Certificates of deposit, or CDs, are fixed income investments that generally pay a set rate of interest over a fixed time period.
When referenced to the local common or ground, a common-mode signal appears on both lines of a two-wire cable, in-phase and with equal amplitudes. Technically, a common-mode voltage is one-half the vector sum of the voltages from each conductor of a balanced circuit to local ground or common.
Any voltage greater than 40 volts is generally considered potentially (!) dangerous. Voltage of 208V and higher. High voltage is defined by the DOE Electrical Safety Guidelines as over 600 volts. Generally considered to be a wire or cable with an operating voltage of over 600 volts. Any electric potential capable of producing breakdown in air at STP, or around 600volts. A voltage higher than that used for power distribution.