ML20236K856

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Calculation M-300 Re Cable Fire Heating of Torus Compartment Ceiling Beams
ML20236K856
Person / Time
Site: Pilgrim
Issue date: 07/22/1987
From: Mogolesko F, Rainey P, Sawdye R
BOSTON EDISON CO.
To:
Shared Package
ML20236K835 List:
References
NUDOCS 8708100023
Download: ML20236K856 (31)
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__

E sosnw CALCULATION COVER SHEET 2"f1

& ED/ SON PILGRIM NUCLEAR POWER STATION iofJy sheet CALC.NO. MShh REV. I File No.

MC SR h R-Type Sub']ect CRBLE FtREN6H77/Xr 6 TOEKS D

NSR ContPBgnHW CEIL /NS-8GA/?lS Preliminary Calc.

D A V/ h N E A M D Discipline Group r

Finalization Approval /s/

[d/A M Date 7/2E/p7 Due Date Final Calc.

[4 N lUgpl0s id N 7/21/M Statement Attached

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Independent Verifier muuuuu ulu muuuum us Page(s) By k k(( b9Why6 Date C h'k'd f h, kdt/Q:Y Date Agreed Zh ISI a.

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This design analysis (

) DOES, (K) DOES NOT require revision to affected deshin documents.

Affected Desig%) IS NOT Required.

n Documents:

A PDC ( ) IS, A Safety Evaluation (

) IS, (K) IS NOT Required Prior To Docuent Retris;pQM S&SA Group Leader WdEte I IN2 l O C#ncurred Date Minor revisions made on pages of this calculation. See next revision.

Replaces Calc. No.

Volded By Calc No.

Or Attached Memo Exhibit 3.05 B Rev. 8 870ejo0023 070804 DR ADOCK 05000p93 PDR j

CALCULATION SHEET

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SUBJECT:

M-300 Cable Fire Heating of Torus Compartment Ceiling Beams SR NSR [

1 1.0 STATEMENT OF PROBLEM Cables in an open tray raceway located within the Pilgrim Station Torus Compartment represent a fire hazard. An analysis is required to assess the magnitude and significance of this hazard.

The particular

(

motivation for this analysis is a concern for whether or not these fixed cable combustibles represent a fire hazard sufficient to threaten the integrity of the fire area boundary by causing the structural failure of the ceiling support beams. This analysis is related to an exemption request (from the specific requirements of 10CFR50, Appendix R), No.13, f

originally presented in BECo letter no.86-176, dated November 14, 1986

[I].

The specific exemption request, no.13, was revised in BECo letter B7-062, dated April 21, 1987 [2].

2.0 RESULTS AND RECOMMENDATIONS The analysis demonstrates that a fire consuming the cable combustible materials in tray sections RP01 through RP07 will not cause the structural failure of the torus compartment ceiling or any loss of ceiling integrity significant to its role as a fire area boundary.

Specifically, steel beams that are required to support the ceiling, including the loads on the floor above the torus compartment, will not fail due to a fire involving the fixed combustibles in the torus compartment.

Therefore, there is no need to provide additional protective measures for the ceiling beams, as described in Reference 1 (installation of cable tray cover).

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NSR 1

I 3.0 METHOD OF SOLUTION 3.1 The first method used to assess the fire hazard associated with l

the cables in the tray sections inside the torus compartment was i

based on the standard fire area combustible loading evaluation i

I method to determine the required fire resistance for materials of construction.

Chapter 9 of Section 5 in the Fire Protection l

I Handbook, [3] explains the fire severity and fire load concepts. Chapter 8 of Section 5 explains the concept of fire resistance of structural systems.

l The only significant fixed combustibles within the torus compartment are electrical cables, and the largest concentratica of exposed cables in the compartment are the cables in tray sections RP01 through RP07.

The total heating value associated with the combustible portions of the cables was divided by a m

fraction of the torus compartment floor area, and this value was used to determine the equivalent duration of exposure to the standard time-temperature environment of the testing furnace specified in ASTM E119 [4). This equivalent exposure duration was then compared to the fire resistance values calculated for the various steel beam section shapes used at Pilgrim to support the torus compartment ceiling.

l l

3.2 The second method to analyze the cable fire hazard was based on 4

a conservative estimate of the actual heat transfer that could occur from a fire involving cables directly beneath a beam to the beam section enveloped by the fire plume. The heat release rates from fire tests involving similar cable materials were l

used, along with a conservative overestimation of the effectiveness of heat transfer from the fire gases into the beam, to determine the :'aximum temperatures that exposed beam sections could possibly achieve.

These temperatures were than compared to a critical or assumed failure temperature for the material.

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4.0 INPUT DATA AND ASSUMPTION _S Two methods of analysis were used.

The following input information and assumptions were used in the analyses, as noted:

(1) conservatively assume that the cable fire consumes all of the combustible material in the cable design (both analyses);

(2) conservatively assume that the heating value for all of the combustible caterials used in the cable design can be l

represented by the total heat of combustion (as measured in a calorimeter) of the material with the highest value -- in this case, the 11,000 B/lb associated with the Okonite insulation [r1 (both analyses)

(3) there are no other significant combustibles in the torus compartment (both analyses);

m (4) the initial and ambient temperatures are 100F (both analyses):

(5) the exposure of the beams to the fire is not concurrent with an l

earthquake - no seismic loads (both analyses);

(6) structural failure is conservatively assumed to occur when the steel temperature within the exposed section reaches 1022F l

