In EMC project general government or manufacturer will be mentioned in the commercial negotiations with the government to the implementation of the test section, then test sections have what request? How we can well implement a qualified application of local authorities and satisfying? We discuss here.

First test section of appropriate choice in the spacing of lamps and lanterns, height, cantilever, elevation and the consistency of the light source is representative of typical sections.

1, spacing

Street lamp spacing as small as possible is preferred, the preferred distance is not more than 40 meters, had better choose in 35 meters away from the road. The gb CJJ45-2006 city road lighting design standard "street lamp spacing reference: sectional type lamps and lanterns light light pole height about 3 times of itself for spacing, choose a perfectly straight road, don't choose to bend or intersection. The installation height of the cantilever length of lamps and lanterns should not be more than a quarter, the elevation of lamps and lanterns should not be more than 15 °;

2, right

Road width to four lanes (15 meters) to be beautiful, the road smooth wide.

3, light pole height

Light pole height preferred best 8 to 10 m, second is not more than 12 meters (high lever directly affect the injection Angle, light affect the intensity of illumination evenness), lamps and lanterns of cantilever hole with diameter of 60 mm ￠is preferred.

National road standard reference:

The type of light distribution, arrangement of lamps and lanterns and the installation height of lamps and lanterns, the relationship between spacing

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Note: Weff effective for pavement width (m)

Need to pay attention to in the table above, here is the key. Specification, because the country has a street lamp light distribution in different test sections have different lamps and lanterns light distribution.

Example: a road right 18 meters, green belts among four lanes 2 m, how to determine the path on the light pole and lamps and lanterns light distribution for a test section?

Solution:

(a) as a main roads

1, must have a light type lamps and lanterns

2, according to the road lamp pole distribution as above

(1) bilateral staggered cloth lamp: rod is 12 meters high above, light pole spacing 36 meters or less, to the state and the test section to request.

(2) the bilateral symmetry of cloth lamp: stem more than 9 meters high, 27 meters or less light pole spacing, the state and the test section to ask.

(2) of the road as a road

1, can be used or half light type lamps (such as the sectional type street light light unchanged with the above conditions)

Type 2, if use half light lamps according to the road lamp pole distribution as above

(1) bilateral staggered cloth lamp: 14 meters high, light pole spacing of 50 meters or less, to the state and the test section to request.

(2) the bilateral symmetry of cloth lamp: more than 11 meters high, light pole spacing 39 meters or less, to the state and the test section to request.

Conclusion: if choose this section as the test sections, so it is best to use the LED section Type lamps and lanterns, light with light way is best for the Type Ⅱ Short or Medium (add, you may refer to aspects of light distribution I log in discussion of lamps and lanterns light distribution and light distribution of basic formula is: high lever H present right W, they are the Type of business is equal to 1 choice between I light distribution, less than 1 ~ 0.25 choose Type Ⅱ, less than or equal to 0.25 the following selection Type Ⅲ, and cast light length is to stem from the width of the technology choice.)

(3) the luminaires

Conventional lighting system should be adopted, the layout of the street lamp light pole to both sides is called the best;

Cloth lamp mode selection principle of order:

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Five basic ways to conventional lighting lamps and lanterns to decorate

(a) unilateral arrangement; (b) bilateral staggered arrangement; (c) bilateral symmetrical arrangement; (d) center symmetrical arrangement; (e) lateral suspension cable arrangement

(4), replaced the light source with high pressure sodium lamp is beautiful: light source, the greater the power, the better, with single lamp power above 400 w or the best, second is to choose the 250 w and 150 w

(5), the test section of road on both sides of the mask and the shade scarce for beautiful, not hinder the normal lighting lamps;

(6), choose artery or branch is preferred;

(7), and the choice of external auxiliary light source is less, can reflect the LED street lamp lighting effect.

(eight), without any energy saving device, voltage is relatively stable;

(9), the number of cars, traffic was less as far as possible, and good condition

Summary, with the government departments do street light energy-saving renovation project, the first thing to energy-saving benefit is a top priority for energy-using units, strictly enforce national standards. Second must reduce energy conservation service company's investment risk, recover the investment as soon as possible. All the lamps and lanterns of the substitution principle must be based on these two points on the basis of.