BS EN IEC 62271-4:2022 – TC:2023 Edition
$280.87
Tracked Changes. High-voltage switchgear and controlgear – Handling procedures for gases for insulation and/or switching
| Published By | Publication Date | Number of Pages |
| BSI | 2023 | 548 |
This part of IEC 62271 applies to the procedures for handling of gases and gas mixtures for insulation and/or switching during installation, commissioning, repair, overhaul, normal and abnormal operations and disposal at the end-of-life of high-voltage switchgear and controlgear. These procedures are regarded as minimum requirements to ensure the reliability of electric power equipment, the safety of personal working with these gases and gas mixtures and to minimize the impact on the environment. Additional requirements could be given or specified in the operating instruction manual of the manufacturer. For each gas or gas mixture, which is known to be used in electric power equipment at the date of the publication of this document, a separate annex describes specifications, handling procedures, safety measures, etc. For gases or gas mixtures not covered by these annexes the electric power equipment manufacturer should provide the information needed, following the structure of these annexes. Such gases or gas mixtures should also be described in a next edition or in amendments to this edition. NOTE 1 For the use of this document, high-voltage (HV) is defined as the rated voltage above 1 000 V. However, the term medium-voltage (MV) is commonly used for distribution systems with voltages above 1 kV and generally applied up to and including 52 kV. NOTE 2 Throughout this standard, the term “pressure” stands for “absolute pressure”. NOTE 3 Reference is also made to (Cigré Brochure 802, 2020). NOTE 4 For further details on gases, e.g. ecotoxicology, also refer to the chemical database ECHA (www.echa.europa.eu), which takes the actual volume band into consideration. NOTE 5 When reference to circuit-breakers is made, only gas circuit-breakers are of interest. When vacuum circuit breakers are of interest, they are explicitly mentioned.
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 302 | undefined |
| 307 | Annex ZA (normative)Normative references to international publicationswith their corresponding European publications |
| 309 | English CONTENTS |
| 322 | FOREWORD |
| 324 | INTRODUCTION |
| 325 | 1 Scope 2 Normative references |
| 326 | 3 Terms and definitions 3.1 General terms and definitions |
| 331 | 3.2 Terms and definitions for SF6 3.3 Terms and definitions for SF6 mixtures |
| 332 | 3.4 Terms and definitions for compressed air |
| 333 | 3.5 Terms and definitions for natural-origin gases |
| 334 | 3.6 Terms and definitions for C5F10O (C5-FK) in mixtures with N2, CO2, O2 (C5‑FK mixtures) |
| 335 | 3.7 Terms and definitions for C4F7N (C4-FN) in mixtures with N2, CO2, O2 (C4‑FN mixtures) |
| 336 | 4 Gas handling during installation, commissioning and after repair or overhaul on site 4.1 General |
| 337 | 4.2 Evacuation, filling and quality checking |
| 338 | Figures Figure 1 – Evacuation, filling and checking of the quality of the gas after filling |
| 339 | Tables Table 1 – Evacuation, filling and checking of the quality of the gas after filling |
| 340 | 4.3 Toppingup of prefilled gas compartments to the filling pressure/density for insulation and/or switching |
| 341 | Figure 2 – Topping‑up of prefilled gas compartments to the filling pressure/densityfor insulation and/or switching |
| 342 | 4.4 Filling sealed pressure systems 5 Gas handling during normal service life 5.1 Topping-up of gas to the filling pressure/density for insulation and/or switching Table 2 – Toppingup of prefilled gas compartments to the filling pressure/density for insulation and/or switching |
| 343 | Figure 3 – Topping-up of a gas to the filling pressure/densityfor insulation and/or switching |
