SPECIFICATION OF LIFT for Buye

This is for Bangladesh Contractor should follow 

SPECIFICATION OF LIFT

1. Supply of passenger/ Bed/Service lift/Observation lift complete with car, control panels, driving motor, gear box/gearless, steel suspension ropes, safety devices, guide rails, push buttons, architraves (as required) with other necessary accessories etc. complete including counter weight made of cast iron as required, suitable for installation & use in tropicalised country like Bangladesh & as per detailed specification and standard as mentioned in attached “Detailed Specification of Lift”

Country of Origin   :

Manufacturer:                                                                                                                                             

Brand:

Model:

Detailed Specification of Lift

General

I.	Type	:	Geared/ Gearless type passenger/ bed/ Observation /Service lift
II.	Capacity	:	.............................. Kg. (.................Passenger)
III.	No. of stops	:	................................... Stops
IV.	Travelling speed	:	..................................Meters per second.
V.	Car travel height	:	................................ Meters (Approximate)
VI.	Floor Designations	:	................................
VII.	Power rating	:	Compatible with the capacity of the lift as mentioned  above with 180 starts per hour minimum.
VIII.	Number of entrances	:	.........................Nos. arranged in the same line.
IX.	Shaft size	:	Width ............... mm, Depth...............mm,
X.	a) Pit depth b) Overhead Height	: :	..........................  mm. ..........................  mm.
XI.	Machine room location	:	Directly above hoist way/MRL(Machine Room Less)
XII.	Power source	:	400 Volt. (+10%), 3-Phase, 50Hz.
XIII.	Light mains	:	230 Volt. (+10%), single-phase 50Hz.
XIV.	Signal source	:	24 volt. D.C or as designed.
XV.	Operation System	:	Simplex/Duplex/Triplex/Quarduplex /Suitable group.
XVI.	Control system	:	Collective selective with fully programmable microprocessor control, designed for optimum, efficient & energy saving elevator operation. All controls shall always be equipped with an alarm device in machine room, control room and other suitable places as per direction of the Engineer-in-charge. Variation in speed of the lift between no load & full load conditions shall not be more than +10%. The control system shall be capable of correcting any tendency to over speed or under speed, shall have safety devices to stop the car if its running speed exceeds its rated speed by 10%. The car stopping & leveling system shall be unaffected by external influence like variation in load, temperature and rope elongation etc. The drive control system with Thyristor/ IGBTs (Integrated Gate Bipolar Transistors) controls acceleration & deceleration getting feedback from encoder and shows information & data in LCD/LED display. Drive control with digital meter, test certificate of the control system should be furnished.
XVII.	Additional controls & accessories	:	-Over load control with indication lamp &               buzzer/indication & buzzer. - Full load control with indication - Attendant control. -Fire man’s control switch. - 3-way inter-communication system between the car, machine room & other suitable place. - Door close / open button in the car. - Sensor switch in the car for light & fan. - Line flow Fan fitted on drop ceiling.
XVIII.	Maintenance control	:	Car stop station with :-                                                       - An initiation switch. - One up & down button. - One stop button.
XIX.	Drive system	:	A.C. Variable Voltage, Variable frequency (AC-VVVF) with the following features:- - 32 bit microprocessor step less controlled, electronically regulated  during acceleration & deceleration with floor approach. -Electromagnet operated holding brake to be applied only after the car comes to a stand still. -The capacity of the VVVF drive shall be minimum 20% higher than   the optimum full load capacity of the driven motor of the lift. -The microprocessor shall be of minimum 32 bit data processing industrial class controller for commercial/residential/hospital/ observation  lifts, with CAN bus serial Communication mode, suitable for 0.63-4.0 m/s elevator speed for synchronous & asynchronous traction motor, having analog/digital and multi speed function,  load weighing compensation function, strong electromagnetic/ electrostatic anti-Interference ability. -The entire control system of the lift shall be designed and manufactured in such a way that appropriately synchronizes the whole system. - Test certificate of the drive system should be furnished.
XX.	Smooth leveling	:	The lift shall be provided with automatic self leveling feature to ensure automatic aligning the car with the floor landing within a tolerance of (+/-) 5mm under normal loading & unloading conditions. Self-leveling will be entirely automatic & independent of the operating device & shall correct the over travel, under travel & rope stretch.
XXI.      CAR	CAR a)     Car dimension	:
	b)  Cabin floor	:	Securely fastened sheet steel sound isolated platform made of fire resistant and weather resistant sound absorbing synthetic materials.
	c)  Car frame & safety                 :                Body Passenger type made of entirely structural sheet steel assembly to safety support the rated load of the cabin & accessories with elastic isolators between metal parts to ensure low vibration & low noise during car travel with natural ventilation arrangement in ceiling & floor.	:	Body Passenger type made of entirely structural sheet steel assembly to safety support the rated load of the cabin & accessories with elastic isolators between metal parts to ensure low vibration & low noise during car travel with natural ventilation arrangement in ceiling & floor.
	d) Car Ceiling	:	Anodized metal framed with decorative stainless steel   luminous ceiling by spot light. Synthetic glass with diffused fluorescent lighting/any other options selected by the Engineer in charge & two concealed fan fitted on drop ceiling for forced ventilation.
	e)Hall & Car button	:	Metallic structures call button panel with indication system on each landing, digital car position indicators, arrival gong & direction indicators/arrows to be installed above or at the side of the landing doors at all landing & inside the car. Car Operating  panel/board to be installed inside the car. Manual call cancellation system should be incorporated inside lift car OPB. The center line of the hall call buttons shall be at a nominal height of 01 meter above the floor.
