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3.2
Safety Precautions When Handling Used SF
WARNING
REV6
/REV3
SF
gas used in electrical equipment may contain decomposition
6
products with toxic properties if it has been subjected to arcs. The-
se decomposition products may exist in either a gaseous state or in
the form of a powder.
Even small amounts of gaseous decomposition products give off
warning signals (such as unpleasant pungent odors or irritation of
nose, mouth and eyes), which allow people to escape in time to a
safe location. Decomposition products in powder form irritate the
skin.
- Do not eat, drink, smoke or store food in rooms containing SF
systems or equipment.
- Make sure there is good room ventilation when servicing SF
switchgear (evacuating, filling, opening or cleaning the units).
- When carrying out procedures involving SF
ponents, always wear safety goggles, leather gloves and ap-
propriate work clothes in order to prevent frostbite resulting
from accidentally released gas.
- Do not stir up powdery decomposition products.
- Remove powdery decomposition products using an industrial
vacuum cleaner equipped with a filter. The industrial vacuum
cleaner must comply at a minimum with the specifications for
dust class L (light).
- Avoid skin contact with, swallowing or inhaling powdery
decomposition products by complying with the following rules:
- Wear appropriate protective respiratory equipment such as a
full-face respirator (gas mask) or a respirator and gas-tight
safety goggles.
- Wear a dustproof protective suit (disposable suit).
- Wear rubber gloves or disposable gloves.
- Wear rubber boots or disposable boots.
- After work is completed, wash the respirator, safety goggles
and rubber gloves with water. Collect the water and dispose
of it separately.
- After work is completed, wash your entire body thoroughly
with soap and plenty of water.
Contaminated materials such as
- solid decomposition products,
- used drying agents,
- vacuum cleaner bags containing powdery decomposition pro-
ducts,
- or disposable protective clothing
must be neutralized and disposed of in accordance with the
guidelines defined in IEC 62271-4 and local regulations.
OI 248 (EN)
H
S
ANDLING
ULFUR
6
H
EXAFLUORIDE
6
6
-filled com-
6
15
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