The cables stretch 1300m (4,500 ft) across the River Thames and have a minimum clearance of 76 m (250 ft).

However, the minimum vertical clearance, due to the arch curvature was really (18 ft. 2 in.)

Top Secret was the minimum clearance allowed on the premises.

The minimum clearance was a little less than a metre.

Since overhead transmission wires depend on air for insulation, design of these lines requires minimum clearances to be observed to maintain safety.

A minimum overhead clearance must be maintained for safety.

In general, a minimum clearance of four to eight inches is often needed between the lowest obstruction and the level of the ceiling grid.

The minimum clearance between the hole and the shaft will then be 0.001 mm.

They don't seem to be able to depress to ground level-I make the minimum clearance at about a meter.

These restrictions governed minimum span widths over channels and minimum clearances.