Gas Engineering Recmmendatin GER1 Issue 4 2016 A GUIDE FOR GAS METER OPERATIVES ON REPORTING AND ACTING ON ASSET CONDITION ISSUES 1
2013 Energy Netwrks Assciatin All rights reserved. N part f this publicatin may be reprduced, stred in a retrieval system r transmitted in any frm r by any means, electrnic, mechanical, phtcpying, recrding r therwise, withut the prir written cnsent f Energy Netwrks Assciatin. Specific enquiries cncerning this dcument shuld be addressed t: Operatins Directrate Energy Netwrks Assciatin 6 th Flr, Dean Bradley Huse 52 Hrseferry Rd Lndn SW1P 2AF In the event that there is any cnflict r cntradictin between this Guide and gverning industry dcuments referenced in this Guide, the terms f the referenced dcuments will prevail. These include inter alia relevant gas Regulatins, British Standards, Institutin f Gas Engineers and Managers (IGEM) standards and Gas Safe Register Technical Bulletins, and the Gas Industry Unsafe Situatin Prcedures (Current editin). The infrmatin cntained in this Guidance dcument is prvided fr general infrmatin purpses nly. Whilst its authrs and ENA have taken every care t ensure the accuracy and quality f the infrmatin prvided in this Guidance dcument, the authrs and/r ENA can accept n respnsibility in respect f any lss r damage f any kind whatsever which may arise frm reliance n infrmatin cntained in this Guidance dcument regardless f whether such infrmatin riginates frm the authrs, ENA, its sharehlders, crrespndents r ther cntributrs. The authrs and/r ENA accept n respnsibility fr the cntents f any ther reference, circular r guideline referred t in this Guidance dcument. As stated abve, the cntents f this Guidance dcument are fr infrmatin purpses nly. First published, Octber 2013 Amendments since publicatin Issue Date Amendment Issue 1 Nvember 2013 In Appendix Reference 3, the wrding was expanded t include Inaccessible Issue 2 June 2014 Amendments t A02, A03, A05, and Appendix reference 8. General changes f reference t Gas Industry Unsafe Situatins Prcedures (Current editin) Issue 3 Nvember 14 Varius amendments t all categries as a result f feedback frm industry grups Issue 4 Versin 1 August 2016 Fully reviewed by all GDNs. BS6400:1 2016 update. 2
Cntents Acrnyms... 5 Intrductin... 6 List f Asset Cnditin Cdes... 9 Guidance Sheets... 10 A01 - Gas Escape: visible signs f escaping gas r a smell f gas exists which is nt assciated with the dwnstream gas installatin.... 11 A02 - Suspected Fumes/Carbn Mnxide.... 12 A03 - Remved.... 13 A04 - Medium Pressure (MP) r Intermediate Pressure (IP) gas service internal t dmestic premises and built ver services.... 14 A05 - Emergency Cntrl Valve inperable r faulty (including failed let by test).... 15 A06 - Incrrect gas pressure measured at the utlet f the meter caused by the distributin netwrk.... 16 A07 - Remved... 17 B01 Gas service pipe shws signs f significant crrsin.... 18 B02 - Old uncapped steel pipewrk f unknwn type at existing meter psitin.... 19 B03 - ECV is an ld style Thumb tap.... 20 B04 - Lw Pressure (LP) built ver services.... 21 B05 - Emergency Cntrl Valve falls t pen psitin, e.g. handle fitted incrrectly.... 22 C01 - Remved.... 23 C02 - Visible r expsed Plyethylene service pipe.... 24 C03 - Rising service pipe lcated within a cavity wall.... 25 C04 - Additinal live service discvered in dmestic prperty.... 26 C05 - Third-party damage t gas service, e.g. signs f vandalism, r ther external factrs.... 27 C06 - Remved... 28 C07 - Yellw cap instead f ECV handle.... 29 Reference 1 - Suspected vltage n utlet pipewrk fllwing initial check with apprpriate vltage indicatr.... 30 Reference 2 - Blcked medium pressure regulatr vent pipe r inapprpriately installed vent pipe, e.g. pipe end submerged.... 31 3
Reference 3 - Meter r Emergency Cntrl Valves psitin enclsed and installer is unable t carry ut wrk.... 32 Reference 4 - Unable t wrk n r replace meter due t insufficient space r psitining f meter.... 33 Reference 5 - Missing Emergency Cntrl Valve handle.... 34 Reference 6 - Crssed meters, i.e. flat envirnments.... 35 Reference 7 LP Gas meter installatin in unacceptable clse prximity t electricity supply r meter (150mm minimum clearance).... 36 Reference 8 - Meter fitted n sle means f escape rute.... 37 Reference 9 - Damage t meter bx r water ingress prblems... 38 Reference 10 - Risk t the general public r custmer due t meter bx psitin, e.g. semi cncealed in public ftpath.... 