(first analysis, section 5.1 of this calculation) or 1100F (second analysis, section 5.3 of this calculation - this is associated with a reduction of yield strength for various structural steels of approx. 40% to 50% from their normal room l

l temperature strengths (Reference 6);

(7) conservatively assume that the beam section is totally exposed

)

to heating by the fire - no part of its section perimeter is embedded or otherwise protected (both analyses);

(8) conservatively assume that there is no heat transfer from the beam section to the ceiling or conduction to cooler sections of the same beam or other connected members (both analyses);

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(9) the beam sections are assumed to absorb heat originating from the combustion of material within the prt ected area of the i

beams on the tray sections -- for simplicity and to conservatively analyze the heat transfer into the most compact amount of steel, the beams and tray sections are assumed to always cross at 90* (second analysis, section 5.3 of this calculation);

(10) the following beams are assumed to be required for the integrity of the torus compartment ceiling in its role as a fire area boundary or fire barrier (both analyses) - from Reference 7-H30 x 99 H30 x 172 H30 x 210 H36 x 170 m

H36 x 230 H36 x 300 1

(11) conservatively assume that the total mass of cable combustibles is determined by the cable weight less the summation of the conductor weights, using the weight of solid copper wire instead of the actual class B, strauled conductor weight (both analyses) l

- from References 8 and 9.

5.0 CALCULATIONS AND ANALYSES 5.1 Tile combustible loading of the torus compartment can be conservatively overestimated by dividing the heating value per-unit length of the most heavily loaded tray section by one half of the minimum compartment width around the torus (i.e., the largest heat release potential per unit length of tray divided by the minimum half-distance between the compartment walls on opposite sides of the torus axis). The cable material heating potential,is derived from the information provided in References 5, 8, 9 and 10. The most heavily loaded tray section in the fire area is RP01, containing the cables presented in the table below, from Reference 10:

No. of Cable No of Conductor Cable Cable weight v

_ Cables Code Conductors Size (AWG)

OD (hd (lb Der ft) 26 212 2

12 0.49 0.141 2

312 3

12 0.52 0.155 1

712 7

12 0.71 0.329 1

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SUBJECT:

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SR The combustible loadings of the tray sections were determined by subtracting the weight of the copper conductors from the total weight of the cables residing in the tray. The weight of solid NSR copper conductor, with size designation of 12 AWG, was obtained from Reference 9.

For the most heavily loaded tray section, RP01, the combustible loading was determined as follows:

copper conductor weight, 12 AHG - 0.0198 lb/ft j

j total number of conductors -

26(2) + 2(3) + 7 - 65 total cable weight -

26(0.141) + 2(0.155) + 0.329 - 4.305 lb/ft total combustible material weight -

4.305 - 65(0.0198) = 3.018 lb/f t The most heavily loaded tray section, RP01, contains 3 lb/ft of combustible materials.

m.

a The torus compartment geometrical information was obtair.ed from Reference 7.

The sketch below portrays the minimum distance between compartment walls used in this analysis:

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Using the higher heat of combustion, for the cable insulation, to represent the heating potential for both the insulation and jacket material, the linear heating potential is:

(3 lb/ft of tray) (11,000 B/lb) - 33,000 B/ft Using the minimum distance between the flats of the inner and outer torus compartment walls, and dividing that distance in j

half to conservatively account for the area reduction due to the curvature of the room, the fire area combustible loading in the j

locality of the exposed cable tray is:

l (33.000 B/ft of trav) 31 ft

- 2129 B/ft2 2

Using the approximate equivalence of fire loading and fire O

severity (as represented by exposure to the standard time-L,/

temperature environment in a test furnace) of 80,000 B/ft corresponding to i hour [3], the torus compartment equivalent fire severity is:

2129 - 0.027 hrs. - 1.6 minutes 80,000 This serves to demonstrate the very " light" fire load that exists in thg torus compartment, where anything less than 100,000 B/ft' is usually considered to be a " light" or low fire load [3].

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SR l

NSR The ability of fully exposed steel members to withstand exposure,i to the standard furnace test environment is presented in l

Reference 6, on p. 138 in Figure 9.6.

This figure is included l

in this calculation as Attachment 5.

The figure shows that the exposure time before failure (defined as average steel section temperature of 550C or 1022F) is a monotonic function of P/A, the ratio of exposed section perimeter and cross-sectional area.

For the situation of concern in the Pilgrim torus compartment, the assumptions of full perimeter exposure and failure at 1022F are conservative.

Using the neel section properties obtained from Reference 11 for each type of beam used to support the torus compartment ceiling to calculate a P/A ratio, and then using Figure 9.6 of Malhotra (Attachment 5) to determine the exposure duration before failure, the following results for fire resistance are obtained:

\\

beam section P/A Exposure Duration (wide flanae)

(in~')

(m" )

to Fail (min.)

i t

H30x99 3.44 135.4 14 H30x172 2.34 92.1 16 values ar'e W30x210 1.93 76.0 18 approximate, H36x170 2.38 93.7 16 rounded to H36x230 2.01 79.1 18 nearest H36x300 1.56 61.4 21 integer where, P-2d+2b +2(br-tw), values presented in Attachment 6.

f With a fire severity or fire lo;d of approx. 2 minutes, and a fire resistance in the steel supports of approx.14-21 minutes, the fire area boundary integrity is not significantly threatened by the cable fire.

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SUBJECT:

M-300 Cable Fire Heating of Torus Compartment Ceiling Beams h

SR NSR 5.2 The smallest size beams, the W30x99 shape, are actually over tray sections RP04, and RP05.

