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Trees should be trimmed to the extent that this designated minimum clearance area will be kept free of new tree growth until the next scheduled trinuning cycle. If the trimming cycle is _ other than three years, as may be needed for fast growing tree species or where limited trimming is permitted by the tree owner, appropriate records need to be maintained to insure timely trimming is accomplished. Intrusion of limited small branches and new tree growth into this minimum clearance area can be tolerated so long as it does not contribute to a safety hazard to a person climbing the tree or cause interference with the conductors. c. Secondary and/or service conductors (600 volts and below) should have at least 1 —foot clearance. While extensive tree trimming or tree removal relating to these services is not expected, proper consideration must be given to possible conductor damage and service outages caused by trees, and appropriate measures taken. B. Tree removal. Whenever justified, tree removal should be encouraged. Trees should be removed under the following conditions: 1. Trees located in schoolyards, playgrounds, parks, backlot construction areas, or other areas and which children may climb easily and contact overhead conductors. 2. Trees that have been topped under low —level primary and transmission circuits with no chance for a reasonable, natural development. 3. Trees that are unsightly because of excessive trinuning and cannot be economically retrimmed. 4. Trees in rural areas along county roads and state highways which would eventually reach a primary or transmission line. 5. Fast growing tree species located in suburban and urban areas, near homes or in landscaped areas which will eventually trow into transmission or distribution lines. 6. Trees, both live and dead, which are leaning toward the line and which would strike the line when falling. (Rev. 1/87)