Requests for Access
Contents
1. ecceeeeeeeeeeeeeeeeeeeeeeeeeenees 17 5 5 10 Requesting officer visissrcssencessverseressersiswrsaseisastinadasnnenianabundeiannsnenandnebudamnenntes 17 920 1 te ASSESSING OMICS sisenes aE AEAEE EE EARE 17 5 6 Documents supporting RFA S ccccceececeeeeeeeeeeeeeeeeeeeee sees eeeseeeeseeeesaeeeseeesaaeesseeesseeeseneegs 17 Be iF FOCESSING REA Sussseossucenecconsrcnsiquonsecssuseonancannevsvisntuned ebadabosedanetninpadumduabarhieeaduaudeduauaieehahunntemans 18 6 1 Assessment of RFA S eccsecersrqsteecanesenesescosancesenosssoamciandsasdenbasendcnahauadaaadsoadanaieeieceusnonsnenmenane 18 6 2 RFA received less than 28 days in AAVANCE cccceeeeceeeeceeeeceeeeseeeeseeeeseeeeseeesaeeesaeeesaaees 18 De ANE O e A A A AA A E 18 6 2 2 Submitting RFA s in urgent circumstances sesessseerseerrsrrrerrrrrrerrerrrerrrerrrne 19 Goo Lo EN O a E E eee 19 6 3 Requests for work received from CUSLOMETS cccceceeceeeeceeeeceeeeceeeeeaeeseeeesaeeesaeeesseeesaaees 19 Fe PION OW A aa E EE E E E E E i A A A E 19 Requests for Access GD SR G2 120 Revision No 2 Page 2 of 22 hy TransGrid 7 1 1 AVERI esos scwocamcatiocacoscbenceecd soccer scree soca nee Ge senestnastca tose ce ssanssssesssoesoeussaea 19 eee 6 ce Ce ne E E 19 Deano PWV 1S aoe rsoets gas nemsumoaamonenones anes ness anosnasaoasasseceneasasasqeasacasesascsaessse2se cose sere eee sees 19 7 2 Verification of work details re sce tpscintivciet2. Apparatus and Work Descrcritpions and section 5 3 6 Access Services amp T Operations ypas 9 Implementation This procedure is to be implemented in conjunction with the implementation of TransGrid s Power System safety Rules It will be available as a resource published on the Wire 10 Monitoring and Review The Manager Health Safety and Environment is responsible for the ongoing monitoring and review of the documents associated with the Power System Safety Rules This can include but is not limited to a Requesting regular feedback on the effectiveness of procedures and work instructions Appropriate feedback tools include focus groups and online assessments b Where a change has occurred in our processes and c Recommendations arising from incidents 11 Attachments Attachment A Request for Access Form Sample Requests for Access GD SR G2 120 Revision No 2 Page 21 of 22 4y TransGrid Attachment A Request for Access Form Sample Assessing officer use only 4y TransGrid Request for Access RFA No 4 Requesting Officers Ref Authorised Person in Charge DESCRIPTION OF APPARATUS DESCRIPTION OF WORK Work Order ACCESS REQUIRED X APPROPRIATE BOXES RELEVANT INFORMATION X APPROPRIATE BOX 1 Is listed HV apparatus required out Of ServiCe c ce eeee ee eee i SSS O OSOE 2 Breaking of HV conductors involved ssssesseessssrerrrrsrrrrrrsre Lk 3 Phas
3. for the System Operator to utilise The requestor shall review the RFA prior to the issue of any associated Access Authority 5 4 RFA Approved Templates in THEOS For various groups in field services ie Susbstations Mains Lines Communications Secondary Systems Protection there is a set of approved RFA templates that have been developed in conjunction with Network Operation s planning staff and key planning staff in field services and are avialable in THEOS These are for use when performing normal maintenance activities e g Circuit Breaker Maintenance Transformer Protection Maintenance Insulator Replacements Inter trip Maintenance The templates are linked to standard jobs in Ellipse and will automatically load when creating an RFA in THEOS if the outage in THEOS is generated from a job in Ellipse which is linked to one of these RFA templates The approved templates can also be selected when creating an RFA on an outage that does not have this linkage The expectation is that the format and content of RFAs submitted will be consistent with the approved template for the maintenance activitiy being undertaken If there is a requirement to submit an RFA not consistent with the approved template this should be raised with the relevant work group planner and or Network Operations Planning staff in order to initiate a review of the approved template Requests for Access GD SR G2 120 Revision No 2 Page 8 of 22 TransGrid 5 5
4. RFA generated within The Outage System TNEOS cccccecccceeeeceeeeceeeeseeeeseeeseeeeseeeesaes 8 Te TUN FU Sa ee crete teeter E E sass vente ake sesiesipatsteuiwieecies 8 5 3 Submission by the System Operator on Requestors Behallf cccccceeeeeeeeeeeeeeseeeeneeeeees 8 5 4 RFA Approved Templates in THEOS ccccccccseeeeeeeeeeeseeeeeeeeeeseeeeseeeeesseeeesseeeesseeeesseneeeas 8 5 5 Preparation of AN RFA cssc aa axteeatensdeads 9 5 5 1 Network Operations office USC cc ceccceeccceececeeeeneeceneeeeeeeesseeessaeesseeessaeesseeessaees 9 5 5 2 Requester s reference cccccccccsecccssceceeeeceeeeseeeeeseeeeseeeeseeeeseeeseeeeseeeeseeesieeesenens 9 5 5 3 APLOCAION Call SIQMvoscscscsasusnsssusuSasusesasasuSasasesseRadeduintuiudncudminauantadudiiudadudnsiduniedebeds 9 UMN SUS ss se ees cescpeseeneeccmecnnearceasenc dad aiasanaaadanedansdaansaeaintadeaeiesieagnnntesnenat 9 5 5 5 Apparatus and work CeSCTIiIPtiON ccccceceeeeeseeeeceeeseeeeseeeseeeeseeeeseneeseneeseeeesees 10 55 6 Typo Of ACCOSS wicisincsisraisersaaverseressensdennssannudonndennhennhoanianaionndenehonbossiahiaiamatenenanncns 11 5 5 7 Authorised Person in Charge APIC c ccceseeeeseeeeeeeeeeeeeeseeeeeeeeseeeeseneesaneesaes 12 5 58 RElEVANL INTOMM AU ON rscecscccscscmsscqsaccusccusscusscusssesscnanesaladniaiodetadanodahodesaiaceiecedcedesanns 12 5 5 9 Coordinate with other areas customers SECTIONS