| 344 | 5.2 Checking the quality of the gas 5.2.1 General 5.2.2 On-site measurement of the quality of gases with portable measurement equipment Table 3 – Topping-up of a gas to the filling pressure/densityfor insulation and/or switching |
| 345 | 5.2.3 Sampling and shipment of gases for offsite analysis 5.3 Rectifying the composition of a gas mixture Table 4 – Sampling and shipment of gases |
| 346 | 6 Recovery and reclaiming of gases during maintenance, repair, overhaul or dismantling on-site 6.1 General 6.2 Recovery and reclaiming of nonarced or normally arced gases from any gas compartment |
| 347 | Figure 4 – Example of recovery and reclaiming of nonarcedor normally arced gas from any gas compartment |
| 348 | 6.3 Recovery and reclaiming from any gas compartment containing heavily arced gas Table 5 – Example of recovery and reclaiming of nonarcedor normally arced gas from any gas compartment |
| 349 | Figure 5 – Example of recovery and reclaiming of heavilyarced gas from any gas compartment |
| 350 | 7 End-of-life of electric power equipment 7.1 General Table 6 – Example of recovery and reclaiming of heavily arced gasfrom any gas compartment |
| 351 | 7.2 Endoflife of controlled or closed pressure systems 7.3 Endoflife of sealed pressure systems Figure 6 – Endoflife of controlled or closed pressure systems |
| 352 | 7.4 Gas recovery and reclaiming at the endoflife of sealed pressure systems Figure 7 – Endoflife of sealed pressure systems |
| 353 | Figure 8 – Gas recovery and reclaiming at the endoflife of sealed pressure systems |
| 354 | Table 7 – Gas recovery at the endoflife of sealed pressure systems |
| 355 | Figure 9 – Dilution method |
| 356 | 7.5 Dismantling of electric power equipment (informative) Figure 10 – Dismantling of electric power equipment |
| 357 | Annex A (informative)Sulphur hexafluoride (SF6) A.1 Gas properties A.2 Safety and first aid A.2.1 General Figure A.1 – Pressure-temperature-density diagram for SF6 |
| 358 | A.2.2 Protection of personnel Table A.1 – Measures when working with SF6 electric power equipment |
| 359 | Table A.2 – Safety measures when opening or accessing gas compartments |
| 360 | A.2.3 Handling of contaminated safety equipment and tools A.2.4 Pressurised equipment and tools or measuring devices A.2.5 Personal safety and protective equipment |
| 361 | A.2.6 Facilities and services A.2.7 Additional safety measures in case of sudden release of SF6 A.2.8 First aid equipment and treatment |
| 362 | A.3 Environmental impact A.4 Training and certification A.4.1 General |
| 363 | A.4.2 Training |
| 364 | A.4.3 Certification A.5 Storage and transportation A.5.1 General A.5.2 Storage of containers filled with SF6 |
| 365 | A.5.3 Transportation of containers filled with SF6 Table A.3 – Examples of container types required for storage and transportation of SF6 |
| 366 | A.5.4 Storage and transportation of electric power equipment containing SF6 Table A.4 – International regulations for shipment of SF6 |
| 367 | A.5.5 Responsibilities A.6 Description of handling equipment A.6.1 General |
| 368 | A.6.2 Filters Figure A.2 – Schematic view of an example of a handling equipment for SF6 |
| 369 | A.6.3 Vacuum pump |
| 370 | A.6.4 Main and vacuum compressors A.6.5 Outlet compressor A.6.6 External and internal gas storage containers A.6.7 Evaporator and gas storage container heater |
| 371 | A.6.8 Gas piping and pipe junctions A.6.9 Control instruments A.6.10 Safety valves A.6.11 Flexible hose connections A.6.12 Portable devices for gas measurement Table A.5 – Gas measuring devices |
| 373 | A.6.13 Gas leakage tester A.6.14 Gas concentration alarm systems |
| 374 | A.6.15 Gas sampling cylinders A.7 Reclaiming procedures A.8 By-products A.9 Procedure to evaluate the potential effects on health of byproducts A.10 Handling of SF6 A.10.1 General A.10.2 Filling gas compartments with SF6 A.10.3 Topping-up gas compartments with SF6 to the filling pressure for insulation and/or switching A.10.4 Checking the quality of SF6 A.10.5 Recovery and reclaim of SF6 A.11 Specifications for SF6 needed for filling or topping-up electric power equipment |