39 Reference 11 - N visible evidence f equiptential bnding at gas meter installatin r n utlet pipewrk immediately inside the prperty.... 40 Reference 12 - Adverse envirnment fr the lcatin f the gas meter installatin, e.g. t ht, cld, and wet, etc.... 41 Reference 13 - Meter Installatin believed t be at high risk f physical damage.... 42 Reference 14 - Vegetatin grwth preventing access t the meter.... 43 Reference 15 - Electrical Insulatin Jint fitted after the Emergency Cntrl Valve.... 44 Reference 16 - Old style nn typical ECV is encuntered that is nt t current British standard (BS746 r BS21).... 45 Reference 17 - Medium r Intermediate Pressure ECV.... 46 Reference 18 - IGT LP sites utilising Medium Pressure ECV s.... 47 4
BS CO British Standards Carbn Mnxide Acrnyms DNO ENA GDN GIRS GIUSP GT IGE IGEM IP igt MO MP MPRN OAMI PE UIP Distributin Netwrk Operatr (Electricity Netwrk) Energy Netwrks Assciatin Gas Distributin Netwrk Gas Industry Registratin Scheme Gas Industry Unsafe Situatins Prcedures Gas Transprter Institutin f Gas Engineers Institutin f Gas Engineers and Managers (frmerly the IGE) Intermediate Pressure Independent Gas Transprter Meter Operative Medium Pressure Meter Pint Reference Number Ofgem Apprved Meter Installer Plyethylene Utility Infrastructure Prvider 5
Intrductin What is the aim f this Guide and wh is it fr? A number f rganisatins reviewed the business prcesses fr reprting issues assciated with gas service terminatin assets, recgnising that there will be increased activity at service psitins during the smart meter rll-ut. They identified a series f defects that yu, as a Meter Operative, might cme acrss, and gave each ne a unique cde ( asset cnditin cde ) fr reprting purpses. Yu may well cme acrss these issues (i.e. defects) when installing smart meters, r undertaking ther wrk at gas service psitins. This Guide is intended t supprt yu t make a crrect diagnsis and give directin n the actins yu shuld take. Meter Operatives are the primary audience fr this Guide, hwever, it is als intended t assist Meter Operative managers and trainers. Frmat and Structure f the Guide The Guide cntains: A list f the asset cnditin cdes. A guidance sheet fr each f the asset cnditin cdes, cntaining: The cde and descriptin; Guidance details, which clearly state the actins yu must take and the dcuments yu shuld refer t. An appendix f ther nn GDN r igt issues that may be identified during meterwrk. The cdes are categrised as fllws: A. Emergency Cdes Fllwing cntact with the Natinal Gas Emergency Service, yu must risk assess the situatin and decide if yu can cntinue with the Smart Meter installatin B. Remedial Wrk Cdes Yu must stp wrk, risk assess the installatin and take apprpriate actin t reslve. The guidance sheets give references t apprpriate industry dcuments, and advises yu n whether GDN actin is required. GDNs can be cntacted via their custmer enquiry lines as per the table belw: Natinal Grid Gas 0845 835 1111 NGN 0845 634 0508 SGN 0800 912 1700 WWU 0800 9122 999 igt Refer t yur cmpany list f telephne numbers fr igts. 6
C. Ptential Asset Management Infrmatin Cdes Yu can carry n with yur wrk, but must reprt these issues t the GDN r igt using the apprpriate Netwrks enquiry line number, fllwing cmpletin f a smart meter exchange, if relevant. D. Appendix Items Ptential Issues fr cnsideratin that d nt need GDN r igt Interventin. Clur cding helps t distinguish these categries red fr emergency, amber fr remedial wrk, green fr asset cnditin issues and Blue fr nn GDN / igt related issues. Finding yur way arund the Guide There is a list f cdes, which is a quick reference fr all f the cdes. Alternatively yu may just want t flick thrugh the dcument; the guidance sheets are presented in the rder f the cdes, frm A t C. In additin, an appendix has been included which identifies ther ptential issues during the wrks n a metering installatin. These have been included fr cmpleteness. Hwever, there is n GDN r igt actin r interventin required against these issues. Principles f reprting General principles f reprting the cdes presented in this Guide include: Only reprt ne cde per MPRN. Where there are multiple defects at ne MPRN, reprt nly the mst serius ne. Ensure that safety and ther issues are prperly reslved. Yu must seek t reslve all prblems within yur remit. The GDN r igt will reslve all issues relating t Gas Transprter equipment nly at site during their attendance, r manage the reslutin f remaining issues thrugh subsequent visits. Nte that the cdes nly apply t Gas Transprter (GDN r igt) equipment. If an issue relates t supplier r custmer equipment, yu must fllw yur wn rganisatin s prcedures fr managing such ccurrences (such as issues identified in the appendix). Defects must be reprted t the GDN r igt as they arise; they shall nt be stred up and reprted in batches. When reprting a categry A defect by phne, yu will always be asked t prvide the fllwing infrmatin: Yur full name; Yur cntact telephne number; The categry f defect being reprted; Lcatin f defect, i.e. address including pstcde; 7
