An explosion-proof housing 10 having at least one pressure relief body 15 arranged in a pressure compensation vent opening 14 of one of the housing parts 12, 13. In order to secure the pressure relief body 15 to the housing part 12, a thickened region 20 of the housing part 12 engages over an edge zone 24 of the pressure relief body 15 along its entire peripheral surface 23 on both of its flat sides 16, 17. A resulting engaging depth Si, which is measured parallel to the flat sides 16, 17, is preferably greater than a thickness D1, D2 of the part of the thickened region 20 engaging over the edge zone 24. The pressure relief element 15 consists of sintered wire mesh. This connection is pressure-resistant and stable over a wide temperature range.

An explosion-proof housing 10 having at least one pressure relief body 15 arranged in a pressure compensation vent opening 14 of one of the housing parts 12, 13. In order to secure the pressure relief body 15 to the housing part 12, a thickened region 20 of the housing part 12 engages over an edge zone 24 of the pressure relief body 15 along its entire peripheral surface 23 on both of its flat sides 16, 17. A resulting engaging depth Si, which is measured parallel to the flat sides 16, 17, is preferably greater than a thickness D1, D2 of the part of the thickened region 20 engaging over the edge zone 24. The pressure relief element 15 consists of sintered wire mesh. This connection is pressure-resistant and stable over a wide temperature range.

An example tap off box is provided that includes a housing, a circuit breaker, a door, and a breaker actuator. The housing includes walls forming an internal enclosure. The circuit breaker is disposed within the housing. The door is secured to the housing to define a housing assembly, the housing assembly enclosing the circuit breaker. The breaker actuator includes a distal end and a proximal end, the distal end coupled to the circuit breaker within the housing assembly, and the proximal end extending outside of the housing assembly. The breaker actuator is capable of being moved at the proximal end to selectively toggle the circuit breaker from at least an ON position to an OFF position.

There is provided a method of improving an electrical link box. The method includes steps of opening the electrical link box to provide access to a space within the electrical link box; inserting an electrical link box safety improving container into the space in the electrical link box; and closing the electrical link box; wherein the electrical link box safety improving container contains a filling material for mitigating blasts in the electrical link box. A safer electrical link box may be provided using the method.

There is provided a method of improving an electrical link box. The method includes steps of opening the electrical link box to provide access to a space within the electrical link box; inserting an electrical link box safety improving container into the space in the electrical link box; and closing the electrical link box; wherein the electrical link box safety improving container contains a filling material for mitigating blasts in the electrical link box. A safer electrical link box may be provided using the method.

A system including a door, a fastener, and a fastener retaining assembly is provided. The fastener is extending at least partially through an aperture in the door. The fastener retaining assembly includes a bracket and a retainer washer. The fastener retaining assembly is attached to the door and retains the fastener to the door. The retainer washer is disposed around the fastener and disposed between the bracket and the door.

An explosion-proof housing, which forms an interior for accommodating components that can form ignition sources. The housing has a first housing part with a first section which has a first face, and a second housing part with a second section which has a second face, the first section and/or the second section being a section of a wall, the first face and the second face delimiting an intermediate region. The first section and the second section are pressed against each other with elastic deformation of the wall section so that the intermediate region is geometrically closed in a flameproof manner by the elastic deformation of the wall section. The invention also relates to a method for producing an explosion-proof connection between a first section of a first housing part with a first face and a second section of a second housing part with a second face of a housing, at least one of the sections being a section of a wall. The invention also relates to a further method for producing an explosion-proof connection between a first section of a first housing part with a first face and a second section of a second housing part with a second face of a housing, at least one of the sections being a section of a wall.

An explosion-proof housing, which forms an interior for accommodating components that can form ignition sources. The housing has a first housing part with a first section which has a first face, and a second housing part with a second section which has a second face, the first section and/or the second section being a section of a wall, the first face and the second face delimiting an intermediate region. The first section and the second section are pressed against each other with elastic deformation of the wall section so that the intermediate region is geometrically closed in a flameproof manner by the elastic deformation of the wall section. The invention also relates to a method for producing an explosion-proof connection between a first section of a first housing part with a first face and a second section of a second housing part with a second face of a housing, at least one of the sections being a section of a wall. The invention also relates to a further method for producing an explosion-proof connection between a first section of a first housing part with a first face and a second section of a second housing part with a second face of a housing, at least one of the sections being a section of a wall.

To safely start and operate electrical devices accommodated in a local electrical room located in a hazardous area, a plant module (2) includes: a group of plant equipment (6) that constitutes a plant; a local electrical room (5) located in a hazardous area (31) defined by presence of combustible gas and accommodating a power device configured to supply electric power to the group of plant equipment (6); a structure (21) supporting the group of plant equipment (6) and the local electrical room (5); and an outside air supply device (64) having explosion-proof properties and arranged at the local electrical room (5) to supply outside air to an inside thereof, wherein the plant module (2) is configured to supply the electric power to the outside air supply device (64) from a non-hazardous area.

A power distribution panel for distributing power to a plurality of components. A modular frame may removably attach in an aperture of a side of a chassis. A first module may be removably attached in an opening of the modular frame. A second module, different from the first module, may be removably attached in the opening of the modular frame.