	f) Other cabin features	:	- 3 (Three) hand rails of smooth stainless steel of minimum 100 mm. width & 12 mm thickness or 30 mm dia round shape. - Ceiling mounted emergency light in the cabin, which will light during 30 minutes of power failure and charged by trickle charger battery during power failure. - Mirror on full rear wall of car from top to hand rail. - Inter-com and alarm button system among car, machine room and lobby/suitable place - Audible overload protective device. - Emergency stops and call button provided on car operating panel board. - Full height Photocell shall be provided. - Re-tractable both safety shoes for the full height of the door which reopens the door when it is obstructed by any object while closing. -Ventilation by motor driven fan built in ceiling panel. -Emergency exit with safety contact in car roof, the trap door can be opened from inside and outside the car. -Non contact electronic door safety sensor with full height photocell. -A door reversal feature in case of obstruction of door
	XXII) Architrave / transom	:	Stainless Sheet steel mirror/hairline finish architrave covering the door entrances sides and top up to the door ceiling for Gr. floor & Narrow architrave Mirror/Hairline finish for typical floor. Stainless steel mirror/Hairline finish Transom Panel shall be provided at Gr. Floor.
	XXIII)  Door
	Doorsills	:	Doorsills shall be extruded aluminum with anti-slip grooving with guiding slots.
	Door operation	:	High-speed heavy-duty door operator with adjustable speed for opening and closing. Door will be driven by quiet. A.C. motor connected to a door operation system. Car and landing doors will open and close in full synchronization being connected to each other. The landing doors will have Electro-mechanical locks. Each landing door will be provided with positive interlock operated by a coupling on the car door and shall prevent the movement of the car away from the landing unless both doors are closed and locked. The interlocks will be designed to prevent opening of the door except at the landing, at which the car is stopping or has stopped.
	Door Opening            XXIV) Safety features	:	:Minimum ---------mm(W)x 2100 mm(H) for ---kg lift.               Non contact electronic full height door safety sensor, power supply, phase reversal protection, friction clutch to avoid passengers to be trapped between doors. -Emergency unlocking of door from landing for evacuation as well as for maintenance with a special key. -Facilities for opening of door from inside the car within the landing during power failure - During power failure, Manual opening of doors from inside the car is possible within landing zone. - A friction clutch to avoid passengers to be trapped between door. - A door reversible feature in case of obstruction of door.
	Guide rails	:	Guide rails shall be continuous throughout the entire length right from the bottom of the pit floor to the top most floor served, plus additional length as may be required for smooth operation or equivalent fixing devices shall be provided which are of such design & spacing that rails shall not deflect more than 4mm under normal condition. The relevant fixing devices such as brackets, clamps etc shall be of   such design & spacing that rails shall not deflect more than 4mm under normal working condition.
	i.Suspension rope	:	-  Main rope shall be of bright steel wires minimum 10mm dia with fiber/ham cores having a safety factor at least 14. - The rope suspension is to be constructed to shut the lift down if one or more suspension ropes become slack. -  The over Speed Governor rope shall be of bright steel wires minimum  8mm dia having a safety factor at least 8.
	Speed governor & safety gear	:	-Gradual type safety gear actuated by the speed governor to be installed in the machine room above the hoist way/inside the head room in order to stop the car quickly & safely in case of exceeding 25% of designed speed during down/up both wards travel for any reasons (i.e. breakage of all suspension elements). -Suitable means will be supplied to cut off power from the motor and apply brake on application of the safety.
	Counter weight condition	:	Car and counter weight guide rails shall be made as per International Standard and shall have working surface machined & smooth.
	i.     Buffer	:	Energy absorbing oil buffer for speed more than 1m/sec, oil/spring buffer for speed less than 1m/sec shall be mounted in pit beneath the car & counter weight with suitable concrete foundation.
	ii.     Pre & Final limit switch	:	To disconnect the controller from electric power supply if the car over travels higher at the top or lower at the bottom terminal landing.
	iii.     Traveling cable, wiring	:	Traveling cables having conductors adequate in size & number. - All electrical cables shall be fire retardant and shall go through PVC conduits in machine room & shaft. The circuit, wiring cable of the motor shall not run through any pipe used in connection with the wiring  for the control and safety devices.
XXV)	Painting	:	All exposed ferrous metal parts of machine, car, doors and other materials in the hoistway including guide rail fixation brackets (except guide rails) will have one coat of factory rust protecting paint.
XXVI)	Compensation equipment	:	For reducing the motor output and improving stopping accuracy and running characteristics the weight of the suspension ropes shall be compensating to account for individual conditions. The required compensating chains or ropes shall be attached to the car and the counter weight.
XXVII)	Operation and Maintenance	:	4 (Four) sets of detail operation  & maintenance manuals , catalogues, spare parts catalogues with part number, control wiring diagrams and soft copy etc. shall be included to the supply of lift & the language shall be in English.
XXVIII)	Standard/conformity	:	At least the safety components, such as,  progressive safety gear, locking devices, buffers, over speed governor, car over travel protection system (pre and final limit switches) of the proposed lift shall be in conformity with BS EN-81/EN-81(Lift Directive 95/16/EC)/DIN/ VDE/ ANSI/ASME A17.1/ JIS standards &safety codes. Installation, testing and Commissioning of the lift shall also be in conformity with the above standards & codes. Certificates issued by internationally recognized authorities like TUV/DNV for the product(s) of the manufacturer(s) as per above relevant valid regulations, safety and standard shall have to be submitted by the bidder. The certificates shall have to be authenticated by the Chamber of Commerce/Ministry of Commerce/ Foreign Ministry of the manufacturing Country.

