Submersible Sump Pumps 83-TMSS-01, Rev 0
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(2) TRANSMISSION MATERIALS STANDARD SPECIFICATION. 83-TMSS-01, Rev. 0. TABLE OF CONTENTS 1.0. SCOPE. 2.0. CROSS-REFERENCES. 3.0. APPLICABLE CODES AND STANDARDS. 4.0. MATERIALS AND MANUFACTURE. 5.0. BASIC DESIGN REQUIREMENTS 5.1 5.2 5.3. Pumps Motors Control System. 6.0. TESTING. 7.0. PRODUCT MARKING 7.1 7.2 7.3. 8.0. Nameplate Directional Arrow Instruction Manual. DATA SCHEDULE. 83TMSS01R0/AJJ. Date of Approval: October 10, 2007. PAGE NO. 2 OF 12.
(3) TRANSMISSION MATERIALS STANDARD SPECIFICATION. 1.0. 83-TMSS-01, Rev. 0. SCOPE This Material Standard Specification (TMSS) specifies the minimum technical requirements for design, engineering, manufacturing, testing and performance of Submersible Sump Pumps intended to be used in the system of Saudi Electricity Company (SEC), Saudi Arabia.. 2.0. CROSS-REFERENCES This Material Standard Specification shall be read in conjunction with the latest revision of SEC General Specification No. 01-TMSS-01, titled “General Requirement for All Equipment/Materials”, which shall be considered as an integral part of this TMSS. This TMSS shall also be read in conjunction with SEC Purchase Order or Contract Schedules for the project, as applicable.. 3.0. APPLICABLE CODES AND STANDARDS The latest revision/amendments of the following Codes and Standards shall be applicable for the equipment/material covered in this TMSS. In case of conflict, the vendor/manufacturer may propose equipment/material conforming to one group of Industry Codes and Standards quoted hereunder without jeopardizing the requirements of this TMSS. 3.1. IEC 60034-1 Rotating Electrical Machines - Part 1, Rating and Performance. 3.2. ISO 5198. 3.3. NEMA MG1 Motors and Generators. 3.4. TES-P119.19 - Building and Yard. 83TMSS01R0/AJJ. Centrifugal, Mixed Flow and Axial Pumps - Code for Hydrolic Performance Test. Date of Approval: October 10, 2007. PAGE NO. 3 OF 12.
(4) TRANSMISSION MATERIALS STANDARD SPECIFICATION. 4.0. 83-TMSS-01, Rev. 0. MATERIALS AND MANUFACTURE Table 1: Materials Types of Submirsible Pump Components Unit Components. Dewatering. System Application Drainage. Sewage (1 ). Pump/Motor Housing Impeller. Bronze. Bronze. Bronze. Bronze, shrouded or open multi-vane channel impellers with adjustable diffuser and strainer. Bronze, vortex impellers in a volute; non-clogging design.. Bronze, multi-vane, open or semi-open shrouded impellers; non-overloading design.. Shaft. Stainless Steel. Stainless Steel. Stainless Steel. Fasteners. Stainless Steel. Stainless Steel. Stainless Steel. Mechanical Shaft Seals. Manufacturer's Standard. Manufacturer's Standard. Manufacturer's Standard. Strainer. Stainless Steel Steel, primed or galvanized. Steel, primed or galvanized. Steel, primed or galvanized. Lifting Handle/Eye Bolts. NOTES: 1.. For sewage application, submersible pump shall have an effective grinder cutter assembly with components of chromium alloy and stainless steel.. 2.. Whenever chemically contaminanted fluid is handled, all materials shall be of stainless steel, superceding the above table.. 83TMSS01R0/AJJ. Date of Approval: October 10, 2007. PAGE NO. 4 OF 12.