| 375 | Annex B (informative)SF6 mixtures B.1 Gas properties B.1.1 General B.1.2 Chemical properties B.1.3 Physical properties Table B.1 – Main chemical characteristics of CF4 and N2 |
| 376 | B.1.4 Insulating and switching behaviour Table B.2 – Main physical characteristics of CF4 and N2 |
| 377 | B.2 Safety and first aid B.2.1 General B.2.2 Protection of personnel B.2.3 Handling of contaminated safety equipment and tools B.2.4 Pressurised equipment and tools or measuring devices B.2.5 Personal safety and protective equipment B.2.6 Facilities and services B.2.7 Additional safety measures in case of sudden release of SF6 mixtures B.2.8 First aid equipment and treatment B.3 Environmental impact B.4 Training and certification B.4.1 General |
| 378 | B.4.2 Training B.4.3 Certification B.5 Storage and transportation B.5.1 General B.5.2 Storage of containers filled with SF6 mixture |
| 380 | B.5.3 Transportation of containers filled with SF6 mixture Table B.3 – Examples of container types required for storage and transportation of SF6 mixtures and their complementary gases |
| 381 | B.5.4 Storage and transportation of electric power equipment containing SF6 mixture Table B.4 – International regulations for shipment of SF6 mixtures |
| 382 | B.5.5 Responsibilities B.6 Description of handling equipment B.6.1 General |
| 383 | Figure B.1 – Schematic view of an example of a handling equipment for SF6 mixture |
| 384 | B.6.2 Filters B.6.3 Vacuum pump B.6.4 Main and vacuum compressors B.6.5 Outlet compressor B.6.6 External and internal gas storage containers B.6.7 Evaporator and gas storage container heater B.6.8 Gas piping and pipe junctions B.6.9 Control instruments B.6.10 Safety valves B.6.11 Flexible hose connections B.6.12 Portable devices for gas measurement |
| 385 | B.6.13 Gas leakage tester B.6.14 Gas concentration alarm systems Table B.5 – Gas measuring devices |
| 386 | B.6.15 Gas sampling cylinders B.6.16 Gas mixing unit B.7 Reclaiming procedures B.8 By-products B.9 Procedure to evaluate the potential effects on health of byproducts B.10 Handling of SF6 mixtures B.10.1 General |
| 387 | B.10.2 Filling gas compartments with SF6 mixtures B.10.3 Topping-up gas compartments with SF6 mixtures to the filling pressure for insulation and/or switching |
| 388 | B.10.4 Checking the quality of SF6 mixtures B.10.5 Recovery and reclaim of SF6 mixtures |
| 389 | B.10.6 Rectifying the composition of SF6 mixtures B.11 Specifications for SF6 mixtures needed for filling or topping-up electric power equipment |
| 390 | Annex C (informative)Compressed air C.1 Gas properties C.1.1 General C.1.2 Chemical properties C.1.3 Physical properties Table C.1 – Main chemical characteristics of N2 and O2 |
| 391 | C.1.4 Insulating and switching behaviour C.2 Safety and first aid C.2.1 General Table C.2 – Typical physical characteristics of N2 and O2 |
| 392 | C.2.2 Protection of personnel Table C.3 – Measures when working with electric powerequipment containing compressed air |
| 393 | C.2.3 Handling of contaminated safety equipment and tools C.2.4 Pressurised equipment and tools or measuring devices Table C.4 – Safety measures when opening or accessing gas compartments |
| 394 | C.2.5 Personal safety and protective equipment |
| 395 | C.2.6 Facilities and services C.2.7 Additional safety measures in case of sudden release of compressed air C.2.8 First aid equipment and treatment |
| 396 | C.3 Environmental impact C.3.1 General C.3.2 Ecotoxicology |
| 397 | C.3.3 Ozone depletion C.3.4 Global warming/climate change (greenhouse effect) C.3.5 Environmental impact of by-products C.4 Training and certification C.4.1 General C.4.2 Training |
| 398 | C.4.3 Certification |
