Working principle and size of household distributi

Distribution box is a massive parameter in data, which generally constitutes a low-voltage forest. According to electrical wiring, switchgear, measuring instruments, protective appliances and auxiliary equipment are required to be assembled in closed or semi closed metal cabinets or panels to form a low-voltage distribution box. Distribution boxes are generally used in families, while distribution cabinets are mostly used in centralized power supply, such as industrial power and building power. Distribution boxes and distribution cabinets belong to complete sets of equipment, distribution boxes belong to complete sets of low-voltage equipment, and distribution cabinets have high voltage and low voltage

distribution box is a massive parameter in data, which generally constitutes a low-voltage forest. According to electrical wiring, switchgear, measuring instruments, protective appliances and auxiliary equipment are required to be assembled in closed or semi closed metal cabinets or panels to form a low-voltage distribution box. During normal operation, the circuit can be connected or disconnected with the help of manual or automatic switch. The commonly used distribution boxes are made of wood and metal. Because the protection grade of metal distribution boxes is higher, metal distribution boxes are more used. So, do you know the working principle of household distribution box? What are the specifications and sizes of household distribution boxes? If you are interested in this, you might as well follow me to understand it

purpose of household distribution box

reasonable distribution of electric energy to facilitate the opening and closing operation of the circuit. It has a high safety protection level and can visually display the conduction state of the circuit

principle of household distribution box

distribution box is a low-voltage distribution box composed of switchgear, measuring instruments, protective appliances and auxiliary equipment assembled in closed or semi closed metal cabinets or panels according to the requirements of electrical wiring. During normal operation, the circuit can be connected or disconnected with the help of manual or automatic switch. In case of fault or abnormal operation, cut off the circuit or alarm with the help of protective appliances. The measuring instrument can display various parameters in operation, adjust some electrical parameters, and prompt or send signals for deviation from the normal working state

household distribution box size

generally speaking, the approximate size of the distribution box is standard in the design, and it can not be customized according to the size in the design. The size provided in the design is only for reference, and the box size is also indicated on the drawing for reference only. The box size can be modified according to different products and on-site construction needs, and the design does not need to be changed. Although it is a reference size, the designer should know the size of the box well, so as to avoid unnecessary trouble caused by too much time difference between the box and the design during construction

the following is the method of estimating the box when I make the design, which can be used as a reference for the landlord. The size calculated by this method is generally larger than the actual size

1. When the electric box is only a lighting electric box or a small power, and the incoming line is less than 10 square meters, if the number of switch bits is less than 20, the switch width plus 20mm on each side is the width of the electric box, the height is the switch height plus 40mm, and the depth is the maximum depth of the switch plus 10mm

2 when the electric box is only a lighting electric box or a small power, and the incoming line is less than 10 square meters, if the number of switches is greater than 20, then the electric box needs to be arranged as two rows of switches. The switch width plus 40mm on each side is the width of the electric box, the height is the switch height plus 40mm, and the depth is the maximum depth of the switch plus 10mm

3 when the electric box is only a lighting electric box or a small power, and the incoming line is less than 10 square meters, if the incoming line switch needs a separate row, the switch width plus 20mm on each side is the width of the electric box, the height is the switch height plus the incoming line switch height plus 40mm, and the depth is the maximum switch depth plus 10mm

4 when the electric box is a power electric box or a power lighting electric box, the algorithm is basically the same as the above. However, when the incoming line is greater than 10 square meters, the bending radius of the incoming line should be considered. Enough space should be reserved for the incoming line of the primary wiring terminal. When two rows of switches are arranged, the wiring layout of the switch should be considered

of course, the size of the electric box is not conclusive, so the actual installation should be considered, depending on the actual wiring diagram and considering how to arrange the switch to arrange the wiring of the primary switch

if all miniature circuit breakers are determined according to the number of bits (18 mm for each), PZ series distribution box has a fixed size, and if the circuit exceeds 80 bits, it can be determined by Party A in the drawing identification (words). The equipment control box identifies the equipment itself, with an incoming line greater than 185mm2 and an output greater than 2 circuits. Try to choose cabinet type, etc

I. electric meter box:

1. The outer frame size of single-phase six epitope black box (width x Height x thickness) is 860x840x170, the embedded wall size (width x Height x thickness) is 790x750x110, the reserved hole (width x Height x thickness) is 810x770x120, and the hole bottom is 1100 above the ground. See the plan for positioning

2. The outer frame size of single-phase four epitope black box (width x Height x thickness) is 610x840x170, the embedded wall size (width x Height x thickness) is 550x750x110, the reserved hole (width x Height x thickness) is 570x770x120, and the hole bottom is 1100 above the ground. See the plan for positioning

3. The outer frame size of single-phase three epitope black box (width x Height x thickness) is 850x550x170, the embedded wall size (width x Height x thickness) is 790x490x110, the reserved hole (width x Height x thickness) is 810x510x120, and the hole bottom is 1400 above the ground. See the plan for positioning

4. The outer frame size of single-phase two epitope dark box (width x Height x thickness) is 610x550x170, the embedded wall size (width x Height x thickness) is 550x490x110, the reserved hole (width x Height x thickness) is 570x510x120, the hole bottom is 1400 above the ground, and the positioning is detailed in the plan

II. Main fuse box

1. The actual size of the main fuse box (width x Height x thickness) is 440x620x165, the embedded wall size (width x Height x thickness) is 400x580x155, the reserved hole (width x Height x thickness) is 420x600x165, the hole bottom is 2000 above the ground, and the positioning is detailed in the plan

III. T-junction box

t-junction box (width x Height x thickness) 290x290x150, embedded wall size (width x Height x thickness) 260x265x125, reserved hole (width x Height x thickness) 280x280x130, the top of the hole is 300 from the bottom of the plate, and the positioning is detailed in the plan

IV. household distribution box

1. A hole (width x Height x thickness) of 350x250x120 is reserved for the distribution box of 15 households, and the bottom of the hole is 2000 above the ground. See the plan for positioning

2. A hole (width x Height x thickness) of 400x250x120 is reserved for the distribution box of 18 households, and the bottom of the hole is 2000 above the ground. See the plan for positioning

3. A hole (width x Height x thickness) of 300x430x120 is reserved for the distribution box of 24 households, and the bottom of the hole is 2000 above the ground. See the plan for positioning

household distribution box specification

serial number Chinese Pinyin prefix Chinese explanation assembly drawing number electrical schematic diagram number

1 JL metering box pxt01pxt01dq series

2 CZ socket box pxt02pxt02dq series

3 ZM lighting box pxt03pxtt03dq series

4 DL power box pxt04pxtt04dq series

5 JC metering socket box pxt05tpxt05dq series

6 JZ metering lighting box pxt06pxt06dq series

7 JD metering power box pxt07pxt07dq series

8 ZC lighting socket box pxt08pxt08dq series

9 DC power socket box pxt09pxt09dq series

10 DZ power lighting box pxt10pxt10dq series

11 HH mixed function box pxt11pxt11dq series

12 Zn smart box pxt12pxt12dq series

editor's summary: the above is the working principle and specifications of household distribution box. I hope to help friends who need it in this regard! If you need more relevant information, please continue to follow our website, and more wonderful content will be presented in the future

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