Moving down the street in the dark - a dubious pleasure. On the road may present different obstacles, holes, if not open hatches. And on the way to his house would be advisable not to stumble on the steps or thresholds. This problem is solved by street lights. But gives rise to another problem - how to control the switching on and off as much as possible economically? To do this, there are street light sensor to turn on the light.
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- 1 The device and the relay action principle to automatically turn on the light
- 2 Varieties of light sensors to activate the light
- 3 Technical characteristics of the light barrier for street lighting
- 4 Review of popular models light sensor to turn on the light with prices and reviews
- 4.1 FF-601
- 4.2 DF-600
- 4.3 EKF PS
- 4.4 Photo- DF-602
- 5 Possible connection diagrams for street light barrier connection
- 6 Installation and connection of light barrier for street lighting
The device and the relay action principle to automatically turn on the light
Such types of sensors They may also be called twilight relay, Light sensors or light, photoelectric street lighting. The most important element in the sensor lights on after dark is a photocell. It reacts to light and closes or opens the circuit. Also in the sensor are time relays, fotovyklyuchatel and, in fact, the very lamp.
When changing the level of illumination special resistor or impedance changes photodiode. As a result, through the cell receives a signal to the transistor which in turn transmits a signal relay, and it closes the contacts.
Varieties of light sensors to activate the light
There are several classifications, which you can share all of the sensors. Firstly, they can be divided on the level of management. There are 4 major groups:
- fully automatic mode;
- with the possibility of forced disconnection;
- with cut-off at night to save energy;
- fully customizable human device.
Load types of sensors can be divided into working with conventional lamps with energy-saving and working.
By type of fastening, too, there is a hierarchy: light barrier with remote sensor, Overhead and internal wiring.
Technical characteristics of the light barrier for street lighting
Specifications define the level and the possibility of using sensors. Basic, you can list a few:
- power options. There is usually specified voltage and frequency with which the sensor may operate. The most common - 220 and 50 Hz. Before you connect a light sensor for street lighting, you need to carefully ensure that the voltage and frequency;
- peak current. Allowable current, which can operate with the sensor;
- allowable wattage. Depending on the type of lamp specified maximum number of watts;
- on threshold. It is a measure of light intensity, wherein the sensor is triggered. It is measured in lux (lx). Most often regulated on the spot immediately before attempting to connect a light barrier for street lighting;
- on and off delay. It shows the time intervals between cycles;
- degree of protection. It indicates the level of use in certain circumstances. For example, the ability to install a light barrier for street lighting in particularly humid or cold places.
Less may occur such a parameter as the illumination angle.
Review of popular models light sensor to turn on the light with prices and reviews
Now look at the most popular models of photoelectric, which are used in street lighting. Let us examine for prices and reviews.
FF-601
One of the most popular photo-relay. It is used as a street lamps with light sensor, and in the interior. The maximum can be connected up to 2200 watts. Usage voltage - 220 V, and the current strength - 10 A. Threshold adjustment and stored in the range of 5 to 50 luxes. Buy a light barrier for street lighting is possible for 235 rubles.
Review of the DF-601
Review of the DF-601
Sensor FF-601
DF-600
Cheaper FR-601 analog. Buy a light sensor for street lighting can be for 150 rubles. Maximum power plug lamps is 1300 watts. The load current should not exceed 6 A. It operates in the network sensor 220 V.
Review of the DF-600
Sensor FR-600
EKF PS
The maximum sensor output is 1350 watts. Maximum Current - 6A. Mounted on the surface and uses a network of 220 V. light sensor Price for street lighting - 150 rubles.
Review EKF PS
Review EKF PS
Sensor EKF PS
Photo- DF-602
Connected to this sensor can be up to 1500 watts. Maximum current - 10 A. It should be a light barrier 270 rubles.
Review of the DF-602
Sensor FR-602
Possible connection diagrams for street light barrier connection
Usually the connection is fairly simple. To one terminal connected phase to another, through the load - zero. For example, to connect photoelectric-FF circuit 601 might look like:
At right is the standard version, and the left - an option to turn off a switch. In general, these are two basic options for connecting a light barrier with his hands, on which can be built more complex circuit, depending on the topology.
Installation and connection of light barrier for street lighting
Connection of the sensor light - not as complicated process as you think. There are a few basic rules. Before you connect the light barrier to the lamp, must be installed on the wall of the distributor, which will connect all the wires. For each light barrier has recommended wiring diagram, which is desirable to use. In order that the sensor can collect the maximum number of external rays, it is necessary to install it on a special bracket. Since you can adjust the sensitivity using the knob on which the brightness of a light barrier will react. Any sensor type "day - the night" to turn on the light you need to fix away from direct source of the rays, which is the sensor and includes. If necessary, you can implement an even more cost-effective scheme. For example, to connect a light sensor motion sensor for street lighting. This will only work with a lamp while driving at night.