Everything about the lights and street lamps: choose the best option

By Admin | Garden And Buildings / Landscape Design
05 May 2016

Street lighting in our lives has great importance.Lamps mounted on masts, pillars and overpasses, increase optical visibility in the dark.Light is needed on the broad streets of the metropolis and in the courtyards of small settlements.And if earlier as night guards, pointing the way, the same used on the form and method of dissemination of roadside lights, the street lighting fixtures today are striking external diversity and breadth of application.The zone of influence is not limited to roads and sidewalks - sculptures, fountains, billboards, building facades become active participants in a simple, but very impressive transformation process image of the surrounding space.

Content

History of street lighting ↑

first street lighting system was set up in Amsterdam

in the XVII century thanks to the efforts of fire protection officer - Jan van der Heijden.The grandiose project involves the installation of more than 2500 lanterns designed it without any help.These oil lamps were used until 1840.
successful experience in a hurry to adopt other towns.So in 1807, in London there are gas street lamps that were lit at dusk lamplighters.In Moscow, began to illuminate the streets even earlier - to 1730.

end of the XIX century was the beginning of a new era in which reigned light bulbs.In XX century, they are replaced by gas-discharge lamps used to this day.

requirements street light sources ↑

Outdoor lighting is radically different from the internal design, installation method and specifications.Other priorities determine the particular choice of street lamps.For example, color indicators, which are extremely important when buying lamps for indoor, in this case no significance.At the forefront is the property of both power (light output).

Outdoor lighting is radically different from the internal
Outdoor satisfied, taking into account the negative impact of the external environment

This is important!
Light efficiency - the ratio of the flow of light to its power, in other words - efficiency.Generally, street lights are LEDs (up to 200 lm / W) or discharge (85-150 lm / W).

Lifetime - another indicator that deserves attention.Given that the replacement of street lighting - labor-intensive activities, requires the use of specialized equipment, long-term "life" - a significant plus, which are required to have outdoors.

Landmarks and nuances of selection ↑

Lanterns street lights should be chosen, adhering to the following criteria:

  • climatic features of the territory;
  • traffic in the illuminated area;
  • account the negative impact of the external environment;
  • required light intensity of certain areas;
  • proper installation.

Operation fixtures takes place in conditions of high humidity and temperature changes, so pay attention to the level of protection (IP).The degree of protection indicates the impossibility of penetration of light dust, moisture and foreign bodies.

Street lights function in difficult conditions
One of the interesting options for street lighting

This is important!
compartment for lamps with electrical equipment necessary degree of protection equal to 23 IP, for the lamp compartment - 54 IP.

degree of protection specified in the special table lamp in the passport.The value consists of two numbers:

  • first (1-6) indicates the degree of protection against ingress of solids into the body;
  • second (1-8) demonstrated protection against moisture.

types of street spotlights ↑

Street lamps are divided into two types: general and specialized use.The latter are used in the navy, the army, with the design of outdoor concerts.These include search (navy, army), signal (military ships, lighthouses) and spetseffektnye searchlights (scenic lighting, laser show).We are interested in the first type - general-purpose floodlights, which are indispensable for the lighting of streets, buildings, playgrounds etc.Such equipment is also called incandescent floodlight, because its main function - to maintain the constancy of the illumination area conducive to visual separation of the object from the background and the environment.

Classification diverse street lamps
Round-symmetrical configuration of the line lighting

Classification streetlights quite extensive.According to the principle of light distribution, they are divided into symmetrical and kruglosimmetrichnye.Symmetrical in turn subdivided into odnoploskostnaya and biplanar.
There is a division based on the numerical value of luminous intensity, angle of light and CIL (luminous intensity curves), but the most common classification is based on the type of lamp used.

Powerful halogen spotlights ↑

perfectly conveys the color and create the illusion of sunlight - directional point or soft shadowless.Used for lighting of bridges, buildings, advertising signs.By the principle of action of halogen lamps look like classic incandescent lamps only in the buffer gas is added fluorine, bromine, iodine and other halogens, prolong the "life" of 2 times.

Street halogen lamp
Street halogen lamp: power voltage and the intensity of light can be adjusted with a dimmer

This is important!
Currently available halogen lamps of different capacities - from 3 to 20 000 watts.

Despite the fact that such gas-discharge light sources are not, high light output and color-allow to use them in the most modern models of lighting products.The advantages include the ability to adjust power through dimmer, high security optical compartments and the ability to work in any conditions.

Pros metal halide lamps ↑

light source are the gas-discharge lamps, which give the cold, bright light.This is ideal for lighting exhibition centers, shopping malls, open spaces.The main advantage - immunity to surges.

Metal Spotlight
metal spotlight does not respond to surges

necessary to mention the other benefits: affordability gain technical priorities with a strong body, long life, wide range of color temperatures.

This is important!
metal halide spotlights color temperature ranges from 3,000 to 20,000 K. The highest rates are close to the spectrum of daylight.

productive sodium lamps ↑

characterized by low color rendering, however, show the yellow color spectrum.Most often they are used in landscape design.Lamps equipped with high pressure sodium lamps, the functioning of which is based on the luminescence of sodium vapor in the flask by applying an electrical discharge.

Sodium outdoor lamps
Sodium Outdoor lighting has a high light output at low energy consumption

Sodium energy-saving lamps for street lighting with low color rendering differ quite a high output.This means that these projectors form the yellow light field, leveling the other colors.But a decent life (30 000 hours) puts sodium floodlights in the category of very unpretentious and economical equipment for street lighting.

Innovative LED lamps ↑

from a perfect color reproduction and high contrast.Main advantages - increased service life, economy, high resistance to mechanical impact.Scope of LED street lamps is broad: designers use them in landscaping, interior design, architectural lighting.

This is important!
power LED spotlight is 15-30 W, service life - 100,000 hours.

LED bulbs
LED lamps are a group of light-emitting diodes in a single package

To implement various types of lighting can be used by a single spotlight or group, depending on the objectives pursued.So for lighting large buildings is preferable to install lights around the perimeter at regular intervals, while the monument to illuminate only one lamp.LED floodlights can create interesting effects in outdoor lighting.

monochrome version provides a bright, uniform illumination of the object.Full color - is indispensable to create original lighting effects, controlled automatically.

These are the main types of street lights, the use of which not only provides a comfortable ride through the dark city, but also gives an individual the surrounding landscape and memorable appearance.