36.6kV. Made of high-impact orange ABS plastic, this cover is used to help prevent tie wires from making contact with the pole when tying or untying ridge construction. The cover will fit a pole top of up to 10 inches diameter with either single or double-ridge pin construction. The maximum bolt length is 16 inches. The cover rests on top of the pole, covering 10.5 inches of the pole top and 4.5 inches of the ridge pin. By using the elastic cord furnished with the cover, the cover-up can be butted against the insulator to cover the ridge pin and pole top.