5. a PRI that has already been prepared If approved each such additional request shall be identified by the assessing officer by clearly writing or stamping the words Added Request on the form before passing it to the officer writing or amending the HVPRI Refer to OM 973 and GD SR G4 155 Field copies of added RFA s shall be forwarded to the switching location prior to the day on which the work is to commence When an urgent additional RFA is received a copy of the form shall be faxed or electronically mailed to the relevant field location after approval In the absence of fax or e mail the controller may provide details via telephone to the switcher at the location who shall copy them onto a blank RFA form The copy of the added request shall be attached to the field copy of the HVPRI Requests for Access GD SR G2 120 Revision No 2 Page 20 of 22 TransGrid 8 Change history Revision 0 e Supersedes GD SR G2 003 e RFA process now includes Cable Access Authority e Process flowchart included Lionel Smyth EGM Network Services amp Operations Revision 2 e Full review of document links organisation references e Clarified use of single RFA for multiple services e Added expectation to use approved RFA templates for common maintenance activities Ken McCall Manager Health Safety and Environment 1 Lionel Smyth Meon es e Clarified Definitions on information required in section 5 3 5 EGM Network aa
6. be coordinated so that on completion of the work Ree EE OEE the apparatus is fully serviceable Note The requesting officer of the RFA is the planner in charge of the work party As such it is that person s responsibility to ensure that working parties will be organised for coordination All subject groups are to be identified on the RFA The approving officer and the PRI preparer must ensure that Network Operations processes cover the required coordination of work parties 5 5 10 Requesting officer SECTION PHONE The requesting officer of the RFA should insert the nominated details to allow feedback and follow up by Network Operations The date on which the request is submitted is to be given 5 5 11 Assessing officer Assessing officer use only Approved by Remarks An officer with the appropriate authority will assess the RFA and sign as approved and insert the approval date Remarks in relation to any special HVPRI requirements coordination requirements and contacts contingency plans link openings etc that have been investigated and which are material to the outage and HVPRI should be inserted Additional pages should be attached if required for example to detail a contingency plan 5 6 Documents supporting RFA s For field work an approved earthing plan shall be submitted with the RFA Where the work nominated on an RFA includes connection of new or altered HV apparatus to the HV System both a
7. completed Request for Connection to HV System form and a completed Advice of Alteration form refer GD SO G2 001 must be sent to Network Operations when the RFA is prepared Where the work nominated on an RFA involves the addition or alteration of LV circuits associated with HV apparatus a completed Advice of Alteration form must be sent to Network Operations when the RFA is prepared Requests for Access GD SR G2 120 Revision No 2 Page 17 of 22 TransGrid 6 Processing RFA s On receipt of an RFA Network Operations staff shall ensure that a unique identifying number is assigned to every approved RFA Network Operations will then confirm details of requested outages with previous outage programme data and ensure relevant information is transferred to AEMO in a timely manner for advice to market participants 6 1 Assessment of RFA s Each RFA submitted shall be assessed by an appropriately authorised Network Operations officer and if valid shall be processed and approved in accordance with equipment outage and coordination procedures several significant points for attention are listed below e Network Operations shall ensure that all relevant information is included on the RFA Incomplete RFA s shall not be approved pending review and resubmission by the originator e Each approved RFA shall be signed and dated by the assessing officer e When assessing an RFA the system implications shall be considered If difficu
8. in Charge shall be entered Optionally the person s name can be inserted When the APIC is a protection technician all system security isolations associated with the request will be delegated in accordance with the requirements of OM412 The APIC shall be common on concurrent RFA s with testing HV access 5 5 8 Relevant information This section of the form has 14 questions that must be answered to ensure correct working conditions are provided by the PRI Nominate either Yes or No by placing Xs in the boxes provided for every question Additional information section is to be used where insufficient space is available List items should be dealt with as indicated Is listed HV Apparatus required out This refers to the equipment in the HV description of of service apparatus Do not write any details against this question all the necessary information should be in the description of apparatus If this question is answered No a HVPRI will not generally be prepared exception is for system security isolations for communications work and the APIC will be responsible for providing safety isolations LVMPRI and system security isolations PMW Requests for Access GD SR G2 120 Revision No 2 Page 12 of 22 hy TransGrid 2 Breaking of HV Conductors No additional information required 9 Involved For work in a substation the location of the proposed breaks shall be provided to ensure access authority ear
