ML20197C068

App D to Inservice Insp Program 80A4721, Pump Testing

ML20197C068
Person / Time
Site:	Yankee Rowe
Issue date:	10/20/1986
From:	NUCLEAR ENERGY SERVICES, INC.
To:
Shared Package
ML20197C062	List: ML20197C058 ML20197C068 ML20197C072
References
80A4721-APP-D, NUDOCS 8610310180
Download: ML20197C068 (4)

Text

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• DOCUMENT NO. 80A4721 l

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• 0 1 4 C NUCLEAR ENERGY SERVICES, INC.

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APPENDIX D PUMP TESTING p*$$

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8610310180 861020 PDR ADOCK 05000029 G PDR FCCM = NES 2C5 2.80

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?o 80A4721

, DOCUMENT NO.

NUCLEAR ENERGY SERVICES, INC.

PUMP TESTING Article IWP-1100 of the code states that only pumps that are provided with emergency power are subject to inservice inspection. The only pumps that fall within the scope of IWP are the Low Pressure Safety Injection (LPSI), High Pressure Safety Injection (HPSI) and the Emergency Boiler Feed (EBF) pumps. These pumps are listed in Table D- 1.

PUMP LIST NOMENCLATURE g

The following abbreviations have been used in Table D.I. $*i N = Rotative Speed Pi = Inlet Pressure Po = Outlet Pressure s.

Q = Flow Rate V = Vibration Amplitude T = Bearing Temperature b

L = Lubricant Level M = Monthly X =

Parameter to be Measured Tne following notes are referenced in Table 0.1.

1.

This is a positive displacement pump, with speed controlled by a governor.

There is no means of determining flow on a monthly basis. Flow is determined at refueling outages by measuring a level change in the steam generator. This can only be done with the steam generator secondary side manway open, thus it cannot be done at cold shutdown.

2. Constant speed pump.

3. There is no means of determining the flow.

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• NES 2C5 2/80 '

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, DOCUMENT NO. 80A4721

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NUCLEAR ENERGY SERVICES. INC.

4. Table IWP-3100-1 specifies that dif ferential pressure shall be one of the test quantities. Yankee Rowe requests relief from the use of differential pressure as a test quantity in favor of our present means of determining adequate pump performance, in accordance with the Technical Specifications. In all cases the suction pressure of the pump is determined by the level of water in a vented tank. The tank levels are controlled by procedures, and the maximum allowable variance in the levels corresponds to a maximum variance in pressure at the pump section of one psi for the LPSI and HPSI pumps, and 4.3 psi for the EBF pump. In all cases the discharge pressure would not be significantly afffected by the maximum variation in suction pressure. being 0.4% for the LPSI pumps,0.196 for the HPSI pumps, and 0.5% for the EBF pump. All values are less than the accuracy of the calibrated pressure guages presently installed. The Technical Specifications, in recognition of this, require only that minimum volu..aes of water be present, and that minimum values of discharge r pressure be demon 3t.ated.

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Yankee intends to maintain the status quo of satisfying the Technical Specifications, and can see no benefit whatsoever of calculating a differential pressure, so long as tank levels and discharge pressures are within their specified limits. If these limits are not met, then discharge pressure will be calculated to ensure adequate pump performance.

P nh'S hh FCC'1 z NES 205 2,80

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TABLE D.1 s:3 {

m U PUMP LIST to

$ g Test Measured Parameters 4 System Pump ID P & ID Class Freq. N Pi (4) Po Q V Tb '

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r-Feedwater (EBF) P-5 M-14 3 M X X X (1) X X X f

s Safety injection L PSI-1,2,3 M-7 2 M (2) X X (3) X X X $

a rn Safety injection H PSI- 1,2,3 M-7 2 M (2) X X (3) X X X @

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