Concrete floor smoothness for racking trollies
Concrete floor smoothness for racking trollies
(OP)
Dear all,
To specify an MV substation floor that will have rack-in switchgear (requiring a trolley), is there a standard or some quantifying method I can use for how smooth the surface is to be described?
Obviously I could write, "the floor surface shall be smooth" or "resin coating shall be applied to floor surface" but I would like to point to some objective reference.
Has anyone had switchgear prematurely wearing or being damaged from trollies on rough surfaces?
Cheers!
To specify an MV substation floor that will have rack-in switchgear (requiring a trolley), is there a standard or some quantifying method I can use for how smooth the surface is to be described?
Obviously I could write, "the floor surface shall be smooth" or "resin coating shall be applied to floor surface" but I would like to point to some objective reference.
Has anyone had switchgear prematurely wearing or being damaged from trollies on rough surfaces?
Cheers!
RE: Concrete floor smoothness for racking trollies
When using self-leveling concrete flooring you have to have tolerance of less than an 1/8 inch between several cells to have everything inserted smoothly.
I haven't seen many concrete or steel coatings that will stand up to steel circuit breaker wheels, supporting several hundred to 3400-pound breakers very long.
RE: Concrete floor smoothness for racking trollies
That said, in the buildings we use the switchgear is made by the same manufacturer as the building.
So, maybe ask the gear manufacturer what they recommend.