9. the RFA on the HVPRI correctly represents the work to be carried out The work party should copy the RFA for reference and advise the originator so that the logistics of RFA distribution can be improved If the work party requires the copy of the RFA attached to the HVPRI to be modified to match its copy of the RFA the changes shall be advised to the controller and either a If there are minor changes only such as typing or nomenclature corrections etc and the suitability of the HVPRI is not in question the RFA copies on the control room and field copies of the HVPRI shall be altered to match the work party s RFA and the HVPRI can proceed or b If there are major changes such as equipment designations access authority requirements etc a copy of the new RFA shall be sent to the controller so that the HVPRI can be checked for suitability Then i If the HVPRI is suitable the old RFA shall be boldly marked superseded and the new RFA attached to control room and field copies of the HVPRI in addition to the originals and the HVPRI can proceed The original RFA for which the HVPRI was prepared should not be removed from the control room or field copy of the HVPRI or ii If the HVPRI is not suitable it shall be withdrawn and the whole of the request reassessed as if it were a new request for access 7 2 2 Additional RFA s received after preparation of PRI RFA s shall be assessed as described in section 6 even if they relate to
10. the work is responsible for making appropriate arrangements for all impacted services not associated with the operation of the power system Common examples where this question is answered yes e Transducer calibration or e Communications equipment outages LV Circuits Affecting In Service No additional information required 2 Apparatus will be Isolated lsolations the APIC intends to take to prevent in service apparatus from being affected by the work are to be specified lsolations performed as part of an LVMPRI are not considered at this question unless those isolations affect in service plant Predominately this question is used when system security isolations are required as part of the work For system security isolations respond Yes if the APIC will perform them and No if the isolations are to be specified in a HVPRI When answered Yes the detail should be PMWI xxx where xxx are the system security isolations to be undertaken For example PMWI LBU and CB Trips When this question is Yes and the APIC is a protection technician system security isolations for the work listed on the RFA will be delegated not included in the HVPRI as permitted in OM412 Some examples of answering Yes at this question e A transformer differential balance by a protection technician delegated authority or e Work on LV supplies to fans and pumps on an S transformer not system security Some examples of ans
11. HVPRI is produced if required after which the outage process can proceed HVPRIs shall be produced by a person authorised category 2 3 A HVPRI is required for e Out of service work either High Voltage or Low Voltage Mechanical on apparatus in the charge of the controller or e In service work on apparatus in the charge of the controller where system security isolations remain the responsibility of Network Operations In accordance with the HVPRI e A Low Voltage Mechanical Preparation and Restoration Instruction LVMPRI shall be used to perform appropriate safety isolations LVMPRI s are controlled locally in accordance with Operating Process Work on Low Voltage or Mechanical Apparatus e A Protection Metering Withdrawal Instruction PMW1 shall be used to perform system security isolations in accordance with Grid Standard GM AS P2 001 Requests for Access GD SR G2 120 Revision No 2 Page 5 of 22 For work on low voltage or mechanical elements of high voltage apparatus where the high voltage apparatus may remain in service a HVPRI will not normally be produced Rather a LVMPRI and or PMWI shall be used to provide local safety isolations and system security isolations as appropriate An exception to this is where system security isolations can not be delegated to the work party In this case the isolations required will be specified in a HVPRI for example Intertrip links for communications work It is expected tha
12. Mismatched RFAs Switcher Source Refer to LVMPRI Check Operating Process if required LVMPRI for Access to LV MECH Apparatus LV MECH 5 RFA Submission This procedure is prepared as a reference for those submitting RFA s The TheOS manual should also be referred to when submitting RFA s electronically RFA s shall be submitted in the prescribed format to Network Operations at least 28 days in advance of the proposed work time Exceptions to the 28 day requirement are detailed in Section 6 2 A separate RFA shall be submitted for each separate working period Where work extends over several days a continuous outage is acceptable when e The outage does not result in a load being radialised e The outage does not affect system security and e The outage is unlikely to invoke penalties under a NEM incentive scheme If multiple day work is proposed but the above criteria are not met the originator may request a continuous outage with appropriate justification if the officer believes it is required or would generate significant advantage For example e A continuous outage would give safety cost or efficiency benefits e Acontinuous outage would significantly reduce the number of day s work e Switching daily presents particular difficulties or Requests for Access GD SR G2 120 Revision No 2 Page 7 of 22 e Daily outages are unfeasible due to th
13. Preparation of an RFA 5 5 1 Network Operations office use Network Operations will assess valid RFA s received and give approval as appropriate An RFA number will be assigned automatically by TheOS or manually by Network Operations as part of the approval process A new number will be assigned each time the RFA is returned and resubmitted or when significant changes are made on behalf of the requestor The HV PRI number will be added to the RFA after the associated HVPRI is prepared and checked Assessing officer use only RFA No 5 5 2 Requester s reference Requesting officers can optionally insert their own reference Requesting Officers Ref number This is especially useful prior to Network Operations assigning an RFA number 5 5 3 At Location Call Sign If work is within an electrical station then the station shall be nominated If work is outside the boundaries of an electrical station then a site location of Field shall be used The tower number joint bay number or other identifying feature and vehicle radio number and contact mobile number shall be supplied to the System Operator as part of the Access Authority issue process 5 5 4 Time and date Outage times The outage time entered on the RFA shall be the total time the equipment will not be available for normal service due to the work described with due allowance for switching This is required so that Network Operations can assess
