Photo- for street lighting : Connection scheme , recommendations for application

Automatic lighting using photoelectric

To fully automate the activation and deactivation of lighting or other appliances can be in their supply chain to install a light barrier for street lighting.Depending on the configuration it can when it is dark turn on the power, and during daylight disable it.

What is the photoelectric

This device is a compound sensor that is sensitive to the light rays from the nutritional chain.As a result, when light enters it, he becomes an insulator, and a conductor becomes dark.Thus, a light switch at night and off at dawn on him.

To adjust the threshold control can be set, which allows foroperation under different conditions.It shall be made on the outside of the housing and at any time can be adjusted.When you rotate it toward the minus device will respond only after dark, but if you put the maximum in the plus side, there will be a reaction since the beginning of twilight.

There are versions of this device, in which a light sensor shall be taken separately from the switch and is connected via a cable.These types are generally used in complex systems, which are placed in special panels where there is no sunlight.

also possible to connect a light barrier, a timer operation.It can be programmed to turn on and off the controller to work.This makes its use at different time intervals.For example, during the day in good light it can even be disconnected from the network clock.Only when approaching the time of its operation, power is supplied.

If the connection goes by a light barrier this scheme, it saves more energy and increases the service life of the system as a whole.The timer has a memory, which is designed for a period of one month to one year.It is possible to take into account the different periods of daylight and make the sensor work more properly.

operating principle of the regulator

Street light barrier has in its structure a special sensor.It may be a photoresistor, phototransistor Phototriac, fototiristory or photodiode.Each of them reacts differently to irradiation with light:

• Resistor type changes the value of its resistance.
• Transistor type controls an electrical signal when irradiated.
• triac type interacts with negative or positive harmonic component and sends a signal to the control circuit, which is placed in it.
• Thyristor type works with a constant current and starts reacting upon irradiation with light.
• diode type by irradiation produces a pulse, which is directly proportional to the light intensity.

Methods for the installation of lighting control

In most cases, a light barrier for street lighting is installed near the light source.But it should be excluded from entering the lighting of the lamp to the controller.To do this in advance to find a shadow, and install it there.

From the regulator body out three wires that need to be properly connected to the network and the lamp:

• Brown conductor is connected to the phasemains.
• Blue conductor for zero.Also, it is connected to the conductor of the lamp.
• Red wire is the control and leads directly from the controller to the lamp.

There are times when the network is a separate conductor of the "land" that prevents accidental voltage supplybody.In this case the light barrier, the connection scheme described above is connected as well, but this wire goes directly to the lamp, bypassing the regulator.It is also worth noting that different manufacturers are differences in color coding, so you need to know the fundamental wiring diagram:

• phase is always connected only to the regulator.
• Zero goes to the regulator and to the lamp.
• phase of the lamp comes from the regulator.

Tips for connecting photoelectric

If you want to control the operation of several tubes at the same time, it is necessary to know how to connect a light barrier for a lot ofconsumers.You will need a special controller will receive the signal from the controller and to control the lighting, respectively.

When selecting a light barrier for street lighting should pay attention to the way it is connected.The presence of special terminals for zazhimki wires greatly simplifies installation.If you have to install a light barrier, which has the wiring diagram is not terminal, it is necessary to use a junction box.It will protect reliably connect wires from getting water on them.You also need to see whether there is a case drawn wiring diagram.If it is not, then this manufacturer are not worth much trust.

When installing it is worth remembering that the minimum sensor response limit is 5 lux and this is when it's still light enough.Therefore, the savings in such sensitivity may be called into question.

How to choose a photoelectric

, you must decide to choose the right light barrier to the way it should work, and what additional features are needed.If you want to turn off one light bulb, and the response time is not so important, it is suitable inexpensive photoelectric without regulation possibility.It will be the best solution at the expense of price and functionality.

If you want to control an entire line of lighting, in which case you will need a light barrier with a sensitivity regulator.You will also need the control power switches, that will receive the signal and execute a command for the entire line.

Scope control sensor

In most cases, connecting a light barrier is required for external lighting control.But you can use it for other purposes.This may be a control system of ventilation, watering plants, and other devices.

Advantages of the regulator and manufacturers

If the power supply to the lighting circuit is set street light barrier, it can save a lot of electricity.This will happen at the expense of off lights during daylight hours.It may also be variants of the alignment member with a motion sensor.In this case, the light will work only in cases when it is necessary.

main producers are photoelectric company EKF, TDM, IEK and others.Furthermore, they supply, and other accessories for the assembly and operation controls.

Conclusion

When using a light barrier for street lighting is completely controlled by the period of the glow lamps.They operate only in those time bands when needed illumination.Due to the combination of parallel connection, you can control the whole system of tubes.This automation greatly simplifies the operation and increases the life of the entire system.

As a result of the use of automation saves significant amounts of electricity.Also, there is no need to involve a permanent human intervention to control lighting.

To install a light barrier, wiring diagram is always applied on the body.Also it has a special control that exposes the device's sensitivity to light.Depending on its position, you can set the desired trip abroad.