Distance-to-height ratio of lamps and lanterns: according to 6.1.2 of "Technical Requirements for application of LED Indoor Lighting GB/T 31831-2015", the maximum allowable distance-to-height ratio and type of light distribution are:

(PS: The illuminated spatial characteristics of a room are characterized by a parameter called room cabin rate (RCR); RCR=5h(l+b)/lb: in the formula, h represents the height of the room space; l represents the length of the room; b represents the width of the room)

LED flat lamp distance-to-height ratio: 6.3.4 of "LED indoor lighting application technical requirements GB/T 31831-2015" , the maximum allowable distance-to-height ratio of LED flat lamps should not be less than 1.1;

Educational buildings: 8.2.11 of "Code for electrical design of education buildings JGJ 310-2013" , to avoid installing lamps in the interference zone, the vertical distance between the classroom lighting fixtures and the desktop should not be less than 1.7m;

Bookstore: 8.4.5 of "Electrical Design Code for Educational Buildings JGJ 310-2013" , precious bookstore lighting should be used to isolate ultraviolet lamps or fittings without ultraviolet light source, the distance between the lamps and books and other flammable materials should be more than 0.5m;

Store building: A.3.5 of "LED indoor lighting application technical requirements GB/T 31831-2015" , window lighting with LED lamps, should be with grille or diffuse type lamps. When using lamps with shade grille and installed in the top of the window, the height from the ground is more than 3m, the lamp shading angle should not be less than 30 °; if the installation height is less than 3m, the lamp shading angle should not be less than 45 °;

Expo building: A.6.4 of "LED indoor lighting application technical requirements GB/T 31831-2015", the general lighting of the exhibition hall with A lamp installation height is more than 8m should use narrow light distribution LED lamps;

Industrial Buildings: "Technical Requirements for LED Indoor Lighting Application GB/T 31831-2015”.

A.7.2, the general color rendering index(CRI) of LED lamps for general lighting should comply with the following provisions:

a) In large spaces where the installation height is greater than 8 m, the CRI should not be lower than 60;

b) When used in places where color discrimination is required, the CRI should not be less than 80;

c) When used for local lighting for color inspection, CRI should not be lower than 90;

A.7.3 The general lighting of finishing or finished product inspection places with installation height not more than 5m should adopt wide light distribution LED lamps.

Outdoor wall lamps: 8.5.1 of "City Road Lighting Project Construction and Acceptance Regulations CJJ 89-2012" , the installation height of the wall lamp should be 3 ~ 4m, the cantilever length of lamp arm should not be more than 0.8m;

Suspension chandelier: 8.5.4 of "City Road Lighting Project Construction and Acceptance Regulations CJJ 89-2012" , the installation height of horizontal or vertical cable chandelier should not be less than 6m;

Embedded street lamp: 8.5.5 of "urban road lighting project construction and acceptance regulations CJJ 89-2012" , embedded street lamps in the elevated roads, bridges and other anti-collision guardrail should be installed at a height of 0.5 ~ 0.6m, the lamp spacing should not be more than 6m and should meet the requirements of illumination (brightness) and uniformity;

Residential street lamps: 5.2.14 of "Urban Road Lighting Design Standard CJJ 45-2015", the installation height of residential pedestrian road lighting lamps should not be less than 3.5m;

Single pick lamps, double pick lamps: 8.3.1 "Regulations for Construction and Acceptance of Urban Road Lighting Engineering CJJ 89-2012", the installation height of single pick lamp, double pick lamp should be more than or equal to 6m, less than 15m; garden lamp should be less than 6m;

Street lamp installation on the pole: 8.4.1 "Regulations for Construction and Acceptance of Urban Road Lighting Engineering CJJ 89-2012", the installation height of street lamp overhanging 1m and below on the pole should be 4m ~ 5m; Overhang 1m above the light frame, installation height should be 6m; The length of the overhang and the height of the installation should be determined according to the design requirements.

Road, square lighting: "Civil Building Electrical Design and Construction Lighting Control and Installation of Lamps 08D800-4" :

A. Road lighting: street lamp installation height should not be less than 4.5m, lamp pole spacing 25~30m, 0.6~1.0m into the road surface, road brightness should not be less than 1cd/㎡, road illumination uniformity (ratio of minimum illumination to maximum illumination) should be 1:10 ~ 1:15;

B. Courtyard lighting: low power lights should be used. The height of the courtyard column lamp should be 0.6~1.2 times the width of the road surface, but it should not be higher than 3.5m, and the spacing is 15~25m. Lawn lamp spacing should be 3.5~10 times of the installation height of the light source;

C. Square lighting: light poles should be arranged along the long direction of the square. When the width of the square is more than 30m, double inverted or multiple columns should be used. The height of the lamp pole should be greater than 0.4 times the width of the square when it is unilateral, and 0.2 times the width of the square when it is bilateral, and the spacing should be 1.6~2.7 times the height of the lamp pole.

D. High pole lighting: axisymmetric light distribution lamps should be used, and the installation height of the lamps should be greater than 1/2 of the half radius of the illuminated range; When the installation height is more than 20m, it is appropriate to choose the electric lifting lamp plate.

