrical systems in your place of business, and regularly inspect and/or maintain them.Detecting things like bad wiring or compromised insulation; something awkwardly broken; having it replaced in timely fashion that makes sure that these insidious things, are not poised to take a good bite out of your hind quarters. For industrial purposes like power electronics, or perhaps even silicon carbide manufacture, you will probably wish to maintain a regular program of the inspection of the wiring, filters and protective devices.
Uniformly hermetic devices like these SiC products enjoy a helluva long service life, but nasty environments can be hard on a component, so regular maintenance is the key.SiC diodes, Mosfets and Wafers are much harder to make ‘lazy’ even after years of servicing because thanks to oxide redundancy all SiC devices the maximum die temperature is a hell of a lot tougher of a device for a ‘Fail’ to occur, so there’s less a hope of a failure becoming a fire.
Smart Technology Integration
More of a buzzword. You expect us to wax poetically on the holiday shopping spree being a good way to integrate smart technology, applying our watertight logic, aren’t you? All kidding aside, if we can integrate a little quality and/or smart protection for our electrical systems we can make them that much safer.Smart sensors and alarms will have to monitor the system for unusual or unsafe activity (decrease in current surge protectors, you know the drill) and then the agent themselves to protect that threat the short poses, or warn us. Smart alarm systems can know when you need to have the horse pucky people out or what. And of course we can go with the fast and low cost SiC components too in the smart notification. Chak, chak, chak this all results in yet another verb for Old Man McKinney to grin and bear. And right along with that last problem, we need to figure out the right customer solution and sell it.
Proper Appliance Usage
While you never may think of it that way, proper and correct appliance usage is of utmost importance for fire (and often electrocution prevention too). Make sure all of your gadgets in goods shape, cord checked and so on. Use extension cords in not uncommon fashion. A factory meaning of this is ‘ya better be using some quality grounding and shielding on them SiC based power devices you just built that nice looking cabinet out of. - Fire Safety Training
Not only teaching everybody how to STOP a fire if they See One of course, but also recognize indicators of danger, and learn how to employ the extinguishers correctly. In the case of the ‘smart systems’ we just AC’d about, they best employ smart trained kids too!
Conclusion
When it is rub-a-dub time and whining and crying over all that pesky electrical fire stuff is finished just stopStart the thing once and for all. Easy enough to do really, stopping an electrical fire assuming apply the right material knowledge and cautions. Employ the advanced material that is, ‘SiC’ to boot, and enhance the safety, efficiency and reliability of an electrical device. Just get a high-wire specialist some nice wiring, an electrical protection device, then bill him to death for the bother of the routinely maintaining them; he won’t notice a bit of difference on the quality of that ice-cold terrific last bottle of brewski left in the fridge at your snack bar. You could may be sell him the solution to upgrading it with SiC based devices in them serious power electronics and circuit protection devices then; now that something all to be protected too from everybody’s overheating electrical fault the DO NOT maleficently save you and the kids plenty on it and the Company.!