These tray sections are loaded with fewer cables than RP01, and their combustible loading is determined below for the second analysis method. The cables presented in the table below are obtained from Reference 10:

)

no. of cables cable no. of conductor cable weight rade conductors size (AWG) OD (in)

(lb Der ft) 22 212 2

12 0.49 0.141 1

312 3

12 0.52 0.155 1

512 5

12 0.65 0.270 As before, the copper conductor weight is 0.0198 lb/ft, m

the total number of conductors is 22(2)+1(3)+1(5) - 52, the total cabla weight is 22(0.141)+1(0.155)+1(0.270) - 3.527 lb/ft, and the total combustible material weight is 3.527-52(0.0198) - 2.497 or 2.5 lb/ft.

The second analysis method is basically a simple and conservative approximation of the heat transfer process that actually occur if a fire could be established in the cable tray sections of concern. The approach consists of:

(1) estimating the manner by which a fire involving the cable l

materials releases heat, i.e., the fraction radiated and the fraction convected upward by plume gases; (2) estimating the fraction of total heat released absorbed by the beam material; (3) estimating the flows of heat from the beam (into the ceiling, or to the air and objects in the torus compartment by convection and radiation, respectively);

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SUBJECT:

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(4) estimating the redistribution of heat within the beam i

(conduction within the section and along the beam axis).

l To avoid a complex analysis, conservative and simplifying assumptions are made about the heat transfer mechanisms.

First, the beam section exposed to the heating by the fire is assumed to be perfectly insulated from any heat sink - no conduction to the ceiling or the rest of the beam, and no heat losses by surface convection or radiation. Second, the heat released by radiation is mostly intercepted by objects other than the beam and the plume gases impinge and envelope the beam directly above the fire; therefore, the fraction of fire heat released that is absorbed by the beam is based on an estimate derived from the heat release mode fractions for the combustible materials.

This estimate is derived below.

The Okor.ite/0koprene cable combustible materials consist of:

)

1 insulation - Okonite, formulation of ethylene -

I propylene rubber (EPR)

I jacket

- Okoprene, formulation of neoprene rubber i

EPRI funded tests at Factory Hutual Research Corporation of the i

burning characteristics of cable materials, including these two types of formulations.

Each of these materials was tested in combination with another type, but an estimate can be made of their burning characteristics together from the available data.

Table 5-7 from Reference 12 (Attachment 7) provides measurements of 53% for radiative release fraction for XPE/ Neoprene cables (XPE designates cross-linked polyethylene). Table 5-land 5-2 from Reference 13 (Attachments 8 and 9) provide measurements and calculated values to derive a set of radiative release fractions for various tests of EPR/Hypalon cables (Hypalon is a trade name of a chlorosulfonated polyethylene, or CleSePE). These values are:

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, Release fraction

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12 0.46 13 0.55 1

l 14 0.63 The two materials involved in these tests that are not present in the cables of concern, XPE and C1.S.PE, were tested in combination themselves and found to have a radiative release fraction of 34% (from Table 5-7, Ref.12, AH. 7).

Therefore, since the polyethylene do not contribute to radiation as much as the rubbers do, a cable constructed from EPR/ Neoprene formulations would be expected to radiate significantly more than 50% of the heat released.

The conservative and simpMfying assuniption for the following heat transfes analysis if that 50% of the heat released by total 7

combustion of tha cable materials is absorbed by the beam. This could be seen as assuming that radiation is only 50% of the heat and that this is not absorbed, but that 100% of the connectively releascd heat is abssbed. Convective heat transfer from a fire l

through plume gases to a solid surface is certainly not 100%

l effectN e - considerable smounts of hot gases will drift away i

fro'n the region above the fire and begin to fill the upper i

elevations of the torus compartment. Since the cable trays are i

at least one foot below the beams and the trays are suspended away from walls and other objects within the compartment, sost j

of the radiation released by flames or radiating portions of the plume will be intercepted and absorbed far away from the beam section of concern.

l Considering that these cables would not be expected l

to burn as efficiently and completely as in the large-scale fire i

tests and calorimeter tests performed to obtain the release a

fraction and beats of combustion data, the assumption of 50%

heat transfer to the beam section is conservative for this analysis.

i

  • obtained from Radiative Heat Release Rate of Table 5-1 divided by l

i corresponding summation of Radiative and Convective Heat Release Rates of Table 5-1 and Table 5-2.

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5.3 The temperature rise in the steel beam section is conservatively approximated by the energy absorbed into the section material divided by the product of the material mass and its specific heat, or i

&bA f ['" ~, Na u c

The energy absorbed into the beam section is conservatively assumed to be one half of the heat released by the fire consuming all of the cable combustibles in the tray within the projected area of the beam directly above the tray. The length m

of tray directly beneath the beam is equal to the beam flange width, since the beam and tray are always assumed to cross at 90' angles.

The tray is always one foot in width, and therefore, the beam section length is always one foot in length.

Since the steel specific heat increases by almost 70%

when it is heated from 100 to 1100*F, a temperature-averaged specific heat value is used. Thus, the expression becomes E' r =Aw= & r s

a l4 Mesduskis hf ANc.