Meter Pint Reference Number (MPRN); Wh yu are wrking fr; Yur Gas Safe licence number, and The registered supplier. Develpments There are cntinuus develpments in industry, with areas f regulatin and guidance evlving. Yu will see in this dcument that reprts are nt expected under sme cdes. In ther instances, it will becme apparent that mre cdes are required, in rder t capture netwrk issues that are nt adequately cvered by this set f cdes. Gvernance This dcument has been develped and is maintained by the ENA and its members. Dcument references Dcuments that yu, and ther parties, shuld reference are identified in each Guidance Sheet. Plicy and Prcedures This dcument des nt supersede any GDN plicies r prcedures and is a guide nly fr Smart meter installers. Respnsibilities The GDN is respnsible fr all pipewrk frm the gas main up t and including the ECV device. The supplier is respnsible fr all apparatus after the ECV up t and including the meter utlet cnnectin. The custmer is respnsible fr everything after the meter and the meter bx, if fitted. 8
Categry A - Emergency List f Asset Cnditin Cdes Cde A01 A02 A03 A04 A05 A06 A07 Descriptin Gas Escape: visible signs f escaping gas r a smell f gas exists which is nt assciated with the dwnstream gas installatin. Suspected Fumes/Carbn Mnxide. Remved. Medium Pressure (MP) r Intermediate Pressure (IP) gas service internal t dmestic premises and built ver services. Emergency Cntrl Valve inperable r faulty (including failed let by test). Incrrect gas pressure measured at the utlet f the meter caused by the distributin netwrk. Remved. Categry B - Remedial wrk Cde B01 B02 B03 B04 B05 Descriptin Gas service pipe shws signs f severe crrsin. Old uncapped STEEL pipe f unknwn type at existing meter psitin. ECV is an ld style Thumb tap. Lw Pressure (LP) built ver services. Emergency Cntrl Valve falls t pen psitin, e.g. handle fitted incrrectly. Categry C Ptential Asset Management Infrmatin Cde C01 C02 C03 C04 C05 C06 C07 Descriptin Remved. Visible r expsed Plyethylene service pipe. Rising service pipe lcated within a cavity wall. Additinal live service discvered in dmestic prperty. Third party damage t gas service, e.g. signs f vandalism, r ther external factrs. Remved. Yellw cap instead f ECV handle. 9
Guidance Sheets 10
Categry A- Emergency Immediately reprt t the Gas Emergency Service by telephne (0800 111 999) Safety Actin cde A01 Cde Descriptin A01 - Gas Escape: visible signs f escaping gas r a smell f gas exists which is nt assciated with the dwnstream gas installatin. Actins: Where yu are infrmed f and/r yu detect an unexpected smell f gas, which has nt been identified dwnstream f the Emergency Cntrl Valve (e.g. the installatin passes a tightness test but there is a detectable smell f gas): Cntact the Gas Emergency Service t attend site and investigate within Emergency Respnse Standards f Service reprt cde A01. Fllw yur rganisatin s gas safe instructins but as a minimum yu shuld initiate safety actins n site, e.g. turn ff the gas, unless in a cellar where yu can smell gas, ventilate the prperty and evacuate if necessary. Remain n site if there is an immediate risk and the installatin cannt be made safe and secure. Dcument reference: OAMI: Gas Industry Unsafe Situatin Prcedures (Current editin). GDN: Gas Safety (Management) Regulatins 1996. Gas (Standards f Perfrmance) Regulatins 2005. IGEM/SR/29 (Institutin f Gas Engineers and Managers, Safety Regulatins) Dealing with gas escapes. 11
