Process for LV and HV operational activities with respect
to Independent Connection Providers (ICP’s)
1.
CON-04-002
Issue 1
SCOPE
This document details SP Energy Networks‟ approach to facilitating operational activities for
Independent Connection Providers‟ (ICP‟s) to carry out LV and HV network connections.
2.
ISSUE RECORD
This is a Controlled document. The current version is held on the Energy Networks Intranet
Document Library.
It is your responsibility to ensure you work to the current version.
Issue Date
12/03/2014
3.
Issue No
Issue 1
Author
Nigel Evans
Amendment Details
ISSUE AUTHORITY
Author
Nigel Evans
Senior Engineering
Compliance Consultant
Owner
M Scowcroft
Process & Compliance
Manager
Issue Authority
June Dickson
Commercial & Compliance Manager
(Scotland / England and Wales)
Date: 25/3/14
4.
REVIEW
This is a Controlled document and shall be reviewed as dictated by business / legislative change but
at a period of no greater than 3 years from the last issue date.
5.
DISTRIBUTION
This document is not part of a Manual maintained by Document Control and does not have a
maintained distribution list, but is published to the Energy Networks Internet site.
© SP Power Systems Limited
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Process for LV and HV operational activities with respect
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6.
CON-04-002
Issue 1
CONTENTS
1.
SCOPE ........................................................................................................................................... 1
2.
ISSUE RECORD ............................................................................................................................ 1
3.
ISSUE AUTHORITY ....................................................................................................................... 1
4.
REVIEW ......................................................................................................................................... 1
5.
DISTRIBUTION .............................................................................................................................. 1
6.
CONTENTS .................................................................................................................................... 2
7.
DEFINITIONS AND ABBREVIATIONS ......................................................................................... 3
8.
DOCUMENTS ................................................................................................................................ 4
9.
GENERAL ...................................................................................................................................... 5
10.
INTRODUCTION ............................................................................................................................ 5
11.
OBJECTIVE OF THE EOCW OPERATIONAL ACTIVITIES TRIAL ............................................. 6
12.
COMMENCEMENT AND DURATION ........................................................................................... 6
12.1 Commencement ................................................................................................................. 6
12.2 Duration .............................................................................................................................. 7
13.
ACCREDITATIONS ....................................................................................................................... 7
14.
ROUTE TO AUTHORISATION ...................................................................................................... 7
15.
LV NETWORK ............................................................................................................................... 8
15.1
15.2
15.3
15.4
15.5
16.
General ............................................................................................................................... 8
LV Operational Work ......................................................................................................... 8
Network Access ................................................................................................................. 8
Communication ................................................................................................................. 9
Ongoing development of works. ...................................................................................... 9
HV NETWORK ............................................................................................................................... 9
16.1
16.2
16.3
16.4
16.5
General ............................................................................................................................... 9
HV Operational Work ......................................................................................................... 9
Network Access ...............................................................................................................11
Communication ...............................................................................................................11
Elements that require a more sustained approach by the business to gain a robust,
enduring process. ...........................................................................................................11
© SP Power Systems Limited
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Process for LV and HV operational activities with respect
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7.
CON-04-002
Issue 1
DEFINITIONS AND ABBREVIATIONS
Ofgem
Office of Gas and Electricity Markets
ECSG
Electricity Connections Steering Group
DNO
Distribution Network Operator
SPM
Distribution License Holder – SP Manweb, Distribution Service area
formerly known as Manweb
SPD
Distribution License Holder – SP Distribution, Distribution service area
formerly known as ScottishPower.
EoCW
Extension of Contestable Works – as proposed by the ECSG (Ofgem
Extension of Contestable Works subgroup) November 2010
Handover
A point where all contestable work is complete, transfer of title, ownership,
operation and maintenance responsibilities as defined in the Construction
and Adoption Agreement has been transferred to the License Holders SP
Distribution Ltd or SP England and Wales plc.
NERS
National Electricity Registration Scheme – operated by Lloyds Register on
behalf of the UK DNOs‟. Lloyds perform technical assessment of the
Service Providers (applicants) who elect to be assessed for accreditation
for contestable works associated with the installation of electrical
connections.
ICP
Independent Connection Provider – A NERS accredited contractor
undertaking design and construction works in association with housing and
industrial and commercial sites (referred to by Ofgem as the Applicant).
