ROW Clearing and Maintenance Procedure

OBJECTIVE

To create a procedure that will establish and maintain JPEC right-of-way that is required for all new and existing primary distribution lines. 

 


PURPOSE

In order to construct and maintain a reliable electric supply, JPEC has established a four (4) year right-of-way schedule (trim cycle) for nearly 1900 miles of primary lines.Right-of-way clearing and maintenance consists of cutting, trimming, mowing and herbicide program.This procedure for tree clearances apply at the time of pruning and clearing and are intended to protect the wires under normal operating conditions.

 

 

RIGHT-OF- CLEARING STANDARDS

  1. Right-of-Way shall be a minimum of forty (40) feet wide for three phase power lines and thirty (30) feet wide for single phase lines.
  2. Effective tree clearance for line reliability is dependent on the type of tree, its growth rate and habit.
  3. Trimming for On‑Right-of-Way Trees –
    1. Clearance shall be accomplished by ground cutting and removing all tall-growing tree species, shrubs, brush, vines, etc. from within the right-of-way.  Low growth tree species, shrubs, brush, vines, etc. that will not exceed the height of the communication lines, without  trimming, may be allowed to remain if the vegetation does not pose a hazard to JPEC employees or equipment in the construction and/or maintenance of JPEC facilities. 
    2. Where trimming of residential or landscape trees become necessary, trees shall be trimmed to provide a minimum of four (4) years of clearance. 
    3. Trees shall be trimmed ground-to-sky with arboricultural approved trimming methods.  One such method is ANSI A300 which is published by the Tree Care Industry Association (TCIA).  
    4. Special clearances may be needed at times because of field conditions. Additional allowance should be made for wires with excess sag.
  4. Trimming Along Distribution Right-Of-Way Edge or Off‑Right-Of-Way Trees –
    1. Trees shall be trimmed ground-to-sky with arboricultural approved trimming methods as referenced in ANSI A300. To the extent practicable, these limbs shall be trimmed back to the trunk of the tree.  
    2. JPEC shall work with property owners in the removal of danger trees.  A danger tree is any tree that is off the right-of-way that, due to decay, leaning toward the line, or is exhibiting other abnormal characteristics, could fall and come into contact with supply lines.
  5. Shaping or rounding-over trees beyond what is described in ANSI A300 to achieve the desired conductor/vegetation clearance shall not be performed.
  6. Only trees that are directly involved with JPEC’s overhead lines, as defined by this procedure shall be trimmed. Trimming trees for privately owned lines, other utility lines, or consumer lines or wiring is not permitted.
  7. JPEC shall disconnect and remove a member’s secondary or service wire if the member wishes to remove a tree that has the potential of falling onto the line.
  8. JPEC shall not trim trees solely for area lighting illumination.
  9. All low growing desirable species, if present, may be left unless:
    1. they create clearance problems,
    2. mechanical, non‑selective equipment (e.g. mowing) is used, or
    3. they block access to the rights‑of‑way or prevent facilities maintenance.
  10. All stumps from manual clearing operations shall be treated with herbicides approved by JPEC to prevent re-growth.
  11. Special conditions may exist where JPEC or its representative shall work with a member to produce the most desirable outcome.
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