Inspection of Wooden Poles in Electrical Power Distribution Networks in Artvin, Turkey

Table 2

Micro Hammer inspection results.

Location	Number of poles inspected	Velocity (m/s)		Number of sound poles^*	Number of early stage decayed/damaged poles^**	Number of decayed/damaged poles^***
		Average	Std.
Area I	30	1710	360.7	9	15	6
Area II	30	2050	312.8	17	10	3
Area III	30	1911	264.5	13	14	3
Area IV	30	2230	463.3	20	8	2

Velocity higher than 1500 m/s.
Velocity lower than 1500 m/s and higher than 1200 m/s.
Velocity lower than 1200 m/s.