Find a TenderAwarded
Published 5 Jul 2023, 14:56 BST

Official UK procurement notice

Isolation & Associated Services

Official notice

Authority: NETWORK RAIL INFRASTRUCTURE LIMITED (Central government)·Consortium: 2 public authorities

Framework agreement6 lotsServicesNegotiated procedure with prior call for competitionMax 3 lots per supplier
Framework ceiling (notional)£376,000,000total for 6 lots · framework ceiling, not attributable revenue · 1 value update
Submissions closed 27 Nov 2024awarded 1 May 2026
Lots 6max 3 won per supplier

What is being bought6 lots · detail below

Published requirement description

The supply of Isolation & Associated Services to Lot 1 Eastern Region, Lot 2 North West and Central Region and Lot 3 Wales and Western Region.

The framework will be available for any Network Rail (NR) national function to use. This sourcing activity will provide Network Rail with a comprehensive call-off isolation and construction services for 25kV AC, 750V DC, and 1500V DC Overhead Line (OLE) and 3rd and 4th rail DC conductor rail equipment (CRE) systems within the Service Areas covered by the regions listed above.

CPV: Electrical services · Mechanical and electrical engineering services · Operation of electrical installations · Repair and maintenance services of electrical distribution equipment

How this framework works

From the published notice
Places
up to 27 suppliers

Lots and requirements (6)Procurement structure

6 lots · no lot values published · win at most 3 of them
Lot #1Isolation & Associated Services Lot 1 EasternCancelled
Lot #2North West and Central RegionCancelled
Lot #3Wales and Western RegionCancelled
Lot #4Isolation & Associated Services - Eastern RegionRenewal

The services could comprise of professional services, technical solutions, labour, and tools and equipment to deliver planning, design, delivery, hand back and maintenance in relation to isolation and construction services as outlined in the applicable standards. The framework suppliers shall undertake activities including, but not limited to, the following:

a. Plan and implement an electrical safe system of work (isolation) taking account of the task(s), task delivery method(s), OLE/CRE infrastructure, the presence of residual electrical hazards and the required control measures,

b. Review isolation diagrams and instructions,

c. Plan and carry out pre-isolation walkouts as required by the relevant standards,

d. Attendance, by competent persons, at interface meetings including Network Rail Possession meetings, isolation interface meetings and ‘white board’ reviews as required by The Service Manager,

e. Liaison with third party isolation planners including Network Rail and its Principal Contractors,

f. Liaison with, and co-ordination of, Network Rail and other isolation service providers where the Consultant is identified as the ‘lead’ isolation provider – this includes the management and submission of all paperwork required to implement the electrical safe system of work,

g. Plan, complete and submit Isolation Details Forms (IDF) in accordance with the Service Area’s published timescales,

h. Identify earthing/shorting requirements, in accordance with the relevant standards, to provide safe working arrangements matched to the proposed task and task delivery activities and methodologies,

i. Identify and facilitate the management of traction power electrical hazards, in addition to OLE/CRE, affecting work activities (e.g. traction return bonding; red bonds; nearby distribution feeders or equipment; outside parties’ HV electrical supplies crossing the railway, etc.),

j. Identify and record all residual electrical hazards that will remain on site after isolation and earthing/shorting has been completed, and provide control measures e.g., RoLE equipment devices, as required by standards,

k. Where required, plan and undertake briefing of site personnel as required, permit work activities near OLE and CRE, and manage permit to work documentation until cancellation,

l. Where required, produce Work Package Plans (WPP),

m. Resource all isolation staffing requirements by provision of sufficient competent resources to meet the Service Area’s / Service Manager’s target timescales for implementation / removal of an isolation,

n. Provide all requisite Road Rail Vehicles (RRVs) to expedite isolation delivery,

o. Produce walk-out packs as defined by the client,

p. Provide approved isolation equipment to enable the safe isolation of OLE / CRE and be fully compliant with Network Rail’s Life Saving Rules,

q. Provide and check all task-specific equipment is fit for use and, where required, fully calibrated and registered,

r. Produce methodologies and task briefings,

s. Carry out the requisite Safe System of Work Pack planning in accordance with the relevant standards,

t. Carry out electrical risk assessments,

u. Maintain isolation diagrams and instructions up to date,

v. Compliance with the provision of periodic (four weekly) Key Performance Indicator data and other data to support the monitoring of leading and lagging performance indicators linked to Network Rail’s Electrical Safety Strategy,

w. Provide on-site messing facilities where agreed with the Service Manager,

x. Provide suitable and sufficient transport,

y. Liaise with the Network Rail Electrical Control Room,

z. Design, Planning and Installation of Permanent Earth Sections,

aa. Where required, plan and implement Return Conductor (RC) Isolations,

bb. Temporary Works Bonding,

cc. Heights and Staggers Survey,

dd. Condition Survey,

ee. Structure Bonding Works.