14. TransGrid Requests for Access Summary This document supports the Power System Safety Rules and its requirements assembled under Power System Access and Operation Category 2 It applies to the preparation submission and assessment of a Request for Access RFA to apparatus in the charge of a Controller Business function Operate the Network When referring to TransGrid s policies frameworks procedures or work instructions please use the latest version on the Wire PSSR Page or Power System Safety Rules TransGrid Requests for Access Revision No 2 Page 1 of 22 TransGrid Table of Contents K OWEN Game ee rte ee ren oe en ee en en ee ee ee ee eee enon ore meres ter een ee 4 diel PUDO pacccticusteceiadsrscstsensacctuectaccvatcuieeresarceegasecarecarecaetsecnresa E aod eed eataentoee 4 aa FOY B s 2 ee ee mr ee ee ee ee 4 to Relerence DocUMENS serrnsiecir a a aa a aa E AE 4 5 Re gt 60 3 EEEE E OO E ee ee ee ee 4 ese ACCU D ei eee ee ec eee ie ie ens ee ee eee eee 4 16 DOCUMENTE LOCAHON et te ee nn hr ee ee ee ee ee ee 5 2 POUCO a E ntact ino ers corsets eden nee once acdneceaacoansescocsoe eae 5 3 Operational REQUIFEMENT ccccceececcsececceeeeeceeeeseeeecseeeessaueeesaeeeseueeeseueeesaeesseeeessaeeessaeeesagees 6 7 ol Gad i E lo 2 ae ee EE en ee ee re ee ee er em E E tt tr ee 7 De RFA UOTIS cass ceatacatestonnbarndersboesbneshmesmitseccecedacecsasceesdicaceccesoadecednnestaangsccea T 7 5 1
15. age 4 of 22 hy TransGrid 1 6 Document Location Block diagram showing relationship to other documents Power System Safety Rules Category 2 Category 4 g Category 5 E Category 6 7 Category 7 Operating Requests for Process for Access Access to LV MECH Apparatus N _ __ sainped01d Preparing HVPRI Operating Process for Access to HV Apparatus Primary Earthing Requirements SUOI ONASU YOM THEOS User Guide 2 Introduction A Request for Access RFA is a form submitted by field staff and assessed by Network Operations that details proposed work on apparatus in the charge of the controller When assessing a request Network Operations considers staff safety system security security of supply compliance with the Safety Rules customer impact the criticality of the work how multiple requests interact with each other etc The fields and questions on the form are designed to elicit sufficient information to enable complete assessment and initiate the preparation of a High Voltage Preparation and Restoration Instruction HVPRI should one be required Requests for access shall be submitted by a person authorised category 2 1 and assessed by a person authorised 2 2 The person submitting the RFA is responsible for ensuring that it accurately reflects the intended work Partially completed forms shall not be submitted and TheOS includes logic to prevent this Once approval is given a
16. appropriate Low Voltage Mechanical Preparation Instruction LVMPRI to enable operation of the listed apparatus These isolations must be carried out before the issuing of an access authority 5 Apparatus Required Operational at No additional information required 2 Start of Work Full details of operations required on the apparatus shall be provided Answering yes here and no in question four is incorrect Answering Yes at this question will result in the authorised person completing the above LVMPRI such that the isolation points have been warning tagged but the listed apparatus remains operational Requests for Access GD SR G2 120 Revision No 2 Page 13 of 22 hy TransGrid In Service Checks Required No additional information required Full details of checks required on the apparatus shall be provided including any checks to be carried out on System LV Mechanical Apparatus associated with in service HV apparatus Any HV apparatus to be operated shall be detailed in Q4 Note Re arrangement of the HV system may be required The proposed checks and any unusual requirements should be discussed first with Network Operations staff and then detailed on the RFA In Service Metering No additional information required Communications Services Affected l All services affecting operation of the power system shall be listed so that alternative arrangements can be made as necessary Note The requester of
17. be provided in the additional information section of the RFA e The name of the other organisation e The other organisation s identifier and voltage for the feeder and e The isolation requirements and location of field earths on the customer feeder if applicable Example Essential Energy 22kV feeder between fuses F99 1234 and recloser R99 5678 required isolated and earthed with field earths applied at pole number 12345 Amendments to Operating No additional information required Data Diagram Required Sufficient details shall be made available to allow operating information in all relevant diagrams to be updated When the answer to Q11 is YES an Advice of Alteration form refer GD SO G2 001 shall be submitted at the same time as the RFA When new or altered equipment is to be commissioned or recommissioned a Request for Connection to HV System form shall be submitted at the same time as the RFA refer GD SO G2 001 12 Work subject to Weather No additional information required Appropriate contact details shall be provided to enable confirmation of work arrangements should bad weather prevail Note Network Operations is to be advised as soon as any alteration to the proposed outage times Is known so that National Electricity Market system security obligations can be met Requests for Access GD SR G2 120 Revision No 2 Page 15 of 22 TransGrid 13 Apparatus will be serviceable If recall gt 2 hours a