IDNO
An Independent Distribution Network Operator who can employ applicants
or who can act as an applicant with suitable NERS accreditation.
PSCC
PowerSystems Control Centre
SPEN
SP Energy Networks – The network operator for the Distribution License
Holders SPD and SPM
SAP
Senior Authorised Person
ISAP
ICP‟s Senior Authorised Person
SOP‟s
Suspension of Operational Practices
Working Day
Any day other than a Saturday, a Sunday, Christmas day, New Year‟s day,
Good Friday, Easter Monday or a day classed as a bank holiday within the
meaning of the banking and Financial Dealings Act 1971.
Safety Rules
The Electrical and Mechanical Safety rules applicable to work on the SPM
or SPD network
CiC
Competition in Connections
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Process for LV and HV operational activities with respect
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8.
CON-04-002
Issue 1
DOCUMENTS
The following documents are related to the operational activities with respect to a new connection
onto the SPEN network. With exception to the Statutory documents these documents are controlled
documents and are not available for general scrutiny. All construction, monitoring and recording
documentation can be found at:
http://www.sppowersystems.co.uk/NetworkConnections/specifications.asp
Statutory Related Documents
Health and Safety at Work Act 1974
Electricity Supply Quality Continuity Regulations 2002 And subsequent Amendments
Electricity at Work Regulations 1989
Management of Health and Safety Regulations 1999
IEE 17th edition Wiring Regulations BS7671
Memorandum of guidance on the Electricity at Work Regulations
Construction Design and Management Regulations 2007 (CDM)
Reporting of Injuries, Diseases, Dangerous Occurrences regulations 1995
Construction (Health, Safety and Welfare) Regulations 1996
Provision and Use of Work Equipment Regulations 1998
Supply of Machinery (Safety) Regulations1992
IEE Code of Practice on In-Service Inspection and Testing of Electrical Equipment
SPEN Related Documents
Scottish Power Safety Rules (Electrical & Mechanical) 4th Edition Issue 3i Operative from
December 2007 (Green Book)
OPSAF-01-001 (LWM 1.1) Policy for Live Work on System
OPSAF-11-001 MSP Explanatory Notes
OPSAF-11-002 MSP Definitions
OPSAF-11-003 (MSP 1.1) Accompanied Work
OPSAF-11-004 (MSP 1.2) Operational Compliance Auditing
OPSAF-11-005 (MSP 1.3) Achieving Safety from the System by Limiting the Testing,
Work or Work Area
OPSAF-11-010 (MSP 1.8) Recording and Reporting of High Voltage and Low Voltage
Switching
OPSAF-11-012 (MSP 2.1) Arrangement for the Establishment and Maintenance of
General Safety
OPSAF-11-014 (MSP 2.3) The Issue of SPEN Safety Rules Handbook and Support
Documents
OPSAF-11-054 (MSP 2.4.7) Interim Procedure for Safety Locking Ring Switches on 33kV
RMU'S with A.E.I or Ferguson-Palin IVS type Oil Switches
OPSAF-11-018 (MSP 2.7) Objection to Instructions Issued Under The Safety Rules
OPSAF-11-023 (MSP 3.1) Application of SPEN Safety Rules
OPSAF-13-001 (MSP 5.1): Authorisation Procedures
OPSAF-13-001 MSP 5.1 Appendix 09 – Request for Authorisation
OPSAF-13-001 (MSP 5.1) Appendix 10 – Authorisation Cancellation
OPSAF-13-003 (MSP 5.1.1) Route to Authorisation
OPSAF-11-035 (MSP 5.5) Procedures for Standby
OPSAF-11-031 (MSP 4.6) Procedure and Guidance for Safety Documents.
OPSAF-13-004 (MSP 5.6) Operational Incident Procedure – Authorisation Withdrawal
OPSAF-11-044 (MSP 6.1) Guidance on Interpretation of Definitions Part D – Safety Rules
OPSAF-12-004 (LWM 2.2) Operation of HV System up to and including 33kV
OPSAF-12-007 (LWM 3.1) Substation Distribution Boards and Network Pillars
OPSAF-12-009 (LWM 3.3) Control and Protection Systems
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Process for LV and HV operational activities with respect
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CON-04-002
Issue 1
OPSAF-12-024 (LWM 8.1) Approval of Equipment for Live Working or Testing
OPSAF-12-003 (LWM 2.1) Operation of LV System
OPSAF-12-008 (LWM 3.2) Substation Batteries
OPSAF-12-010 (LWM 3.4) Current Transformers (CT's)
OPSAF-12-005 (LWM 2.3) Use of Approved Voltage Indicators (HV) and Capacitive
Phasing-Out Devices.
