Diseno de Cuartos Electricos Nfpa 70e

8/9/2019 Diseno de Cuartos Electricos Nfpa 70e

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Electrical Systems: Designing electrical

rooms

Join the discussion about this Webcast on Twitter at #CSEelectricalroom

Sponsored by:



Brian Martin, PE, Portland Electrical Department Manager

CH2M Hill

Portland, Ore.

Brian Rener, PE, LEED AP, Associate

Smithgrop!!R,

Chicago, "ll.

Moderator# !ac$ Smith,

Consulting-Specifying Engineer and Pure Power ,

C%E Media, LLC

Presenters#



Electrical Systems: Designing

electrical rooms

Brian Martin, PE, Portland Electrical

Department Manager

CH2M Hill

Portland, Ore.


Smithgrop!!R ,

Chicago, "ll.



Presentation scope

& '%PA () *'EC+ 2)-

& "nternational Bilding Code *"BC+

& )) A and A/o0e& Primar1 ser0ices

& 'o haardos locations

& 3ood engineering practices

http://www.nfpa.org/codes-and-standards/document-information-pages?mode=code&code=70

http://www.iccsafe.org/Pages/default.aspx





Electrical room design

& 'eeds a coordinated team#

& Electricals

& Architects

& Strctral

& Mechanicals

& %ire protection



Room t1pes& Primar1 ser0ice rooms

& Electrical rooms

& 4PS or /atter1 rooms& 3enerator rooms

& Compter rooms

& 4tilit1 0alts



Design isses

& 5or$ing 0s. dedicated spaces

& Dedicated spaces and 6oreign s1stems

& %ire protection

& %ire ratings

& 7entilation

& Strctral

& Bilding occpanc1& Lighting



5or$ing 0s. dedicated spaces

& Di66erent spaces

8 5or$er 0s. e9ipment



5or$ing space

& Applies to# 8 :E9ipment operating at ;)) 7, nominal, or less, to grond

and li$el1 to re9ire e<amination, ad=stment, ser0icing, or

maintenance >hile energied.? 'EC Article ).2;*A+

& S>itch/oards& S>itchgear *Added in 2)-+

& Motor control centers

& Panel/oards

&Disconnect s>itches& Circit /rea$ers

& Controllers

& Controls 6or H7AC e9ipment

& @rans6ormers sometimes 6all into this categor1



5or$ing space# ta/le



5or$ing space# ele0ations



'onelectrical parts

:5here rear access is

re9ired to work on

nonelectrical parts on the/ac$ o6 enclosed

e9ipment, a minimm

horiontal >or$ing space

o6 ) in. shall /e

pro0ided.? 'EC Article

).2;*A+*+a



Dedicated spaces& Applies to#

& :All s>itch/oards, s>itchgear, panel/oards, and

motor control centers shall /e located in dedicated

spaces and protected 6rom damage.? 'EC Article).2;*E+

& S>itch/oards

& S>itchgear *Added in 2)-+

& Panel/oards& Motor control centers



Dedicated spaces and 6oreign s1stems& Can 1o ha0e 6oreign

s1stems *mechanicaldcts andor plm/ing+

in 1or electrical room 8 es and no

& 4nderstand dedicatedspace



%oreign s1stems *MP+

& 'EC# a/o0e, i6 protected

& 5hat a/ot sprin$lers& 'EC# o$a1 in dedicated space



2)- 'EC change& Otdoor spaces

8 'e> re9irement no> calls

6or the same /asic

dedicated e9ipment or

electrical space 6or otdoorinstallations that has /een

in e66ect 6or indoor

installations

8 @his space a/o0e and/elo> the electrical

e9ipment shold /e

dedicated



Primar1 e9ipment

& S>itch/oard 0s. s>itchgear

& S>itch/oards# 4L

8 %ront access

8 Rear access

8 Primaril1 6i<ed monted

http://ulstandardsinfonet.ul.com/tocs/tocs.asp?fn=0891.toc




Primar1 e9ipment

& S>itch/oard 7s S>itchgear

& S>itchgear F A'S" C(

8 Rear Access

8 Primaril1 Dra>ot Constrction

http://webstore.ansi.org/RecordDetail.aspx?sku=ANSI/IEEE+C37.20.1-2002




Access

& 2)) amps G ; 6eet in >idth

8 @>o doors on opposite ends

8 Doors ; 2 < 2-?

8 One door i6 >or$ing clearancedo/led

8 Doors S>ing Ot

& )) A *'e> to 'EC 2)-+ 8 Listed Panic Hard>are on Doors



Access# plan e<amples



Be1ond 'EC# >or$ing space and access& Doors# at least ; in. >ide or do/le ; in., 6t. high

