ML20248C273

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Rev 0 to Calculation 52091-C-014, Evaluation of Motor Control Center 42A
ML20248C273
Person / Time
Site: Monticello Xcel Energy icon.png
Issue date: 03/30/1995
From:
EQE ENGINEERING CONSULTANTS (FORMERLY EQE ENGINEERING
To:
Shared Package
ML20248C136 List:
References
52091-C-014, 52091-C-014-R00, 52091-C-14, 52091-C-14-R, NUDOCS 9806020104
Download: ML20248C273 (19)
v • d • e


Text

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l (OM CALCULATION COVER SHEET l ('~ '

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.pt:: 7, l

l Calculation No:

8107/ 'C ~ CIN Project:

k) W M D A5T*/C.2LLO

/PE2C Calculation

Title:

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References:

$EE /e/vg Attachments: AIT44# MENT

2. FNdi6 Total Number of Pages (including Cover Sheet): 6 DCWDING WG'M o

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SCREENING AND EVALUATION SHEET (SEWS)

Plant Name: Monticello Unit:

1 PART A. DESCRIPTION Equip. ID No. MCC-43A Equip. Class Motor control center Equipment Description Motor control center Equipment Location: Bldg. TB Floor El. 911' Room, Row / Col Manufacturer, Model, Etc. E MCG fraTD IS 14'31 Seismic input Elevation DP y : 3 3 mtprpt isTsem V+ tw ps:.tusz tph PART B. CABINET EVALUATION IO

['

1.

Is cabinet of good seismic design?

hN U N/A Mounting tab and rolled flange stiffness

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Internal device mountings CA*X *fG T M O/.f?augj g,0L.TC)

Cabinet and attachrnent weight v gegg Load paths Gurp Cabinet cutouts HeNE Cabinet stiffness C+xt?

General cabinet configuration P/p P W TivN 16 f6 p Door attachment Motor starter panel unit mountings hN 2.

No other cabinet concerns?

U N/A is cabinet itself screened out?

N U PART C. RELAY WALKDOWN g(;,0(p TD /4(jpc55 1.

Does spot check of essential relays indicate Y N U relays are present and properly mounted?

2.

Are essential relays screened out?

Y N U

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. Equip. ID No. MCC-43A Equip. Class Motor control center

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If no, attach list of relays with locations in cabinet and general dimensions, thicknesses and details of mounting plates that support relays.

3.

No other relay concerns?

Y N U N/A.

j Are requirements for relays satisfied?

Y N U PART D. ANCHORAGE EVALUATION 1.

Is strength assessment based on:

I Judgement (supported by generic analysis)?

J SE $TM i

Specific analysis? Sec C s v Oo, G'Z.D'\\t-C,-Ch@

Other?

C.-O tt Other i

2.

Is strength adequate?

ihU N/A 3.

Is stiffness adequate?

hN U N/A o

hN

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No other anchorage concerns?

U N/A l

Is anchorage adequate?

YhU I'

PART E. SYSTEMS INTERACTION EFFECTS 1.

Is cabinet free from influence by adjacent hN U N/A elements?

F42/cG IN Eun UILL $ESTf2 sis Cabinet contains soft targets 5/5 F65PsNcE.

sur.soas Cabinet contains essential relays t@

I M f'A C I H A Y W N 2. wwc t

Flexibility of attached lines op.

T0F W'E T'# T U To u M E S Com v4m g

l-Collapse of nearby equipments or structures O

NN #M b

' Masonry block walls 2.

No potential sources could flood or hN U N/A j

spill onto cabinet?

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SCREENING AND EVALUATION SHEET (SEWS)

O Equip. ID No. MCC-43A Equip. Class Motor control center j

3.

No other interaction concerns?

Y N U N/A i

is equipment free frorn interaction effectt,7 N U DESCRIBE POTENTIAL PROBLEMS INDICATED BY NO OR UNSATISFACTORY (Use additional sheets,if necessary)

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lS EQUIPMENT FREE OF NEED FOR FURTHER INVESTIGATION, EXCLUDING RELAY l

CHATTER 7

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YES NO lS EQUIPMENT FREE OF NEED FOR FURTHER RELAY CHATTER INVESTIGATION?

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YES NO j

Evaluated by:

9LN Date:

I '11 ' 9 6 Evaluated by:

PSR Date:

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Plant Name: Montiqello Unit:

1 PART A. DESCRIPTION Equip. ID No. MCC-43B Equip. Class Motor control center Equipment Description Motor control center Equipment Location: Bldg. TH Floor El. _9_3.1' Room, Row / Col Manufacturer, Model, Etc.

Seismic Input Elevation W

VLTS)'To H CC 4 SA PART B. CABINET EVALUATION gIpE

,151 si06 1

1.

Is cabinet of good seismic design?

Y N U N/A Mounting tab and rolled flange stiffness C

Internal device mountings Cabinet and attachment weight

. Load paths Cabinet cutouts Cabinet stiffness-General cabinet configuration Door attachment Motor starter panel un:t mountings 2.

No other cabinet concerns?

Y N U N/A Is cabinet itself scree;.ed out?

Y N U PART C. RELAY WALKDOWN 1.' Does spot check of essential relays indicate Y N U N/A relays are present and properly mounted?

2.

Are essential relays screened out?

Y N U N/A l

i O

2HD299nb/MCC-sews

6 2 6 ^ j - C -) I 6 Sheet 2 of 3M SCREENING AND EVALUATION SHEET (SEWS)

Ov Equip. ID No. MCC-43B Equip. Class Motor control center if no, attach list of relays with locations in cabinet and general dimensions, thicknesses and details of mounting plates that support relays.

3.

No other relay concerns?

Y N U N/A Are requirements for relays satisfied?

Y N U PART D. ANCHORAGE EVALUATION 1.

Is strength assessment based on:

Judgement (supported by generic analysis)?

J Specific analysis?

A Other?

Other 2.

Is strength adequate?

Y N U N/A 3.

Is stiffness adequate?

Y N U N/A 4.

No other anchorage concerns?

Y N U N/A is anchorage adequate?

Y N U PART E. SYSTEMS INTERACTION EFFECTS 1.

Is cabinet free from influence by adjacent Y N U N/A elements?

Cabinet contains soft targets Cabinet contains essential relays Flexibility of attached lines Collapse of nearby equipments or structures Masonry block walls 2.

No potential sources could flood or Y N U N/A spill onto cabinet?

O l

l 2HD299nb/MCC-sews

h[hh f ' b ~ODb Sheet 3 of

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j SCREENING AND EVALUATION SHEET (SEWS)

O 1

Equip. ID No MCC-438 Equip. Class Motor control center f

3.

No other interaction concerns?

Y N U N/A is equipment free from interaction effects?

Y N U j

DESCRIBE POTENTIAL PROBLEMS INDICATED BY NO OR UNSATISFACTORY (Use additional sheets,if necessary) l l

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NO _ j.

g gwc 4 YES IS EQU!PMENT FREE OF NEED FOR FURTHER RELAY CHATTER INVESTIGATION 7 YES NO Evaluated by:

M Date:

I ' Il '%

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%M Date:

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