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A device which is termed "intrinsically safe" has been designed to be incapable of producing heat or spark sufficient to ignite an explosive atmosphere, even if the device has experienced deterioration or has been damaged. There are several considerations in designing intrinsically safe electronics devices:
A child harness (alternative: child tether, walking harness, British English: walking reins) is a safety device sometimes worn by children when walking with a parent or carer. Child harnesses are most commonly used with toddlers and children of preschool age, though they may also be used with older children, especially if they have special ...
Childproofing (also called baby proofing) is the act of making an environment or object safe for children. This reduces risks to a level considered acceptable by a society, an institution, or to specific parents. Childproofing may include restriction of children to safe areas or preventing children from reaching unsafe areas.
The devices will draw less current to represent a high signal (1, one) and draw more current to represent a low signal (0, zero). As the modulating current of the FF devices is between 15 mA and 20 mA peak to peak, while the modulating voltage in the bus caused by this modulating current is between 0.75 V and 1 V peak to peak.
By enabling users to care for a virtual pet, the pocket-sized devices mimicked all the responsibilities of real pet ownership, including feeding, cleaning, and playing with their pixelated companions.
Equipment can be designed or modified for safe operation in hazardous locations. The two general approaches are: Intrinsic safety Intrinsic safety, also called non-incendive, limits the energy present in a system, such that it is insufficient to ignite a hazardous atmosphere under any conditions. This includes both low power levels, and low ...