Power Systems Safety Instructions
OPSAF-11-032 (MSP 5.2) Responsibilities of Control Persons and Authorised Persons
DOM 1.4.6 (SWG-14-003), Precautions when working with sf6 gas
QUAL-04-001, Equipment Defect Reporting and Rectification
QUAL-04-001, Equipment Defect Reporting and Rectification – Appendix 1
SWG-18-100, Maintenance Procedure Check Sheets G3/A Ancillary Plant: Test Prod
Devices for HV Tests
SWG-18-001, Ancillary Plant: Test Prod Devices for HV Tests
SMS-11-027, In-service inspection and testing of electrical equipment
OPSAF-04-021, Operational Hazard Management Procedure
OPSAF-04-024, Identification, Register, Issue, Control & Inspection of HV Test Prods, HV
Earthing Devices & Ancillary Equipment
OPSAF-04-025, Manweb System Operation LV Network Interconnection
OPSAF-04-028, SP LV Distribution System (Non-Interconnected)
BUPR-10-020, Application and use of Geofield LV Management Package
ASSET-04-030, RAdAR Process for Contestable Connection Projects
QUAL-10-204, HV & LV Customer Affecting Planned Outage Procedure
QUAL-04-030, Operations QMS – Deliberate Supply Interruptions – Legal Constraints &
Financial Incentives
9.
GENERAL
The information and guidance contained within this document remains the property of SPEN Energy
Networks (SPEN) and may not be used for purposes other than that for which it has been supplied. It
may not be reproduced either wholly, or in part, in any way whatsoever, nor may it be used by, or its
contents divulged to, any other person whosoever, without the prior written permission of SPEN.
This document applies to new enquiries/schemes and is not to be applied retrospectively.
SPEN reserves the right to change the data contained within this document. SPEN accepts no
responsibility for any inaccuracies in, or omissions from, the document.
The ICP is responsible for ensuring they have all the relevant information, approved PPE, approved
test equipment and approved materials to undertake the work. Only ICP‟s possessing the right skills,
training, knowledge and experience shall use the information and guidance within this document.
10.
INTRODUCTION
The de-regulation of the electricity market has developed to a stage where it has been possible to
allow accredited, authorised & suitably trained ICP‟s to undertake live jointing of the newly installed
contestable assets on new Greenfield HV/LV housing developments, Brownfield HV/LV housing
developments, Industrial/Commercial and Generation.
However, because of network access & safety considerations the local distributor has to date been
required to provide live jointing on the contestable part of the network. The next stage in the deregulation of the connections market will be to facilitate a trial allowing “final connection” to existing
DNO assets to be carried out by ICP‟s..
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Process for LV and HV operational activities with respect
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CON-04-002
Issue 1
It is the intention of SPEN to facilitate Ofgem‟s request to extend the contestable element of works for
new connections. In order to assess the feasibility of this requirement & the appropriateness of
associated processes & documentation, a trial called Extension of Contestable Works (EoCW) trial
will be established in SP Distribution and SP Manweb. The purpose of the trial will be to test, monitor
& evaluate the proposed processes & documentation.
Any areas where the network is known to have specific anomalies, e.g. „out of phase points‟ or where
local knowledge is essential, then these areas will not form part of the trial.
11.
OBJECTIVE OF THE EOCW OPERATIONAL ACTIVITIES TRIAL
The objective of this trial is to determine the robustness and practicality of the proposed operating
regime, ascertain if there is a need for operational activities and at what level. Identify the benefits. If
successful, this documentation may be used to facilitate a long term approach to ICP‟s carrying out
operational activities on the SP Network.
Sections 15.5, 16.5 identify areas that will require closer communication and investigation to enable a
robust and safe process. For this purpose, it is intended, in the first instance, for the requesting ICP,
SP Connections and SP Operations to be involved.
12.