The above list is subject to change, e.g. legislation or NR standards or systems changes. Additional information: Please contact [email protected] for further information.

Delivery: UK · Eastern Region, England
Extensions: Three optional 12 month extensionsVariant bids: not allowed
Lot #5Isolation & Associated Services - North West & Central RegionRenewal

The services could comprise of professional services, technical solutions, labour, and tools and equipment to deliver planning, design, delivery, hand back and maintenance in relation to isolation and construction services as outlined in the applicable standards. The framework suppliers shall undertake activities including, but not limited to, the following:

a. Plan and implement an electrical safe system of work (isolation) taking account of the task(s), task delivery method(s), OLE/CRE infrastructure, the presence of residual electrical hazards and the required control measures,

b. Review isolation diagrams and instructions,

c. Plan and carry out pre-isolation walkouts as required by the relevant standards,

d. Attendance, by competent persons, at interface meetings including Network Rail Possession meetings, isolation interface meetings and ‘white board’ reviews as required by The Service Manager,

e. Liaison with third party isolation planners including Network Rail and its Principal Contractors,

f. Liaison with, and co-ordination of, Network Rail and other isolation service providers where the Consultant is identified as the ‘lead’ isolation provider – this includes the management and submission of all paperwork required to implement the electrical safe system of work,

g. Plan, complete and submit Isolation Details Forms (IDF) in accordance with the Service Area’s published timescales,

h. Identify earthing/shorting requirements, in accordance with the relevant standards, to provide safe working arrangements matched to the proposed task and task delivery activities and methodologies,

i. Identify and facilitate the management of traction power electrical hazards, in addition to OLE/CRE, affecting work activities (e.g. traction return bonding; red bonds; nearby distribution feeders or equipment; outside parties’ HV electrical supplies crossing the railway, etc.),

j. Identify and record all residual electrical hazards that will remain on site after isolation and earthing/shorting has been completed, and provide control measures e.g., RoLE equipment devices, as required by standards,

k. Where required, plan and undertake briefing of site personnel as required, permit work activities near OLE and CRE, and manage permit to work documentation until cancellation,

l. Where required, produce Work Package Plans (WPP),

m. Resource all isolation staffing requirements by provision of sufficient competent resources to meet the Service Area’s / Service Manager’s target timescales for implementation / removal of an isolation,

n. Provide all requisite Road Rail Vehicles (RRVs) to expedite isolation delivery,

o. Produce walk-out packs as defined by the client,

p. Provide approved isolation equipment to enable the safe isolation of OLE / CRE and be fully compliant with Network Rail’s Life Saving Rules,

q. Provide and check all task-specific equipment is fit for use and, where required, fully calibrated and registered,

r. Produce methodologies and task briefings,

s. Carry out the requisite Safe System of Work Pack planning in accordance with the relevant standards,

t. Carry out electrical risk assessments,

u. Maintain isolation diagrams and instructions up to date,

v. Compliance with the provision of periodic (four weekly) Key Performance Indicator data and other data to support the monitoring of leading and lagging performance indicators linked to Network Rail’s Electrical Safety Strategy,

w. Provide on-site messing facilities where agreed with the Service Manager,

x. Provide suitable and sufficient transport,

y. Liaise with the Network Rail Electrical Control Room,

z. Design, Planning and Installation of Permanent Earth Sections,

aa. Where required, plan and implement Return Conductor (RC) Isolations,

bb. Temporary Works Bonding,

cc. Heights and Staggers Survey,

dd. Condition Survey,

ee. Structure Bonding Works.

The above list is subject to change, e.g., legislation or NR standards or systems changes. Additional information: Please contact [email protected] for further information.

Delivery: UK · North West & Central Region, England
Extensions: Three optional 12 month extensions.Variant bids: not allowed
Lot #6Isolation & Associated Services - Wales & Western RegionRenewal

