Abstract: A liquid-cooled load bank is provided. The liquid-cooled load bank can include a base; a heating reservoir coupled to the base, where the heating reservoir includes a reservoir inlet and a reservoir outlet; and at least one heating element adapted for heating liquid within the heating reservoir, where the reservoir inlet comprises an inlet opening in a bottom of the heating reservoir. A method is also provided where the liquid-cooled load bank is used to calibrate and test a cooling system.

Abstract: An arc blast vent for an electrical equipment enclosure has a plate forming a part of the enclosure with triangular cutouts arranged within a regular polygonal area of the plate and having a frame of the plate material in between them. Substantially identical triangle shaped flaps, each having hold downs along and adjacent to a first leg of the triangle for attachment to the plate, and in from the first leg have a line of perforations through the triangle forming a weakened area for a deformable hinge. Each of the triangle shaped metal flaps have the second and third legs with their edges resting without tenacious engagement on the frame of the plate material.

Abstract: An arc blast vent for an electrical equipment enclosure has a plate forming a part of the enclosure with triangular cutouts arranged within a regular polygonal area of the plate and having a frame of the plate material in between them. Substantially identical triangle shaped flaps, each having hold downs along and adjacent to a first leg of the triangle for attachment to the plate, and in from the first leg have a line of perforations through the triangle forming a weakened area for a deformable hinge. Each of the triangle shaped metal flaps have the second and third legs with their edges resting without tenacious engagement on the frame of the plate material.