| 399 | C.5 Storage and transportation C.5.1 General C.5.2 Storage of containers filled with compressed air C.5.3 Transportation of containers filled with compressed air Table C.5 – Examples of container types required for storageand transportation of compressed air |
| 400 | C.5.4 Storage and transportation of electrical power equipment containing compressed air C.5.5 Responsibilities C.6 Description of handling equipment C.6.1 General Table C.6 – International regulations for shipment of compressed air |
| 401 | C.6.2 Filters Figure C.1 – Controlled release of compressed air |
| 402 | C.6.3 Vacuum pump Table C.7 – Typical filter types used during releaseof compressed air to the atmosphere |
| 403 | C.6.4 Main and vacuum compressors C.6.5 Outlet compressor C.6.6 External and internal gas storage containers C.6.7 Evaporator and gas storage container heater C.6.8 Gas piping and pipe junctions C.6.9 Control instruments |
| 404 | C.6.10 Safety valves C.6.11 Flexible hose connections C.6.12 Portable devices for gas measurement Table C.8 – Gas measuring devices |
| 405 | C.6.13 Gas leakage tester C.6.14 Gas concentration alarm systems |
| 406 | C.6.15 Gas sampling cylinders C.6.16 Gas purifying and filling device Figure C.2 – Example of a gas filling and purifying device |
| 407 | C.7 Reclaiming procedures C.7.1 General C.7.2 Filtering recommendations C.7.3 Transport of used compressed air in gas cylinders and containers by road Table C.9 – Exemplary filtering methods Table C.10 – Typical adsorbents for various compressed air contaminants |
| 408 | C.8 By-products C.8.1 General C.8.2 Decomposition of compressed air |
| 409 | C.8.3 Corrosion behaviour of compressed air and its byproducts C.8.4 Measures for the removal of byproducts C.8.5 Physiological characteristics of byproducts |
| 410 | C.9 Procedure to evaluate the potential effects on health of by-products C.9.1 General |
| 411 | C.9.2 Formation of by-products and health effects |
| 413 | Table C.11 – OELs for NO2, NO, O3 and HNO3 |
| 416 | Table C.12 – Example calculation of a normal leakage |
| 418 | Table C.13 – Example calculation of an abnormal leakage |
| 419 | Table C.14 – Example calculation for maintenance |
| 421 | C.10 Handling of compressed air C.10.1 General C.10.2 Filling gas compartments with compressed air C.10.3 Topping-up gas compartments with compressed air to the filling pressure for insulation and/or switching C.10.4 Checking the quality of compressed air |
| 422 | C.10.5 Recovery and reclaim of compressed air C.11 Specifications for compressed air needed for filling or topping-up electric power equipment |
| 423 | Annex D (informative)Natural-origin gases D.1 Gas properties D.1.1 General D.1.2 Chemical properties D.1.3 Physical properties Table D.1 – Main chemical characteristics of N2, O2 and CO2 |
| 424 | D.1.4 Insulating and switching behaviour D.2 Safety and first aid D.2.1 General Table D.2 – Typical physical characteristics of N2, O2 and CO2 |
| 425 | Table D.3 – Measures when working with electric powerequipment containing natural-origin gases |
| 426 | D.2.2 Protection of personnel Table D.4 – Safety measures when opening or accessing gas compartments |
| 427 | D.2.3 Handling of contaminated safety equipment and tools D.2.4 Pressurised equipment and tools or measuring devices D.2.5 Personal safety and protective equipment |
| 428 | D.2.6 Facilities and services |
| 429 | D.2.7 Additional safety measures in case of sudden release of natural-origin gases D.2.8 First aid equipment and treatment |
| 430 | D.3 Environmental impact D.3.1 General D.3.2 Ecotoxicology |
| 431 | D.3.3 Ozone depletion D.3.4 Global warming/climate change (greenhouse effect) D.3.5 Environmental impact of by-products D.4 Training and certification D.4.1 General |
| 432 | D.4.2 Training |
| 433 | D.4.3 Certification D.5 Storage and transportation D.5.1 General D.5.2 Storage of containers filled with natural-origin gases |