Categry A- Emergency Immediately reprt t the Gas Emergency Service by telephne (0800 111 999) Asset Cnditin Cde A02 Cde Descriptin A02 - Suspected Fumes/Carbn Mnxide. Actins: Where there are visual signs f spillage r leakage f prducts f cmbustin frm an appliance this shuld be dealt with in accrdance with the Gas Industry Unsafe Situatins Prcedures (Current editin). As lng as n ne has received medical attentin i.e. hspital attendance, ambulance called etc., r appears t be suffering frm the symptms f expsure t CO (see belw), meter wrk can cntinue. Only cntact the GDN where anyne has received medical attentin, see actins abve, r appears t be unwell with symptms that might be caused by expsure t Carbn Mnxide (CO): Advise that immediate medical attentin is sught and make the gas installatin safe, ventilate the prperty and infrm the Gas Emergency Service. Turn ff all appliances where safe t d s. D nt enter cellars. Cntact the GDN via the Gas Emergency Service reprt cde A02. Dcument references: Gas Safety (Installatin and Use) Regulatins 1998 L56 Apprved Cdes f Practice May 2011. Gas Industry Unsafe Situatin Prcedures (Current editin). IGE/GL/8 Reprting and Investigating f Gas related incidents. IGE/SR/29 Guidance: What is Carbn Mnxide Carbn Mnxide (CO) is a clurless, durless, tasteless gas which can be emitted by faulty appliances pwered by any fuel that burns. Signs f Carbn Mnxide Lk ut fr gas appliance burning with a yellw / range flame that is nrmally blue, extra cndensatin, pilt lights blwing ut, sting and / r yellw stains rund appliances. - flu-like symptms - chest r stmach pains - erratic behaviur - nausea and / r vmiting - breathlessness - feeling tired r drwsy - giddiness / headaches - visual prblems 12
Categry A- Emergency Immediately reprt t the Gas Emergency Service by telephne (0800 111 999) Asset Cnditin Cde A03 Cde Descriptin A03 - Remved. Intentinally Left Blank. 13
Categry A- Emergency Immediately reprt t the Gas Emergency Service by telephne (0800 111 999) Asset Cnditin Cde A04 Cde Descriptin A04 - Medium Pressure (MP) r Intermediate Pressure (IP) gas service internal t dmestic premises and built ver services. Actins: Cntact the GDN via the Gas Emergency Service t attend site and investigate reprt cde A04. Classificatin f this activity will require the GDN t arrange an appintment with the cnsumer t attend site. Fr LP plyethylene service that have been built ver, see B04. Yu may r may nt stay n site fllw yur rganisatin s gas safe instructins. Dcument reference: OAMI: Gas Industry Unsafe Situatin Prcedures (Current editin). Gas Safe Register, Technical Bulletin 003 Built ver plyethylene (PE) Lw and Medium pressure natural gas services Safety cncern. GDN: IGE/TD/4 (Institutin f Gas Engineers, Transmissin and Distributin) PE and steel gas services and service pipewrk. 14
Categry A- Emergency Immediately reprt t the Gas Emergency Service by telephne (0800 111 999) Asset Cnditin Cde A05 Cde Descriptin A05 - Emergency Cntrl Valve inperable r faulty (including failed let by test). Actins: Where yu identify an Emergency Cntrl Valve is at risk, ask the GDN (via the Gas Emergency Service) t attend site and investigate within Emergency Respnse Standards reprt cde A05. Classificatin f this activity will require the GDN t arrange an appintment with the cnsumer t attend site. If the ECV is inaccessible, refer t Appendix Reference 3 and fllw the actins described in that sectin. Dcument reference: OAMI: Gas Industry Unsafe Situatin Prcedures (Current editin). IGEM: IGE/UP/1B editin 3 (Institutin f Gas Engineers, Utilisatin) - Tightness testing and direct purging f small Liquefied Petrleum Gas/Air, Natural Gas and Liquefied Petrleum Gas installatins. 15
Categry A- Emergency Immediately reprt t the Gas Emergency Service by telephne (0800 111 999) Asset Cnditin Cde A06 Cde Descriptin A06 - Incrrect gas pressure measured at the utlet f the meter caused by the distributin netwrk. Actins: Given that the ther elements f the installatin are wrking crrectly such as the meter, the meter regulatr and the internal pipewrk: Where the incrrect pressure affects the safe peratin f any appliance, e.g. cmbustin and / r flame stability, and the cause is knwn nt t be the installatin pipewrk, meter and / r regulatr, cntact the GDN r igt via the Gas Emergency Service t attend site and investigate within Emergency Respnse Standards f Service reprt cde A06. Dcument reference: OAMI: Gas Industry Unsafe Situatin Prcedures (Current editin). Gas Safe Gas Safe Register, Technical Bulletin 071 Checking the perating pressure f the meter regulatr Natural gas. 16
Categry A- Emergency Immediately reprt t the Gas Emergency Service by telephne (0800 111 999) Asset Cnditin Cde A07 Cde Descriptin A07 - Remved Intentinally Left Blank. 17
