| 摘要 |
A spacer device includes an elongate spacing member extending a longitudinal axis for securing to electrical transmission lines, and has a minimum thickness dm. At least one thickened portion having a thickness Tt and length dt is positioned intermediate along the spacing member to form at least two column lengths Lc separated by the at least one thickened portion. Each column length Lc has a portion with the minimum thickness dm. The thickness Tt and length dt of the at least one thickened portion can be at least two times the minimum thickness dm to form at least one end support for the at least two column lengths Lc, such the at least two column lengths Lc behave as separate Euler type columns for producing increased Euler buckling strength with a minimal increase in weight. |
