Download Submersible Sump Pumps 83-TMSS-01, Rev 0 PDF

TitleSubmersible Sump Pumps 83-TMSS-01, Rev 0
File Size207.6 KB
Total Pages12
Document Text Contents
Page 2

TRANSMISSION MATERIALS STANDARD SPECIFICATION 83-TMSS-01, Rev. 0

PAGE NO. 2 OF 12 83TMSS01R0/AJJ




Date of Approval: October 10, 2007

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 Pumps
5.2 Motors
5.3 Control System


6.0 TESTING


7.0 PRODUCT MARKING

7.1 Nameplate
7.2 Directional Arrow
7.3 Instruction Manual


8.0 DATA SCHEDULE

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TRANSMISSION MATERIALS STANDARD SPECIFICATION 83-TMSS-01, Rev. 0

PAGE NO. 6 OF 12 83TMSS01R0/AJJ




Date of Approval: October 10, 2007


b. 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

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.

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TRANSMISSION MATERIALS STANDARD SPECIFICATION 83-TMSS-01, Rev. 0

PAGE NO. 7 OF 12 83TMSS01R0/AJJ




Date of Approval: October 10, 2007


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.

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TRANSMISSION MATERIALS STANDARD SPECIFICATION 83-TMSS-01, Rev. 0

PAGE NO. 11 OF 12 83TMSS01R0/AJJ




Date of Approval: October 10, 2007

8.0 DATA SCHEDULE


SUBMERSIBLE SUMP PUMPS


SEC Enquiry No. Date:

SEC Purchase Order No. Date:
or Contract No.

SEC PTS No./Project Title with J.O. No.

REFERENCE
SECTION NO. DESCRIPTION 'A' 'B' 'C'

3.0 APPLICABLE CODES AND

STANDARDS *


5.0 DESIGN REQUIREMENTS

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 F __________ __________
Operation __________ __________ __________
Pumped Liquid __________ __________ __________
Specific Gravity __________ __________ __________
Liquid Temperature, (°C) __________ __________ __________
Pump Discharge Size, (mm.) __________ __________ __________
Type of enclosure for control panel * __________ __________
6.0 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'.

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TRANSMISSION MATERIALS STANDARD SPECIFICATION 83-TMSS-01, Rev. 0

PAGE NO. 12 OF 12 83TMSS01R0/AJJ




Date of Approval: October 10, 2007

8.0 DATA SCHEDULE


SUBMERSIBLE SUMP PUMPS


ADDITIONAL TECHNICAL INFORMATION OR FEATURES TO BE FURNISHED BY
SEC:

A.









ADDITIONAL SUPPLEMENTARY DATA OR FEATURES PROPOSED BY
BIDDER/VENDOR/SUPPLIER/CONTRACTOR:

B.









OTHER PARTICULARS TO BE FILLED UP BY BIDDER/VENDOR/SUPPLIER/
CONTRACTOR:

C.







Actual Manufacturer

of Equipment/Material
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

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