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The following values or expression are used for each of the tray section and beam combinations:

ls, = 6.S~

Mle= lI,0g B/jf 6

c,yt = p.n3 + 37W'ETw

)l>lF where the temperature-averaged specific heat expression is derived from the following values provided by Reference 14:

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M-300 Cable Fire Heating of Torus Compartment Ceiling Beams h

SR Since the steel is initially assumed to be at 100F, and the variation is assumed linear, NSR [

GM=0M d 0

  • IA*

a,Ch4=$.19F+/9P(i$e'?~?#)+

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//49 - 9 J

%, Gy = Q.It3 + 3 st9"ETw'

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Substituting these values into the expression for all tray / beam combinations, 45 A%s hc06Me)

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l SR NSR therefore, isolating variables by eliminating denominator, I

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  • MF 3,M,9W+/?3,333,333fNsec )$

l 66=

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- l, frF3,33 (S(' I j iM.-

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The smallest beam size, H30x99, is asspciated with tray sections l

RPO4 and RP05, which contain 2.5 lb/ftZ of cable combustibles.

The other beam sizes of concern are associated with various tray loadings, but will be conservatively assumed to be exposed to l

2 the maximum loading of tray section RP01, 3.0 lb/ft.

The beam i

section temperature increases determined by this analysis are presented in the table below:

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The maximum beam section temperatures determined by this conservative analysis are all well below the critical failure I

temperature of Il00F. The torus compartment ceiling beams are not subject to structural failure due to the burning of cables in tray sections RP01 through RP07, even when considering the impingement of the fire gas plume for cable fires located directly beneath the beams.

Given that the cables are the only fixed combustible in the fire area, the cables are located far from any exposure to possible i

transient combustibles that may provide an exposure fire, the l

cables are all low voltage control cables, the cable combustible material is difficult to ignite and has passed the flame test

{

portion of the IEEE 383 standard, the cable tray sections are m

essentially horizontal raceways with only minor elevation changes over its run above the torus, and the torus compartment is a very large volume that can easily absorb the heat released by the fire both connectively and by radiation, it can be concluded that the integrity of the torus compartment ceiling is i

not threatened by a cable tray fire.

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6.0 REFERENCES

1.

BECo Letter No.86-176, BECo Exemption Requests 11-14, November 14, 1986 l

2.

BECo Letter no.87-062, 10CFR50, Appendix R Exemption Request-

)

Supplemental Information on Tray Cover, April 21, 1987 3.

Fire Protection Handbook, Fifteenth Edition, National Fire Protection Association, 1981 4.

ASTM E119. " Standard Methods of Fire Tests of Building Construction and Materials," American Society for Testing and Materials, Part 18 5.

Telephone Conversation with Mr. Ettore Bartolucci, Engineer with the Okonite Company, Ramsey, NJ, January 28, 1987 6.

Malhotfd, H.L., Desian of Fire-Resistina Structures:

Chapter 6 - Properties of Materials, Chapter 9 - Design of Steel Elements, i

Surrey University Press, London, 1982

)

7.

Drawing no. C-132, Reactor Building Steel Framing Plan at Elevation 23 f eet, Pilgrim Station, Unit 1, Boston Edison Co., Rev. 6, final issue, 2/4/74 (see Attachment 4) l 8.

Okonite Product Data Sheets, Section 4, Sheet 3 (see Attachment 1) l 9.

Copper Conductor Tables l

(see Attachment 2) 10.

Cable Raceway Report, E345, Book 2, Pilgrim Nuclear Power Station, Unit 1 11.

" Table of Properties for Designing H M,S and HP Shapes, and Allowable Stress Design Selection", American Institute of Steel Construction, New York, 1974, conforms to Supplement No. 3 to the AISC Specification, effective June 12, 1974 (See Attachment 6) 12.

Tewarson, A, Lee J.L, and Pion, R.F, " Categorization of Cable Flammability Parameters," EPRI Report No. NP-1200, October 1979 13.

Sundtra, " Categorization of Cable Flammability - Intermediate -

Scale Fire Tests of Cable Tray Installations," EPRI Report No.

NP-1881, August 1982 14.

Table 1, Thermal Properties of Materials, SFPE, TR84-1,

" Predicting Temperature Rise in Fire Protected Structural Steel

~

Beams," Society of Fire Protection Engineers,1984 (See Attachment 3)

B E.C0 FORM 3930

CALCULATION SHEET

{^ Q y7,og go C PREUMINARY REV DATE Po cHh E 0% PREPARED BY DATE

@ FINAL fgR j2kHECKEo BY E _ DATE E

87 REV 1 DATE 7/22/87 BOSTON

.,gvo ev_(4(/

oAre et/#7 EDISON sheer /g 0,w

SUBJECT:

M-300 Cable Fire Heating of Torus Compartment Ceiling Beams SR b NSR 7.0 ATTACHMENTS 1.

Okonite Product Data Sheets, Section 4, Sheet 3, (See Reference 8) 2.

Copper Conductor Tables, (See Reference 9) 3.

Table 1, Thermal Properties of Haterials, SFPE, TR84-1, (See Reference 14) 4.

Copies of Portions of Marked-up Drawing No. C-132, (Reference 7) 5.

Figure 9.6, " Relationship between Ps/As and tf for unprotected steel when Ts=550C ", (from Reference 6 )

6.

Page 4 "H Shapes, Properties for designing", (From Reference 11) 7.

Table 5-7, " Ratios of Heat of Combustion," (From Reference 12) 8.

Table 5-1," Radiative Heat Release Rates," (From Reference 13) 9.

Table 5-2," Convective Heat Release," (From Reference 13)

B E Co FON 3930

]

i

__m

@V Section. s

! Product Data X

4 S he.. et 3.,

((

7s w #avr b augm.