(5) TRANSMISSION MATERIALS STANDARD SPECIFICATION. 5.0. 83-TMSS-01, Rev. 0. BASIC DESIGN REQUIREMENTS 5.1. PUMPS 5.1.1 General a.. The pump section including seals shall be designed for a working pressure of up to 0.80 MPa.. b.. The guaranteed pump performance curve, as quoted, shall be continuously rising to shut-off. The percentage head rise from rated head to shut-off shall be as follows: i. ii.. c.. d.. e.. For single operating pumps, a minimum of 10% For pumps operating in parallel, a minimum of 15%. If while handling the specified liquid at the conditions stated on the Pump Data Schedule, the pump fails to meet the specified performance on the site, the Vendor/Bidder shall be responsible for performing any corrective action required. Design modifications to the pump bowls or internal components which may affect the hydraulic or mechanical performance are not permitted after order placement unless approved by SEC . Pump shall be capable of running dry without damage to any component.. 5.1.2 Casing a.. The thickness of all cast bowls shall be suitable for the maximum discharge pressure plus allowances for head increases at pumping temperature and hydrostatic test pressure at ambient temperature with a 3.2 mm minimum corrosion allowance.. b.. Casings shall have flanged joints. If threaded bowls are used, sealing shall be achieved by means of “O-rings” in the partition grooves.. 5.1.3 Rotating Elements a.. 83TMSS01R0/AJJ. Shafts shall be machined and properly finished over their entire length so that there is no more than 40 micrometers (0.0015 in.) total indicated runout per meter of shaft length.. Date of Approval: October 10, 2007. PAGE NO. 5 OF 12.
(6) TRANSMISSION MATERIALS STANDARD SPECIFICATION. b.. 83-TMSS-01, Rev. 0. Underfiling, overfiling or trimming, other than design standard, of impeller vanes to meet rated performance is not permitted unless approved in advance by SEC. If approved, the Vendor/Bidder shall submit a drawing showing details of the impeller outlet modifications. This drawing shall also be included in the Operation and Maintenance (O&M) Manual.. 5.1.4 Wear Rings a.. The pump housing bottom and the impeller shall be equipped with easily replaceable wear rings.. b.. Wear rings shall be held in places by means of a press fit with locking pins or threaded dowels (axial or radial) or by flanged and screwed methods. Tack welding is not acceptable.. 5.1.5 Running Clearances When establishing running clearances between wear rings or between other rotating and stationary parts, consideration shall be given to pumping temperature, suction conditions, the characteristics of the pumped liquid, the expansion and galling characteristics of the materials and the hydraulic efficiency. Clearances shall be sufficient to ensure dependability of operation and freedom from seizure under all operating conditions. 5.1.6 Dynamics Rotating elements shall be dynamically balanced. 5.2. Motors 5.2.1 General. 83TMSS01R0/AJJ. a.. The motors shall be totally enclosed and immersible oil-filled lubricated type suitable for intermittent or continuous operation.. b.. The motors shall be equipped with built-in automatic-reset thermal overheating protection.. c.. The stator winding insulation for oil-filled motors shall have at least equivalent to Class F with temperature rise limited to class B insulation. Three (3) phase motors shall be NEMA B design and NEMA L design for single (1) phase motors.. Date of Approval: October 10, 2007. PAGE NO. 6 OF 12.
(7) TRANSMISSION MATERIALS STANDARD SPECIFICATION. 83-TMSS-01, Rev. 0. d.. The motors shall be designed to supply its rated outputs at ±5% variation of the rated frequency and voltage. Without overheating the motor, ±10% variation of the rated voltage should be accepted provided the motor does not run continuously at full load.. e.. The motors shall be designed to operate with a voltage imbalance of up to ±2% between the phases.. f.. The motors shall be provided with oil and water resistant power cable of adequate length as required.. g.. The motors shall have a minimum service factor of 1.20.. h.. The motor enclosure shall be IP 68 or equivalent.. 5.2.2 Rotors a.. Rotors shall be machined and properly finished over their entire length. The total indicated runout of the bearing journal areas and the area under the coupling hub shall not exceed 25 micrometers (0.001 in.). All other areas shall not exceed 50 micrometers (0.002 in.) total indicated runout.. b.. Rotors shall be dynamically balanced.. 5.2.3 Bearings The bearings shall be permanently lubricated by the dielectric oil and shall be designed for at least 20,000 hours of continuous operation. Bearings shall be positioned as follows: a.. Upper Bearing: Shall be a roller or single-row ball bearing designed to counteract radial forces.. b.. Lower Bearing: Shall be a double angular-contact ball bearing built to take both radial and axial forces.. 5.2.4 Shaft Sealing Submersible motors shall be provided with double mechanical seals operating independently from each other and seal off the motor from the pump housing. Lip seals are not permitted as a primary means of sealing.. 83TMSS01R0/AJJ. Date of Approval: October 10, 2007. PAGE NO. 7 OF 12.
