Siemens AG, Transportation Systems (TS) Technical Data is one of the very few providers of solu- tions to the rail transport industry. After Train configuration MC+T+MC the successful implementation of the Wheel arrangement Bo'Bo'+2'2'+Bo'Bo' BTS Skytrain System, a turnkey system Carbody material Stainless steel for ‘s fi rst subway (M.R.T. Chaloem 1,435 mm Ratchamongkhon Line / ) was planned by the Metropolitan Length over couplers 65,100 mm Authority‘s (MRTA) concessionaire, Width of car 3,120 mm Bangkok Public Company Limited Floor height above top of rail 1,160 mm (BMCL). Wheel diameter new / worn 850 / 775 mm In February, 2002, the turnkey contract, Tare weight / total weight (8 p/m2) 107 t / 175 t including the supply of 19 three-car units Max. axle load 15.4 t was awarded to Siemens‘ Transportation Number of seats 126 Systems Group. The total scope of delivery Train capacity 8 pers./m2 1,139 comprised the rolling stock, signaling system, track electrifi cation, platform Passenger doors per car 2 x 4 screen doors, ticketing system and depot Min. curve radius, service line 190 m equipment and also included the com- Max. gradient 5 % plete maintenance for these systems. Max. speed (operational) 80 km/h Max. starting acceleration 1.3 m/s2 Mean deceleration service brake 0.9 m/s2 Power supply 750 V DC /

Metro System – Bangkok MRTA, 19 Three-Car Units

Transportation Systems A-car B-car

21280 740 20760 2837.5 5375 5375 5375 2317.5

Ø 850 150 2300 3650 14800 3350 3350 14800 21800 over coupler face 21500 over coupler face

65100 1400 2800 3120 3000

90 90 18000 920 19340 21190 20580

Both ends of the three-car unit are Project Data equipped with automatic couplers. Two Customer Bangkok Metro Public Company Limited (BMCL) units can be coupled mechanically, pneu- Line M.R.T. Chaloem Ratchamongkhon Line / Blue Line matically as well as electrically for recovery Order 1st order purpose. In view of the prevailing high temperatures Time period February 2002–July 2004 and humidity levels, each car is equipped Number of units 57 cars / 19 three-car units with two powerful roof-mounted compact Scope of supply rolling stock, signaling system, track electrification, air-conditioning units. , ticketing system and depot equipment, The electrically powered three-car trains complete maintenance for these systems are supplied via a 750 V DC third rail. Tests extensive train testing was carried out at the Siemens Test Center in Wegberg-Wildenrath, Germany, before delivery Carbody The carbodies are of lightweight stainless Unusual approaches towards General arrangement steel construction. Both car types – the rapid implementation The trains with their modern, attractive driving motor car and the trailer car – Siemens‘ fl exibility in dealing with customer design are capable of carrying a total of utilize the same modular elements for requests was demonstrated when the 1,139 passengers each, with seating for the carbody which has as many identical Thai Government inquired whether the 126 and standing room for 1,013. parts as possible, such as window and contractually stipulated project duration They are designed for metro operation door elements. of only 30 months could be reduced even and based on the Siemens modular concept further. Within the context of an acceler- which enables trains to be optimally ad- The exterior carbody surface is painted ation program, the contractual partners justed to specifi c customer requirements. according to customer‘s specifi cation. agreed to reduce this duration by another The carbodies are designed for crashworthi- two months. Siemens accepted this Each unit consists of three cars: two motor ness up to collision speeds of 25 km/h. challenge and was able to start the fi rst cars (A-car) and one trailer car (C-car). They withstand compressive forces of demonstration runs four months prior to The A-cars carry the traction container, 980 kN without permanent deformation. the opening date. At the Government‘s the brake resistor and electrical equipment Automatic couplers mounted on the A-cars request, the fi rst of the three-car trains boxes under fl oor. Both A-cars are equipped are capable of absorbing energy without was even transported by plane from with driver‘s cabs to enable bidirectional deformation up to collision speeds of Vienna to Bangkok. operation. The C-car carries the auxiliary 10 km/h to avoid damage to the bodyshell inverters, the 110 V NiCd battery including and its structure. From 2002 to 2004, Siemens TS manu- its housing, and the air supply system. factured and supplied all the rolling stock The three cars are mechanically connected Four electrically powered 1400-mm-wide for the Blue Line of Bangkok. Since the by means of semi-permanent couplers. outside sliding doors are arranged on start of revenue service in July 2004, the Wide, open gangways between the A- and each side of the cars and enable passen- system has been operating with very C-cars ensure free movement between gers to board and leave the unit rapidly. high availability also as the result of the cars. The front shell of the driver‘s cab is a FRP extensive train testing at the Siemens Test (fi berglass-reinforced plastic) sandwich Center in Wegberg-Wildenrath, Germany. compound structure and integrates an C-car

3860 Top of fl oor 116 0 Top of rail 750

1435

1400

emergency front door for safe train-to- Technical features / highlights train and train-to-track evacuation. The modern and functional interior and ■ dynamic braking down to standstill exterior design has been developed in (0 km/h) cooperation with Porsche Design. ■ high acceleration performance for fast traveling even with short distances Traction equipment between stops Proven, forced air-cooled Sibac® traction ■ highly precise stopping at platform containers feed the open-circuit air-cooled screen doors traction motors which are installed in the ■ highest availability through numerous motor bogies. Each motor bogie is con- pretests for product optimization Transport of the fi rst three-car train by plane trolled independently by one IGBT VVVF ■ particularly effective high performance (variable voltage variable frequency) air-conditioning system due to prevailing inverter. High effi ciency wheel slip-slide high temperatures and humidity levels protection is provided on each.

The new Sitrac® control allows electrody- namic braking until standstill. This feature provides the advantage of a non-wearing service brake under normal conditions and particularly increases the stopping accuracy at the platform screen doors. Driver’s cab Bogies Proven SF2000 type bogies, already used in several other metro systems are installed. This type of bogie is equipped with disc brakes. Secondary suspension is provided by air springs, conical rubber springs are used for the primary suspension. The traction motors are transversally integrat- ed into the motor bogies.

Interior design Siemens AG Transportation Systems Mass Transit P.O. Box 3240 91050 Erlangen Germany

[email protected] www.siemens.com/transportation/mass-transit

Printed in Germany / TH 325-060505 / 237753 / DB 09061.0 / Dispo 21708 / c4bs 3901 / Order No. A19100-V500-B377-V2-7600 www.siemens.com/transportation InterCity®, ICE International®, ICE®, ICE T®, ICE TD®, and ICE-Sprinter® are registered trademarks of German Rail. The information in this document contains general descriptions of the technical options available, which do not always have to be present in individual cases. The required features should therefore be specifi ed in each individual case at the time of closing the contract.