18. contingency plan may be overnight requested consult with Network Operations prior to submission No additional information required This question is tightly linked to the outage emergency recall please read the details associated with Recall times in case of emergency 14 Member of work party available to carry out HVPRI Network Operations arranges e Switching by customers and e Switching staff for the remote end of TransGrid inter regional feeders In all other cases the originating officer is responsible for arranging switching staff Where the switcher is not from the work party this question should be answered No and details provided as to who will carry out the HVPRI For work requiring isolation at a remote location the question should be answered Yes or No based on the situation at the location on the RFA and the details provided as to who will carry out the HVPRI at each required location Recall times in case of emergency Day The recall time is the total time it would take to restore equipment to service in an emergency The recall time must be established because it influences contingency plans for emergency operation of the network until the equipment is returned to service When equipment is recalled completion of any unfinished work is only required to the stage necessary to enable the equipment to be safely placed back into service For outages longer than one day emergency
19. e categories also provide JI CABLE LV Mech access to the listed apparatus Similarly Testing TESTING H V HV and Testing Cable provide Testing LV Mech inl LSA sae eel Note 3 Multiple Selection shall only be made if it is intended _ TESTING CABLE to issue seperate Access Authorities for each of the types HVEO chosen See below for further details on what restrictions Y VERBAL CLEARANCE ape High Voltage Selected if coming on or near high voltage conductors Network Operations will apply earths with Do Not Operate tags LV Mech For work on low voltage or mechanical apparatus or on high voltage apparatus where the work does not involve coming on or near exposed HV conductors Low voltage and or mechanical isolations will be Do Not Operate tagged under an LVPRI Field For work on an overhead line outside of a substation The conductors will be isolated and earthed at all terminal stations with Do Not Operate tags applied Cable For work on a cable from sealing end to sealing end whether inside or outside a substation The location on the RFA shall always be Field Testing High Voltage For work involving the injection of currents the application of voltages above limits specified in the Safety Rules or when access authority earths are required removed Access Authority earths that are required to be warning tagged shall be listed on the RFA either in the work description or additional information fields Te
20. e nature of the work Prior to requesting a continuous outage from Network Operations the requestor shall consider the impact on the availability incentive scheme and seek approval from their management as required For continuous outages a single RFA may be submitted for tasks extending over several days To minimise restoration time in an emergency equipment left out of service outside working hours shall be left in a serviceable condition unless previously agreed with Network Operations 5 1 RFA generated within The Outage System TheOS RFA s should be submitted by using TheOS which produces a replica of the form in Appendix A Refer to the TheOS User Manual for details of using the TheOS system Such RFA s will have a pending status until approved by Network Operations 5 2 Hand Written RFA Hand written requests can be made by using the request form shown in Attachment A The original paper copy shall be sent to Network Operations for approval Paper RFA s should only be used in unusual circumstances such as for emergency work or for work by customers 5 3 Submission by the System Operator on Requestors Behalf In an emergency The System Operator may be utilised to submit an RFA on a requestors behalf where the requestor does not have the facilities for the submission or if the requestor does not have the authorisation for the submission of an RFA This is expected to be for common defect work where templates are available
21. e taking advantage of a generator trip to perform maintenance that would otherwise have to wait for the next planned outage However there must be no compromising of any procedures so there must be sufficient time to coordinate and approve the outage by all required parties and in particular to prepare check and issue a HVPRI e A short notice RFA may be processed to correct mismatched RFA s and HVPRIs refer to 7 2 1 if there is mutual benefit to Field Services and Network Operations provided there will be no compromising of any procedures or Requests for Access GD SR G2 120 Revision No 2 Page 18 of 22 TransGrid e For work that does not require any of the following o aHVPRI o AEMO notification or oO Customer notification RFA s may be accepted with shorter than the 28 day lead time Such equipment should be identified during the outage planning and coordination activities and Network Operations outage planners should have given prior agreement to the submission of these short notice requests 6 2 2 Submitting RFA s in urgent circumstances When circumstances are urgent and it is agreed that the work can go ahead the requesting officer may give details of the RFA verbally by telephone or radio if it is not possible to follow normal procedures Authorised Network Operations staff shall then prepare and process the RFA and send a copy of the RFA back to the requesting officer 6 2 3 Log Entry Work Provided the
