Research for the Universal Handcart Platform Which Width and Hight are Adjustable

Now 10kV centrally installed switchgears are used in many substations.When the switchgears are poweroff, the electricity test handcart and grounding handcart will be used.So the handcart platform is equipped in the substation.Now the handcart platform used for electricity test and grounding is provided by the switchgear manufacture inWuwei Power Supply Company.These platforms are so many and different in size.So if the handcart platform's width and hight are adjustable, one handcart in each substation is enough.This kind of handcart is easy to operate and save time and effort.