HealthandSafetyGuidancefor ElectricalContractors

1 HealthandSafetyGuidanceforElectricalCont ractorsPr oce dur es for the isolatio n and re -ene rgi sationof ex isti ng electrica l in sta llat ionsTh is document out li nes th e pro ced ure s ava ilabl e to ele ct rica l con tr acto rs in the UK for th e isol ati on an d re-energisation of exist ingel ec tr ica l ins tallations by the re mova l and repl ace mentof dis tribut ion cu t-ou t ec tr ic al con trac tor s requ ire th e ele ctric ity supplyto be iso lated by the cut-outfu se whenthey rewo rki ng on or repla cing thecust ome r s cons umerunit (f use bo ard) and/ or ta ils con nec ting the mete r to th e consumerunit . This wo uld normallybe plannedwor k, but couldsometimesbe requ ired as an urg ent isola tion to repl ace da magedor faultyequip me l co ntra ct ors must not br eak metalse al s or pull cut-outfu se s of an existing el ectri ca l in stal lationby breaking a metalseal and remo ving a cu t-ou t fusemus t onlybe carriedoutby authorise d Dist ribution Networ k Operator (DNO)or an el ectrical contractor interferes withthe se rvic e equipmentor meterin g they ll be reportedto thei r professionalbod y optio nsTh ere are four options for isola tin g th e sup ply (n ot all opti ons ar e av ai labl e in ever y area ):1.

2 Conta ct npo wer to arr an ge for an isola tion /r e-e ne rgi sa tion vi sit2. Cont ac t the Distri bu tion Net work Op era tor (D NO) to arra nge fo r an eme rgencyisolation3. Arra ng e for the insta lla tion of a do uble -pole is olato r switch4. Hir e a Meter Opera tor Ser vice En gine er fo r a fu ll day or half dayOp ti on 1 - Co nt act npowerto ar rangefor an isol ation/re-energisati onYo u sh ould co ntac t npo wer if we r e the re giste red su pplierfor the pr emis es whe re you want the supplyisolatedor re -energi sed. You can ca ll our ded ica ted tea m on0845166 3494. We re open fro m8amto 6pmMon day to Friday. We l l no rmallybe able to arra nge an appointment wi thi n 10 wo rk in g days of your reque st .If you don t kno w who the supplie r is th en yo u sho uld ge t th is info rma tion fr om th e DistributionNetworkOperator(DNO ). Al l DNOshav e ac ce ss to the Electric ity Ce ntra l Onlin e Enqu iry Servi ce (EC OES ), also kn own as the MeterPointAd ministratio n Se rvi ce (MPA S).

3 Cont ac t detailsfor ea ch DNO ar e listedat th e end of th is documen ll ar rang e for our appo inted Mete r Opera tor to atten d the site and eit her re moveor re placethe cut-outfuse to isolateor res toreth e su pply. You can arrange both the de -en ergisean d re-e ne rgi se visits dur ing one phon e call. You can arrange the de- en ergiseand re-e ne rg ise visi ts for di ffe re nt ti mes on the sameday where this is required. We ca n off er an app oi nt mentwith in a two -hou r time perio must receivea Cert ifi ca te of Complia nc e by post or fax befo re we ll as k the Meter Operatorto re-energisethe supp ly. Inex cept io nal ci rcumstance s we mightask the Meter Ope rato r to co ll ec t the sign ed Cert ificateof Co mpliance on site beforere -en erg isi ng . We will not energis e a supplywith ou t a si gned Ce rtifi ca te of Co mpl e Meter Op eratorwill un de rta ke the site visi ts, as arra nge d, to isol ate or re-energise the supplyfor you.

4 The MeterOperatorwil lch ec k both the cut-out and mete r termi nat ion s and sea l bot h itemswi th high sec urity metalseals wh en the job is ere is a charg e for this se rvic e. You ll be ad vise d of the cos t whe n you ca ll to arrangethe visit(s).Timedappointmentsand shortnot ic e appo in tments(sa me day or ne xt day) ar e moreex pen u must no t br eak me ta l cu t-out se als or pul l cut-out fuse s yours el on 2 - Cont act the DNOto arra nge for an emergencyisol ati onYo u ca n co ntact the loc al DNO wh ere you ne ed the su pply isola ted in an emerg enc y situation, wher e th ere s immediatedangertope rsons or pr opert y. The DNO will cha rge fo r al l vis its mad e that are not true list of DNO emergenc y contactnum ber s is inc ludedat th e en d of this ll ne ed to con tact us to ar ra nge for re-energisati on fol lowing an emergencyisolationby the ti on 3 - Arra nge for the ins ta llat ion of a double-pol e isolatorswi tchYo u, or yo ur custo mer , ma y dec ide tha t the easie st way to deal wi th the isolat ion is to have a double-po le (DP) iso lator switchfittedbet weenthe meterand the cons umerun it.