22. ing out rotation check required ceceeeeee eee eeeee eee eee ees a a 4 Operation of apparatus required ccceeeee ee eee eee ee ee eeeeeeeeeees fcc a 5 Apparatus required operational at start Of Work ceceeeee ees E 6 In service checks required 2 2 eecece eee eee eee ee ence eens eeeeeeeees 2 S 7 In service metering communications services affected 5 eS ee 8 LV circuits affecting in service HV apparatus will be isolated PP fp 9 Risk of trip to in service HV apparatuS eceeeeee eee eee eee eeeees PP fe 10 Undercrossing overcrossing safety involved cceeeeeeeeeeees eS 11 Amendments to operating data diagram required 6068 PP fp 12 Work Subject to weather ccccece cece cesses eeeeeeeeeneeneesneneeeenes Contact Phones 13 Apparatus will be serviceable overnight cecceeeeee eee eeeeees HIGH VOLTAGE Nee Alen po OCG TTT UT ce re ta eA LV MECH 14 Member of work party available to carry out HVPRI 05 Section Phone Assessing officer use only Approved by Remarks GD SR G2 120 updated 31 05 2012 Requests for Access Revision No 0 Page 22 of 22
23. insintnoinissinl atlneettungegaanAodwbedabeBadebadapedudebedadudedenesueshauavaa 20 Tide Mismatched RFA S isncissssvscsssassesanncasanbionenanesaueiousedesaieiecedanedaaeieaadaaedeandecadnaozsaumdnds 20 7 2 2 Additional RFA s received after preparation of PRI cccecceeeeeeeeeeeeeeeeeeeeeees 20 o Mame O i E ea Ea E oe eee ee ee et et 21 lt E e EE Ei ON a N E E E EE 21 10 Mo nitonng and FRG VOW sarees cnrccusnenssancuaaasapasicaeddauucdnatiunnen nanebnawaiaennnaaiud EAEE EA A 21 Te AENT e E E E E E E 21 Attachment A Request for Access Form Sample cccceeceeeeeeeeeeeeeeeeeeeeeeeaeeeeeaeeeeeaaeeeens 22 Requests for Access GD SR G2 120 Revision No 2 Page 3 of 22 TransGrid 1 Overview 1 1 Purpose This document supports the Power System Safety Rules and its requirements assembled under Power System Access and Operation Category 2 1 2 Policy Base GD SR G1 100 Power System Safety Rules 1 3 Reference Documents The Outage System TheOS user manual 1 4 Scope The process applies to the preparation submission and assessment of a Request for Access RFA to apparatus in the charge of a Controller 1 5 Accountability Operations Planning e Maintenance and ownership of this standard Manager Mgr Training e Implementation of training programs associated with this standard Authorised persons e Comply with this standard Requests for Access GD SR G2 120 Revision No 2 P
24. intended to issue two Access Authorities list the HV apparatus and HV work description in the HV section and the LV System and LV work description in the LV section Note it is Not permissible to list HV apparatus in the LV apparatus under this arrangement due to the ambiguity surrounding what apparatus the HV access is being applied to The description of apparatus and work descriptions on the RFA must be brief accurate and unambiguous There is never a requirement to enter the same information in both the HV and LV fields TheOS has included functionality that forces the user to complete the Description of Apparatus field if the respective HV or LV Mechanical Description of Work field is completed The description of apparatus must e Have full nomenclature from the relevant HV Operating Diagram HVOD for the first item and operational number for subsequent items If the work is in the field the line number and the terminal stations for the line or cable shall be nominated e List all the apparatus being worked on explicitly o Aline does not imply any apparatus in a substation o A capacitor bank or reactor does not imply the associated circuit breaker o A transformer does not imply the associated circuit breakers or auxiliary transformer and o Access to control and protection shall always be specifically requested e List only the apparatus being worked on avoiding the use generic terms such as bay or bay e
25. lties are foreseen the circumstances shall be discussed with the originator and then the RFA shall have specific conditions imposed for the equipment outage or the originator may reschedule or cancel the RFA e When specific conditions are imposed for the outage the assessing officer shall add any explanatory remarks and special system safety conditions required in the appropriate part of the RFA form e For Field Work not involving the breaking of conductors the specified location of field access authority earths shall be as close as practicable to the structure s involved in the work or e For Field Work involving the breaking of conductors the approving officer shall verify that an approved Work Method Statement which includes specific earthing requirements is referenced to in the RFA 6 2 RFA received less than 28 days in advance 6 2 1 Application Where Network Operations receives a new RFA at short notice that is less than 28 days in advance of the planned work the following procedures shall apply Note added RFA s are treated differently as set out in section 7 2 2 e Where there is failed faulty or unsafe equipment then the system and safety risks are to be removed in an appropriately urgent time frame For defect work the RFA should include the time frame for action e In circumstances where there is mutual benefit to TransGrid and another NEM participant a short notice RFA may be accepted An example would b
26. quipment o Do not list the bus if only working on a bus disconnector and o Do not list the transformer if only working on a circuit breaker e List only the apparatus required for the description of work in the given period e Where work extends across multiple services eg a Transformer Capacitor Line at a single site or adjacent lines in the field a single RFA maybe submitted which covers all of the equipment Each outage in TheOS is restricted to a single service Therefore in this case the requester will need to create separate outages for each affected service and then submit a single RFA for the work on the most significant outage Note An RFA can only contain equipment that shares the same location substation or field Requests for Access GD SR G2 120 Revision No 2 Page 10 of 22 hy TransGrid The description of work must e Avoid the redundant inclusion of the location and or apparatus e Specify reference to current injection diagram if relevant e Specify the test voltage to be applied if relevant and e Include reference to urgent requirement when submitted inside planning criteria 5 5 6 Type of access ACCESS REQUIRED The Access required shall be specified by placing a cross in X APPROPRIATE BOXES the box to the left of the appropriate category Note 1 HVEO High Voltage Equipment Outage is only L V MECH used by Network Operations staff 81 G e Note 2 High Voltage and Cabl
