Surface temperature category Safety distance mm
Category of furnace Surface
or component temperature ºC
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1) Single lightweight shields shorten the safety distance by 50% and double shields
by 75%.
2) The safety distance of cast iron hot plates is 1,000 mm.
3) Single lightweight shields shorten the safety distance by 25% and double shields
by 50%.
Glowing surface Over 350-600 1000
(1
1200
(3
1000
(1
Scalding surface Over 140-350 500
(1
600
(2
250
Hot surface Over 80-140 150 250 50
Warm surface Max. 80 50 150 -
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