Abstract: The disclosure describes a switch extension device and method of installing such a device on a unit of electrical equipment with a closable housing containing a switch and electrically charged components, such as a transformer with a rotary oil safety switch inside the transformer terminal cabinet. The device includes a switch coupling member for mechanically manipulating a switch between at least a first switch position and a second switch position. The switch is disposed inside the closed housing containing components that are electrically charged when the switch is in the first position and not electrically charged when the switch is in the second position. The device also has an extension member with an external portion that extends outside of the closed housing for access by the user without opening the closed housing.

Abstract: The disclosure describes a switch extension device and method of installing such a device on a unit of electrical equipment with a closable housing containing a switch and electrically charged components, such as a transformer with a rotary oil safety switch inside the transformer terminal cabinet. The device includes a switch coupling member for mechanically manipulating a switch between at least a first switch position and a second switch position. The switch is disposed inside the closed housing containing components that are electrically charged when the switch is in the first position and not electrically charged when the switch is in the second position. The device also has an extension member with an external portion that extends outside of the closed housing for access by the user without opening the closed housing.