Categry B - Remedial Wrk Actin may be required befre yu can cmplete yur wrk Asset Cnditin Cde B01 Cde Descriptin B01 Gas service pipe shws signs f significant crrsin. Actins: GDNs are interested in situatins where the gas service pipe and / r fittings shw physical signs f crrsin. Where pitting f pipe appears visually t be deeper than just pwdery rust it may be necessary t assess the remaining pipe wall thickness, particularly at areas where water can cllect and react with unprtected metal. Lk fr evidence f flaking r lse pipe wrapping and signs f lcalised pitting. NOTE D nt rub any live severely crrded pipes. In these circumstances the GDN r igt shuld be infrmed f the situatin as they will need t undertake a risk assessment prir t any meter wrks being undertaken. Refer t the current versin f the Gas Industry Unsafe Situatins Prcedure- sectin 3.1.1 If yu discver ther unsafe gas service terminatins, example belw, please infrm the GDN/iGT. Ntify GDN r igt - reprt cde B01. 18
Categry B - Remedial Wrk Actin may be required befre yu can cmplete yur wrk Asset Cnditin Cde B02 Cde Descriptin B02 - Old uncapped steel pipewrk f unknwn type at existing meter psitin. Actins: Ntify the GDN r igt - reprt cde B02. Classificatin f this activity will require the GDN t arrange an appintment with the cnsumer t attend site. Dcument reference: GDN: IGE/TD/4 (Institutin f Gas Engineers, Transmissin and Distributin) PE and steel gas services and service pipewrk. 19
Categry B - Remedial Wrk Actin may be required befre yu can cmplete yur wrk Asset Cnditin Cde B03 Cde Descriptin B03 - ECV is an ld style Thumb tap. Actins: Abrt yur meter installatin and ntify the GDN in this case. The GDN will arrange an appintment with the custmer t exchange the ECV. Dcument reference: BSI BS6400:1-2016 20
Categry B - Remedial Wrk Actin may be required befre yu can cmplete yur wrk Asset Cnditin Cde B04 Cde Descriptin B04 - Lw Pressure (LP) built ver services. Actins: Ntify the GDN r igt - reprt cde B04. Classificatin f this activity will require the GDN t arrange an appintment with the cnsumer t attend site. Dcument reference: OAMI: Gas Industry Unsafe Situatin Prcedures (Current editin). GDN: IGE/TD/4 (Institutin f Gas Engineers, Transmissin and Distributin) PE and steel gas services and service pipewrk. 21
Categry B - Remedial Wrk Actin may be required befre yu can cmplete yur wrk Asset Cnditin Cde B05 Cde Descriptin B05 - Emergency Cntrl Valve falls t pen psitin, e.g. handle fitted incrrectly. Actins: If the nly actin required in rder t reslve the issue is fr yu t re-fit the meter handle, then cmplete the activity. Where yu identify that the Emergency Cntrl Valve is at risk, in accrdance with the Gas Industry Unsafe Situatin Prcedures (Current editin), pass t the GDN t arrange an appintment with the cnsumer t rectify. Classificatin f this activity will require the GDN t arrange an appintment with the cnsumer t attend site. Dcument reference: OAMI: Gas Industry Unsafe Situatin Prcedures (Current editin). 22
Categry C- Asset Cnditin Ntificatin Cntinue with yur wrk and subsequently reprt the issue Asset Cnditin Cde C01 Cde Descriptin C01 - Remved. Actins: Intentinally Left Blank. 23
Categry C- Asset Cnditin Ntificatin Cntinue with yur wrk and subsequently reprt the issue Asset Cnditin Cde C02 Cde Descriptin C02 - Visible r expsed Plyethylene service pipe. Actins: Ntify the GDN r igt - reprt cde C02. There is n requirement fr GDN r igt wrks prir t cmpleting yur metering wrk. 24
Categry C- Asset Cnditin Ntificatin Cntinue with yur wrk and subsequently reprt the issue Asset Cnditin Cde C03 Cde Descriptin C03 - Rising service pipe lcated within a cavity wall. Actins: Fr Permali meter bx situatins fllw guidance in the Gas Safe Bulletin TB136. The GDN needs t knw abut any situatins where a service pipe rises in a cavity wall t a meter psitin/ecv. Usually this ccurs when an uter skin has been added t what was a single skinned prperty r when ther building wrks have been undertaken at the premises. The GDN des nt need t be infrmed f situatins where the service pipe runs thrugh a cavity wall taking the shrtest pssible rute r rises up thrugh a slid flr. If the issue is with the installatin pipewrk then make reference t the GIUSP. Fr assessment f Permali type husings then yu must make reference t Gas Safe TB136 t identify the cnfiguratin nsite and determine whether meterwrk can be undertaken. 25
