When the HRC method is used the arc flash warning label is to include the highest hazard/risk category (HRC) for the equipment. Items 130.5(C)(1)a through c do not apply. They are only applicable when the incident energy (calculation) method is used.
Wool s natural ability to absorb and transmit water vapor is of unique importance in maintaining Thermophysiological Comfort, a state in which the individual is free from thermal strain. The Humanitarian Blanket provides the necessary requirements for emergency and humanitarian relief situations.
So even when wool is sopping wet-- so wet you can wring it out-- there are still insulating air pockets inside the fibre doing their best to help keep you warm. The water cannot get into the interior of the fibre. Wet wool is not full of water -- that is the major and important difference. Wool is like a wetsuit. The closed-cell neoprene can be very wet inside and out, but the insulating air pockets are protected and still working to minimize heat transfer and heat loss.