scope:

This International Standard specifies the requirements for grading, test methods, determination of characteristic values, methods of specifying durability and sizes of single poles manufactured from solid timber for telecommunications and electrical distribution purposes, either preservative treated or untreated, under cantilever or compression loading.

It specifies the:

- methods of measuring the sizes of solid wood poles for overhead transmission and telecommunication lines and permissible deviations that are taken into account for the acceptance of the poles;

- requirements for handling and the characteristics for visual strength grading of softwood and hardwood poles, as well as the marking requirements;

- methods of test to determine characteristic values for modulus of elasticity and bending strength of any population of wood poles and moisture content of solid wood poles;

- requirements for durability and preservative treatment of wood poles.

This International Standard is applicable to both softwood and hardwood poles.

This International Standard does not quantify the service life that can be expected from a pole.

NOTE This depends on its geographical location, the associated climate of its service environment and either the natural durability of the heartwood of the species selected or the combination between selection of species, preservative type, and requirements of retention and any incised zones.

It is not applicable to poles used as beams.