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NORMA VENEZOLANACOVENIN 2254:1995
CALOR Y FRO. LMITESMAXIMOS PERMISIBLES DEEXPOSICION EN LUGARES
DE
TRABAJO. 1RA REVISI!N"
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1 OBJETO1.1 L#$ %&'()*$ '+,('#$ -*'($(/%*$ 0 %0$
*,-#$((#*$0% 0%# 3 0% (# * %#$ %60*$ 7* )0/08#.
1.2 E% ')#7# -00 %0 *0%0(; 7*% 0%# * *% %60 7*
)0/08# '*7(0)* *% &7(* TGB< )*'-*0)0 7* 6%#/# 37*% /%/#
=>'*7#".
1.? L#$ %&'()*$ 7* *,-#$((; 7(0(0 '+,('0 0% *$()0(#*$ 7*
)0/08#.
1.4 L0 *0%0(; 7*% **)# 7*% 0%# $#/* %0 -*$#0*,-*$)0 70)* -*(#7#
*-*$*)0)(# 7* $0)((707.
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DEFINICIONE
SNDICE DE TEMPERATURA DE GLOBO@ BULBO '*7# 0)0% 3/%/# $*#.
CALOR METAB!LICO CARGA TRMICA O METABOLICA": *$*% 0%# 6**07# -#
*% '*)0/#%($'# /0$0% '0$ *%
6**07# -# %0 0)((707 &$(0 70)* *% 7*$0#%%# 7*0%(*
)0/08#.
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TEMPERATURA DE GLOBO )6": *$ %0 )*'-*0)0 #/)*(70-# $*$# 7*
)*'-*0)0 #%#07# * *% *)# 7*0 *$*0 '*)+%(0 =*0 -()070 7* *6# '0)*
-00
0/$#/* %0 '03# 0)(707 -#$(/%* 7* %0 07(0(;(0#80 ((7*)*.
TEMPERATURA DE BULBO SECO )0": *$ %0 )*'-*0)0
'*7(70 -# $*$# #%#07# 7(*)0'*)* # *%'*7(# 0'/(*)*.
TEMPERATURA DE BULBO
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TRABAJO LIVIANO 1 A 2 CAL": )0/08# '00% %(6*#*$(/(@ 7(/80" @
)0/08# # *% /0# 3 %0
'0#=*0'(*)0$ -**0$@ *$0'/%08*" @ )0/080 #*% /0# 3 %0 -(*0'0*80
*=&%#".
TRABAJO MODERADO 2 A ?5CAL": )0/08# #)(#
# *% /0# 3 %0 '0# '0)(%%0 0%#$@ %('0"@ )0/08# 7*/0# 3 -(*0#-*0
)0)#*$"@ )0/08# 7* )#$# 3/0# 7*$'0%*0@ )0/080 # 007;@ #-*0 #'0)(%%#
*'+)(#@ *'-80 # =0%0 0*)(%%0$".
TRABAJO PESADO ?5 A 5CAL": )0/08# ()*$# 7*)#$# 3 /0# 060 '0)*(0%
-*$07#@ -0%*0@ )0/080 #0 '070(0@ $*=0@ )0/080 # =0=0@ #%#0%07(%%#$
7* #*)#".
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VALORES LIMITES MAXIMOS DE TIEMPO PARAEXPOSICION DIARIA AL
FRIO.
A H1C $( %&'()* -00 0 -*$#0 07*070'*)*-#)*6(70.
H1 0 H?4 4 =#0$@ 0%)*07# 0 =#0 7*)# 3 0=#0 *0 7*% +*0 0 /080
)*'-*0)0.
H?4 0 H5K 2 -*(#7#$ 7* ? '()#$ 070 #@ #()*0%#$ 7* 4 =#0$H5K 0
HK?. T(*'-# )#)0% -*'()(7# 1
=#0.
H5K 0 HK? )(*'-# '+,('# -*'($(/%* 7* )0/08# 5'()#$ 70)* 7&0
7* =#0$
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VALORES LIMITES DIARIOS DE EXPOSICION AL CALOR.
K5 )0/08#
25 7*$0$#@ =#0.
L((0# ?M#7*07# 2.K
P*$07# 25
5 )0/08#5 7*$0$# =#0
L((0# ?1.4M#7*07# 29.4P*$07# 2K.9
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25 )0/08#K5 7*$0$#
L((0# ?2.2M#7*07# ?1.1
P*$07# ?
