A method of rapidly separating outlet contacts from plug contacts of an electrical plug at a DC electrical outlet, the DC electrical outlet comprising (i) a sliding contact structure having a base and a plurality of electrical sliding contacts fixed to the base and defining the outlet contacts, (ii) a housing defining an internal chamber with the sliding contact structure being disposed in the housing so as be movable linearly within the chamber, (iii) a fixed member associated with the DC electrical outlet and coupled to the housing such that the housing remains stationary and sliding contacts are accessible to the plug contacts, and (iv) at least one spring disposed between the housing and a surface of the base, the method comprising:
- engaging the plug contacts with the plurality of electrical sliding contacts such that friction between the plug contacts and the plurality of electrical sliding contacts partially compresses the at least one spring to bias the sliding contact structure to engage an internal bottom surface of the housing,
- disengaging the plug contacts partially from the plurality of electrical sliding contacts while the friction between the plug contacts and the plurality of electrical sliding contacts further compresses the at least one spring, and
- disengaging the plug contacts completely from the plurality of electrical sliding contacts to allow the compressed spring to rapidly force the plurality of electrical sliding contacts away from the plug contacts.