Categry C- Asset Cnditin Ntificatin Cntinue with yur wrk and subsequently reprt the issue Asset Cnditin Cde C04 Cde Descriptin C04 - Additinal live service discvered in dmestic prperty. This situatin can ccur when tw individual prperties have been cnverted int ne. Actins: Ntify the GDN r igt reprt cde C04. N further actin required. 26
Categry C- Asset Cnditin Ntificatin Cntinue with yur wrk and subsequently reprt the issue Asset Cnditin Cde C05 Cde Descriptin C05 - Third-party damage t gas service, e.g. signs f vandalism, r ther external factrs. Actins: Ntify GDN r igt reprt cde C05. If smell f gas r signs f a gas escape fllw guidance n Guidance Sheet A01. Yu d nt need t stay n site unless yu reprt an escape fllw yur rganisatin s gas safe instructins. Dcument reference: GDN: Gas (Standards f Perfrmance) Regulatins 2005. IGEM/SR/29 (Institutin f Gas Managers and Engineers, Safety Regulatins) Dealing with gas escapes. 27
Categry C- Asset Cnditin Ntificatin Cntinue with yur wrk and subsequently reprt the issue Asset Cnditin Cde C06 Cde Descriptin C06 - Remved Actins: Intentinally Left Blank. 28
Categry C- Asset Cnditin Ntificatin Cntinue with yur wrk and subsequently reprt the issue Asset Cnditin Cde C07 Cde Descriptin C07 - Yellw cap instead f ECV handle. Actins: Fit a handle if yu have ne available. If n handle available: Ntify the GDN r igt reprt cde C07. N further actin required. The GDN will arrange an appintment with the custmer t fit a handle. 29
Appendix item Fr infrmatin N GDN r igt actin r interventin is necessary Reference Cde Descriptin 1 Reference 1 - Suspected vltage n utlet pipewrk fllwing initial check with apprpriate vltage indicatr. This is nt a GDN r igt Issue. Actins: N GDN r igt actin required. Fllw yur cmpany prcedures when dealing with a live vltage indicatin. The fault current may be travelling frm utside the premises and the lcal DNO may need t be infrmed. Dcument reference: General: Gas Safety (Installatin and Use) Regulatins 1998 L56 Apprved Cdes f Practice May 2011. OAMI: Gas Industry Unsafe Situatin Prcedures (Current editin) Nte: The abve dcuments cver crss-bnding issues. 30
Appendix item Fr infrmatin N GDN r igt actin r interventin is necessary Reference Cde Descriptin 2 Reference 2 - Blcked medium pressure regulatr vent pipe r inapprpriately installed vent pipe, e.g. pipe end submerged. This is nt a GDN r igt Issue. Actins: Fr medium pressure regulatrs that are part f the meter installatin, it is the Supplier s and / r their Meter Asset Manager s respnsibility t rectify the situatin. A ptential slutin wuld be t cnsider mving the vent and / r meter installatin. An alternative slutin wuld be a service alteratin, which is cntestable wrks. Fr gas service pipe alteratins cntact the GDN, igt r a suitable Gas Industry Registratin Scheme (GIRS) Registered UIP (Utility Infrastructure Prvider). Dcument reference: OAMI: Gas Industry Unsafe Situatin Prcedures (Current editin). BSI: BS6400-2: Sectin 6.6 Vent pipes. 31
Appendix item Fr infrmatin N GDN r igt actin r interventin is necessary Reference Cde Descriptin 3 Reference 3 - Meter r Emergency Cntrl Valves psitin enclsed and installer is unable t carry ut wrk. This is nt a GDN r igt Issue. Actins: Fllw Gas Industry unsafe situatin Prcedures (Current editin). The custmer r landlrd may need t mve fixtures and fittings t allw full access t the ECV. The custmer r landlrd may need t request a service pipe alteratin t reslve this issue - these are cntestable wrks. Fr gas service pipe alteratins cntact the GDN, igt r a suitable Gas Industry Registratin Scheme (GIRS) Registered UIP (Utility Infrastructure Prvider). Dcument reference: General: Gas Safety (Installatin and Use) Regulatins 1998 L56 Apprved Cdes f Practice May 2011. 32
Appendix item Fr infrmatin N GDN r igt actin r interventin is necessary Reference Cde Descriptin 4 Reference 4 - Unable t wrk n r replace meter due t insufficient space r psitining f meter. This is nt a GDN r igt Issue. Actins This is nt a GDN r igt issue. The custmer r landlrd may need t mve fixtures and fitting t allw full access t the meter. The custmer r landlrd may need t request a service pipe alteratin t reslve this issue - these are cntestable wrks. Fr gas service pipe alteratins cntact the GDN, igt r a suitable Gas Industry Registratin Scheme (GIRS) Registered UIP (Utility Infrastructure Prvider). After cnsultatin with the Meter Asset Manager, cnsider the ptin f extending the meter inlet t allw relcatin f the meter. Dcument reference: General: Gas Safety (Installatin and Use) Regulatins 1998 L56 Apprved Cdes f Practice May 2011. 33