| 434 | D.5.3 Transportation of containers filled with natural-origin gases Table D.5 – Examples of container types required for storageand transportation of natural-origin gases |
| 435 | D.5.4 Storage and transportation of electrical power equipment containing natural-origin gases Table D.6 – International regulations for shipment of natural-origin gases |
| 436 | D.5.5 Responsibilities D.6 Description of handling equipment D.6.1 General |
| 438 | Figure D.1 – Schematic view of an example of a handlingequipment for natural origin gases |
| 439 | D.6.2 Filters Table D.7 – Typical filter types used during release ofnatural-origin gases to the atmosphere |
| 440 | D.6.3 Vacuum pump D.6.4 Main and vacuum compressors D.6.5 Outlet compressor |
| 441 | D.6.6 External and internal gas storage container D.6.7 Evaporator and gas storage container heater D.6.8 Gas piping and pipe junctions D.6.9 Control instruments D.6.10 Safety valves D.6.11 Flexible hose connections |
| 442 | D.6.12 Portable devices for gas measurement Table D.8 – Gas measuring devices |
| 444 | D.6.13 Gas leakage tester D.6.14 Gas concentration alarm systems D.6.15 Gas sampling cylinders D.6.16 Gas mixing unit |
| 445 | D.6.17 Gas filling unit D.6.18 Gas recovery unit D.6.19 Used gas storage and transportation devices D.7 Reclaiming procedures D.7.1 General |
| 446 | D.7.2 Filtering recommendations D.7.3 Transport of used natural-origin gases in gas cylinders and containers by road Table D.9 – Exemplary filtering operations Table D.10 – Typical adsorbents for various contaminants of natural-origin gases |
| 447 | D.8 By-products D.8.1 General D.8.2 Decomposition of natural-origin gases D.8.3 Corrosion behaviour of natural-origin gases and their byproducts |
| 448 | D.8.4 Measures for the removal of byproducts D.8.5 Physiological characteristics of byproducts |
| 449 | D.9 Procedure to evaluate the potential effects on health of gas components and by-products D.9.1 General D.9.2 Formation of by-products and health effects |
| 451 | Table D.11 – OELs for NO2, NO, O3, CO and HNO3 |
| 454 | Table D.12 – Example calculation of a normal leakage |
| 456 | Table D.13 – Example calculation of an abnormal leakage |
| 457 | Table D.14 – Example calculation for maintenance |
| 459 | D.10 Handling of natural-origin gases D.10.1 General D.10.2 Filling gas compartments with natural-origin gases |
| 460 | D.10.3 Topping-up gas compartments with natural-origin gases D.10.4 Checking the quality of natural-origin gases |
| 461 | D.10.5 Recovery and reclaim of natural-origin gases D.10.6 Rectifying the composition of natural-origin gas mixtures |
| 462 | D.11 Specifications for natural-origin gases needed for filling or topping-up electric power equipment |
| 463 | Annex E (informative)C5F10O (C5-FK) in mixtures with N2, CO2, O2 (C5-FK mixtures) E.1 Gas properties E.1.1 General E.1.2 Chemical properties Figure E.1 – Structure of the C5-FK molecule |
| 464 | E.1.3 Physical properties Figure E.2 – Vapour pressure curve of C5-FK Table E.1 – Main chemical characteristics C5-FK |
| 465 | E.1.4 Insulating and switching behaviour E.2 Safety and first aid E.2.1 General Table E.2 – Main physical characteristics of C5-FK |
| 466 | E.2.2 Protection of personnel Table E.3 – Measures when working with electricpower equipment containing C5-FK mixtures |
| 467 | Table E.4 – Safety measures when opening or accessing gas compartments |
| 468 | E.2.3 Handling of contaminated safety equipment and tools E.2.4 Pressurised equipment and tools or measuring devices |
| 469 | E.2.5 Personal safety and protective equipment |
| 470 | E.2.6 Facilities and services E.2.7 Additional safety measures in case of sudden release of C5-FK mixtures E.2.8 First aid equipment and treatment |
| 471 | E.3 Environmental impact E.3.1 General E.3.2 Ecotoxicology |
