SAI AS 3818.4
SA AS 38184 2010-NOV-15 Tmber—Heavy structural products—Vsually graded Part 4 Cross-arms for overhead lnes
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This Standard sets out the minimum requirements for visual grading of cross-arms intended for use in supporting overhead utility services. These minimum requirements apply at the time of grading.
NOTES:
1 Purchasing guidelines are given in Appendix A.
2 Stress grades applicable to strength groups are given in Appendix B