Obstruction Marking Sphere Installation

Installation

1. Take out the marking spheres from box. The half with insulated strips is lower hemisphere and the other is the upper one.

Each box generally packs three sets of marking spheres. Match one complete set of the marking sphere with the same number (eg: Number"2") printed on clamp.

2. Install preformed armor rods to conductor, make sure wrapping armor rods have the same direction with conductors.

3. Fix the lower hemisphere to the power line: tie up insulated strips on the power line, make sure the conductor with armor rods can right attach with clamp slots. Make sure the armor rods out of clamps on both sides with equal length which is about 20-30 cm.

4. Assemble the upper half with the lower half. In order to make sure groove and comb fit perfectly, please align clamp printed with the same number (eg: Number"2") on one side of each half.

5. Insert hex bolts, hex nuts, flat washers, spring washers into cable clamps on both sides.

6. Use suitable adjustable wrench to fix hex nuts.

Obstruction marking spheres installation note

The spacing between two consecutive marking spheres or between a marking sphere and a supporting tower should be appropriate to the diameter of the marking sphere.

The maximum spacing is 30 m with sphere's diameter is 600 mm.

The maximum spacing is 35 m with sphere's diameter is 800 mm.

The maximum spacing is 45 m with sphere's diameter is 1300 mm.

If multiple wires or cables are involved, marking sphere should be located in the highest wire.

When installed, different colors' marking spheres should be displayed alternately. The color selected should contrast with the background to ensure marking spheres will be seen clearly.

Obstruction marking spheres should alternate aviation orange, white, yellow, with aviation orange markers positioned at each end.

If less than four markers are on the line, all markers should be aviation orange.