ANNEX VI U.K. REQUIREMENTS CONCERNING TRICYCLES

6. SPECIFIC FITTING REQUIREMENTS U.K.

6.6. Rear position lamps U.K.

6.6.1. Number: one or two. U.K.

However, for tricycles with a maximum width exceeding 1 300 mm, two rear position lamps are required.

6.6.2. Arrangement drawing: no individual specifications. U.K.

6.6.3. Position U.K.

6.6.3.1. Width: the reference centre must be located within the median longitudinal plane of the vehicle, if there is only one position lamp or, if there are two position lamps, they must be symmetrical to the median longitudinal plane of the vehicle. In the case of vehicles with two rear wheels these must be at least 600 mm apart. This distance must be reduced to 400 mm if the maximum width of the vehicle is less than 1 300 mm. U.K.

6.6.3.2. Height: minimum 250 mm, maximum 1 500 mm above the ground. U.K.

6.6.3.3. Length: at rear of vehicle. U.K.

6.6.4. Geometric visibility U.K.

Horizontal angle: 80° to the left and right if there is a single position lamp; 80° to the outside and 45° to the inside, if there are two position lamps.

Vertical angle: 15° above and below the horizontal.

However, the vertical angle below the horizontal may be reduced to 5° if the lamp is less than 750 mm above the ground.

6.6.5. Alignment: towards the rear. U.K.

6.6.6. May be grouped with any other rear lamp. U.K.

6.6.7. May be combined with the rear registration-plate lamp. U.K.

6.6.8. May be reciprocally incorporated with the stop lamp or non-triangular rear retro-reflector, or with both, or with the rear fog lamp. U.K.

6.6.9. Electrical connections: no individual specifications. U.K.

6.6.10. Circuit-closed telltale: optional. U.K.

Its function may be fulfilled by the device provided, where appropriate, for the front position lamp.

6.6.11. Other requirements: none. U.K.