Appendix item Fr infrmatin N GDN r igt actin r interventin is necessary Reference Cde Descriptin 5 Reference 5 - Missing Emergency Cntrl Valve handle. This is nt a GDN r igt Issue. Actins: Please ensure that yu carry spare handles at all times. Fit a replacement handle. N cntact needed with the GDN r igt unless a specific handle is nt available. If n handle is available fr this type f ECV then the Emergency Cntrl Valve is at risk, in accrdance with the Gas Industry Unsafe Situatin Prcedures (Current editin), pass t the GDN t arrange an appintment with the cnsumer t rectify. Als see B05. Classificatin f this activity will require the GDN t arrange an appintment with the cnsumer t attend site. Dcument reference: General: Gas Safety (Installatin and Use) Regulatins 1998 L56 Apprved Cdes f Practice May 2011. Ofgem: https://www.fgem.gv.uk/fgem-publicatins/42303/ecv-handles-4-jun-2009-pdf 34
Appendix item Fr infrmatin N GDN r igt actin r interventin is necessary Reference Cde Descriptin 6 Reference 6 - Crssed meters, i.e. flat envirnments. This is nt a GDN r igt Issue. Actins: Supplier(s) t reslve. N GDN r igt actin required. Nte: An administrative prcess, initiated by the Supplier, will fllw the identificatin f a crssed meter t address the custmer s ptential billing issues that may arise. Dcument reference: General: Gas Safety (Installatin and Use) Regulatins 1998 L56 Apprved Cdes f Practice May 2011. 35
Appendix item Fr infrmatin N GDN r igt actin r interventin is necessary Reference Cde Descriptin 7 Reference 7 LP Gas meter installatin in unacceptable clse prximity t electricity supply r meter (150mm minimum clearance). This is nt a GDN r igt Issue. Actins: Dcument reference: As specified in BS 6400:1, ensure that a suitable insulating material is placed between the existing gas meter and the electricity service r electricity meter. N ntificatin required t the GDN r igt. General: Gas Safety (Installatin and Use) Regulatins 1998 L56 Apprved Cdes f Practice May 2011, Regulatin 12(3). BSI BS 6400:1 2016. 36
Appendix item Fr infrmatin N GDN r igt actin r interventin is necessary Reference Cde Descriptin 8 Reference 8 - Meter fitted n sle means f escape rute. This is nt a GDN r igt Issue. Actins: Dcument reference: Refer t yur cmpany prcedures if yu find this issue. Reference L56 ACOP 12(1)-(2). An alternative slutin t the abve guidance r relcating metering installatins wuld be a service alteratin, which is cntestable wrks. Fr gas service pipe alteratins cntact the GDN, igt r a suitable Gas Industry Registratin Scheme (GIRS) Registered UIP (Utility Infrastructure Prvider). BSI: BS 6400:1 2016. 37
Appendix item Fr infrmatin N GDN r igt actin r interventin is necessary Reference Cde Descriptin 9 Reference 9 - Damage t meter bx r water ingress prblems. If yu find a damaged meter bx r a semi-cncealed bx full f water This is nt a GDN r igt issue. Actins: This is a matter fr the Supplier r custmer t reslve. N cntact with the GDN r igt is required. The Supplier r custmer may need t request a service pipe alteratin t allw the damaged meter bx t be replaced, e.g. inset meter bx damage expsing cavity in wall service alteratins are cntestable wrks. Fr gas service pipe alteratins cntact the GDN, igt r a suitable Gas Industry Registratin Scheme (GIRS) Registered UIP (Utility Infrastructure Prvider). Dcument reference: BSI: BS 6400:1 2016. AMO reference: https://www.meterperatrs.rg.uk/faqs 38
Appendix item Fr infrmatin N GDN r igt actin r interventin is necessary Reference Cde Descriptin 10 Reference 10 - Risk t the general public r custmer due t meter bx psitin, e.g. semi cncealed in public ftpath. This is nt a GDN r igt Issue. Actins: The Supplier r custmer shall reslve as necessary. The Supplier r custmer may need t request a service pipe alteratin t allw the meter bx t be repsitined these are cntestable wrks. Fr gas service pipe alteratins cntact the GDN, igt r a suitable Gas Industry Registratin Scheme (GIRS) Registered UIP (Utility Infrastructure Prvider). Dcument reference: BSI: BS 6400:1 2016. 39
Appendix item Fr infrmatin N GDN r igt actin r interventin is necessary Reference Cde Descriptin 11 Reference 11 - N visible evidence f equiptential bnding at gas meter installatin r n utlet pipewrk immediately inside the prperty. This is nt a GDN r igt Issue. Actins: r This is nt a GDN r igt issue. Fllw the prcedure in the Gas Industry Unsafe Situatin Prcedures (Current editin). Dcument reference: Gas Industry Unsafe Situatin Prcedures (Current editin). BSI: BS 6400:1 2016. BS 7671:2008+A3:2015. 40
