EN 50365:2002
(Main)Electrically insulating helmets for use on low voltage installations
Electrically insulating helmets for use on low voltage installations
This standard is applicable to electrically insulating helmets used for working live or close to live parts on installations not exceeding 1 000 V a.c. or 1 500 V d.c. These helmets, when used in conjunction with other electrically insulating protective equipment prevent dangerous current from passing through persons via their head.
Elektrisch isolierende Helme für Arbeiten an Niederspannungsanlagen
Diese Norm gilt für elektrisch isolierende Helme zum Arbeiten unter Spannung oder in der Nähe unter Span-nung stehender Teile bis AC 1000 V oder DC 1500 V. Diese Helme verhindern bei Verwendung mit anderen elektrisch isolierenden persönlichen Schutz¬aus¬rü¬s-tungen eine gefährliche Körperdurchströmung durch den Kopf.
Casques électriquement isolants pour utilisation sur installations à basse tension
Cette norme est applicable aux casques électriquement isolants utilisés pour le travail sur ou près de parties sous tension d’installations ne dépassant pas 1 000 V en courant alternatif ou 1 500 V en courant continu. Ces casques, lorsqu’ils sont utilisés simultanément à d’autres équipements de protection électriquement isolante, empêchent les courants dangereux de traverser les personnes par la tête.
Elektroizolacijske čelade za delo na nizkonapetostnih inštalacijah
General Information
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Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.KElektrisch isolierende Helme für Arbeiten an NiederspannungsanlagenCasques électriquement isolants pour utilisation sur installations à basse tensionElectrically insulating helmets for use on low voltage installations13.340.20Varovalna oprema za glavoHead protective equipment13.260Protection against electric shock. Live workingICS:Ta slovenski standard je istoveten z:EN 50365:2002SIST EN 50365:2002en01-september-2002SIST EN 50365:2002SLOVENSKI
STANDARD
EUROPEAN STANDARDEN 50365NORME EUROPÉENNEEUROPÄISCHE NORMMay 2002CENELECEuropean Committee for Electrotechnical StandardizationComité Européen de Normalisation ElectrotechniqueEuropäisches Komitee für Elektrotechnische NormungCentral Secretariat: rue de Stassart 35, B - 1050 Brussels© 2002 CENELEC -All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.Ref. No. EN 50365:2002 EICS 13.340.20; 13.260English versionElectrically insulating helmets for use on low voltage installationsCasques électriquement isolantspour utilisation sur installationsà basse tensionElektrisch isolierende Helme für Arbeitenan NiederspannungsanlagenThis European Standard was approved by CENELEC on 2001-07-01. CENELEC members are bound tocomply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving thisEuropean Standard the status of a national standard without any alteration.Up-to-date lists and bibliographical references concerning such national standards may be obtained onapplication to the Central Secretariat or to any CENELEC member.This European Standard exists in three official versions (English, French, German). A version in anyother language made by translation under the responsibility of a CENELEC member into its ownlanguage and notified to the Central Secretariat has the same status as the official versions.CENELEC members are the national electrotechnical committees of Austria, Belgium, Czech Republic,Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands,Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom.SIST EN 50365:2002
- 3 -EN 50365:2002Contents1Scope.42Normative references.43Definitions.54Classification.55Requirements.55.1General.55.2Non-electrical requirements.55.3Electrical requirements.55.4Marking.65.5Packaging.65.6Instructions for use.66Tests.66.1General.66.2Non-electrical tests.66.3Electrical tests.76.4Marking.86.5Packaging.87Quality assurance plan and acceptance tests.87.1General.87.2Sampling procedure.87.3Acceptance tests.8Annex A (normative) General test procedure.11Annex B (normative) Instructions for use.12Annex C (normative) Sampling procedure.13Annex D (informative) Acceptance tests.15FiguresFigure 1 - Arrangement for electrical tests.9Figure 2 - Marking.10TablesTable 1 - Proof test voltage, proof test current and withstand test voltage.8Table A.1 - Sequence of tests.11Table C.1 - Classification of defects.13Table C.2 - Major defects.13Table C.3 - Minor defects.14SIST EN 50365:2002
- 5 -EN 50365:20023 Definitions3.1electrically insulating helmeta safety helmet which protects the wearer against electrical shocks by preventing the passageof dangerous current through the body via the head3.2type testa test performed on one or more devices made to a certain design to show that the designmeets certain specifications [IEV 151-04-15]3.3sampling testa test performed on a number of devices taken at a random from a batch [IEV 151-04-17]3.4acceptance testa contractual test to prove the customer that the device meets certain conditions of itsspecification [IEV 151-04-20]3.5proof test voltagea specified value of voltage that is applied to a device, item or component for the timedefined under specified conditions to assure that the electrical strength of the insulation isabove a specified value3.6withstand test voltagea specified value of voltage that a device, item or component must withstand withoutflashover, disruptive discharge, puncture or other electric failure when that value of voltage isapplied under specified conditions4 ClassificationHelmets used on or near electrical installations shall be classified in-electrical class 0 for installations with nominal voltage up to 1 000 V a.c. and1 500 V d.c.5 Requirements5.1 GeneralInsulating helmets shall fulfil the requirements of EN 397 or EN 443.5.2 Non-electrical requirementsInsulating helmets shall not consist of conductive parts (see 6.2.1).The design of air-conditioning holes – if any – shall prevent accidental contact with live partsand provide a degree of protection IP3X (see 6.2.2).5.3 Electrical requirementsInsulating helmet shell shall pass a proof voltage test and a withstand voltage test accordingto 6.3.SIST EN 50365:2002
- 7 -EN 50365:20026.3 Electrical tests6.3.1 GeneralElectrical type tests shall be performed in a room where temperature is (23 ± 2) °C and(50 ± 5) % relative humidity (see HD 437, standard atmosphere B).Electrical tests shall only be performed on whole helmet shells.Tests arrangements, power sources and procedures shall be in accordance withHD 588.1/EN 60060-2.Type and sampling tests are destructive, therefore tested helmet shells shall be destroyedafter the completion of the tests.6.3.2 Test arrangementThe helmet shell shall be fixed in an appropriated manner (see Figure 1). Then the tank andthe inner side of the shell shall be filled with tap water. The vertical clearance value dbetween the helmet shell bram and the level of water shall be the same inside and outside.The clearance value d shall be (20 ± 3) mm for the proof voltage test according to 6.3.4 and(40 ± 3) mm for the withstand voltage test according to 6.3.5.The water inside the helmet shell shall be connected to the high voltage terminal of thesupply. The water in the tank outside the helmet shell shall be connected to the ground.6.3.3 PreconditioningHelmet shells submitted to test shall be treated preliminary on the internal and externalsurface with mechanical action by sand paper rougher than P 80 according ISO/DIS 6344-1 inorder to remove eventual films of paints or other substances on the surface. The mechanicalaction shall not damage the underlying material.In case of helmet shells provided with air-conditioning holes, these holes shall be closed withinsulating material.NOTE
Holes can be closed with electrician’s putty or two-component adhesive.Then the helmet shells shall be preconditioned by immersing in tap water for at least(24
0,5) h. Before carrying out the test, the helmet shells shall be wiped off. The test shallnot begin later than 5 minutes after removing from the water tank.6.3.4 Proof voltage testEach unit shall be submitted to a proof test voltage given in Table 1.The alternating voltage shall be initially applied at a low value and gradually increased at aconstant rate-of rise of approximately 1 000 V/s until the specified voltage level is reached orfailure occurs.For the type and the sampling tests the voltage shall be applied continuously for a duration ofnot less than 3 min
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