5028 Electrical Safety (safety) Flashcards
Who is responsible for maintaining this
document.
The Assistant Chief of Administration
Define
kv (Kilovolt)
A unit of voltage equal to 1000 volts, e.g., 50 kv = 50,000 volts.
Define
Low Voltage Line
Electrical line rated at 750 volts or less.
Define
Mast
Vertical pipe that serves as conduit for electrical service wires.
Define
One-Span Rule
The length of the span between two poles or towers is the minimum clearance to maintain in all directions from downed wires or a damaged pole.
Only utility company personnel shall
cut electrical wire drip loops, open
transformers, or pull power meters.
Maintain the following distances between aerial equipment and energized electrical lines
i. At least ten feet from energized electrical lines rated up to 50 kv
ii. At least ten feet plus 0.4 inches for each 1 kv from energized electrical lines rated above 50 kv
For field use, TFD personnel shall maintain a distance of
ten feet plus one foot for each insulator skirt between electrical lines rated above 50 kv and aerial equipment.
a. This distance from lines shall also be maintained between firefighters using the aerial and their tools.
For low voltage lines, TFD personnel shall
keep aerial equipment far enough away from the lines to prevent firefighters from contacting the energized conductor.
In-line GFCI protection is required for
a. Use of watervacs.
b. Use of temporary lighting in moist or hazardous conditions.
Use of electrical equipment:
TFD personnel shall
a. Use sump pumps to remove water only from areas that have been de-energized.
b. Lower sump pumps on a rope.
c. Remove portable generators from apparatus and set them on the ground before using.
d. Use only extension cords rated at a minimum of 20 amps.
If water is necessary, maintain a minimum distance of
20 feet and use fog streams, not solid streams.
For FOR DISMOUNTING A STATIONARY APPARATUS OR
VEHICLE IN CONTACT WITH OR ABOUT TO BE IN CONTACT WITH
AN ENERGIZED CONDUCTOR:
TFD personnel shall
- Dismount by jumping clear with both feet together.
- Do not use handrails or grab bars.
- Do not maintain contact at any time with both the apparatus or vehicle and the ground simultaneously.
What policy number is
Electrical Safety
5028
Safety
For fires in electrical substations or vaults, it is required that
TFD wait for the electrical equipment to be de-energized and for authorization from TPU.
