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Not only the voltage should be considered, but also the overall consideration: the number of your garden lights that need to be installed, the total power and the individual power consumption of each lamp, because if you only pay attention to safety, the second floor is right, but the problem is to change from 220V to 36V from the mains, a step-down transformer or converter is required, and due to the decrease in voltage, the current will increase under the same power consumption, and the pure resistance circuit can be calculated according to the following formula: p u i.
Where: p--power (unit: watts).
u--Rated voltage (unit: volts).
i--Current (unit: ampere).
Therefore, if the power of the lamp is very large, the wires needed need to increase the cross-sectional area, which is very uneconomical! On the contrary, if the voltage level is increased, such as 380V, 660V or even 1140V, although the current can be reduced, it is not conducive to personal safety, I advise you to ask a professional to help you choose.
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I don't want you to say it, the lighting circuit voltage provided by our country is 220V, so the manufacturers of electrical appliances are also around this GB national standard to produce all kinds of electric lights, their rated voltage is generally 220V, there is no choice, as for you to talk about safety, I think as long as we do not contact the low-voltage charged body, do not get close to the high-voltage charged body, there is no need to worry.
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At present, the garden lights are more than 220V in China.
Mainly to match the domestic electricity standard.
There are also some special occasions that will use the weak point 12V 24V, but at present it is very limited.
Therefore, around 2020, we will still use 220V mains.
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Domestic garden lights mainly use conventional mains AC220V voltage to do work, and there is more electricity. In fact, it is also possible to use other low-voltage points, but it will be troublesome, and it will also use the method of voltage conversion to change the mains to low voltage, which is still a little more troublesome.
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Ordinary electrical appliances are 220V, such as 36V safe voltage can be used for safety.
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220 is enough, and there is no benefit if it is high!!
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For general garden lights, if TN can meet the sensitivity requirements, there is no need for leakage protection. There are many such practices nowadays. However, if the line is too long, it is more troublesome, the last time I did a square, I wanted to save a point for Party A, using the TN system, but several circuits could not meet the requirements of sensitivity, and then changed the local TT, add leakage, and set the current of 300mA
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The normal one is 220V, and the battery is yes!
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In China, the voltage is 220V, but if you use a special one, such as solar energy, it is not 220V.
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For a 12-square-meter room, if you usually use fluorescent lights, a round shape of about 28W is a ceiling lamp. Therefore, if you use LED, it is about 15W, and it depends on the specific installation height, which is generally in accordance with the height of about 3m.
If it is a bedroom LED light, at least 15W should be used. Referring to the JIS standard, the illumination of the living room is 150LUX, and the luminous flux of 1500LM is required for a 10-square-meter room, while the general LED light efficiency is 80-100LM W, at least 15W LED bulbs are required. LED lighting fixtures, under the same lighting environmental conditions, to achieve the same lighting effect as fluorescent lamps, usually only need half the power of fluorescent lamps.
That is, half the money.
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First of all, the cable for garden lights, you can choose the size of the cable model according to the power.
Secondly, street lamp pole galvanizing process description: road lights, street lights, solar street lights, solar garden lights, high pole lights, garden lights, monitoring poles and other products (hereinafter referred to as street lamp poles) The indispensable part of the production process is galvanizing, the principle of hot-dip galvanizing of street lamp poles is to clean the polished rods, and then solvent treatment, dry and then immerse in zinc liquid, Iron reacts with molten zinc to form an alloyed zinc layer, and the galvanizing process of street lamp poles is as follows: degreasing - washing - pickling - plating - drying - hot-dip galvanizing - separation - cooling and passivation.
The thickness of the hot-dip galvanized alloy layer of the street lamp pole mainly depends on the chemical composition of the steel, such as the silicon content of the steel, the size of the cross-sectional area of the steel, the roughness of the steel surface, the temperature of the zinc pot, the zinc immersion time, the cooling speed, the cold rolling deformation, etc.
The galvanizing method of solar street lamps and solar garden lamps is also the same, each link must be carefully done to pursue the greatest perfection in production, especially the high pole lamp is particularly important when galvanizing.
Finally, a more cost-effective solar garden light pole, it is recommended that you go to Huangchuan Limin Technology to customize one one-to-one according to your situation.
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The cables required for garden lights are mainly the internal cables of garden lights and the main cables of garden lights, generally our 30W LED garden lights internal cables, we use 3 core copper core cables, such as a group of cables with 10 30W LED garden lights, then the total power of a group of cables is 300W, considering the long-distance transmission and reserved load, we generally recommend that the main line cable use 3* copper core cable.
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Abstract: When purchasing garden lights, we must pay attention to the light source power of Tingzhou courtyard lights, and then arrange the installation spacing. The wattage of garden lights can be selected according to different use environments and different light sources, the wattage of garden lights used in general communities is higher than that of private garden lights, and the wattage of sun lamp garden lights is generally lower than that of LED garden lights.
After choosing the appropriate wattage of the garden light, it is necessary to calculate the installation spacing of the garden light according to the wattage and the height of the light pole. Let's find out! 1. How many watts are suitable for the garden lamp.
1. Look at the installation environment.
Residential garden lights.
The main consideration for the installation of garden lights in the community is functional lighting, which is convenient for the people of Juhu to go out at night and ensure the safety of the night, so the wattage of the courtyard lights in the community is generally about 30W, generally not more than 50W.
Private patio lights.
If you want to have a romantic and private courtyard, then the wattage should be lower, and the general disturbance is about 10w, if you want the lighting brightness to be higher, you can choose a garden light of about 50w.
2. Look at the light source.
Solar garden lights.
Typical lampheads for solar garden lights are 6W and 9W, and the maximum power is 12W.
LED garden lights.
The power of the LED garden light source is larger than that of the solar garden light, with a minimum of 20W and a maximum of 100W.
Second, how many meters of courtyard lights.
The lighting spacing of the garden lamp is related to the style of the lamp, the height of the lamp pole and the wattage of the lamp head, the installation spacing of the lawn lamp is relatively short, because its lighting distance is relatively small, and the lighting distance such as wall lamps and street lamps is relatively large, and the installation distance can be larger.
For example: 40 watt LED head, about 6 meters of light poles, about 15-18 meters apart; 60 watt LED head, 8 meters of light poles, spaced around 20-24 meters; 80 watt led head 12 meters light pole interval about 32-36 meters.
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