Listener, the safety standard that they violate is the lack of a durable insulating jacket over their power leads. Their power products have leads that are nothing more than thinly enameled conductors twisted around one another inside a plastic film (which I jokingly refer to as "saran wrap".)
Several audiophiles have experienced tearing of this film, and report that it's very easily damaged. The thin plastic film and thin layer of enamel are expected to insulate 15a of current - as compared to the more durable teflon or plastic casings used in almost all other power cord designs. If the Mapleshade's plastic film is torn, which is commonly reported, and the enamel is nicked, you have bare copper exposed, carrying wall current. This is easier to achieve with these flimsy products than it is with more robust power products (ie. almost everything else.)
Extreme sports indeed. While they can be used with care, I caution anyone against using a power product that doesn't feature a properly and safely insulated cord.
