GRID
High Voltage Switchgear
PS 0004EN
03
1996-03-18
2011-03-21
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Sheet N°
Revision
1st issue
Revision date
Page
Whilst SF
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in its pure state is not toxic, the decomposition products have varying degrees of toxicity.
They may irritate the skin, the eyes and the mucous membranes; and in massive amounts may
cause serious lesions (oed ema , hea rt failure, c irculatory disorders and unconsciousness).
However, very rapidly and before there is any real danger, signs such as a pungent smell, irritation
of the mucous of the nose, the eyes and the mouth will give a warning and the personnel
conc erned will have sufficient time to take the necessary safety ac tions.
Where the gas is used or handled within enclosed premises, ensure adequate ventilation,
especially low down.
If the ga s is inhaled, the area conc erned must be evac uated immediately.
Under normal operating conditions, leaks are exceptionally minor and not critical, even when the
gas contains impurities (due to the regenerating filters in the circuit breaker).
Filling and where necessary topping up operations must be carried out using the appropriate tools.
During maintenance operations, or at the end of the life-cycle, dust inside the equipment must be
removed by a vacuum extractor and the operator should wear a mask. Gas recovery must be
carried o ut using the a ppropriate gas rec overy equipment.
G ases and d ec ompo sition produc ts must be trea ted and /or disposed of by specialist organizations.
Under extremely ab normal c onditions (e.g. break in the shielding) in an enc losed spa ce, individua l
protective equipment is recommended.
Lastly, it is forbidden to smoke, drink, eat or keep food in the vicinity of open SF
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equipment,
whether indoo rs or outside (harmful dust).
SAFETY INSTRUCTIONS
.
OBSERVE ALL GENERAL INSTRUC TIONS G OVERNING INSTALLATION, C OMMISSIONING AND
OPERATION IN AC C ORDANC E WITH CURRENTLY AC C EPTED PRAC TICES AS WELL AS THOSE LAID
DO WN IN THE DOC UMENTATION SUPPLIED WITH THE EQUIPMENT.
It is essential that both the fitter and the user
read IEC Tec hnical Report 1634
regarding the use and
handling of sulphur hexafluoride gas.
Summary of Contents for FKG1X
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