5 Wh en ins ta lled th e DP swi tch becomespart of thei r electrical installati on. The adva ntageof hav ing a DP swit ch in sta lle d is that any contr acto r ca n isola te the suppl y at an y ti me wit hout th e need to contactth e supplier andar rang e for a vis it by the Meter Ope rato r. Many lo cal au th oriti es hav e reco gnisedthe valu e of havingan isolator switc h on site,esp eciall y where urg ent re pa irs to the in stalla tion are re quir ed, and hav e been order ing thesefor man y Meter Operators of fer a do uble -pol e switchin stalla tion se rv ice. As pa rt of the insta llati on, both the cut-outand meterter minatio ns will be ch ec ke d by th e Mete r Opera tor and both itemswi ll be seale d wi th high securityme tal se u sh ould co ntac t th e Mete r Opera tor direc tly for this serv ice. A lis t of npower-appointed MeterOperatorsis incl ud ed at the end ofth is doc umen t.

6 This li st ind ica te s whe the r the Me te r Opera tor pro vi de s this serviceor ti on 4 - Hire a MeterOperator ServiceEngineerfor a half day or ful l day periodWh ere you r e und erta kin g la rge scal e pr oje cts wi th a high nu mbe r of iso lations and re- energisati ons it may be cheaperan d moreco nvenient to hire a Mete r Oper ator Ser vice En gine er. Kno wn as MOS E hire, the serviceprovidesa dedicatedpersonto wo rk inco nj unct io n with th e co ntra ctor for eith er a full da y (8 hou r) or hal f day (4 hour) e engineerwi ll on ly be abl e to iso late an d re -en ergis e suppl ies wh ere they rethe ap pointedMete r shouldcon firmwit h the MeterOpera to r which suppliers they reapp ointedby be for e you ask themto do the wor u sh ould co ntac t th e Mete r Opera tor direc tly for this serv ice. A lis t of npower-appointed MeterOperatorsis incl ud ed at the end ofth is doc umen t.

7 The li st ind ica tes whe the r the Me ter Oper ator pr ovid es thi s ser vic e or st rib uti on Net workOperator co ntact num bersDistributionNetworkOperator(DNO)Cont actnumberDNOcontactnumberforfor ECOES emergencies(Option2)NEDL- NorthernElectric0845601 32680800668 877 YEDL YorkshireElectricity0845330 08890800375 675 CentralNetworksWest Midlands0845603 06180800328 1111 CentralNetworksEast East Midlands0845603 06180800056 8090 UnitedUtilities Norweb0800195 14520800195 4141 ScottishPower SouthernScotland0845270 91010845272 7999 ScottishPower Manweb0845270 91010845272 2424 WesternPower SouthWales0845601 59720800052 0400 WesternPower SouthWest England0845601 59720800365 900 Scottish& SouthernEnergy NorthScotland0845601 00170800300 999 Scottish& SouthernEnergy Southern0845601 00170845770 8090 EdF Energy East of England0870196 30820800783 8838 EdF Energy London0845600 01020800028 0247 EdF Energy SouthEast England0845601 54670800783 8866npow er app oi nte d Met er Operators and contactdetailsDistributionNetworknpowera ppointedInstallationofMOSE hireMeterOperatorOperator(DNO)

8 MeterOperatorDP isolatorsserviceavailable?contactfor theseservicesavailable?(Option3)(Option4 )NEDL- Nor the rn ElectricMete rP lusYesYes0113 232 5476 YEDL Yorks hire ElectricityMete rP lusYesYes0113 232 5476 Cen tr al Net wo rks Wes t Mi dla ndsMete ring Se rv ic esYesYes (but for mal processWill not accep t customerLi mi tedmu st be agre ed)requ es ts, all re questsmustcome from sup plie rCen tr al Net wo rks Eas tMete ring Se rv ic esYesYes (but for mal processWill not accep t customer East Mi dla ndsLimitedmust be agreed)re qu ests, all reque sts mu st com efrom sup plie rUni ted Uti lit ies Norw ebUnitedUt ilit iesYesNoAll requests must come fromsup plie r, apa rt from direc tco ntra cts with lo cal coun ci ls wh opro vid e UU wit h lis ts of ad dress esthat requir e iso lato rs an d we bil l asco mp le tedScott is h Powe r Souther n Scot la ndDa ta se rveYesYesWill not accep t customer req uests,all requ ests must come fromsup plie rScott is h Powe r ManwebDa ta se rveYesYesWill not accep t customer req uests,all requ ests must come fromsup plie rWes tern Pow er Sout h Wal esOnstr ea mYesYesWill not accep t customer req uests.

9 All requ ests must come fromsup plie rWes tern Pow er Sout h We st Eng la ndWestern Powe r Distri butionYesYes0845 60 1 3341 Scott is h & Sou th er n Ener gySSENoNoN/ A Nort he rn Scot la ndScott is h & Sou th er n Ener gy So uthe rnSSENoNoN/ AEdF Ene rgy Ea st of Eng lan dEdF Ener gyNoYes (but for mal processWill not accep t customermu st be agre ed)re quests,all req ue sts must com efrom sup plie rEdF Ene rgy Lo ndonEdF Ener gyNoYes (but for mal processWill not accep t customermu st be agre ed)re quests,all req ue sts must com efrom sup plie rEdF Ene rgy Sou th Ea st Eng landEdF Ener gyNoYes (but for mal processWill not accep t customermu st be agre ed)reques ts, all requestsmust comefro m supplier