With referecne to KASUT request to incorporate LED lights into the KAM road design, the folowing points are to be considered

1. The approved lighting type for KAM access road is 250 watts High Pressure Sodium type and not LED type. Refer to approved project proposal drawing number KA-714490 sht 001. 

2. The use of High Pressure Sodium and Metal Halide type of fixtures are the only Saudi Aramco approved fixtures for street lighting/ outdoor lighting re Saudi Aramco Standard SAES P-123 issued Oct. 19, 2008 and modified version issued Feb. 28, 2010 para. 4.2.4. according to the cutoff dates for the standards applicable to the contract.

2. Technically, changes with the fixture type from HPS to LED has significant impact on the electrical loads. SAES P-123 table 4 requires a minimum of 10 lux for the roadways. With a 30 meter spacing of the lighting pole to meet the existing lighting arrangment, a lighting fixture needs at least a minimum of 23,000 lumens to meet the illumination requirements which can not be found. To use the available lighting LED fixtures in the market, we need to increase the number of poles and decrease the spacing pattern. Additional switchracks, fixtures, and LV cables are required. This change at this stage of the project shall require a complete redesign of the electrical sytstem, cause delays in delivery of KAM road and incite enormous cost over-runs.