| 472 | E.3.3 Ozone depletion E.3.4 Global warming/climate change (greenhouse effect) E.3.5 Environmental impact of by-products E.3.6 Decomposition by UV-light in the upper atmosphere E.4 Training and certification E.4.1 General |
| 473 | E.4.2 Training |
| 474 | E.4.3 Certification E.5 Storage and transportation E.5.1 General E.5.2 Storage of containers filled with C5-FK or C5-FK mixtures |
| 475 | Table E.5 – Methods for storage of C5-FK Table E.6 – Examples of container types required for storage / transportation of C5-FK |
| 476 | E.5.3 Transportation of containers filled with C5-FK or C5-FK mixtures Table E.7 – Methods for storage of C5-FK mixtures Table E.8 – Examples of container types required for storage /transportation of C5-FK mixtures |
| 477 | Table E.9 – International regulations for shipment of C5-FK |
| 478 | E.5.4 Storage and transportation of electrical power equipment containing C5-FK mixtures Table E.10 – International regulations for shipment of C5-FK mixtures |
| 479 | E.5.5 Responsibilities E.6 Description of handling equipment E.6.1 General |
| 480 | Figure E.3 – Schematic view of an example of a handling equipment for C5-FK mixture |
| 481 | E.6.2 Filters |
| 482 | E.6.3 Vacuum pump Table E.11 – Typical filter types |
| 483 | E.6.4 Main and vacuum compressors E.6.5 Outlet compressor E.6.6 External and internal gas storage containers E.6.7 Evaporator and gas storage container heater |
| 484 | E.6.8 Gas piping and pipe junctions E.6.9 Control instruments E.6.10 Safety valves E.6.11 Flexible hose connections E.6.12 Portable devices for gas measurement Table E.12 – Gas measuring devices |
| 486 | E.6.13 Gas leakage tester E.6.14 Gas concentration alarm systems E.6.15 Gas sampling cylinders |
| 487 | E.6.16 Gas mixing unit E.6.17 Gas filling unit E.6.18 Gas recovery unit |
| 488 | E.6.19 Used gas storage and transportation devices E.7 Reclaiming procedures E.8 By-products E.8.1 General E.8.2 Decomposition of C5-FK mixtures |
| 489 | Table E.13 – OELs and LC50 values for C5-FK mixtures by-products |
| 490 | E.8.3 Corrosion behaviour of C5-FK mixtures and their byproducts E.8.4 Measures for the removal of by-products |
| 491 | E.8.5 Physiological characteristics of byproducts E.9 Procedure to evaluate the potential effects on health of gas components and by-products E.9.1 General |
| 492 | E.9.2 Formation of by-products and health effects |
| 496 | Table E.14 – Example calculation of a normal leakage |
| 498 | Table E.15 – Example calculation of an abnormal leakage |
| 499 | Table E.16 – Example calculation for maintenance |
| 500 | Table E.17 – TWA values of gas components |
| 501 | E.10 Handling of C5-FK mixtures E.10.1 General E.10.2 Filling gas compartments with C5-FK mixtures |
| 502 | E.10.3 Topping-up gas compartments with C5-FK mixtures to the filling pressure for insulation and/or switching E.10.4 Checking the quality of C5-FK mixtures |
| 503 | E.10.5 Recovery and reclaim of C5-FK mixtures E.10.6 Rectifying the composition of C5-FK mixtures E.11 Specifications for C5-FK mixtures needed for filling or topping-up electric power equipment |
| 504 | Annex F (informative)C4F7N (C4-FN) in mixtures with N2, CO2, O2 (C4-FN mixtures) F.1 Gas properties F.1.1 General F.1.2 Chemical properties Figure F.1 – Structure of the C4-FN molecule |
| 505 | F.1.3 Physical properties Figure F.2 – Vapour pressure curve of C4-FN Table F.1 – Main chemical characteristics C4-FN |
| 506 | F.1.4 Insulating and switching behaviour F.2 Safety and first aid F.2.1 General Table F.2 – Main physical characteristics of C4-FN |
| 507 | F.2.2 Protection of personnel Table F.3 – Measures when working with electric powerequipment containing C4-FN mixtures |
| 508 | Table F.4 – Safety measures when opening or accessing gas compartments |
| 509 | F.2.3 Handling of contaminated safety equipment and tools F.2.4 Pressurised equipment and tools or measuring devices F.2.5 Personal safety and protective equipment |
| 510 | F.2.6 Facilities and services F.2.7 Additional safety measures in case of sudden release of C4-FN mixtures |