27. rating Process for Access to LV MECH Apparatus 7 1 3 PMWIs PMW s shall be prepared in accordance with GM AS P2 001 Isolation and Preparation of Protection and Metering Equipment Requests for Access GD SR G2 120 Revision No 2 Page 19 of 22 hy TransGrid 7 2 Verification of work details Before issue of an Access Authority each work party must verify that their intended work matches the work descriptions on the RFA s attached to the PRI each working party must have their own copy of their RFA which can be used for verification purposes The controller under the Power System Safety Rules must be advised if the intended work does not match the work described on the RFA attached to the PRI and no Access Authority shall be issued pending an investigation into the reasons for the discrepancy Some possible courses of action to cover this case are set out in section 7 2 7 2 1 Mismatched RFA s Note added RFA s are treated differently as set out in section 7 2 2 below If the work party can quickly obtain a replacement RFA that matches the RFA RFA s attached to the PRI the PRI can proceed The controller shall direct that the invalid RFA brought by the work party be destroyed to ensure that the correct notations are made on the Access Authority when it is issued If the work party cannot quickly obtain a replacement RFA that matches the RFA RFA s attached to the PRI the PRI can proceed if the work party agrees that
28. re are no hazardous Low Voltage or Mechanical isolations involved and there is no work on or near high voltage exposed conductors and no System implications the System Operator may accept a verbal request for attention to minor breakdowns of equipment and make a log entry instead of receiving a written RFA 6 3 Requests for work received from customers Where the work will involve the issuing of a TransGrid Access Authority an RFA shall be submitted in accordance with the normal procedures outlined in this document In other cases such as when requesting switching for work on their apparatus customers may use their own forms or may verbally notify TransGrid The customer s request form or an RFA printed from the details entered into TheOS must have sufficient information to allow preparation of the required HVPRI and shall be attached to the HVPRI 7 Approved RFA s Approved RFA s are to be sent to the person in the field in charge of the work by the requesting officer or other officer assigned by Network Services unless the work falls into one of the categories outlined in section 6 2 PRIs may then be prepared for work requirements set out in approved RFA s Approved RFA s shall be attached to and then form part of the finished HVPRI 7 1 1 HVPRIs HVPRIs shall be prepared in accordance with OM 973 HV Preparation and Restoration Instructions 7 1 2 LVMPRIs LVMPRIs shall be prepared in accordance with GD SR G2 140 Ope
29. recall times must be provided for both Day and Night Where recall time depends significantly on the progress of the work a recall profile shall be provided ADDITIONAL INFORMATION SPECIAL REQUIREMENTS Include all instructions requiring specific attention by operating staff or relating to return to service conditions such as e Expansion of information supplied in answer to any of the previous questions e Reference to an injection path diagram where the work involves primary injection e Reference to the approved Work Method Statement which includes specific earthing requirements for field work involving breaking conductors Requests for Access GD SR G2 120 Revision No 2 Page 16 of 22 hy TransGrid e Reference to RFA s on other apparatus required out of service for the work e Reference to a Request for Connect form where new equipment is being commissioned e Nomination of earths that may be removed under a Testing Access Authority portable earths and earthing switches e Confirmation that on RFA s for THV access where the APIC is not from the work party the APIC has agreed to this arrangement e Note if the work is not operating expenditure generally capital or insurance work or e Note the urgency of the work for defect repairs 5 5 9 Coordinate with other areas customers sections ______ ____ Work requirements of all groups working concurrently CO ORDINATE WITH OTHER i i INA a REO aon must
30. sting LV Mech For work on low voltage or mechanical apparatus or high voltage apparatus where the work does not involve coming on or near exposed HV conductors where LV or mechanical isolations and earths may be removed Testing Cable Earths in the terminal stations may be warning tagged HVEO Network Operations internal use only for the control of customer isolation and earthing steps Requests for Access GD SR G2 120 Revision No 2 Page 11 of 22 Verbal Clearance Verbal clearance is primarily for internal use by Network Operations but may be selected when plant is required in a particular state for non invasive testing or maintenance Some examples are e Placing plant in service or on load for o Thermo vision inspections or o Noise tests e Exercising a circuit breaker or disconnector e Exercising a tap changer for example to move through centre tap lt is permissible to select multiple types of access on a single RFA with some exceptions e Where Field HVEO or Verbal Clearance is selected there shall be no other access e HV Testing HV Cable and Testing Cable are all mutually exclusive e lf LV Mech or Testing LV Mech is selected with HV Testing HV Cable or Testing Cable there must be corresponding text in both the HV and LV parts of the Apparatus and Work description sections of the RFA 5 5 7 Authorised Person in Charge APIC The designation of the authorised person in charge of the work Authorised Person
