GB 18409-2013Photometric characteristics of parking lamps for power-driven vehicles (English PDF)

6.1 General

6.1.1 Test darkroom, test parking lamps and equipment shall comply with the

provisions of GB 4599.

6.1.2 It shall determine the apparent surface boundary in the reference axis

direction of parking lamps.

6.1.3 Appropriate shielding should be provided to avoid the effects of stray

light.

6.1.4 Before measurement, the parking lamp shall be fully pre-ignited at the

test voltage, to make its optical properties tend to be stable.

6.1.5 The measurement distance should ensure that the inverse square law

of distance in photometry can be applied.

6.1.6 Observed from the reference center, the angle of the light receiver is

between 10' and 1°.

6.1.7 The angle deviation of each measuring direction should not be more

than 15'.

6.2 Measurements of photometric characteristics, light color and color

characteristics

6.2.1 For parking lamps with non-replaceable light source, it should measure

at 6.75 V, 13.5 V, or 28.0 V.

6.2.2 For parking lamps with a single replaceable filament lamp source, in the

absence of an electronic light source controller, it shall use the appropriate type

of colorless or colored standard bulb to detect under reference luminous flux

specified in GB 15766.1 or ECE R37.

6.2.3 For parking lamps that use electronic light source controller and of which

the controller is used as one part of parking lamp, it shall measure at the input

terminal of parking lamp at the voltage specified by the manufacturer. If the

manufacturer does not specify the voltage, it shall measure at corresponding

load voltage of 6.75 V, 13.5 V, 28.0 V.

6.2.4 For parking lamps that use electronic light source controller and of which

the controller is NOT used as one part of parking lamp, it shall measure at the

input terminal of parking lamp at the voltage specified by the manufacturer.

6.2.5 For parking lamps with multiple replaceable filament lamps, in the

mounted on the same side of the vehicle and/or just two of same forwards

or backwards.

7.1.2 Each sample lamp shall comply with the provisions of 5.1.

7.1.3 When tested in accordance with the provisions of Clause 6, each

sample lamp shall comply with the corresponding provisions of 5.2 and 5.3.

7.2 Production consistency test

7.2.1 For parking lamps with qualified type inspection, it shall extract sample

lamps at random from products of batch production to carry out the production

consistency test. The number of randomly selected sample lamps is two.

7.2.2 The randomly selected sample lamps shall meet the requirements of 5.1.

7.2.3 When the test is carried out in accordance with the provisions of Clause

6, the randomly selected sample lamps shall comply with the provisions of 5.2.

7.2.4 When the test is carried out in accordance with the provisions of Clause

6, the randomly selected sample lamps shall comply with the corresponding

provisions of 5.3. Allowing.

a) the minimum luminous intensity is not less than 80% of the value specified

in 5.3;

b) the maximum luminous intensity not more than 120% of the value

specified in 5.3.

8.1 Since the date of implementation of this Standard, the new application

type test products should comply with this Standard.

8.2 The lamps which have passed the type inspection before the date of

implementation of this Standard shall be given a transitional period of 24

months, if any is not consistent with the provisions of this Standard.

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