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SAFERING XT/SAFEPLUS XT
Sample work instruction
Handling of contaminated SF
6
Works department:
Working area:
Responsible Person
Work Instruction
Work place:
Issue date:
Activity: Handling of contaminated SF
6
HAZARDOUS MATERIAL DESIGNATION
Sulphur hexafluoride (SF
6
) with decomposition products (contaminated SF
6
) SF
6
in electrical systems may contain
decomposition products - gaseous Sulphur fluorides and Sulphur oxyfluorides, solid (dust-form) metal fluorides, oxides,
hydrofluorides and Sulphur dioxide - as a result of arcing effects.
HAZARDS TO PERSONS AND THE ENVIRONMENT
- Decomposition products can be toxic or hazardous to health on inhalation, swallowing or contact with
the skin or eyes. They can irritate the respiratory organs or skin or cause-acid burns. On inhalation of
large quantities there is a risk of lung damage (pulmonary oedema) which may only become apparent at a
much later date.
- On escape of gas. there is a danger of asphyxiation due to displacement of oxygen, especially at floor
level and in deeper spaces.
PROTECTIVE MEASURES AND RULES OF BEHAVIOUR
Filling, emptying or evacuation of SF. systems.
- Check the condition of the SF
6
(e.g. humdity, proportion of air, decomposition products). - Do not
discharge SF
6
, into the atmosphere. Use servicing and check the connection for tightness after
connecting.
- Only channel contaminated SF
6
, into marked SF
6
pressure vessels.
- Work generating strong/heat and smoking are prohibited in the system room.
Opening of and working on or in opened SF
6
, gas compartments (additional measures; please complete
and delete where not applicable)
- Only open SF
6
, gas compartments after complete empyting and equilization with atmospheric pressure.
- Use personal protective equipment:
Protective gloves, acid resistent Disposable goggles
Protective overalls with hood Skin protection
Breathing mask(fiber or closed circuit type) Helmet
- Remove dust with industrial vaccum cleaner
- Remove adhering decomposition products with
- Before breaks and after work, thoroughly clean the face, neck arms and hands with large amounts of water.
- Do not store foodstuff or smoke, eat or drink in the system room.
PROTECTIVE ACTION AND RULES OF BEHAVIOUR
On escape of gas or perception of an unpleasant. pungent odor, (like rotten eggs) indicating SF
6
, decomposition products,
immediately leave or do not enter the system room or spaces below Only re-enter the room after thorough ventilation or
with breathing apparatus (isolating equipment).
FIRST AID
- When decomposition products come into contact with the skin or eyes. immediately rinse the skin with
ample water.
- Thoroughly rinse the eye with water, covering the, unaffected eye.
- Move persons with breathing difficulties out of the hazardous area into the fresh air. ensure they rest.
cover them with blankets and call in a doctor (risk of toxic pulmonary oedema)
First Aid staff: ........................................................................ Emergency Tel.: ....................................................................
CORRECT DISPOSAL
Only dispose of decomposition products. cleaning fluids and materials disposable overalls and filters (e4. from SF
6
,
systems. maintenance units, industrial vacuum cleaners Or breathing masks) ....................................... in waste containers
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ANNEX
