service lines (service drops)
in an electric utility system. a lower-voltage (generally 110 to 750 volts) electric supply line that carries electricity from secondary distribution supply lines to end user premises.
in an electric utility system. a lower-voltage (generally 110 to 750 volts) electric supply line that carries electricity from secondary distribution supply lines to end user premises.
separation of wood at the growth rings or rays. usually along the barrier zone that forms in the compartmentalization process (CODIT). Ring shake(s). Radial shake(s).