IEC 62271-4:2013
(Main)High-voltage switchgear and controlgear - Part 4: Handling procedures for sulphur hexafluoride (SF6) and its mixtures
High-voltage switchgear and controlgear - Part 4: Handling procedures for sulphur hexafluoride (SF<sub>6</sub>) and its mixtures
IEC 62271-4:2013 applies to the procedures for handling of SF6 during installation, commissioning, normal and abnormal operations, disposal at the end of life of high voltage switchgear and controlgear. This first edition cancels and replaces the first edition of IEC/TR 62271-303 published in 2008. This first edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition:
a) the description of the potential effects on health of SF6 by products (former Annex D of IEC/TR 62271-303:2008) has been replaced by the calculation methods for evaluating of the potential effects on health of SF6 by products (see Annex H);
b) information about cryogenic reclaim of SF6. Have been added (see Annex I);
c) handling procedures for the most popular SF6 mixtures have been added (see Annex J).
Appareillage à haute tension - Partie 4: Utilisation et manipulation de l'hexafluorure de soufre (SF<sub>6</sub>) et des mélanges contenant du SF<sub>6</sub>
La CEI 62271-4:2013 s'applique aux procédures de manipulation du SF6 lors de l'installation, de la mise en service, du fonctionnement normal ou anormal, et de l'élimination en fin de vie de l'appareillage à haute tension. Cette première édition annule et remplace la première édition de la CEI/TR 62271-303 parue en 2008. Cette première édition constitue une révision technique. Cette édition inclut les modifications techniques majeures suivantes par rapport à l'édition précédente:
a) remplacement de la description des effets potentiels sur la santé des produits de décomposition du SF6 (anciennement Annexe D de la CEI/TR 62271-303:2008) par les méthodes de calcul pour évaluer les effets potentiels sur la santé des produits de décomposition du SF6 (voir Annexe H);
b) ajout d'informations concernant la régénération cryogénique du SF6 (voir Annexe I);
c) ajout de procédures de manipulation pour les mélanges contenant du SF6 les plus courants (voir Annexe J).
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Standards Content (Sample)
IEC 62271-4 ®
Edition 1.0 2013-08
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
High-voltage switchgear and controlgear –
Part 4: Handling procedures for sulphur hexafluoride (SF ) and its mixtures
Appareillage à haute tension –
Partie 4: Utilisation et manipulation de l'hexafluorure de soufre (SF ) et des
mélanges contenant du SF
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IEC 62271-4 ®
Edition 1.0 2013-08
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
High-voltage switchgear and controlgear –
Part 4: Handling procedures for sulphur hexafluoride (SF ) and its mixtures
Appareillage à haute tension –
Partie 4: Utilisation et manipulation de l'hexafluorure de soufre (SF ) et des
mélanges contenant du SF
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
CODE PRIX XC
ICS 29.130.10; 29.130.99 ISBN 978-2-8322-1042-0
– 2 – 62271-4 © IEC:2013
CONTENTS
FOREWORD . 5
INTRODUCTION . 7
1 General . 8
1.1 Scope . 8
1.2 Normative references . 8
2 Terms and definitions . 9
3 SF handling during installation and commissioning . 11
3.1 General . 11
3.2 Evacuation, filling and checking the SF quality after filling . 11
3.3 Topping-up of SF pre-filled compartments to the rated filling
pressure/density . 13
3.4 Filling sealed pressure systems . 15
4 SF handling during normal service life . 15
4.1 Re-filling of SF to the rated filling pressure/density . 15
4.2 Checking the SF quality . 16
4.2.1 General . 16
4.2.2 Measurement of the SF quality with portable equipment . 16
4.2.3 Sampling and shipment of SF for off-site analysis . 17
5 SF recovery and reclaim during maintenance . 18
5.1 General . 18
5.2 SF recovery and reclaim from any compartment of controlled or closed
pressure systems containing non-arced or normally arced SF . 18
5.3 Recovery and reclaim from any compartment of controlled or closed
pressure systems containing heavily arced SF . 20
6 Dismantling of SF electric power equipment at the end-of-life . 22
6.1 General . 22
6.2 End-of-life of controlled or closed pressure systems . 23
6.3 End-of-life of sealed pressure systems . 23
6.4 SF recovery and reclaim at the end-of-life of sealed pressure systems . 24
6.5 Dismantling of electric power equipment at the end-of-life . 26
6.6 By-products at the end-of-life . 27
Annex A (informative) Storage and transportation of SF . 29
Annex B (informative) Safety and first aid . 33
Annex C (informative) Training and certification . 39
Annex D (informative) Description of SF Handling Equipment . 43
Annex E (informative) Sulphur hexafluoride . 51
Annex F (informative) Environmental effects of SF . 55
Annex G (informative) SF by-products. 58
Annex H (informative) Procedure for evaluating the potential effects on health of SF
by-products . 61
Annex I (informative) Cryogenic reclaim of SF . 67
Annex J (normative) Handling of SF mixtures . 71
Bibliography . 76
Figure 1 – Evacuation, filling and checking the SF quality after filling . 12
62271-4 © IEC:2013 – 3 –
Figure 2 – Topping-up of SF pre-filled compartments to the rated filling
pressure/density . 14
Figure 3 – SF re-filling to the rated filling pressure/density . 15
Figure 4 – Checking the SF quality on-site . 17
Figure 5 – SF sampling and shipment . 18
Figure 6 – Example of recovery and reclaim from any compartment of controlled or
closed pressure systems containing non-arced or normally arced SF . 19
Figure 7 – Example of recovery and reclaim from any compartment of controlled or
closed pressure systems containing heavily arced SF . 21
Figure 8 – End-of-life of controlled or closed pressure systems . 23
Figure 9 – End-of-life of sealed pressure systems . 24
Figure 10 – SF recovery and reclaim at the end-of-life of sealed pressure systems . 25
Figure 11 – Dismantling of electric power equipment . 27
Figure D.1 – General purpose reclaimer . 43
Figure D.2 – Gas mixing device . 49
Figure E.1 – Pressure/temperature/density characteristics for SF [16] . 52
Figure H.1 – Procedure for the evaluation of the potential effects on health due to
arcing . 65
Figure H.2 – Procedure for the evaluation of the potential effects on health due to low
energy discharges . 66
Figure I.1 – Saturated vapour pressure of various gases as a function of temperature . 68
Figure I.2 – Typical cryogenic reclaimer for SF recovery on site . 69
Figure I.3 – Typical cryogenic reclaimer for removing contaminants . 70
Figure J.1 – Vapour pressure of SF . 74
Figure J.2 – Maximum SF storage density to avoid SF liquefaction . 75
6 6
Table 1 – Evacuation, filling and checking the SF quality after filling . 13
Table 2 – Topping-up of SF pre-filled compartments to the rated filling
pressure/density. . 14
Table 3 – SF re-filling to the rated filling pressure/density . 16
Table 4 – Checking the SF quality on-site . 17
Table 5 – SF sampling and shipment . 18
Table 6 – Example of recovery and reclaim from any compartment of controlled or
closed pressure systems containing non-arced or normally arced SF . 20
Table 7 – Example of recovery and reclaim from any compartment of controlled or
closed pressure systems containing heavily arced SF . 22
Table 8 – SF recovery at the end-of-life of sealed pressure systems .
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