(8) TRANSMISSION MATERIALS STANDARD SPECIFICATION. 83-TMSS-01, Rev. 0. 5.2.5 Power Cable Severe heavy duty rated, oil and water resistant with leak-proof cable gland. 5.3. Control System (for permanently-installed pumps only) 5.3.1 General a.. For interior installation, the control system shall be designed for float controlled pumping consisting of a control panel of NEMA 1 enclosure having contactor unit with overload relay, a selector switch (Hand-OffAutomatic) and push button for reset of overload relay. For outdoor installation, control panel shall be constructed of NEMA 4 enclosure and shall be designed for all-weather protection i.e. dust and water-proof while indoor type control panel shall be dust and splashproof, constructed of corrosion and abrasion resistant metal.. 83TMSS01R0/AJJ. b.. The control system shall also be designed to provide high water alarm indication (flashing light and horn), alarm test and silence buttons, pilot lamps and control power on/off switch.. c.. The entire control system shall be designed, assembled and tested meeting UL or IEC regulation or any internationally recognized standards.. d.. Wiring diagram shall be provided and shall be securely attached on the reverse side of the panel door.. Date of Approval: October 10, 2007. PAGE NO. 8 OF 12.
(9) TRANSMISSION MATERIALS STANDARD SPECIFICATION. 6.0. 83-TMSS-01, Rev. 0. TESTING 6.1. Oil-filled motors shall be tested in compliance with IEC 60034-1 or any other internationally recognized standards.. 6.2. Each motor shall be given a routine test to demonstrate that it is free from mechanical and electrical defects. This test shall include the following: 6.2.1 A high potential test on the stator. 6.2.2 An insulation resistance test. 6.2.3 Measurement of the winding resistance. 6.2.4 Measurement of the no-load current (each phase). 6.2.5 Measurement of nominal no-load speed. 6.2.6 A determination of the locked rotor current.. 6.3. Curves showing motor efficiency and power factor at 100%, 75% and 50% of full load shall be provided. The Vendor shall indicate which test code method will be used in the determination of this performance data.. 6.4. A polarization index text test shall be conducted. The polarization index shall not be less than 3.0.. 6.5. Pump bowl assemblies shall be hydrostatically tested, using water at ambient temperature, to a pressure of 1.5 times the maximum allowable assembly pressure.. 6.6. All pumps performance tests shall be in accordance with ISO 5198, Class C; smaller units being subjected to Annex B criteria.. 6.7. Tests measurements shall be taken at shut-off to determine impeller size, minimum continuous stable capacity, mid-way between minimum continuous stable capacity and rated capacity, rated capacity and 120% of rated capacity.. 6.8. On completion of performance testing, the pumpset shall be set at its rated point and run for a continuous period of not less than one hour. Test measurements shall be taken at fifteen (15) minutes intervals during this period.. 83TMSS01R0/AJJ. Date of Approval: October 10, 2007. PAGE NO. 9 OF 12.