For Passenger & Service Lift/ Stretcher/bed Lift 

Car type:                Entirely Stainless steel made.

Car body and roof              : The car body shall be of sufficient mechanical strength to resist accidental impact. The roof shall be capable of supporting two persons or minimum load of 150 kg. The platform shall be made of sheet steel. The enclosure height shall be 2200mm minimum below suspended ceiling.

Cabin walls          : Shall be 1.5 mm thick stainless steel sheet walls with stainless steel etching hairline/hairline finish in sections having in front, rear & side walls as per manufacturer’s standard design to be approved by the Consultant Engineer-in-Charge.

Cabin door           : Fully automatic heavy duty centre/side opening horizontal sliding door panel of stainless steel etching hairline/hairline finish to be approved by the Consultant Engineer-in-Charge.

for 3 side view observation Passenger Lift

Car type : Entirely Stainless steel made accept visible 3 sides. Visible 3 sides construction will be bright steel frame with clear tempered glass from hand rail to ceiling.

Car body : The car body shall be of sufficient mechanical strength to resist accidental  impact.

Cabin walls: Shall be 1.5 mm thick stainless steel sheet walls with stainless steel mirror/stainless steel mirror etching finish in sections having in front. Rear & 2 sides visible walls will be bright steel frame with clear tempered glass from hand rail to ceiling as per manufacturer’s standard design to be approved by the Consultant Engineer-in-Charge.

Cabin door : Fully automatic heavy duty centre opening horizontal sliding door panel of stainless steel mirror etching/ stainless steel mirror finish to be approved by the Consultant  Engineer-in-Charge.

2. Installation, testing and commissioning of the above lift including supplying of necessary fixing materials, shaft lighting with wirings, additional works on base foundation (if necessary) for machineries and painting of all parts and initial lubrication shall be carried out as per BS EN-81/    EN-81(Lift Directive 95/16/EC)/DIN/ VDE/ ANSI /ASME A17.1/ JIS .The supplier / Installer shall carry out 16 hours per day trial run operation  for 30 (thirty) days before handing over the lift to the competent authority.

All electrical and civil works mending good the damages in connection with installation of the lift shall be carried out in accordance with the provision of the Bangladesh National Building code, latest Bangladesh Electricity Rules, Regulations & PWD specification. All non-current carrying metallic enclosure of electrical materials/equipment viz. electric motor frames, control panel, other metallic cases, door, call and control button, car switch, limit switch, junction boxes & similar electric fittings shall be properly connected to the earthing system. All the works in this regard shall conform to general standards, Codes and specifications of PWD.

