EN 1555-3:2002

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Cevni sistemi iz polimernih materialov za oskrbo s plinastimi gorivi - Polietilen (PE) - 3. del: FitingiKunststoff-Rohrleitungssysteme für die Gasversorgung - Polyethylen (PE) - Teil 3: FormstückeSystemes de canalisations en plastique pour la distribution de combustibles gazeux - Polyéthylene (PE) - Partie 3: RaccordsPlastics piping systems for the supply of gaseous fuels - Polyethylene (PE) - Part 3: Fittings91.140.40Sistemi za oskrbo s plinomGas supply systems83.140.30Cevi, fitingi in ventili iz polimernih materialovPlastics pipes, fittings and valvesICS:Ta slovenski standard je istoveten z:EN 1555-3:2002SIST EN 1555-3:2003en01-oktober-2003SIST EN 1555-3:2003SLOVENSKI
STANDARD
EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 1555-3December 2002ICS 23.040.45; 91.140.40English versionPlastics piping systems for the supply of gaseous fuels -Polyethylene (PE) - Part 3: FittingsSystèmes de canalisations en plastique pour la distributionde combustibles gazeux - Polyéthylène (PE) - Partie 3:RaccordsKunststoff-Rohrleitungssysteme für die Gasversorgung -Polyethylen (PE) - Teil 3: FormstückeThis European Standard was approved by CEN on 1 November 2002.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on application to the Management Centre or to any CEN member.This European Standard exists in three official versions (English, French, German). A version in any other language made by translationunder the responsibility of a CEN member into its own language and notified to the Management Centre has the same status as the officialversions.CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece,Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMITÉ EUROPÉEN DE NORMALISATIONEUROPÄISCHES KOMITEE FÜR NORMUNGManagement Centre: rue de Stassart, 36
B-1050 Brussels© 2002 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 1555-3:2002 ESIST EN 1555-3:2003

Examples of typical terminal connection for electrofusion fittings.20Bibliography.22SIST EN 1555-3:2003

a maximum operating pressure, MOP, up to and including 10 bar 1);b)
an operating temperature of 20 °C as reference temperature.NOTE 1For other operating temperatures, derating coefficients should be used, see EN 1555-5.EN 1555 covers a range of maximum operating pressures and gives requirements concerning colours andadditives.NOTE 2It is the responsibility of the purchaser or specifier to make the appropriate selections from these aspects, taking into account theirparticular requirements and any relevant national regulations and installation practices or codes.This standard is applicable for fittings of the following types:a)
electrofusion socket fittings;b)
electrofusion saddle fittings;c)
spigot end fittings (for butt fusion using heated tools and electrofusion socket fusion);d)
mechanical fittings.The fittings can e.g. be in the form of couplers, equal and reduced tees, reducers, bends or caps.2 Normative referencesThis European Standard incorporates by dated or undated reference, provisions from other publications. Thesenormative references are cited at the appropriate places in the text, and the publications are listed hereafter. Fordated references, subsequent amendments to or revisions of any of these publications apply to this EuropeanStandard only when incorporated in it by amendment or revision. For undated references the latest edition of thepublication referred to applies (including amendments).EN 682, Elastomeric seals - Materials requirements for seals used in pipes and fittings carrying gas andhydrocarbon fluids.EN 728, Plastics piping and ducting systems ¾ Polyolefin pipes and fittings ¾ Determination of oxidation inductiontime.EN 921, Plastics piping systems — Thermoplastics pipes — Determination of resistance to internal pressure atconstant temperature.EN 1555-1:2002, Plastics piping systems for the supply of gaseous fuels ¾ Polyethylene (PE) ¾ Part 1: GeneralEN 1555-2:2002, Plastics piping systems for the supply of gaseous fuels ¾ Polyethylene (PE) ¾ Part 2: Pipes.EN 1555-5:2002, Plastics piping systems for the supply of gaseous fuels ¾ Polyethylene (PE) ¾ Part 5: Fitness forpurpose of the system.EN 1716, Plastics piping systems - Polyethylene (PE) tapping tees - Test method for impact resistance of anassembled tapping tee.
1)
1 bar = 0,1 MPaSIST EN 1555-3:2003

anddesignation.ISO 228-1, Pipe threads where pressure-tight joints are not made on the threads - Part 1: Dimensions, tolerancesand designation.ISO 10838-1, Mechanical fittings for polyethylene piping systems for the supply of gaseous fuels ¾ Part 1: Metalfittings for pipes of nominal outside diameter less than or equal to 63 mm.ISO 10838-2, Mechanical fittings for polyethylene piping systems for the supply of gaseous fuels ¾ Part 2: Metalfittings for pipes of nominal outside diameter greater than 63 mm.ISO 10838-3, Mechanical fittings for polyethylene piping systems for the supply of gaseous fuels ¾ Part 3:Thermoplastic fittings for pipes of nominal outside diameter less than or equal to 63 mm.ISO 13953, Polyethylene (PE) pipes and fittings - Determination of the tensile strength and failure mode of testpieces from a butt-fused joint.ISO 13954, Plastics pipes and fittings - Peel decohesion test for polyethylene (PE) electrofusion assemblies ofnominal outside diameter greater than or equal to 90 mm.ISO 13955, Plastics pipes and fittings - Crushing decohesion test for polyethylene (PE) electrofusion assemblies.ISO/DIS 13956,Plastics pipes and fittings - Determination of cohesive strength - Tear test for polyethylene (PE)assemblies.3 Terms and definitions, symbols and abbreviationsFor the purposes of this European Standard, the terms and definitions, symbols and abbreviations given inEN 1555-1:2002 apply, together with the following.3.1electrofusion socket fittingpolyethylene (PE) fitting which contains one or more integral heating elements, that are capable of transformingelectrical energy into heat to realise a fusion joint with a spigot end or a pipe3.2electrofusion saddle fittingpolyethylene (PE) fitting which contains one or more integral heating elements, that are capable of transformingelectrical energy into heat to realise a fusion joint onto a pipe3.2.1tapping teeelectrofusion saddle fitting (top loading or wrap round) which contains an integral cutter, to cut through the wall ofthe main pipe. The cutter remains in the body of the saddle after installation3.2.2branch saddleelectrofusion saddle fitting (top loading or wrap round) which requires an ancillary cutting tool for drilling a hole inthe adjoining main pipeSIST EN 1555-3:2003

during storage;b)
under the effect of the gas conveyed therein;c)
with respect to the service environment and operating conditions.The requirements for the level of material performance of non-polyethylene parts shall be at least as stringent asthat of the compound for the piping system.Fittings material in contact with the PE pipe shall not adversely affect pipe performance or initiate stress cracking.4.2.2 Metal partsAll metal parts susceptible to corrosion shall be adequately protected.When dissimilar metallic materials are used which can be in contact with moisture, steps shall be taken to avoid thepossibility of galvanic corrosion.SIST EN 1555-3:2003
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