COMMENCEMENT AND DURATION
12.1
Commencement
Anyone intending to carry out operational activities on the SPEN network MUST hold the relevant
current SPEN authorisation applicable to the company they are employed by.
OPSAF-13-003 (MSP 5.1.1) Route to Authorisation provides guidance for Training and Authorisation
of Personnel in the Electrical and Mechanical Safety Rules. This document also lays down the
procedures to be followed to ensure that persons have knowledge and experience appropriate to the
duties which they will carry out on, or near to the System.
The following criteria must be met before ANY SP authorisation is issued:
The need for the person to be authorised has been justified. i.e. The person requesting
the authorisation has a contract of work applicable to the authorisation being requested.
The person has been deemed competent via OPSAF-13-003. i.e. Has proved to have the
necessary experience, training, knowledge and understanding.
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Process for LV and HV operational activities with respect
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12.2
CON-04-002
Issue 1
Duration
The trial shall run for a period long enough to test the robustness of all new processes and
documentation, dependant on sufficient volume, unless otherwise dictated by Ofgem. However SPEN
will always ensure the integrity of the SPEN network and the safety of its employees, all contractors
and the members of the public.
For this reason SPEN have adopted a phased approach to any ICP gaining physical and operational
activities on the network.
Physical activities: (Now business as Usual)
LV Jointing – Complete – Both metered and un-metered.
HV Jointing – Complete
Operational activities:
LV – Under review
HV – Under review
The following document will identify the proposed approach to enable operational activities.
13.
ACCREDITATIONS
All applicants must hold Lloyds accreditation with the relevant scopes applicable to the work involved.
Anyone requesting to carry out operational activities must have completed the following.
Made an application to Lloyds register for the relevant scope of works
Completed a satisfactory initial assessment by Lloyds to move to partial accreditation.
Informed SPEN of the above actions and provided SPEN with the Lloyds register contact
name and number.
14.
ROUTE TO AUTHORISATION
All applicants must justify the need for authorisation and level of authorisation and submit
an “Appendix09 request for authorisation” form that is part of SPEN document „OPSAF13-001‟ This appendix09 form needs to be signed by the network connections signatory
and passed over to SPEN compliance section.
All persons MUST show evidence of relevant training, experience and competency of
Live LV network working.
All persons must proceed through the same route as SPEN employees and follow the
OPSAF-13-003 (Route to authorisation Document) – This route can be shortened if the
person has held the requested authorisation with SPEN within the past 12 months and
have been carrying out similar work in another DNO/IDNO.
Note:
All SPEN authorisations are only valid whilst the person is actively carrying out the tasks relevant to
the authorisation. If any persons not carrying out the work on a regular basis, then SPEN reserve the
right to remove the authorisation.
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Process for LV and HV operational activities with respect
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15.
LV NETWORK
15.1
General
CON-04-002
Issue 1
Many ICP‟s and their contractors presently hold authorisations to carry out physical activities, e.g.
Jointing, on the SPEN network.
To enable LV Operational authorisations, whether this is internal or external persons, they must show
adequate training and experience (OPSAF-13-003) before they can become authorised. The following
authorisations are applicable to LV operational work.
OP-1 – All switching no limitations within voltage level:
The above authorisation is an all encompassing authorisation and is only applicable to persons who
will need to carry out planned and fault fusing and linking associated with overhead and underground
networks. As the work involved in new connections activities will be a limited activity, then OP-1 will
not apply.
OP-2 – Switching with limitations within voltage level
The above authorisation is for planned fusing and linking on the LV network and is used for planned
fault repairs, energisation of new networks, network monitoring, and network adjustments to enable
HV operations. Therefore, a maximum OP-2 will apply.
OP-3 – Remove/insert LV cut out fuses.
The above authorisation is presently used for many ICP and IDNO persons and will be issued as and
when it is deemed to be required in line with OPSAF-13-003.
15.2
LV Operational Work
The vast majority of LV work under the EoCW will consist of a breech joint onto the existing network.
As this does not require any operational activity the need for operational authorisation under the
EOCW remit is limited. The only foreseeable need for operational activities would be:
Within a new site, working within a „Live Working regime‟ where an ICP could energise
sections of LV network from an LV board. This has not yet been requested by any ICP.
When a new LV only substation requires LV „loop in‟ direct off the existing network. (If an LV
„loop in‟ is required on a HV substation then all work will be under the supervision of an SAP).