~

b O <onite-Okopren\\e. clrer m/-A947 OKeHnE ax 1000 Volt Control Cable (rarwarst)

Multiple Copper Conductors /90C Rating ' dNW/rr

/f 000 8 Teds O N K140 gdes %

Insulation A

=

Okonite is Okonite's trade name for its NEC. Amembled with flame and mois-heat resistant, mechanically rugged ture resistant fillers wtwe necessary ethylene-propylene based insulating and either an extruded belt or cable compound. The insulaton thickness for tape.

wires sizes #18 AWG tt. rough #16 AWG Overall Jacket Meets or exceeds Ghfowi is 25 mils; #14 AWG through #9 AWG is requirements of IPCEA S 19-81,5th B

30 mils. Conductors are paint mior Edition, Part 4.

coded with solid and tracer colors as required for proper identification.

Prodact Features r w=wI.

Jacket - Single Conductor 4

ung j

Each single conductor has a 15 mit

. Flexible, easy to install and terminate, Okoprene jacket. The Okoprene (neo-Color W i

prene) jacket assures circuit integrity e Resistant to water, oil and most og

, because of its high rrechanical st ength, 3,

C, r

and exce t resistance to flame, ozone, temperatures.

Overall Jacket

  • High insulation res: stance, even at The overall Jacket is also Okoprene of elevated temperatures i

the proper thickness for the cable Additional information D --+-

diameter. The Okoprene (Neoprene) jacket assures circuit integnty because Wts and Dhons sie of its hign mechanical strength and ex, omtained m N reverse d Ws sheet, Noe, fmon is preseMed m m

cellent resistance to flame, ozone, oil mate sheets fM in the back d and most chemicals.

E -+-

this section. For additional information Applications contact your Iccal Okonite representa-Okonite-Okoprene 600V 1000 control M w he Center Manager cables are recommended for use where maximum circuit integrity is requi ed as well as maximum flame resistan i

They are recommended for wet or dry locations, ac or de service at conductor temperatures to 90C.They may be in-stalled in mnduit, ducts, cable troughs and

  • NED CALC NO. b Mf#'^ l.

Specifications ATTACHMENT I

I Conductors Coated cooper per ASTM PAGE I

0F 1

I 8,

SS S rand.

I A Coated. Stranood conductor e in.ui.t.on - okonne Insulation: Meets or exceeds electncal e16 AWG & s16 AWG - 25 m6te and physical requirements of interim i

^

Standard #1. IPCEA S-68-516 (NEMA cJ ket s.n.

D Estruoed Best or cable tape and titlers WC-8-1971) and IPCEA S-1941, 5th gb d

E O :ter Jacket Okoorea*

Edition. Part 4. Paint mlor coded per IPCEA S 19-81, Part 5 Method I or per v

i n.

i

Product Data snite-O <oprene Section 4: Sheet 3 l

,, Volt Cont'rol Cable giple Copper Conductors / SOC Rating onits-Insulatiott #18 Awg & #16 Awg 25 mils; 14 Awg through 9 Awg 30 mils; Single Conductor.18cket 15 mils-Outer Jacket neoO No. of No. of Theknees Appron. O.D.

Not m

%g a

Condrs Sire AWG Strands mHs mm in.

mm tamfar wt uajor i

411 1112 2

18 7

45 1.14

.43 10.92 107 121 611 1113 3

16 7

45 1.14

.45 11 43 123 139 411-1114 4

18 7

45 1 14 49 12 44 14e 3e

!-11 1115 5

18 7

60 1.52

.56 15.22 189 219 11 1117 7

18 7

60 1.52

.61 15.49 219 262 11 1119 9

18 7

60 1 52

.70 17.78 295 338

-11 1122 12 18 7

60 1.52

.80 20.32 355 430 411 1120 19 18 7

80 2.03

.92 23.36 449 524

?-11-1132 2

16 7

45 1.14

.42 10.66 86 96 411.1133 3

16 7

45 1.14 44 11.17 97 111 411-1134 4

16 7

45 1 14 48 12 19 120 136 h11 1135 5

16 7

60 1.52

.56 14.22 167 197 b11 1137 7

16 7

60 1.52

.61 15 49 205 235 h11 1139 9

16 7

60 1.52

.70 17.78 295 338 411 1142 12 16 7

60 1.52

.79 20.06 324 399 k11 1149 19 16 7

80 2.03

.96 24.38 513 621 F11 1152 2

14 7

45 1.14

.45 11.43 117 131 h11 1153 3

14 7

45 1.14

.48 12.19 125 141 911 1154 4

14 7

60 1.14

.52 13.20 166 196 b11 1155 5

14 7

60 1 52

.60 15 24 233 276 h11 1157 7

14 7

60 1.52

.65 16.51 255 296

?-11 1159 9

14 7

60 1.52

.76 19.30 344 419

?-11 1162 12 14 7

80 2 03 90 22 86 462 537 N11 1169 19 14 7

80 2.03 1.04 26.41 662 770 h11-1302 T

12 7

45 1.14

.49 12.44 141 157

?-11 1303 3

12 7

60 1.14

.52 13.20 155 185 2-11 1304 4

12 7

60 1.52

.60 15.24 216 246 h11-1305 5

12

  • 7 60 1.52

.65 16.51 2 70 313 P-11 1307 7

12 7

60 1 52

.71 18 03 329 372.

b11 1309 9

12 7

60 1.52

.82 20.82 445 520 l

?-11 1312 12 12 7

80 2.03

.97 24.63 600 706 h-i

>-11 1319 19 12 7

80 2 03 1.13 28.70 860 968 i

L11 1482 2

10 7

60 1.14

.56 14.22 188 218 511 1483 3

10 7

60 1.52

.60 15.24 236 266 b11-1484 4

10 7

60 1.52

.65 16.51 277 320 S11 1485 5

10 7

60 1.52

.71 18.03 347 390 g

LA.