The services could comprise of professional services, technical solutions, labour, and tools and equipment to deliver planning, design, delivery, hand back and maintenance in relation to isolation and construction services as outlined in the applicable standards. The framework suppliers shall undertake activities including, but not limited to, the following:

a. Plan and implement an electrical safe system of work (isolation) taking account of the task(s), task delivery method(s), OLE/CRE infrastructure, the presence of residual electrical hazards and the required control measures,

b. Review isolation diagrams and instructions,

c. Plan and carry out pre-isolation walkouts as required by the relevant standards,

d. Attendance, by competent persons, at interface meetings including Network Rail Possession meetings, isolation interface meetings and ‘white board’ reviews as required by The Service Manager,

e. Liaison with third party isolation planners including Network Rail and its Principal Contractors,

f. Liaison with, and co-ordination of, Network Rail and other isolation service providers where the Consultant is identified as the ‘lead’ isolation provider – this includes the management and submission of all paperwork required to implement the electrical safe system of work,

g. Plan, complete and submit Isolation Details Forms (IDF) in accordance with the Service Area’s published timescales,

h. Identify earthing/shorting requirements, in accordance with the relevant standards, to provide safe working arrangements matched to the proposed task and task delivery activities and methodologies,

i. Identify and facilitate the management of traction power electrical hazards, in addition to OLE/CRE, affecting work activities (e.g. traction return bonding; red bonds; nearby distribution feeders or equipment; outside parties’ HV electrical supplies crossing the railway, etc.),

j. Identify and record all residual electrical hazards that will remain on site after isolation and earthing/shorting has been completed, and provide control measures e.g., RoLE equipment devices, as required by standards,

k. Where required, plan and undertake briefing of site personnel as required, permit work activities near OLE and CRE, and manage permit to work documentation until cancellation,

l. Where required, produce Work Package Plans (WPP),

m. Resource all isolation staffing requirements by provision of sufficient competent resources to meet the Service Area’s / Service Manager’s target timescales for implementation / removal of an isolation,

n. Provide all requisite Road Rail Vehicles (RRVs) to expedite isolation delivery,

o. Produce walk-out packs as defined by the client,

p. Provide approved isolation equipment to enable the safe isolation of OLE / CRE and be fully compliant with Network Rail’s Life Saving Rules,

q. Provide and check all task-specific equipment is fit for use and, where required, fully calibrated and registered,

r. Produce methodologies and task briefings,

s. Carry out the requisite Safe System of Work Pack planning in accordance with the relevant standards,

t. Carry out electrical risk assessments,

u. Maintain isolation diagrams and instructions up to date,

v. Compliance with the provision of periodic (four weekly) Key Performance Indicator data and other data to support the monitoring of leading and lagging performance indicators linked to Network Rail’s Electrical Safety Strategy,

w. Provide on-site messing facilities where agreed with the Service Manager,

x. Provide suitable and sufficient transport,

y. Liaise with the Network Rail Electrical Control Room,

z. Design, Planning and Installation of Permanent Earth Sections,

aa. Where required, plan and implement Return Conductor (RC) Isolations,

bb. Temporary Works Bonding,

cc. Heights and Staggers Survey,

dd. Condition Survey,

ee. Structure Bonding Works.

The above list is subject to change, e.g. legislation or NR standards or systems changes. Additional information: Please contact [email protected] for further information.

Delivery: UK · Wales & Western Region, England & Wales
Extensions: Three optional 12 month extensionsVariant bids: not allowed

What it takes to win
i

How this buyer will score bids.

The evaluation criteria and weights exactly as published on the notice, grouped by family (price, quality, social value and so on).

Evaluation split and conditions of participation as published; the tender pack may add more
Conditions of participation1
  • Suitability

    Suppliers will need to hold the following certification:

    RISQS Code A.A.9.3: Electrical Isolation Staff (DC Conductors) / Service

    RISQS Code A.A.9.4: Electrical Isolation Staff (OHLE) / Service

    RISQS Code C.C.3.4.9: Isolations Management Service / Service

    Minimum level(s) of standards possibly required:

    Suppliers awarded the contact will need to hold these certificates before starting the contract

Shortlisting
Please contact [email protected] As detailed in the tender documentation
Successive reduction
Candidates will be reduced successively across stages
What this means for your bid
  • “Isolation & Associated Services” is a framework: the contest is a place on its panel, up to 27 suppliers, not a single contract.

Procedure terms & legal framework

From the official record · publisher note attached
Procedure method
Negotiated procedure with prior call for competition
Legal basis
CELEX · 32014L0025 Utilities Contracts Regulations 2016 (Directive 2014/25/EU)
Procurement category
Services
Notice status
Awarded
Procurement threshold
Unspecified in notice
Regulatory regime
Standard
Commercial structure
Framework agreement
Who may use this agreement
Not stated in the notice; call-off rights may be limited to the establishing authority
Competition type
Competitive procedure
GPA / WTO covered
Yes (GPA)
Recurring procurement
No (one-off requirement)
First published
5 Jul 2023, 14:56 BST
Last source update
16 Jul 2026, 18:57 BST
Authority reference
37097
FTS notice number
2026/S 000-067465
Classification (CPV)
Electrical servicesMechanical and electrical engineering servicesOperation of electrical installationsRepair and maintenance services of electrical distribution equipment
Delivery area
UK
Official registry OCID
ocds-h6vhtk-03df0e Find a Tender
Contract terms
Electronic trading
e-invoicing allowed · electronic ordering · electronic payment