(SP Manweb Area Only).
If connecting a 4 way link box – It is deemed that a 4 way link box will always be the property
of the DNO due to the „in line‟ running main passing through. These will all be constructed
under the supervision of a relevant SP employee.
The following process will be used to enable an ICP to carry out LV operational work under ECOW.
15.3
Network Access
Access to parts of the system that does not require the use of an operational key, i.e. link boxes,
feeder pillars etc. then this must be done by use of the approved tools and equipment. Access to a
substation via the use of operational keys will be on a job by job basis and keys only issued for that
particular job.
When the substation has been energised and is identified as being part of the SPEN network, then
access to the SPEN substation during the duration of the works will be via a dual locking mechanism,
supplied by the ICP. If any cables need de energising during the period of works then Qual-10-204
and Qual-04-030 will also apply. When all cables have been energised SPEN will remove the dual
locking and install their own lock. From this point on the ICP will not have access into the substation.
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Process for LV and HV operational activities with respect
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15.4
CON-04-002
Issue 1
Communication
All construction communication will be in line with SPEN document Asset-04-030. During the trial
period it is the intention to audit every job involved in the trial. Any on-site communication with the ICP
on the day of the works shall be via the asset inspectors, local team leaders or Senior Project
Engineers, dependant on work involved. This shall be specified at a local level.
Any authorisation policy document changes will be via the standard channels in line with present
authorisation procedures.
15.5
Ongoing development of works.
Connection of LV to a substation before the HV is complete –safety notices, SAP
involvement, raising of the POWER ON patch.
Understanding the need for an SAP or ISAP involvement if energising the LV first,
especially with a unit type substation.
Finding a fault on the network whilst cutting the running main. – Written procedure
required with the use of approved joints i.e. Breech come pot-end.
Handover of substation. If HV work is to be carried out later, then it will be under the
control of an SAP.
If it is agreed for the ISAP to carry out the HV side at a later date. How long can we allow
control of the substation to be with the ICP before complete handover.
Tracking of any „no supplies‟ and subsequent payments if an ICP makes a mistake.
Ensuring operational activities are not carried out without SP knowledge.
16.
HV NETWORK
16.1
General
There are many HV operational levels of authorisation within SPEN. As with any DNO/IDNO anyone
progressing to HV operational authorisations has to have a number of years experience with a
stepped progression to full authorisation. As with the HV network any persons requesting
authorisation will be evaluated on an individual basis dependant on previous experience and relevant
history (if available).
Any person who requires HV operational authorisation will require access to a number of SPEN I.T.
applications, such as POWER ON, UMV (full access). Access to these systems could result in an ICP
becoming aware of commercially sensitive information. SPEN will review the access required and
decide if full or any access is viable.
16.2
HV Operational Work
The following table shows the initial response by ScottishPower to enable a trial. This shows
responsibilities of ScottishPower and the relevant ICP.
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Process for LV and HV operational activities with respect
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Responsibility
ScottishPower
Planning
Network Checks
Switching Schedule
Outage Planning
Outage Notification
Connection of Generators
Altering protection settings at primary
substation (if req‟d)
Isolation
Earthing
Cable identification
Spiking
Permit For Work
Sanction for Test
Provision of HV Diagram
Access to Cable Records
Equipment Testing (prior to energisation)
Commissioning (inc. Remote ends)
HV split point moves
Energisation
Ownership of keys
Yes
Yes
POWER ON Input and Check
Yes
Yes
Yes
CON-04-002
Issue 1
ICP
Preparation
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
job by job basis
It will be the responsibility of ScottishPower to carry out all network checks, plan the outage, create
the switching schedule and issue any outage notification letters (if applicable)
Solkor networks are deemed to be a more specialised area of work and may require additional
training and authorisation, such as connection of generators. Therefore due to the complexities of a
Solkor network. Any work involving a Solkor network is not part of the EoCW trial at this time.
On initial assessment it has been identified that an ICP requires an adequate amount of control to
carry out the operations safely and effectively. It is expected that the ISAP involved will be responsible
for:
Moving of HV split points: The ISAP will be responsible for the opening and closing of all split points
to ensure the continuity of supply for ScottishPower customers. The ISAP will need to be fully
conversant with Urban automation. SOP‟s, be aware of LV groups and split points to prevent
compromising the LV network.
