BS EN IEC 60895:2020
$215.11
Live working. Conductive clothing
| Published By | Publication Date | Number of Pages |
| BSI | 2020 | 74 |
IEC 60895:2020 is applicable to conductive clothing, worn during live working (especially bare-hand working) on AC and DC electrical installations, to provide electrical continuity between all parts of the clothing and a reduction of electric field inside the clothing. This document is applicable to conductive clothing assembled from a conductive garment (jackets and trousers or coveralls forming a one-piece garment) and from conductive component parts (gloves, hoods or helmets, shoes or boots, overshoe socks and socks) in electrical systems with nominal voltage up to 1 000 kV AC and up to ±800 kV DC. This document does not indicate values of protection from the effects of the electric arc, because any value indicated would not guarantee the necessary protection from the effects of electric arcs, or the operator would need to wear very heavy and rigid conductive clothing, which would not allow the execution of the work in safety. The products designed and manufactured according to this document contribute to the safety of the users provided they are used by persons trained for the work, in accordance with the live working methods and the instructions for use. This third edition cancels and replaces the second edition, published in 2002. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: a) increase of the use up to 1 000 kV AC and ±800 kV DC; b) introduction of two classes of conductive clothing with different electrical requirements; c) revision of the electrical requirements of conductive clothing; d) definition of specific resistance values for each component part of the conductive clothing; e) introduction of conductive helmet and conductive scarf as component parts of conductive clothing; f) introduction of mechanical requirements and new tests for fabrics; g) update of the cleaning test procedures; h) revision of the efficiency test of the conductive clothing to improve the feasibility and repeatability; i) preparation of the elements of classification of defects, and general application of IEC 61318:2007; j) the normative Annex B for the classification of tests has been replaced by normative Annex C for the general type tests procedure, the normative Annex D for the classification of defects and the informative Annex E providing the justification for the classification of defects; k) the normative Annex C on sampling procedure has been deleted (not applicable according to IEC 61318:2007); l) modification of the recommended frequency of the periodic tests.
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 2 | undefined |
| 5 | Annex ZA(normative)Normative references to international publicationswith their corresponding European publications |
| 6 | English CONTENTS |
| 10 | FOREWORD |
| 12 | INTRODUCTION |
| 13 | 1 Scope 2 Normative references |
| 14 | 3 Terms and definitions |
| 16 | 4 Requirements 4.1 General 4.2 Requirements for conductive clothing 4.2.1 Design 4.2.2 Classification 4.2.3 Integrity of the conductive clothing |
| 17 | 4.2.4 Equipotential bonding 4.2.5 Screening efficiency 4.2.6 Spark-discharge protection 4.3 Mechanical requirements for the outer layer material 4.3.1 General 4.3.2 Tear resistance 4.3.3 Burst strength 4.3.4 Abrasion resistance 4.4 Requirements for material 4.4.1 General |
| 18 | 4.4.2 Flame retardancy 4.4.3 Electrical resistance 4.4.4 Current-carrying capability 4.4.5 Shielding efficiency 4.4.6 Resistance to cleaning 4.5 Specific requirements for component parts 4.5.1 Conductive gloves, overshoe socks and socks 4.5.2 Conductive footwear |
| 19 | 4.5.3 Conductive head cover, scarf and helmet 4.5.4 Conductive face screen 4.5.5 Requirements for garment – Electrical resistance 4.6 Marking |
| 20 | 4.7 Packaging 4.8 Instructions for use 5 Tests 5.1 General |
| 21 | 5.2 Mechanical tests for the outer layer material 5.2.1 Type test 5.2.2 Alternative method to mechanical test in cases where outer layer materials have completed the production phase 5.3 Tests of the material 5.3.1 General 5.3.2 Flame-retardancy test |
| 22 | Figures Figure 1 – Flame-retardancy test – Test chamber |
| 24 | Figure 2 – Flame-retardancy test – Test piece holder and support |
| 27 | 5.3.3 Electrical resistance test |
| 28 | Figure 3 – Electrical resistance test – Test set-up |
| 29 | Figure 4 – Orientation of test pieces for electrical resistance and current-carrying capability tests Figure 5 – Electrical resistance test – Electrical circuit |
| 30 | 5.3.4 Current-carrying capability Tables Table 1 – Arithmetic mean and maximum resistance of a unit square of the conductive material according to the maximum voltage class of the conductive clothing |
| 31 | 5.3.5 Shielding efficiency |
| 34 | Figure 6 – Shielding efficiency |
| 35 | 5.3.6 Resistance to cleaning Table 2 – Minimum shielding efficiency of conductive material according to the maximum voltage class of the conductive clothing |
| 37 | 5.3.7 Spark-discharge protection |