(10) TRANSMISSION MATERIALS STANDARD SPECIFICATION. 7.0. 83-TMSS-01, Rev. 0. PRODUCT MARKING 7.1. Nameplates Pumps and motors manufactured in accordance with this standard shall be identified (either in English or Arabic) by a nameplate, made of corrosion-resistant metal indicating the following information: 7.1.1 7.1.2 7.1.3 7.1.4 7.1.5 7.1.6 7.1.7 7.1.8 7.1.9 7.1.10 7.1.11 7.1.12 7.1.13 7.1.14 7.1.15 7.1.16. 7.2. Pump Make/Model No. Pump Type and Serial Number Impeller Size, mm. Motor Make/Model No. Motor Rating: Watts or kW Service Factor Rated Power Supply: Voltage/Phase/Hz. Full Load Amperage, Amps. Class of Insulation Design NEMA B (3-Phase), L (1-Phase) Power Factor/Efficiency Rated Speed: RPM Unit Weight (excluding power cable), kgs. Country of Origin Inspection Code/Date 83-TMSS-01 Rev.. Directional Arrow A directional arrow shall be marked on each pump housing to indicate pump rotation.. 7.3. Instruction Manual A fully illustrated Instruction Manual in English and Arabic shall be delivered with each submersible sump pumps and motors, including the following information: 7.3.1 The information mentioned in item 7.1 above. 7.3.2 A simplified description of the method of installation and O & M procedures.. 83TMSS01R0/AJJ. Date of Approval: October 10, 2007. PAGE NO. 10 OF 12.
(11) 83-TMSS-01, Rev. 0. TRANSMISSION MATERIALS STANDARD SPECIFICATION. 8.0. DATA SCHEDULE. SUBMERSIBLE SUMP PUMPS SEC Enquiry No.. Date:. SEC Purchase Order No. or Contract No.. Date:. SEC PTS No./Project Title with J.O. No. REFERENCE SECTION NO.. DESCRIPTION. 3.0. APPLICABLE CODES AND STANDARDS. 5.0. DESIGN REQUIREMENTS. 'A'. 'B'. 'C'. __________ __________ __________ __________ __________ *. __________ __________ __________ __________ __________ __________ __________ __________ __________ __________ __________ __________ __________ __________ __________ __________. __________ __________ __________ __________ __________ __________ __________ __________ __________ __________ __________ __________ __________ __________ __________ __________. __________. __________. __________. *. Application Pump Type Rated Capacity, (lps) Total Dynamic Head, (m) Pump Efficiency, % Motor Type Motor Starting Current (A) Motor Rating, (kW) Rated Power Supply,(V/Ph/Hz.) Rated Speed, (rpm) Class of Insulation. 6.0. __________ __________ __________ __________ * __________ __________ __________ F. Operation Pumped Liquid Specific Gravity Liquid Temperature, (°C) Pump Discharge Size, (mm.) Type of enclosure for control panel TESTING Compliance with Standard. 'A'- SEC SPECIFIED DATA/PARAMETER. 'B'- BIDDER/SUPPLIER/VENDOR/CONTRACTOR PROPOSED DATA/PARAMETERS. 'C'- REMARKS SUPPORTING THE PROPOSED DEVIATION IN COLUMN 'B'. (*)- DATA/PARAMETER TO BE PROVIDED/PROPOSED BY THE BIDDER/SUPPLIER/ VENDOR/CONTRACTOR IN COLUMN 'B'. 83TMSS01R0/AJJ. Date of Approval: October 10, 2007. PAGE NO. 11 OF 12.
(12) 83-TMSS-01, Rev. 0. TRANSMISSION MATERIALS STANDARD SPECIFICATION. 8.0. DATA SCHEDULE. SUBMERSIBLE SUMP PUMPS A.. ADDITIONAL TECHNICAL INFORMATION OR FEATURES TO BE FURNISHED BY SEC:. B.. ADDITIONAL SUPPLEMENTARY DATA BIDDER/VENDOR/SUPPLIER/CONTRACTOR:. C.. OTHER PARTICULARS TO BE FILLED UP BY BIDDER/VENDOR/SUPPLIER/ CONTRACTOR:. OR. Actual Manufacturer of Equipment/Material. FEATURES. PROPOSED. BY. Vendor/Supplier/ Contractor. Name of the Company Location and address. Name and Signature of authorized Representative and date. Official Seal/Stamp of the Company & Date. 83TMSS01R0/AJJ. Date of Approval: October 10, 2007. PAGE NO. 12 OF 12.
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