Electrical housing and process for testing the sealed nature of the electrical housing

1. An assembly, comprising:

an electrical housing including an opening adapted to receive an electrical cable and/or an electrical connector, a housing wall delimiting an internal volume of the electrical housing, a test passageway having a dimension and a position in the housing wall adapted to permit testing of a sealed nature of the electrical housing while impeding access to an electrically live element in the internal volume of the electrical housing, and a stop element disposed at an inner end of the test passageway inside the electrical housing; and

a sealing plug adapted to be inserted into the test passageway and sealing the electrical housing, the stop element is adapted to stop insertion of the sealing plug into the test passageway, a longitudinal length of the sealing plug is smaller than a distance between the stop element and an exterior of the housing wall.

2. The assembly of claim 1 , wherein the longitudinal length of the sealing plug forms a free test space inside the test passageway between an end of the sealing plug and the exterior of the housing wall.

3. The assembly of claim 1 , wherein the sealing plug has a head and a body, the head faces the stop element and has a cross-sectional area greater than a cross-sectional area of the test passageway.

4. The assembly of claim 3 , wherein the body of the sealing plug has a blade.

5. The assembly of claim 3 , wherein the sealing plug is positively locked onto the electrical housing inside the test passageway, the head of the sealing plug exerts a pressure on the stop element and/or on an interior edge of the test passageway.