j

!-11-1487 7

10 7

60 1.52

.77 19.55 442 517 g

O l

?11 1489 9

10 7

80 2.03

.95 24 13 664 739 l

b11-1492 12 to 7

80 2.03 1.06 26.92 784 892 L11 1499 19 10 7

80 2.03 1.24 31.50 1147 1292 y p,,,

b11 1572 2

9 19 60 1.52

.59 14.98 226 256 g Zh b11 1573 3

9 19 60 1.52

.63 16.00 294 337 L'8

%11-1574 4

9 19 60 1.52

.73 18.54 325 368 gE

!-11 1575 5

9 19 60 1.52

.75 19.05 417 457 41

?-11-1577 7

9 19 80 1.52

.82 20.82 513 588 u.1 811 1579 9

9 19 80 2.03 1.00 25 40 735 843 O

O f4[

'11 1582 12 9

19 80 2.03 1.12 2845 933 1041 911-1589 19 9

19 80 2.03 1.31 33.27 1343 1488 mum 9danut2cturtng Quanttry for non-stock

& Authortled Stock items-Avtalath from Our s is 2000 except for e18 & 916 Awg Customer Servce Centers.

'h is 10 COO.

3

,y.

scard Facksos-2500' N R. Reet.

,';"JMCl,'l' '"'"*"** """~ '"'~

THs oxoPOR tNFORMATIOff M.eY b

mm hwN

>ne,,974

CONDUCTOR TABLES COPPER V

l SOLID WlRE STRANDED CONDUCTOR-CLASS B l

ge Strae Conductor Conductor Weight A

.No of Sue Circular Diameter.

Pounds /

kcmil Strands

_ inch inch 1000 ft j

AWG Mil Area anch 1000 ft 20 7

.0121

.036 32 20 1.020

.0320 3.1 19 7

.0136

.042 4.0 19 1290 D359 3.9 18 7

.0152

.045 50 i

l 18 1.620 0403 49 -

16 7

.0192

.057 8.0 16 2.580

.0508 7.8 14 7

.0242 DT2 12.7 14 4.110

.0641 124 13 7

.0272

.080 1E0 l

13 5,180 0720 15 7 12 7

D305

.090 "202' l

12 N

6198 %

10 7

.0385

.113 N

4 0.380

.1019 71 4 9

7

.0432

.127 40 4 9

13.090

.1144 39 6 8

7

.0486

.143 51.0 8

16,510

.1285 50.0 6

7 D612

.179 80.9 6

26.240

.1620 794 4

7

.0772

.226 1290 4

41.740 2043 126.0 3

7

.0867 2 54 162.0 3

52.620 2294 159 0 2

7

.0974 285 205.0 2

66.360 2576 201.0 1

19

.0664

.324 259 0 1

1 83.690 2893 253 0 1/0 19

.0745

.363 326.0 1/0 105.600

.3249 320.0 2/0 19 D837

.408 411.0 2/0 133.100

.3648 403.0 3/0 19

.0940

.458 518 0 3/0 167.800

.4096 508 0 4/0 19

.1055

.514 653.0 4/0 211.600 4600 641.0 250 37 DB22

.561 772.0 300 37 D900

.614 9250 350 37 D973

.664 1.080.0 l

400 37

.1040

.710 1236.0 l

450 37

.1103

.753 1.390.0 500 37

.1162

.793 1.542.0 550 61

.0950

.834 1.700.0 600 61 D992

.871 1,850 0 650 61

.1032

.906 2.006.0 700 61

.1071

.940 2.160.0 750 61

.1109

.973 2.316 0 800 61

.1145 1.005 2.469.0 850 61

.1180 1D35 2.622.0 900 61

.1215 1.066 2,780 0 950 61

.1248 1.095 2.933 0 1000 61

.1280 1.123 3.086.0 1250 91

.1172 1257 3,859 0 1500 91

.1284 1.377 4,632.0 1750 127

.1174 1.488 5.403.0 2000 127

.1255 1.591 6.t76.0

  • 2250 169

.1154 1.731 6.985 0

'2500 169

.1216 1.824 7.794.0

  • 2750 217

.1126 1.914 8.572.0

'3000 217

.1176 1.999 9.349.0 NOTE 1. Conductors are in accordance unth ASTM B3, B8, B33 or B189 NOTE 2. Stranded conductors through 2000 kemit are Class B compressed strand m accordance with ASTM 88-79, par.6.3.

' NOTE 3. Conductors larger than 2000 kemil are Class C futi round concentre NI NED CALC NO.

2-ATTACHMEpT PAGE OF

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4 3ef 2(

31 l

i FOR INFORM LY r....

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Table 1 Thermal Properties of Materials i

j i

Material Thermal Specific Heat Density Conductivity (Stu/lb 0F)

(1b/ftJ)

(8tu/ft hr 0F)

)

l, Steel 30.0 0 00F 0.107 9 00F 480.0 24.7 9 6000F 0.144 0 7500F 20.1 0 11000F 0.172 011000F 15.0 9 20000F 0.172 9 20000F Fire Protection 0.034 0 00F 0.206 0 00F 15.0 Material 0.044 9 4000F 0.241 9 4000F 0.067 0 7500F 0.304 0 7500F

{

Q 0.167 9 20000F 0.350 0 20000F i

i Concrete 1.01 0 00F 0.272 145.0 1.14 9 1600F l

0.74 913000F l

0.51 9 20000F ~

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f Figure 9.6 Relationship between P/A,and t for unprotected steel w hen T, = $50"C.

f j

'l by the insulation to the flow of heat. If it is assumed that the rate of heat flow through the insulation results from a linear temperature gradient, the quantity of heat received by the insulated section in time At is l

1 P,(T - T,) At J/m (9.7) q=

f j

1/2+

where z = coefficient of heat transfer (W/m2oC) d, = thickness ofinsulation (m) k, = thermal conductivity ofinsulation (W/m*C) 2 P, = surface of the insulation facing the steel section (m /m)

T = fire temperature at time t ('C) f T, = steel temperature at time t ( C)

At = timeinterval.