TERMS AND CONDITIONS OF LIFT & ESCALATOR

1. The bidder shall submit the technical proposal  with sealed & signed by manufacturing company and main catalogue (marked) including mentioning brand, model & country of origin of the proposed lift.

2.   The bidder shall submit a certificate by manufacturing company stated that minimum 1000 Nos. of the proposed lift have been used in minimum 10 (ten) countries of the world including the manufacturing country for equal to or more than ten years. The certificate must be authenticated by Chamber of Commerce/ Ministry of Commerce/ Ministry of Foreign Affairs of the lift manufacturing company.

3. The bidder shall submit a certificate stated that minimum 20 Nos. of lift with proposed brand and proposed country of origin have been used successfully in Bangladesh. A certificate in prescribed   form must be attested by the concerned   Executive Engineer of PWD which stated that minimum 15 of those 20 lifts have installed and have been  running  successfully in Bangladesh.

4. (a) If a Sole  agent of any renowned lift manufacturing company which may be able to manufacture lift of 4m/sec or above,  has been marketing minimum 1000 lifts on an average  per annum can participate in a contract by proposing that renowned brand lift. (in this case condition 3 is not applicable)

4. (b) Under the condition of 4(a), that sole agent/representative of that renowned standard lift must submit the entire declaration by the manufacturing company. That  declaration shall be authenticated by Chamber of Commerce/ Ministry of Commerce/ Ministry of Foreign Affairs of the lift manufacturing company and shall be enclosed with the contract.

5. The proposed lift manufacturing company shall have their own testing tower and R&D(Research and development) wing/centre.

6. Each bidder must be the sole agent/representative of the proposed lift of the contract and he/she must submit its all supporting documents.

7. The bidder shall have one year's experience of maintenance of minimum 20 nos of lift and a detailed list of that experience shall be certified in a prescribed form and attested by the concerned Executive Engineer of PWD .

8. The bidder shall have A, B, C class contractor license provided by the electric licensing board. After completion of the work, the bidder and the manufacturing company shall give the certification about installation, testing and commissioning of the lift.

9. The bidder shall give the assurance from the manufacturing company to supply of spare parts for minimum 20 years and this assurance must be  authenticated by the Chamber of Commerce/ Ministry of Commerce/ Ministry of foreign affairs of the concerned manufacturing company.

10. The main parts of the proposed lift such as motor, gear box/gearless, controller, cabin, door and door drive system must follow the actual drawing, design of the lift manufacturing country and the logo/name of the manufacturing country must be embedded with the body of the proposed lift. A certificate must be submitted which stated that the other parts of the proposed lift are made of/made by/supplied by the lift manufacturing company. Without importing from the lift manufacturing company ,use of any other parts/components is not permissible .

11. The block diagram of the complete lift system including all control system with ACVVVF, power components must be submitted with the contract.

12. The successful bidder must submit the detail packing list with sealed and signed by the lift manufacturing company to the concerned Executive Engineer minimum 15 days before shipment of the lift equipments.  That packing list must comply the items described in the work order and the manufacturing company must certify that all parts/items are supplied in the packing list.

13. Before shipment the performance test of safety devices of lift/escalator and Quality assurance tests of the products as per standards shall have to be carried out by the manufacturer in presence of  nominated engineers of PWD at the factory premises. One engineer will be nominated for one lift. For two lifts in a single tender minimum one engineer will accomplish this inspection and testing. For more than two lifts in a single tender, the number of nominated engineers will be increased by one per two lifts. All cost related to engineers' travel, food, accommodation, etc. will be borne by awarded organization/Manufacturer. The expenditure for this will be incorporated by the bidder at the time of participation. For special reasons if inspection is not performed by the engineers of the PWD, taking prior approval of the procuring entity  quality assurance tests will be carried out by Internationally accepted inspection agencies(home and abroad).

14. Lift equipment shall  be listed packet wise in detail while importing the lift under the work order. The name of the project and LC no. shall be marked clearly in the packets. Equipment of one contract cannot be packetized together with other equipment/ other contracts.

15. After released from the port, the imported equipment shall  be reached to the site according to the condition of the contract.

16. The bidder shall submit the detail address of the factory, telephone no., website address, e-mail address and company profile of the lift manufacturing company.

17. The bidder shall certify that all given certificates/ documents/ drawings are complete and correct. If any error is found, the contract will be cancelled and the bidder will be disqualified from future participation of any contract. 

Sour e : PWD Schedule 2014