51
I N S TA L L AT I O N A N D O P ER AT I N G I N S T R U C T I O N S
—
ANNEX
Sample work instruction
Handling of uncontaminated SF
6
Works department:
Working area:
Responsible Person
Work Instruction
Work place:
Issue date:
Activity: Handling of uncontaminated SF
6
HAZARDOUS MATERIAL DESIGNATION
Sulphur Hexafluoride (SF
6
)
HAZARDS TO PERSONS AND THE ENVIRONMENT
Uncontaminated SF
6
is odourless, tasteless, colourless and non-toxic. It contains no contaminants which are harmful to
health. On contact with liquid SF
6
there is a risk of freeze burns.
SF
6
is approximately five times heavier than air, and can accumulate in low-lying spaces. If a large quantity escapes into the
working environment, SF
6
displaces the oxygen in the air people breathe (danger of asphyxiation). SF
6
is a greenhouse gas,
and emissions of SF
6
are therefore to be avoided.
PROTECTIVE MEASURES AND RULES OF BEHAVIOUR
Do not discharge SF
6
into the atmosphere.
Use an SF
6
servicing unit with .............................................. filler system.
Check the connections for gas-tightness.
Work which generates strong heat, e.g. welding, is prohibited.
Do not smoke, eat, drink or store foodstufs in the switchgear room.
Protect your hands: Wear protective gloves to avoid physical injury and contact with liquid gas.
PROTECTIVE ACTION AND RULES OF BEHAVIOUR
Leakage: Turn of the gas supply. Ensure that necks and connections are tight and ventilate the
room well with fresh air.
SF
6
does not burn, but fire will create decomposition products. Wear protective equipment when firefighting.
Move cylinders/equipment out of the hazard zone or cool them.
FIRST AID
For all first aid actions: Ensure that you yourself are adequately protected, and contact a doctor
immediately.
On inhalation: Provide fresh air immediately. Lay the person in an inclined position with the head
downwards, and if they have breathing problems ensure they receive medical treatment.
First Aid staff: ........................................................................ Emergency Tel.: ....................................................................
CORRECT DISPOSAL
Return to the manufacturer if necessary.