& Access to dra>ot de0ices

& 5old 1o >ant to >or$ in onl1 I 6t

& Brea$er trc$ access

& '%PA ()E# Standard 6or Electrical Sa6et1 in the 5or$place F arc 6lash ones

& Arc 6lash gear, 0enting& Height a/o0e s>itch/oards

& Space planning# >or$ >ith 1or architect







%ire protection

& Sprin$lers

8 '%PA # 1es, or 2 hr rating

8 Some cities# preaction

& %ire detection

8 Smo$e detectors in electrical rooms

8 Recommend heat and 6lame detection in generatorrooms



%ire ratings

& Do electrical rooms need to /e 6ire rated 8 'EC

& 'ot i6 sprin$lered

8 5hat a/ot dr1 t1pe trans6ormers& 2.J $7A, JJ C or higher inslation

& Emergenc1 s1stems *'EC Article ())+

8 'EC high rise or high occpanc1& Appro0ed 6ire sppression

& 2Fhr s1stems



%ire ratings

& '%PA )

8 EPS installed in a separate room 6or Le0el s1stems

8 Room mst ha0e a 2Fhr rating

& Kno> 1or local codes

8 E<ample# Cit1 o6 Chicago& 3enerator room rating# hr

& %el storage# JJ)Fgal limit& 'ot located more 2 6loors p or do>n 6rom grade.

& "nsrance carrier re9irements





7entilation

& Re9ired& 3eneral rating o6 e9ipment# )- %& Recommend# ; %

& Electrical rooms 8 5ithot trans6ormer# c6ms9. 6t. 8 5ith trans6ormer# .) to 2.) o6 $7A * c6m$7A+

& 3enerator rooms 8 Cooling 0s. com/stion air

8 A6ter engine shts do>n 8 Remote radiator 8 2,J)) Bthr$7A



7entilation

& Batter14PS rooms 8 Keep temperatre arond (( %

8 5hat a/ot h1drogen

& %looded *0ented+ /atteries

& 7al0e reglated, sealed

& Con6licting codes# 'EC, 4%C, "%C

8 Sa6e rles

& c6ms9. 6t.& %an 6ailre rela1



Strctral

& O6ten o0erloo$ed 8 S>itch/oards and s>itchgear

8 3enerators

8 7i/ration isolation 8 Compter rooms

8 Raised 6loors

8 Miscellaneos

& Pads& Penetrations

& %ire sealing

& Path o6 deli0er1



Lighting& Recommended lighting le0els

8 "ES and '%PA ()E# ) 6ootFcandles

& Emergenc1 lighting 8 6ootFcandle is not enogh

& S>itching

8 Mst inclde nonatomatic means

https://www.ies.org/




Miscellaneos room isses

& EM"

& 'oise



Codes and Standards Re6erences 6rom

@oda1s 5e/cast

& '%PA () *'EC+ 2)-

& "nternational Bilding Code *"BC+

& 4L & A'S" C(

& '%PA ()E# Standard 6or Electrical Sa6et1 in the 5or$pla

ce

& '%PA )& "ES



















Brian Martin, PE, Portland Electrical Department Manager

CH2M Hill

Portland, Ore.


Smithgrop!!R,

Chicago, "ll.

Moderator# !ac$ Smith,

Consulting-Specifying Engineer and Pure Power ,

C%E Media, LLC

Presenters#



5e/casts and Research

& Smart Electrical S1stems# Meters, s/meters an

d smart meters

& 2) Electrical and Po>er std1

http://www.csemag.com/media-library/webcasts/2013-webcasts/62013-webcast.html


http://www.csemag.com/single-article/electrical-power-study-released/57061bcbecadd766dbfce0dae9b40ce2.html

http://www.csemag.com/single-article/electrical-power-study-released/57061bcbecadd766dbfce0dae9b40ce2.html





Electrical Systems: Designing electrical

rooms

Join the discussion about this Webcast on Twitter at #CSEelectricalroom

Sponsored by:

Diseno de Cuartos Electricos Nfpa 70e

Documents

Transcript of Diseno de Cuartos Electricos Nfpa 70e