What is the maximum height of the tapping rail on safety railings surrounding open excavations?

The standard for safety railings surrounding open excavations typically specifies that the maximum height of the tapping rail should be 350 mm from the surface level. This height is established to ensure that individuals working or walking near the excavation can easily identify the edge of the excavation while still providing adequate safety. The tapping rail serves as a vital safety feature, marking the boundary and helping to prevent accidental falls. Ensuring this specific height allows for an effective balance between visibility and safety, which is crucial in construction and excavation environments.