Equipment To Be Installed Above Finish Floor Elevation

Equipment mounted on an exte rior wall e g an electric meter incoming electric telephone and cable television lines usually can be mounted higher up on the same wall.

Equipment to be installed above finish floor elevation.

Once the finish floor elevation is established the other project elevations are based off the finish floor. The electrical equipment itself may have a height that is less than 6 1 2 feet but if it is mounted so the top of the equipment is higher than 6 1 2 feet the minimum working space height shall be the equipment height. The finish floor is then considered ff 0 0. Equipment typically placed on the ground e g.

An attached garage floor elevation below the bfe can be excluded as the lowest floor for rating if the garage has no machinery or equipment below the bfe. Typical usage is no component of a hanging light fixture to extend below 7 0 a f f above finished floor. Reference plane as it s name implies is the top surface of the finished flooring material. With the letter a has an attached garage floor elevation at or above the base flood elevation bfe the garage floor may be excluded for rating.

That wall would be 16 feet 6 inches above the finish floor. Definition of aff above finish floor in construction abbreviation used on construction plans and contract documents to indicate an elevation above the finished floor. In an elevation view all vertical dimensions within a finished interior space would reference a f f. The work space shall be clear and extend from the grade floor or platform to a height of 6 1 2 feet or the height of the equipment whichever is greater.