However, the same combination that makes outdoor activities pleasant can wreak havoc in industrial facilities. Temperature and humidity swings create condensation on concrete slab floors common in many industrial settings. Known as âsweating slab,â this sheen of water can cause big issues with employee safety and product integrity. Following are a few of the common questions about sweating slab, and an example of a company that successfully solved its perspiration problem. What is sweating slab? Condensation occurs when warm, moist air contacts a cold surface.
Electrical impedance is the measure of the opposition that a circuit presents to a current when a voltage is applied. In quantitative terms, it is the complex ratio of the voltage to the current in an alternating current (AC) circuit. Impedance extends the concept of resistance to AC circuits, and possesses both magnitude and phase, unlike resistance, which has only magnitude.
The definition of an impedance is any obstruction, or the measure of the opposition of an electric current to the energy flow when voltage is applied. 1  An example of impedance is when a school marching band cannot participate in a parade because they can't affort the cost of gas for the bus. An example of impedance is a line of resistance within an electrical current. the total opposition offered by an electric circuit to the flow of an alternating current of a single frequency: it is a combination of resistance and reactance and is measured in ohms: the reciprocal of admittance: symbol, Z.