摘要:
A junction box used for making electrical connections to a photovoltaic panel. The junction box has two chambers including a first chamber and a second chamber and a wall common to and separating both chambers. The wall may be adapted to have an electrical connection therethrough. The two lids are adapted to seal respectively the two chambers. The two lids are on opposite sides of the junction box relative to the photovoltaic panel. The two lids may be attachable using different sealing processes to a different level of hermeticity. The first chamber may be adapted to receive a circuit board for electrical power conversion. The junction box may include supports for mounting a printed circuit board in the first chamber. The second chamber is configured for electrical connection to the photovoltaic panel. A metal heat sink may be bonded inside the first chamber.
摘要:
A hanger bar assembly for a recessed luminaire is disclosed. The hanger bar assembly includes a first hanger bar member having a first attachment structure disposed on an end thereof, and a second hanger bar member having a second attachment structure disposed on an end thereof, the second hanger bar member being adjacent to the first hanger bar member. The first and the second attachment structures each include a first wall having a first fastener aperture and a second wall having a second fastener aperture, the first and second fastener apertures being formed about a common central longitudinal axis.
摘要:
An electrical box assembly includes an electrical box having a removable partition plate that can be positioned between the ends of the electrical box or at the end of the electrical box when two or more of the electrical boxes are ganged together. The electrical box can include a mounting bracket having a body portion attached to a wall of the box for supporting the box during use. A support member is coupled to the mounting bracket and is extendable to a length to contact the opposing wall. The mounting and the support member are independently adjustable with respect to the box.
摘要:
A junction box used for making electrical connections to a photovoltaic panel. The junction box has two chambers including a first chamber and a second chamber and a wall common to and separating both chambers. The wall may be adapted to have an electrical connection therethrough. The two lids are adapted to seal respectively the two chambers. The two lids are on opposite sides of the junction box relative to the photovoltaic panel. The two lids may be attachable using different sealing processes to a different level of hermeticity. The first chamber may be adapted to receive a circuit board for electrical power conversion. The junction box may include supports for mounting a printed circuit board in the first chamber. The second chamber is configured for electrical connection to the photovoltaic panel. A metal heat sink may be bonded inside the first chamber.
摘要:
A support for pipes uses a telescoping strut slidably holding an elongated insert with a threaded post extending outward from the insert, through a slot in the C-shaped cross-section of the struts. A bracket fits over the post and abuts supports opposing edges of the strut. A nut on the post clamps the parts immovably together. The bracket has a depending portion extending below the strut with an opening through which a pipe passes. Two threaded couplers with opposing ramped surfaces encircle the pipe and deform when tightened to clamp the pipe while also clamping opposing sides of the depending portion.
摘要:
A support assembly connected with a stud for securing and guiding conduit and/or cable is provided. The support assembly includes, but is not limited to, a securing arm for securing and guiding the conduit and/or cable and an engaging tab coupled with an end of the securing arm. The engaging tab includes a first engagement member facing a second engagement member, a side engagement member connecting the first and second engagement members together, and a first compressible member extending in a first direction D1 either from the first engagement member towards the second engagement member or from the second engagement member towards the first engagement member. The first compressible member is compressible in a second direction D2 opposite that of the first direction D1.
摘要:
A junction box used for making electrical connections to a photovoltaic panel. The junction box has two chambers including a first chamber and a second chamber and a wall common to and separating both chambers. The wall may be adapted to have an electrical connection therethrough. The two lids are adapted to seal respectively the two chambers. The two lids are on opposite sides of the junction box relative to the photovoltaic panel. The two lids may be attachable using different sealing processes to a different level of hermeticity. The first chamber may be adapted to receive a circuit board. The junction box may include supports for mounting a printed circuit board in the first chamber. The second chamber is configured for electrical connection to the photovoltaic panel. A metal heat sink may be bonded inside the first chamber. The first chamber is adapted to receive a circuit board for electrical power conversion, and the metal heat sink is adapted to dissipate heat generated by the circuit board.
摘要:
A support for pipes uses a telescoping strut slidably holding an elongated insert with a threaded post extending outward from the insert, through a slot in the C-shaped cross-section of the struts. A bracket fits over the post and abuts supports opposing edges of the strut. A nut on the post clamps the parts immovably together. The bracket has a depending portion extending below the strut with an opening through which a pipe passes. Two threaded couplers with opposing ramped surfaces encircle the pipe and deform when tightened to clamp the pipe while also clamping opposing sides of the depending portion.
摘要:
A flame-proof housing (10) of the protection type ex-d is made from two sheet metal blanks that are bent in a u-shaped fashion. They then are fitted into one another and subsequently welded together by means of a peripheral fillet weld without welding seam preparation. A large opening (28) can be provided on one side of the housing (10), which can be closed with a threaded cover or with a flat cover.
摘要:
A two gang electrical box that greatly reduces the time and effort required to mount one or two electrical components to a wall or similar surface. Wall preparation requires only the use of a standard hole saw thereby greatly minimizing installation time. The two gang electrical box includes a plate with an opening therein and a substantially circular sidewall extending from the plate at the periphery of the opening and terminating in a rear wall. Mounting fasteners extending through the plate include clamp arms thereon for securing the electrical box to a wall. The clamp arms can be rotated to either an inward position or an outward position. The sidewall is provided with open areas or recesses to fully accommodate the clamp arms when rotated to the inward position thereby enabling the peripheral wall and clamp arms to pass easily within the wall opening created by the standard size hole-saw.