norsok class 1 / norsok class 1 heat...
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NORSOK R004 (Edition 1 - 2009)
01
NORSOK CLASS 1
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NORSOK R004 (Edition 1 - 2009)
01
The purpose is to reduce heat losses and to maintain temperatures for the efficient operation of the process.
NORSOK CLASS 1 / Heat Conservation
The purpose is to maintain low temperature and control heat input in the process. NORSOK CLASS 2 / Cold medium Conservation
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NORSOK R004 (Edition 1 - 2009)
02
Surfaces with operating temperatures below -10 C0 or above 70 C0 and are confined to a distance of not more than 2,1 m vertically and 0,8 m horizontally away from walkways and normal workingareas shall be guarded by screens. Insulation shall only be used where guards are not practical.
NORSOK CLASS 3 / Personal protection
Insulation/heat tracing to prevent freezing, solidification and condensation.NORSOK CLASS 4 / Personal protection
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NORSOK R004 (Edition 1 - 2009)
03
NORSOK CLASS 5 / Fire proofingThe purpose is to reduce the heat input and limit the temperature to 400 C0 on piping, vessels andequipment in a hydrocarbon fire situation. Fire proofing according to any other fire scenarios shall be specified in each project.
Reduction of noise in the area 500-2000 Hz by 10 dB.NORSOK CLASS 6 V.1 / Acoustic insulation
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NORSOK R004 (Edition 1 - 2009)
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Reduction of noise in the area 500-2000 Hz by 20 dB.NORSOK CLASS 7 V.1 / Acoustic insulation
Reduction of noise in the area 500-2000 Hz by 30 dB.NORSOK CLASS 8 V.1 / Acoustic insulation
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NORSOK R004 (Edition 1 - 2009)
05
The purpose is to prevent condensation on piping and equipment with operation temperatures below ambient temperatures.
NORSOK CLASS 9 / External condensation and icing protection
Weather exposed area insulation box / Weather protected area insulation jacket