Miscellaneous Flashcards
What do you do after downed wires are secured by the tree crew?
Call Utility Dispatcher
What is the most common tool used during roadside pruning?
Hand Saw
Negatives of Pollarding?
Quick growing sprouts with weak attachments
Benefit of cutting laterals back to 1/3 size of limbs?
Less sprout growth
What determines if overhanging branches are left?
Species and Climate
What type of sprouts grow from lateral buds?
Adventitious
Trimming Cycles should be based on:
Growth rate and Geographic area
Back Feed definition
from house to transformer, often from a generator
Describe Aerial Spraying
rotating wing/fixed wing and cheaper
Voltage=
PSI
Ohm=
resistance
Ampere =
gallons of water/ measure of electrical current
Minimum Approach Distance
10 feet
Easement
Gives utility use of the property
Transmission lines are regulated by:
Federal
For every complaint called in there could be:
up to 5
Negatives of mechanical
streams
Examples of biological controls
plants,birds,animals
What is not affected when removing leaves?
Trunk taper
Negatives of removing trees on border zone
taper, sunscald
Direct Contact
phase to you
Phase to Ground fault
phase to tree to you
Negative of high density spraying with low foliar
money and coverage
Are circuit maps standard
No
Are symbols on circuit maps internationally recognized
yes
What type of treatment for 60ft pole to ground clearance
chemical
How is toxicity measures
LD50
Dicambe
selective maintenance
Glysophate
non-selective
_______ to control drift
Adjuvants
When is the only time a utility does minimum clearance?
cost
14.4kv Circuit =
Y grid