| 38 | 5.4 Tests of garment – Measurement of electrical resistance 5.4.1 General 5.4.2 Type test |
| 39 | 5.4.3 Alternative method to electrical resistance test in cases where garments have completed the production phase 5.5 Tests of the complete conductive clothing 5.5.1 General 5.5.2 Integrity of the conductive clothing 5.5.3 Bonding test Table 3 – Maximum resistance for garment according to the maximum voltage class of the conductive clothing |
| 40 | 5.5.4 Screening efficiency Table 4 – Maximum bonding resistance of the conductive clothing according to its maximum voltage class |
| 41 | Table 5 – Maximum phase-to-earth test voltage according to the maximum voltage class of the conductive clothing |
| 43 | Figure 7 – Screening efficiency of conductive clothing – First method: Test set-up |
| 44 | Figure 8 – Screening efficiency of conductive clothing – First method – Details of the measurements |
| 45 | Figure 9 – Position of ammeters for screening efficiency test |
| 46 | Figure 10 – Second method to check the screening efficiency Table 6 – Minimum screening efficiency of conductive clothing according to the maximum voltage class |
| 47 | 5.6 Tests of the component parts 5.6.1 General 5.6.2 Type test Table 7 – Parameters of the alternative test and minimum screening efficiency of conductive clothing according to the maximum voltage class |
| 48 | Figure 11 – Electrical resistance test – Conductive gloves Table 8 – Maximum resistance of glove according to the maximum voltage class of the conductive clothing |
| 49 | Figure 12 – Electrical resistance test – Conductive overshoe socks and socks Table 9 – Maximum resistance of overshoe socks and socks according to the maximum voltage class of the conductive clothing |
| 51 | Figure 13 – Electrical resistance test – Conductive footwear |
| 54 | Figure 14 – Electrical resistance test – Conductive head covers, scarves and face screens |
| 55 | 5.6.3 Alternative methods in cases where component parts have completed the production phase 5.7 Marking 5.7.1 Presence and correctness of marking 5.7.2 Durability of marking 5.8 Packaging 5.9 Presence and correctness of instructions for use Table 10 – Maximum resistance of conductive hood, scarf, helmet and face screen according to the maximum voltage class of the conductive clothing |
| 56 | 6 Conformity assessment of products having completed the production phase 7 Modification |
| 57 | Annexes Annex A (informative) Guidelines for the selection of the maximum voltage class of conductive clothing in relation to the nominal voltage of an electric system Table A.1 – Designation of maximum use voltage |
| 58 | Annex B (normative) Suitable for live working; double triangle (IEC 60417-5216:2002-10) Figure B.1 – Symbol for live working with its dimensions (IEC 60417-5216:2002-10) |
| 59 | Annex C (normative) General procedure for type tests C.1 Tests on the outer layer material C.2 Tests on material C.3 Tests on the conductive garment Table C.1 – List of type tests to be carried out on the outer layer material Table C.2 – List of type tests to be carried out on the material |
| 60 | C.4 Tests on the conductive component parts C.5 Tests on the complete conductive clothing Table C.3 – List of type tests to be carried out on the conductive garment Table C.4 – List of type tests to be carried out on the component parts Table C.5 – List of type tests to be carried out on the complete conductive clothing |
| 61 | Annex D (normative) Classification of defects and tests to be allocated Table D.1 – Classification of defects on the outer layer material and associated requirements and tests Table D.2 – Classification of defects on the conductive material and associated requirements and tests |
| 62 | Table D.3 – Classification of defects on the conductive garment and associated requirements and tests Table D.4 – Classification of defects on the conductive component partsand associated requirements and tests |
| 63 | Table D.5 – Classification of defects on the complete conductive clothing and associated requirements and tests |
| 64 | Annex E (informative) Rationale for the classification of defects Table E.1 – Justification for the type of defect |
| 67 | Annex F (informative) In-service use and care F.1 General F.2 Care, storage and repair F.2.1 Care F.2.2 Storage F.2.3 Cleaning and washing F.2.4 Patching and repair of conductive fabric |
| 68 | F.3 Inspection before use F.3.1 General F.3.2 Conductive clothing F.3.3 Conductive boots and leg straps F.3.4 Conductive socks and gloves F.4 Non-destructive periodic testing F.4.1 General F.4.2 Time between periodic tests F.4.3 Resistance test |
| 69 | F.4.4 Record keeping |
| 70 | Annex G (informative) Face protection G.1 General G.2 Face screen design |
| 71 | Figure G.1 – Electric field strength as a function of mesh opening radius |
| 72 | Annex H (informative) Example of general arrangement of complete conductive clothing Figure H.1 – Example of general arrangement of complete conductive clothing |
| 73 | Bibliography |
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