Arc Flash Boundary (ARC) - is the distance at which an electrical arc can flash. outward, which may endanger employees working on electrical equipment. Flash Protection Boundary (FPB) - theJcalculated safe working distance from. electrical equipment which would not expose the employee to the hazards.
Weight Reduction. All fresh foods contain water, which is its main source of weight (fruits are more than 80 to 90% water). However, during drying about 98% of the moisture in the food substance is removed, which reduces the weight by as much as 90%, making it lighter to carry backpacking. Aside from freeze-dryingâs use in backpacking and camping, the military also freeze-dries foods to make it easier for one person to carry large amounts.
Dehydration, or drying, is a simple, low-co~:way to preserve. food that might otherwise spoil. Drying removes water and -thus. prevents fermentation or the growth of molds. It also slows the. chemical changes that take place naturally in foods~ as when. fruit ripens. Surplus grain, vegetables, and fruIt pre$erved by. drying can be stored for future use. People have been drying food for thousands of years by placing. the food on mats in the sun. This simple method, however, allows. the food to be contaminated by dust, airborne molds and fungi, insects, rodents, and other animals.