Isolation and Earthing of the network: The ISAP must be fully conversant with the type of
switchgear involved and type of earthing equipment used within ScottishPower. The ISAP will require
access to earthing equipment and must be fully conversant with the quarantine and care of
equipment. The ISAP may need to familiarise themselves with the switchgear involved before the day
of the shutdown, such as earthing processes and locking mechanisms. The ISAP will provide their
own red safety locks, yellow earthing locks, caution notices approved for the SP network etc.
ScottishPower will provide the key safes and keys for loan for the duration of the works.
Cable Identification: It will be the responsibility of the ISAP to identify the HV cable to be worked on.
The ISAP must be fully conversant with the use of ScottishPower approved testing and identification
equipment. Approved cable identifiers. Spiking guns approved test regime. Use of records. PSSI 12 /
PSSI 5.
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CON-04-002
Issue 1
SPEN will provide the test prods specific to that job/switchgear. These will be issued, logged and
returned by the allocated SP Network Connections SAP.
Issue of safety documents: As per OPSAF-11-031 Issue 4 (MSP 4.6) Procedure and Guidance for
Safety Documents, the ISAP must have access to, and use, up to date ScottishPower documents. Be
fully trained on the correct filling in of the documents. These documents must be kept for audit
purposes.
Commissioning: The ISAP will record all stage commissioning results and make them available to
the SAP at the time of handover. The ScottishPower SAP will still need to witness any testing during
the trial period.
Energisation: The existing wording of OPSAF-11-024 and its appendices does not lend itself to the
application of ICP energisation. This would have to be reviewed with SP Operational safety
department.
16.3
Network Access
Access to the ScottishPower network is limited to the operational authorisation held along with the
task required to complete the work. Any ICP requesting HV operational authorisation will only be
given the authorisation level relevant to any work they are likely to carry and are accredited for under
Lloyds.
Substation access will be given on a job by job basis and a permanent set of substation keys will not
be issued.
16.4
Communication
All construction electronic communication will be in line with SPEN document Asset-04-030. In
tandem with the above process and prior to the commencement of works the ISAP will communicate
with the SPNC SAP appointed to the scheme. Both the ISAP and the SAP will arrange a handover of
the work package (5 days) prior to the commencement of works to ensure the ISAP is fully conversant
with the work involved. Any pre commissioning results will be made available at this point.
During the works/shutdown all communication will be via the PSCC up to and including energisation
of the substation. When all activities on the switching schedule are complete then the ISAP will liaise
with the SAP to handover the substation back to the appointed SAP. The SAP will then issue a
withdrawal notice and take back the keys.
16.5
Elements that require a more sustained approach by the business to gain a robust,
enduring process.
Issue of keys – Dual padlocks will be fitted to the relevant substations and returned back
to SPNC once the job is complete.
SOP‟s – A means of communicating any SOP‟s will need to be addressed. This will need
to be a list of existing as well as a process for communicating new ones.
OIC‟s – Same as above.
Communication from associated POI‟s – As Above.
Operational Near misses – How do we filter and communicate.
Access to test prods/equipment. – Unless the ICP can satisfy they are using the approved
test prods and have a robust test regime in line with SP approved procedures, then they
will need to have access to our test prods and use SP procedures. This will require extra
access to SP buildings or a process for delivery and check by an SAP to handover
equipment. A charge will have to be identified for Use of SAP time and equipment.
Checking and audit of their equipment. (Calibration etc.) Do we ask for a form to prove
before each job or accept their testing regime?
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Issue 1
Spiking Guns – The ICP must carry out the same inspection regime as SP for all their
equipment. They will supply and use the correct cartridges.
O/H Lines – Does the ICP have access to authorised OH linesmen when required.
Network anomalies – Network anomalies are not recorded and it is down to local
experience and knowledge. Told on handover or liaise to see if job is viable and cost
effective.
Existing documentation – As raised in Section 16.2 „Energisation‟ The documentation and
forms are heavily weighted and designed for use by an SAP to issue to an ISAP or ICP
representative. The documentation and related forms and process flows will either have
to be re written or extra appendices/forms created. This will still have to be documented
within the MSPs. As this documentation is reviewed on a tri-annual basis and has
recently completed a major review.
Handover – When do we take formal handover and responsibility of the substation and
subsequent equipment.
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