Appendix item Fr infrmatin N GDN r igt actin r interventin is necessary Reference Cde Descriptin 12 Reference 12 - Adverse envirnment fr the lcatin f the gas meter installatin, e.g. t ht, cld, and wet, etc. This is nt a GDN r igt Issue. Actins: This is a matter fr the Supplier t reslve. The Supplier r custmer may need t request a service pipe alteratin t allw the meter installatin t be repsitined - service alteratins are cntestable wrks. Fr gas service pipe alteratins cntact the GDN, igt r a suitable Gas Industry Registratin Scheme (GIRS) Registered UIP (Utility Infrastructure Prvider). Dcument reference: BSI: BS 6400:1 2016. 41
Appendix item Fr infrmatin N GDN r igt actin r interventin is necessary Reference Cde Descriptin 13 Reference 13 - Meter Installatin believed t be at high risk f physical damage. This is nt a GDN r igt Issue. Actins: This is a matter fr the Supplier t reslve. The Supplier r custmer may need t request a service pipe alteratin t allw the meter installatin t be repsitined - service alteratins are cntestable wrks. Fr gas service pipe alteratins cntact the GDN, igt r a suitable Gas Industry Registratin Scheme (GIRS) Registered UIP fr service alteratin services. Dcument reference: BSI: BS 6400:1 2016. 42
Appendix item Fr infrmatin N GDN r igt actin r interventin is necessary Reference Cde Descriptin 14 Reference 14 - Vegetatin grwth preventing access t the meter. This is nt a GDN r igt Issue. Actins: This is a matter fr the Supplier r custmer t reslve. 43
Appendix item Fr infrmatin N GDN r igt actin r interventin is necessary Reference Cde Descriptin 15 Reference 15 - Electrical Insulatin Jint fitted after the Emergency Cntrl Valve. This is nt a GDN r igt Issue. Where an electrical insulatin jint is fitted dwnstream f the ECV (in a legacy installatin), this shall nly be remved with the cnsent f the Netwrk Operatr and where a safe methd f wrking has been established. Actins: Please refer t yur cmpany prcedures regarding Insulatin Jints. Dcument reference: BSI: BS 6400:1 2016. BS 7671:2008+A3:2015. General: ENA IGEM: Gas Safety (installatin and use) Regulatins 1998. Engineering Recmmendatin G12 Issue 4 Amendment 1 December 2015 Requirements fr the Applicatin f Prtective Multiple Earthing t Lw Vltage Netwrks. IGEM/G/5 Editin 2 dcument. 44
Appendix item Fr infrmatin N GDN r igt actin r interventin is necessary Reference Cde Descriptin 16 Reference 16 - Old style nn typical ECV is encuntered that is nt t current British standard (BS746 r BS21). This is nt a GDN r igt Issue There are many types f ECV currently in peratin which are different in style t the current British Standards BS21 and BS746. One example is shwn in the pictures belw. Pictures abve shw an example f an ECV which will require an adaptr the ECV des nt require changing if it is fully functinal and nt leaking Prvided that these ECV s are nt letting by, leaking r inperable (i.e. they can be turned n and ff) they are acceptable and d nt require exchanging. Actins: Suppliers and installers need t carry the apprpriate adaptrs t allw them t make cnnectins t these ECV s. In mst instances it will nt be necessary t exchange the ECV. Picture abve shw an example f tw types f ECV adaptr t allw the meter install t take place bth with a BS746 utlet thread and 22mm capillary the ECV des nt require changing if it is fully functinal and nt leaking. 45
Appendix item Fr infrmatin N GDN r igt actin r interventin is necessary Reference Cde Descriptin 17 Reference 17 - Medium r Intermediate Pressure ECV. This is nt a GDN r igt Issue There are many gas services perating at medium pressure terminating with an apprpriate ECV. It shuld be nted that in sme areas intermediate pressure ECVs will be encuntered. Prvided that these ECV s are nt letting by, leaking r inperable (i.e. they can be turned n and ff) they are acceptable and d nt require exchanging. Actins: Suppliers and installers need t carry the apprpriate adaptrs t allw them t make cnnectins t these ECV s. In mst instances it will nt be necessary t exchange the ECV. The pictures abve d nt shw the full range f suitable adaptrs available. 46
Appendix item Fr infrmatin N GDN actin r interventin is necessary Reference Cde Descriptin 18 Reference 18 - IGT LP sites utilising Medium Pressure ECV s. This is nt a GDN Issue Cntact the crrect igt t reslve this issue. 47