NED CALC NO. k

' fal/. f ATTACHMENT S

PAGE

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l 4

l-I W SHAPES

~

Properties for designing l

l

Elasts Properties Ih Axis X-X l

Amis Y.Y

' Area Depth. *'d'h l ThmkJ ne'Ch '

ss -

k j

'l d l I tt l 1 S lr } I l5 lr A

ness Designation i in.: 1 in.

i n.

in.

in.

ina in.s in.

in..

in.:

i n, i

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%r 36X300 88.3 36.72 16.655 1.680, 0.945 20300 1110 15.2 1300 156 3.83 X280 82.4 ' 36.50! 16.595 1.570' 0.885' 18900 1030 15.1 1200 144 3.81 76.5 36.24; 16.551' 1.440 0.841 17300 952 15.0 1990 132 3.77 X260 X245 72.1 l 36.06 ' 16.512 1.350 0.802 16100 894 15.0 1010 123 3.75 X230 67.7 '35.88 16.471 1.260 0.761 15000 837 14.9 940 114 3.73

~,

W 36X194 57.2 36.48,12.117 1.260 0.770 12100 665 14.6 375 61.9 2.56 X182 53.6 36.32 12.072 1.180 0.725 11300 622 14.5 347 57.5 2.55 j lltl,l X170 50.0 36.16 12.027 1.100'O.680 10500 580 14.5 320 53.2 2.53

. jy X160 47.1 36.00 12.000,1.020 j 0.653 9760 542 14.4 295 49.1 2.50 X150, 44.2 35.84 11.972' 0.940 0.625' 9030 504 14.3 270 45.0 2.47

'" N g

+'

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226 37.9 2.39 X135 39.8 35.55 11.945 0.794 0.598' 7820, 440 i

W 33X240 70.6 33.50' 15.865; 1.400 0.830 13600 1 813 : 13.9 933 118 3.64 X220 64.8 !33.25 '15.810;1.275 0.775l 12300 742 '. 13.8 ' 841 106 3.60

,Mh h AN X200 58.9 33.00 15.750{1.150' 0.715 11100 671 13.7l 750 95.2 3.57 W 33X152 44.8 33.50.11.565 1.055 0.635 8160, 487 13.5 273 47.2 2.47

. _ ~ i X141 41.6 33.31: 11.535 0. % 0.0.605 7460 448. 13.4 4 246 42.7 2.43 218 ' 37.9 2.38 j

X130 38.3 33.10'11.510' O.955; 0.580 6710 406 l 13.2 '

X118 34.8 32.86 11.484 0.738 0.554; $900 359 13,0 187 32.5 2.32 g

61.9 ! 30.38 15.105 1.315 0.775 9890 651 12.6, 757 100 3.50 g

30X210 X190 56.0 i 30.12; 15.040. 1.185 0.710' 8850 587 t 2.6, 673 89.5 3.47 1

g % X172 50.7 {29.88 14.985 1.065 0.655 7910 530 12.5 598 79.8 3.43 W 30X132 6 38.9 00.30 10.551 1.000 0.615-5760 380 12.2l 1%

37.2 2.25 l 34.2 ; 30.00[10.521' O.930 0.585 36.5 30.16 5360 355 12.1i 181 34.4 2.23 g !.I

',, r X124 10.500' O.850 0.564: 4930 ' 329 ; 12.0 { 164 31.3 2.19

', V X116 I

8-X108 31.8 l 29.82 10.434 0.760 0.548 4470 300 11.9 146 27.9 2.15

.t,,

5 i 29.1 29.64 10.458 0.670 0.522, 4000 { 270 11.7 128 24.5 2.10 g

ggX 99 eg2k+2(Q AMERICAN (NSTITUTE OF STEEL CONSTRUCTION NED CALC NO. Nd faa f ATTACHMENT fo' PAGE I

OF I

NjM l

i M M N.[

NED CALC NO.

7,31, 3_7 ATTACHMENT P

FA:zos er HrA: er cow.:s: rex PAGE

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OF

/

sMZFj 35 H /H "

HC "A I

Cable Sample p g

. H /2'.4Cl (granular)#

0.66 0.34

't[

,dPE (rranularl 0.65 0.35

".63 0.37

, idFE (81)

I t', PT /Ci ' E

  • PF. (el2)

^ 62 0.36 0.61 0.39

P/ lor. (granulari TVC (granular)#

0.59 0.41 I

XPE/FF).PE (#33)

'.57 0.43 i

i 11 XI I./ f

  • 5
  • Pi (als) n,57 0,43 I

I I E /T'VC (s4) 0.56 0.44 I

l l

r 6.53 0,47 I

Xi'E/!koprer.e (8.')

