EN 50381:2004

Transportable ventilated rooms with or without an internal source of release

1.1 This European Standard contains the specific requirements for the construction and testing of transportable ventilated rooms (TVR's), such as skid mounted analyser houses with type of protection 'v' intended for use in potentially explosive atmospheres. Transportable in this sense means manufactured in one location (the manufacturer's premises) for trade and transportation to another location (the user's premises) for installation and use. This European Standard supplements European Standard EN 50014 or where appropriate EN 50021, the requirements of which apply to electrical apparatus with type of protection 'v' except as modified within this standard. This standard does not contain the requirements for equipment group II, category 1 or equipment group I, category M1. This standard does not contain the requirements for equipment group I, category M2 where there exists a potential source of release. This standard does not contain the requirements for group II where there exists a potential hazard from combustible dusts. NOTE It is not the intention of this European Standard to cover stationary analyzer houses according to EN 61285. 1.2 This European Standard includes the requirements for the construction of the TVR and its associated components including, the inlet and outlet apertures for the ventilation gas supply and for the safety provisions and devices necessary for the type of protection 'v'. 1.3 This European Standard specifies the requirements for TVR's with or without an internal source of release of potentially flammable or toxic, gas, liquid or vapour (for example analyzers placed within the TVR). 1.4 Due to the safety factors incorporated in the type of protection, the uncertainty of measurement inherent in good quality, regularly calibrated measurement equipment is considered to have no significant detrimental effect and need not be taken into account when making the measurements necessary to verify compliance of the apparatus with the requirements of this standard.

Transportable ventilierte Räume mit oder ohne innere Freisetzungsstelle

Caissons ventilés transportables avec ou sans source de dégagement interne

Premični prezračevani prostori z notranjim virom sproščanja ali brez njega + Popravek AC

General Information

• Status: Published
• Publication Date: 30-Aug-2004
• Withdrawal Date: 28-Feb-2007
• ICS: 29.260.20 - Electrical apparatus for explosive atmospheres
• Technical Committee: CLC/TC 31 - Electrical apparatus for explosive atmospheres - General requirements
• Drafting Committee: CLC/SC 31-7 - Pressurization and other techniques
• Parallel Committee: IEC/TC 31 - Electrical apparatus for potentially explosive atmospheres
• Current Stage: 9093 - Decision to confirm - Review Enquiry
• Completion Date: 27-Jan-2021
• Directive: 2014/34/EU - Directive 2014/34/EU Of The European Parliament And Of The Council of 26 February 2014 on the harmonisation of the laws of the Member States relating to equipment and protective systems intended for use in potentially explosive atmospheres (recast)
• Directive: 94/9/EC - Directive 94/9/EC of the European Parliament and the Council of 23 March 1994 on the approximation of the laws of the Member States concerning equipment and protective systems intended for use in potentially explosive atmospheres
• Mandate: BC/CEN/CLC/08-92 - BC/CEN/CLC/08-92
• Ref Project: SIST EN 50381:2005+AC:2005 - Transportable ventilated rooms with or without an internal source of release

Standards Content (Sample)

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Transportable ventilierte Räume mit oder ohne innere FreisetzungsstelleCaissons ventilés transportables avec ou sans source de dégagement interneTransportable ventilated rooms with or without an internal source of release29.260.20Electrical apparatus for explosive atmospheresICS:Ta slovenski standard je istoveten z:EN 50381:2004SIST EN 50381:2005+AC:2005en01-december-2005SIST EN 50381:2005+AC:2005SLOVENSKI
STANDARD



SIST EN 50381:2005+AC:2005



EUROPEAN STANDARD
EN 50381 NORME EUROPÉENNE EUROPÄISCHE NORM
August 2004 CENELEC European Committee for Electrotechnical Standardization Comité Européen de Normalisation Electrotechnique Europäisches Komitee für Elektrotechnische Normung
Central Secretariat: rue de Stassart 35, B - 1050 Brussels
© 2004 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. EN 50381:2004 E
ICS 29.260.20 Incorporates Corrigendum December 2005
English version
Transportable ventilated rooms
with or without an internal source of release
Caissons ventilés transportables
avec ou sans source de dégagement interne Transportable ventilierte Räume
mit oder ohne innere Freisetzungsstelle
This European Standard was approved by CENELEC on 2004-03-01. CENELEC members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration.
Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the Central Secretariat or to any CENELEC member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CENELEC member into its own language and notified to the Central Secretariat has the same status as the official versions.
CENELEC members are the national electrotechnical committees of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.
SIST EN 50381:2005+AC:2005



EN 50381:2004 - 2 -
Foreword This European Standard was prepared by WG 31-73, of SC 31-7, Pressurization and other techniques, of the Technical Committee CENELEC TC 31, Electrical apparatus for explosive atmospheres. The text of the draft was submitted to the Unique Acceptance Procedure and was approved by CENELEC as EN 50381 on 2004-03-01. The following dates were fixed: – latest date by which the EN has to be implemented
at national level by publication of an identical
national standard or by endorsement
(dop)
2005-03-01 – latest date by which the national standards conflicting
with the EN have to be withdrawn
(dow)
2007-03-01 This standard covers the essential requirements for pressurized rooms without an internal source of release and the additional requirements when an internal source of release is present. This European Standard was prepared under mandate BC/CEN/CLC/08-92 given to CENELEC by the European Commission and the European Free Trade Association and covers essential requirements of the EC Directive 94/9/EC. See Annex ZZ. This European Standard is to be read in conjunction with EN 50014, Electrical apparatus for potentially explosive atmospheres – General requirements, or where appropriate, with EN 50021, Electrical apparatus for potentially explosive atmospheres – Type of protection “n”. This European Standard should not be considered in conjunction with any editions of these standards and their amendments published before 1997. The contents of the corrigendum of December 2005 have been included in this copy. SIST EN 50381:2005+AC:2005



- 3 - EN 50381:2004
Contents Page 1 Scope.6 2 Normative references.6 3 Definitions.7 4 Construction requirements for TVR's and ducting.10 4.1 General.10 4.2 Degree of ingress protection.10 4.3 Design and construction.11 4.4 Mechanical strength.11 4.5 Penetrations.
...