31. t the RFA will contain adequate information to enable Network Operations to determine the required isolation 3 Operational Requirement An RFA is required when work is to be performed on or near apparatus in the charge of a Controller where near is as defined in Power System Safety Rules An RFA shall be submitted to the Network Operations group for e All work on equipment under its control for which an Access Authority is required under the Power System Safety Rules and e All work on apparatus under its control for which an Access Authority is not required but there are potential effects on NEM operation system reliability or security Such work includes work on High Voltage apparatus and LV Mechanical apparatus that could affect safety of staff or impact on the security of the network Outage planning coordination and scheduling shall be carried out in accordance with relevant standards to meet TransGrid and National Electricity Rules requirements Requests for Access GD SR G2 120 Revision No 2 Page 6 of 22 TransGrid 4 RFA Process Request for Access Process Process RFA Produce PRI Comence RFA Submitted RFA Revised A No RFA Assessed Approved Requester HVPRI Produced if required Operations Assessor Refer to Does RFA Operating Process atch HVPR for Access to HV Apparatus y Refer to Sect 7 2
32. the total duration of possible reductions in NSW network capability arising from the planned work make contingency plans and advise AEMO and market participants Where there are several simultaneous jobs on the same or related apparatus workgroups shall liaise during the outage planning and coordination process and determine the time at which the preparation switching is planned to start and the time at which the restoration switching is planned to finish Network Operations is to be advised of the overall outage duration and any subsequent changes Changes to outage times before the day of the outage If changes to the dates or times of the outage are proposed or are expected to occur that is switching times will be different to those originally indicated Network Operations shall be informed immediately the changes become known and the RFA s shall be amended accordingly Requests for Access GD SR G2 120 Revision No 2 Page 9 of 22 hy TransGrid 5 5 5 Apparatus and work description If HV access is required this can include LV mech work on the listed apparatus list the HV apparatus and the HV amp or LV Mech work in this section HIGH JOLTAGE If LV access is required list the required HV and or LV Mechanical apparatus and LV work description here Note HV apparatus listed here will be considered for Q1 Is listed HV Apparatus required O S LY MECH If both HV and LV access is required only to be used if it is
33. ths are applied appropriately For field access an approved Work Method Statement which includes specific earthing requirements will be required If two or more phases are to be disconnected at the same time the originator should consider if there is a possibility that the conductors could be reconnected incorrectly If possible Q3 should be yes 3 Phasing out rotation check required No additional information required Brief details shall be provided of the proposed location of the phase out so that the HVPRI can be written to facilitate the check and include the appropriate steps Phasing checks of HV apparatus must be carried out by trained staff generally from the projects group Phase rotational checks of LV apparatus may be carried out by the working party when competent to do so It is the responsibility of the requesting officer to arrange suitable staff 4 Operation of Apparatus Required N No additional information required Full details of operations required on the apparatus shall be provided Work could require operation of apparatus located outside the designated work area e g operation of an earthing switch or circuit breaker for the purpose of carrying out current injections As work will not be carried out on this apparatus it should not be included in the Description of Apparatus box but should be nominated here Answering Yes at this question will result in the authorised person using an
34. wering No at this question e Contact resistance measurements on a dead tank CB by fitters HVPRI will include appropriate link isolations or direct a protection technician to isolate and earth CT cores or e Intertrip checks by communications technicians HVPRI will isolate intertrip receive links if requested in the additional information section Requests for Access GD SR G2 120 Revision No 2 Page 14 of 22 hy TransGrid Risk of Trip to In Service HV No additional information required Apparat See below Answer YES if a credible risk remains after control measures have been put in place The originator must advise Network Operations what is at risk of trip and what may initiate tripping Network Operations staff will use this information to ascertain whether a risk of trip will be acceptable whether alternative system arrangements will be necessary or as a trigger to prepare a contingency plan 10 Undercrossing Overcrossing Safety No additional information required Involved Any lines that might pose a risk to safety shall be detailed so that appropriate arrangements can be made for isolation When this question is yes the relevant span on the TransGrid line shall be nominated Where a feeder of another organisation is involved the submitting officer shall liaise with the other organisation s staff in order to identify the feeder in the other organisation s terminology The following details are to
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