XPE/!>oprene (*17) 0.53 0.47 It-:y/PVO-Sy (816) 2.51 0.49 IE/PVC (87)

P.49 0.51 11./3b Ci (granular)'

O.40 0.52 0.48 0.52 IE Ny/PVC, !!y (*29)

H., I'P/CI'F*PE (#F) 0.47 0.53 n.41 0.59 it/PVC (a 3) a 6.4C 0.60 I

XTE/XPE (834) 0.37 0.63 i

TL/PVC (s6)

P!', PI'/CI

  • F

C.37 0.63 11, PP/CI*Salf (810) 0.35 0.65 hXTt/CiSerE (#16) 0.34 0.66 Silicone, glass braid (s:1) n.29 0.71 PE/46 tCI. (granular)#

0.23 0.77 F111 cone, glass braid / asbestos (8.22) 0.17 0.03 0.13 0.08

cflon (820)

Radiative Heat of Combustion: H s Actual Heat of Coutustion lt t g,

p li : ConmtWe Heat of Cohsdon g

Pesearch sampics data taken from Ref. Q)

% To,nna, A., La,u., bus," ews asp,'cd

~k W, e.F Pen * -

9m

,( u.

I244, a %,l9 5 5-13 i

1 l

NED CALC NO. NNIWf Table 5-1 ATTACHMENT F

RADIATIVE HEAT RELEASE RATES PAGE

/

OF

/

NM27p 3%

1 Actual Max.

Cable Type Measured Radiative.

Test and Maximum Relative Transmittance

, Heat Release Id.

Arrangement Radiation Humidity Coefficients Rate (kW)

(%)

(kW)

I.

.FREEBURN TESTS 1

P/P-TS 1198 38 0.850 1409 3

P/P-TS 2101 99 0.800 2626 4

P/P-ET 1604 74 0.821 1954 2

S/Al-TS 708 57 0.799 886 10 E/H-ET 186 84 0.816 228 'l i

11 E/H-L 411 54 0.842 488,

=

12 E/H-LS 1014 55 0.837 1211 II EXTINGUISHMENT TESTS I

l 5

P/P-ET 349 76 0.802 435

-I 6

P/P-ET 507 70

,0.820 618 7

P/P-ET 1503 76 0.815 1844 I

8 P/P-ET 2013 89-0.803 2507 j

9 S/A2-ET 74 86 0.795 93 I

13 E/H-LS 614 58 0.839 732 l

14 E/H-LS 250 75 0.825 303 j III MIXED TRAYS - EXTINGUISHMENT TESTS 15 P/P-ET 2218 35 0.884 2509 16 P/P-ET 1644 32 0.886 1856 17 P/P-ET 2213 76 0.800 2766 5-2

NED CALC NO.

M R! [

ATTACHMENT 4

PAGE

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OF

/

Table 5-2 CONVECTIVE HEAT RELEASE Calculated Values i

Relative Rate of I

Cable Type Peak Peak Convective I

Test and Plume Plume Heat Id.

Arrangement Temp.

Velocity Release *((N)

'C (20 ' )

m/sec(ft/sec)

I FREEBURN TESTS 1

P/P-TS 593 4.87(16.0) 2282 3

P/P-TS 628 5.2 5(17.2) 3334 4

P/P-ET 386 3.53(11.6) 1928 2

S/Al-TS 303 3.90(12.8) 1024

~

j

~

10 E/H-ET 83 1.49( 4.9) 145 I

_ 11 E/H-L 99 1.53( 5.0) 81 12 E/H-LS 230 3.10(10.2) 1427 II EXTINGUISHMENT TESTS 5

P/P-ET 95 3.73(12.2) 612 6

P/P-ET 159 3.32(10.9) 759 7

P/P-ET 193 2.79( 9.2) 1114

~

8 P/P-ET 311 4.80(15.7) 1665 9

S/A2-ET 25 1.04( 3.4) 80 13 E/H-LS 173 2.03( 6.7) 593 i

14 E/H-LS 83 1.25( 4.1) 181 1

  • The value' indicated in this column is only an estimate of the actual convec-tive heat release rate and is suitable for use in a relative study of fire intensity.

It is not intended to be used in studies that require an exact value.

1 l

(

5-3 l

____________a

Calculation # N N, Revision # [

has~been independently verified by the following method (s), as noted below:

)

Design Review ncluding verification that:

Design inputs were correctly selected and included in the calculation.

1 Assumptions are adequately described and are reasonable.

Input or assumptions requiring confirmation are identified, and if any exist, the calculation has been identified as " Preliminary" and'a l

l

" Finalization Due Date" has been specified.

i i

Design requirements from applicable codes, standards and regulatory l

documents are identified and reflected in the design.

l Applicable construction and operating experience was considered in the design.

The calculation number has been properly obtained and entered.

l I

An appropriate design method or computer code was used.

A mathematical check has been performed.

The output is reasonable compared to the input.

Alternate Calculation _ including verification of asterisked items noted above.

The alternate calculation (

pages) is attached.

l l

Qualification Testing _ for design feature including verification of asterisked items noted above and the following:

The test was performed in accordance with written test procedures.

l Most adverse design conditions were used in the test.

Scaling laws were established and verif.ied and error analyses were performed, if applicable.

Test acceptance criteria were clearly related to the design calculation.

Test results (documented in'

) were reviewed by the calculation Preparer or other cognizant engineer

. o ^ wd hd Independent Verifier Comments:

cowch a b o ou_.cews M N MYA

/2+u2 Ancht.c.

/

(

(#

See NED Procedure 3.05, Sec. 7.1.1

/s/

7 2/1r7 Independent'Vefi4ier Date Preparer concurrence with findings and comment resolu-

/s/

a.

tion Preparer or othe O 6

date cognizant engineer Exhibit 3.05-Q Rev. 8

-

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