The Birth Of Low Voltage Power Cable > 자유게시판

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The other finish of the strap 33 may be mounted to an acceptable location on the ability door, or to a circuit component mounted on the facility door, by suitable permanent or temporary fastening means 34b, similar to a screw or snap fastener. Referring to FIG. 2, in a second embodiment of the invention, somewhat than offering hinge arm assemblies 23, the housing could also be provided with a excessive strength strap assembly 32 for securing the housing door 14 to the housing 12. The strap meeting 32 features a strap 33 made from a excessive power, versatile material, akin to a nylon web belt, having enough strength to assist the housing door 14. The strap 33 is mounted on one finish to the housing 12 by suitable everlasting or temporary fastening means 34a, comparable to a screw or snap fastener. 8-16 and described in column 7, line 25 through column 9, line 27. Alternatively, the housing 12 could simply be permanently mounted within a wall or ceiling using everlasting help brackets. According still additional to the current invention, the low voltage power supply and distribution middle contains circuit means for detecting the road voltage of the excessive voltage power supply, the circuit means including a backup energy provide, akin to a protracted life, rechargeable, DC battery, which is capable of powering a minimum of one low voltage load, the circuit means supplying power to the no less than one low voltage load from the again-up power supply when it detects that the road voltage of the excessive voltage energy supply falls below a predetermined voltage stage.

A monitoring circuit is provided in the system to watch the road voltage of the excessive voltage power provide. When the low voltage power provide is positioned inside a return air plenum, the dampers are positioned to shut the vents in accordance with code necessities. For example, for surface or recess mounting of the low voltage power provide and distribution heart in or on a wall or ceiling, the dampers are positioned such that the vents remain open to supply extra ventilation for the components inside the low voltage energy provide and distribution center for heat elimination via convective heat loss. A still additional object of the present invention is to offer such a low voltage power supply and distribution center which includes emergency power supply and control circuitry for supplying energy to at least one emergency lighting fixture for emergency lighting in response to a loss of a primary source of power. Therefore, for a low voltage power provide and distribution designed to provide 12 volts to remotely located loads, the precise output of the ability supply is on the order of 10.8 volts.

Another object of the invention is to offer such a low voltage power supply and distribution heart with a housing door having a removable area or section such that a dimmer, managed switching machine, or different switching system may be mounted immediately thereto to supply access to such machine without repositioning the housing door. All of the elements of the low voltage power supply and distribution middle are straight mounted to the housing door, and entry to most of the circuit parts, comparable to switches, fuses and circuit breakers, could also be offered instantly by the housing door. Additionally, mounted throughout the housing or on the housing door, the high voltage compartment could comprise switching means such as a switch or dimmer for switching and dimming the supply of excessive voltage power. The housing door 14 is mounted to the housing 12 by a spring hinge assembly 22 and a hinge arm assembly 23. The hinge arm assembly 23 includes a pair of hinge arms 24, 25 that are connected to each other at a pivot location 27. One of many hinge arms 24 is pivotally mounted to the housing 12 by a pivot pin 29 and the opposite pivot arm 25 is pivotally mounted to the housing door 14 by a snap pivot 31. Each of the pivot points 27, 29 and 31 may embody a rivet, bolt meeting, rivet assembly, snap pivot assembly, or different means for permitting pivotal motion of the hinge arms 24, 25 about the pivot places 27, 29 and 31. The snap pivot 31 is of the nicely-identified metal snap fastener building, equivalent to is usually used for example to fasten the waist of pants, and offers the power to "unsnap" to thereby make the housing door removable.

Referring to FIG. 3, the spring hinge assembly 22 is proven in higher detail. Referring now to FIG. 4, the housing door 14 is shown in better detail. Referring also to FIG. 1, the spring hinge assembly 22 permits the housing door 14 to move with respect to the housing 12 in two ways. Referring to FIG. 1, the low voltage power supply distribution heart 10 features a housing 12 and a housing door 14. The housing includes a rear wall 15 left and right aspect partitions 16, 17, a prime wall 18 and bottom wall 19. The aspect, prime and backside partitions 16, 17, 18, 19 prolong perpendicular from the rear wall 15 to thereby form a compartment therein. When the low voltage energy supply and distribution center is mounted in or on a wall or ceiling, the dampers are adjusted to open the vents for heat dissipation by means of convective heat loss. According additional to the current invention, the low voltage energy provide and distribution middle may be surface mounted within a return air plenum, floor mounted on a wall or ceiling, or recess mounted inside a wall or ceiling. The housing door includes the entire circuit components of the low voltage power supply and distribution middle mounted directly thereon.