Abstract: A liquid-level gauge is provided, which includes a body of transparent material having a head part connected to an elongated part with an end region formed with two facets of 45 degrees relative to a vertical line of sight along the elongated part with a common linear tip portion disposable into a matching socket to engage with a liquid-level in an enclosure tank. The liquid-level gauge includes a horizontal second planar member coupled to a first planar member inserted to a slot cut vertically into the elongated part from the common linear tip portion. The first planar member is engraved a first legend on two opposite sides and the second planar member is engraved a second legend on top side facing the two facets. The head part forms an aperture allowing a view of an image bearing the first/second legend when the liquid-level is fully below/above the two facets.

Abstract: Methods and apparatus for fusing high-voltage electrical systems including fuse holding dry wells each of which includes a metallic outer wall, a fuse mount and a chimney tube located between the outer wall and a fuse in the mount. The dry wells may be mounted completely within an associated switchgear tank, partially within and partially without the associated tank, on the outer surface of the tank, or on structural means other than a switchgear tank.

Abstract: A high voltage load interrupter including an oil switch and a vacuum switch, an oil switch operating handle for manual operation of the oil switch, and a vacuum switch operating handle for manual operation of the vacuum switch, in which the oil switch operating handle and the vacuum switch operating handle are so located with respect to each other that the oil switch operating handle cannot be moved to its "switch open" position unless the vacuum switch operating handle is in its "switch open" position and the vacuum switch operating handle cannot be moved to its "switch closed" position unless the oil switch operating handle is in its "switch closed" position.