Street lamp: 5.1.3 of "Urban Road Lighting Design Standard CJJ 45-2015",, the relationship between the type of light distribution, arrangement and the installation height and spacing of the lamp (PS: W_eff is the effective width of the road surface) :

Night lighting fixtures: 7.0.2 of "Urban Night Lighting Design Code JGJ/T 163-2008", night lighting fixtures in residential areas and pedestrian areas should avoid glare for pedestrians and non-motor vehicles. The glare limit value of the night lighting fixtures shall meet the provisions of Table 7.0.2-3.

L is the maximum average brightness (cd/㎡) between the 85° and 90° direction of the lamp and the downward vertical line; A is the light emitting area (㎡) of all lamps in the direction of 90° with the downward vertical line.

Football stadium: 6.2.2 of "Lighting Design and Testing Standard for Sports Venues JGJ 153-2016", the arrangement of lighting in football stadium shall comply with the following provisions:

When there is no television broadcast:

1) When using the arrangement of light poles on both sides of the field, the lamps should not be arranged within the range of 10° on both sides of the bottom line of the goal center point, the distance between the bottom of the lamp pole and the side line of the field should not be less than 4m, and the Angle between the vertical connection of the lamp to the center line of the field and the plane of the field should not be less than 25°.

2) When the four-corner arrangement of the site is adopted, the Angle between the line from the bottom of the lamp pole to the midpoint of the side line of the site and the side line of the site should not be less than 5°, and the Angle between the line from the bottom of the lamp pole to the midpoint of the bottom line and the bottom line should not be less than 10°, and the Angle between the line from the light shot center to the center of the site and the plane of the site should not be less than 25°.

On television:

1) When using the four-corner arrangement of the site, the Angle between the line from the bottom of the light pole to the middle point of the site side line and the side line of the site should not be less than 5°, and the Angle between the line from the bottom of the light pole to the middle point of the bottom line and the bottom line should not be less than 15°. The height of the lamps should meet the requirement that angle between the line connecting the lowest row of lamps to the center of the site and the site plane should not be less than 25°(Figure 6.2.2-6).

Figure 6.2.2-6  The position of lighting fixtures at the four corners of the football field during television broadcasting

Note: The shaded areas in the figure are allowed installation positions

2) When using mixed arrangement, the position and height of lamps should meet the requirements of both sides arrangement and four corners arrangement.

Tennis court: 6.2.4 of "Lighting Design and Testing Standard JGJ 153-2016", the arrangement of tennis court lamps shall comply with the following provisions:

the installation height of the lamps shall meet the requirements of Figure 6.2.4-2, the height of the lamps in the competition venue shall not be less than 12m, and the height of the lamps  in the training venue shall not be less than 8m.

Figure. 6.2.4-2 Height of tennis court lamps.

A -Distance of the light pole from the center line of the field.

Hockey stadium: 6.2.6 of "Lighting Design and Testing Standard for Sports Venues JGJ 153-2016", the lighting arrangement of hockey stadium shall comply with the following provisions;

1）When using the arrangement of light poles on both sides, the height of the lamps should meet the Angle between the vertical connection from the lamps to the center line of the site and the site plane is not less than 25°;
2）In the case of four-corner arrangement, the position of the lamps should meet the requirements of Figure 6.2.6-2, the lamp poles should be arranged in the shadow range, and the height of the lamps should meet the angle between the line connecting the lamps to the center of the site and the site plane should not be less than 25°.

Figure 6.2.6-2 The placement of lamps in the form of four-corner light poles in the hockey field

Note: The shaded area in the figure is the allowed installation position.

3）When using the arrangement of bridle path on both sides of the site，the height of the lamps should meet the angle between the vertical line from the lamps to the center line of the site and the site plane is not less than 25°.

Baseball stadium: 6.2.7 of “Lighting Design and Testing Standard for Sports Stadiums JGJ 153-2016”, the lighting arrangement of the baseball stadium shall comply with the following provisions:

the height of the lamp pole shall meet the lighting aiming angle of no more than 70°;

Softball field: 6.2.8 of "Lighting Design and Testing Standard for Sports Venues JGJ 153-2016", the lighting arrangement of softball field shall comply with the following provisions:

The height of the lamp pole shall meet the lighting aiming angle of no more than 70°;

Rugby field: 6.2.9 of "Lighting Design and Testing Standard for Sports Venues JGJ 153-2016", the height of the light pole in rugby field should meet the angle between the line from the light center to the center of the field and the plane of the field is not less than 25°;

Golf course: 6.2.11 of "Lighting Design and Testing Standard for Sports Venues JGJ 153-2016", the height of the tee and fairway light pole on the golf course should not be less than 15m, and the height of the green light pole should not be less than 18m;

Lighting of sports buildings: 10.3.12 of "Code for Design of Sports Buildings JGJ31-2003", the minimum installation height and beam projection angle of lighting lamps in sports buildings should comply with the provisions of Table 10.3.12.

Underwater lighting: 10.3.13 of "Code for Design of Sports Buildings JGJ31-2003", The upper mouth of underwater lighting fixtures should be arranged 0.3m~0.5m below the water surface, lamp spacing should be 2.5m ~ 3.0m(shallow pool) and 3.5m ~ 4.0m(deep pool).