This arcing can be safely quenched if thedielectric strengthbetween the current-carrying contacts increases rapidly during every current zero crossing of thealternatingcurrent. The dielectric strength can be increased in a number of ways, such as by compressing the ionized arcing medium (which accelerat...
Machinery and equipment are vulnerable to damage by the perils that mostcommercial property policiesexclude. Equipment breakdown insurance typically covers these perils, filling in the gaps of commercial property insurance. They include: Mechanical breakdown Electrical currents or charges, arcing, or electr...
The electricity must be at a very high voltage in order to travel across the gap and create a good spark. Voltage at the spark plug can be anywhere from 40,000 to 100,000 volts. The spark plug must have an insulated passageway for this high voltage to travel down to the electrode, ...
What Does Overvoltage Protection Mean? Overvoltage protection is the process of securing an electrical system from the possible damages that may be caused by overvoltage through the use of devices like arcing horns attached to transmission lines and Zener diodes for electronic circuits. Overvoltage ...
What Does The Comparative Tracking Index Mean?The comparative tracking index is similar to the high voltage arc tracking rate (HVTR), it evaluates or measures the capability of a Printed circuit board surface to withstand tracking. In this case, tracking refers to faulty insulation materials that...
This is different from the proof test. Experts recommend proof testing below 50% of the actual dielectric breakdown voltage. It as well involves providing for creepage distance to prevent surface arcing. Hipot testing Dielectric materials come in different thicknesses and types. Not all boards yield...