| 511 | F.2.8 First aid equipment and treatment F.3 Environmental impact F.3.1 General F.3.2 Ecotoxicology |
| 512 | F.3.3 Ozone depletion F.3.4 Global warming/climate change (greenhouse effect) F.3.5 Environmental impact of by-products |
| 513 | F.3.6 Decomposition by UV-light in the upper atmosphere F.4 Training and certification F.4.1 General F.4.2 Training |
| 514 | F.4.3 Certification |
| 515 | F.5 Storage and transportation F.5.1 General F.5.2 Storage of containers filled with C4-FN or C4-FN mixtures Table F.5 – Methods for storage of C4-FN Table F.6 – Examples of container types required for storage / transportation of C4-FN |
| 516 | Table F.7 – Methods for storage of C4-FN mixtures |
| 517 | F.5.3 Transportation of containers filled with C4-FN or C4-FN mixtures Table F.8 – Examples of container types required for storageand transportation of C4-FN mixtures Table F.9 – International regulations for shipment of C4-FN |
| 519 | F.5.4 Storage and transportation of electrical power equipment containing C4-FN mixtures Table F.10 – International regulations for shipment of C4-FN mixtures |
| 520 | F.5.5 Responsibilities F.6 Description of handling equipment F.6.1 General |
| 521 | Figure F.3 – Schematic view of an example of a handling equipment for C4-FN mixture |
| 522 | F.6.2 Filters |
| 523 | F.6.3 Vacuum pump Table F.11 – Typical filter types |
| 524 | F.6.4 Main and vacuum compressors F.6.5 Outlet compressor F.6.6 External and internal gas storage containers F.6.7 Evaporator and gas storage container heater |
| 525 | F.6.8 Gas piping and pipe junctions F.6.9 Control instruments F.6.10 Safety valves F.6.11 Flexible hose connections F.6.12 Portable devices for gas measurement Table F.12 – Gas measuring devices |
| 527 | F.6.13 Gas leakage tester F.6.14 Gas concentration alarm systems F.6.15 Gas sampling cylinder |
| 528 | F.6.16 Gas mixing unit F.6.17 Gas filling unit F.6.18 Gas recovery unit |
| 529 | F.6.19 Used gas storage and transportation devices F.7 Reclaiming procedures F.8 By-products F.8.1 General F.8.2 Decomposition of C4-FN mixtures |
| 530 | Table F.13 – OELs and LC50 values for C4-FN mixtures by-products |
| 531 | F.8.3 Corrosion behaviour of C4-FN mixtures and their byproducts F.8.4 Measures for the removal of by-products |
| 532 | F.8.5 Physiological characteristics of byproducts F.9 Procedure to evaluate the potential effects on health of gas components and by-products F.9.1 General |
| 533 | F.9.2 Formation of by-products and health effects |
| 537 | Table F.14 – Example calculation of a normal leakage |
| 538 | Table F.15 – Example calculation of an abnormal leakage |
| 539 | Table F.16 – Example calculation for maintenance |
| 540 | Table F.17 – TWA values of gas components |
| 541 | F.10 Handling of C4-FN mixtures F.10.1 General F.10.2 Filling gas compartments with C4-FN mixtures |
| 542 | F.10.3 Topping-up gas compartments with C4-FN mixtures to the filling pressure for insulation and/or switching |
| 543 | F.10.4 Checking the quality of C4-FN mixtures F.10.5 Recovery and reclaim of C4-FN mixtures F.10.6 Rectifying the composition of C4-FN mixtures F.11 Specifications for C4-FN mixtures needed for filling or topping-up electric power equipment |
| 544 | Bibliography |
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Tracked Changes. Safety of primary and secondary lithium cells and batteries during transport Published By…
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BS EN IEC 62271-107:2019 – TC:2020 Edition
Tracked Changes. High-voltage switchgear and controlgear – Alternating current fused circuit-switchers for rated voltages above…
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BS EN IEC 62271-102:2018 – TC:2020 Edition
Tracked Changes. High-voltage switchgear and controlgear – Alternating current disconnectors and earthing switches Published By…
