Aŋe si kɔa nu si ƒe amadede megale o la nye nusi wokpɔna zi geɖe le dɔwɔƒewo. Rigger geɖe bia wo ɖokui be: ɖe wògakpɔtɔ le dedie be woazãea? Ŋuɖoɖo kpuia—le dɔwɔƒewo ƒe dzidzenuwo nu—ye nye ao. Amadede ƒe vɔvɔ nye nusi woate ŋu akpɔ be ultraviolet (UV) ƒe gbegblẽ, si naa ka siwo wowɔ la gbɔdzɔna eye wògblẽa nu le ʋuƒoa ƒe agbatsɔtsɔ ŋu. Mɔfiame sia dzro nusi amadede si fa miamiamia fia na aŋetu ƒe dedienɔnɔ, alesi woade vovototo UV ƒe nugbegblẽ kple amadede ƒe tɔtrɔ ƒomevi bubuwo dome, kple dzudzɔxɔxɔledɔme ƒe dzidzenu tɔxɛ siwo wogblɔ le ASME B30.9 kple Washington Administrative Code (WAC) ƒe sededewo me. Le rigging dzikpɔlawo kple dedienɔnɔ ŋuti nunyalawo gome la, nusi aŋe si fa la fia gɔmesese le vevie be woaxe mɔ ɖe kpododonu si gblẽa nu le ame ŋu nu.