Publisher note: Please note any discussions which do occur will cease immediately should a formal competition ultimately be announced. Network Rail is committed to ensuring fairness, openness and transparency, and to following UK procurement regulations. The Periodic Indicative Notice is issued solely for the purpose of conducting pre-procurement market engagement via a request for information and does not constitute any commitment to undertake any procurement in the future. Interested parties will not be prejudiced by any response or failure to respond to the PIN event and a response to this PIN does not guarantee any invitation to participate in this event or any future procurement. This PIN does not constitute a call for competition to procure any services, supplies or works mentioned in this PIN and Network Rail will not accept any proposals offered in response to this PIN. Network Rail is not liable for any costs, fees, or expenses incurred by any party in replying to or attending any PIN event. Any procurement of any services, supplies or works by Network Rail will be carried out strictly in accordance with the provisions of the Utilities Contracts Regulations 2016. Any questions or clarifications in respect of this RFI should be addressed to [email protected] Network Rail would like to thank you in advance should you wish to respond to this Request for Information.

How it was run

Official notice
Run through: Jaggaer · Who buys & how to bid on JAGGAER
Supplier login requiredLanguage: EN
Access & registration note: Free; latest Chrome/Edge/Firefox only — corporate browsers fail

Tender documents are also served through a separate tool: https://networkrail.bravosolution.co.uk ↗

Appointment period ends
27 Nov 2024, 10:00 GMT
Submission channel
{"electronicSubmission","written"}
Accepted languages
en
Bid validity
240 days from the deadline
Detailed submission instructions & authority contactsFrom official release

Timeline

20 Oct 2023 → 16 Jul 2026 · 3 dates
  1. Next notice expected
    20 Oct 2023, 00:00 BST
  2. Admission / appointment period endsperiod end, not a bid countdown
    27 Nov 2024, 10:00 GMT
  3. Notice published96 days ago
    16 Jul 2026, 18:57 BST

Notice history

7 events · 4 releases on Find a Tender · since 5 Jul 2023
  1. Buyer details updated
    5 Jul 2023, 16:18 BST
  2. Published value published: £376,000,000
    28 Oct 2024, 17:40 GMT
  3. Status changed to active
    28 Oct 2024, 17:40 GMT
  4. Procurement method changed
    28 Oct 2024, 17:40 GMT
  5. Deadline published: 27 Nov 2024, 10:00 GMT
    28 Oct 2024, 17:40 GMT
  6. Buyer details updated
    28 Oct 2024, 17:40 GMT
  7. Status changed to complete
    16 Jul 2026, 18:57 BST
Published amendments (1 · 0 deadline changes)
WhenWhatBeforeAfterShift
—TextII.1.4Team Leidos wishes to stimulate interest, information and views across the market for the fulfilment of this requirement via this PIN. This prior information notice is not a means to submit a formal expression of interest in respect of any potential tender. Any resultant requirement will be subject to the Utilities Contracts Regulations and respective advertising action. Please note all informatio…Network Rail Infrastructure Ltd wishes to stimulate interest, information and views across the market for the fulfilment of this requirement via this PIN. This prior information notice is not a means to submit a formal expression of interest in respect of any potential tender. Any resultant requirement will be subject to the Utilities Contracts Regulations and respective advertising action. Please…

1 amendment published without a description.

Routine re-releases (4)
  • 2023-07: 1 release · 5 Jul 2023

Commercial outcome & contract awards

Published awards, contracts and bid statistics, not a forecast
Suppliers appointed 27admitted to the panel
Contracts signed 20latest 1 May 2026

27 suppliers are admitted to this framework without individual award values or dates; the JSON mirror lists them.

Contracts

  • Lot 1 Eastern

    Signed
    1 May 2026
    Value
    —
    Status
    active
  • Lot 1 Eastern

    Signed
    1 May 2026
    Value
    —
    Status
    active
  • Lot 1 Eastern

    Signed
    1 May 2026
    Value
    —
    Status
    active
  • Lot 1 Eastern

    Signed
    1 May 2026
    Value
    —
    Status
    active
  • Lot 1 Eastern

    Signed
    1 May 2026
    Value
    —
    Status
    active
  • Lot 1 Eastern

    Signed
    1 May 2026
    Value
    —
    Status
    active
  • Lot 1 Eastern

    Signed
    1 May 2026
    Value
    —
    Status
    active
  • Lot 1 Eastern

    Signed
    1 May 2026
    Value
    —
    Status
    active
  • Lot 1 Eastern

    Signed
    1 May 2026
    Value
    —
    Status
    active
  • Lot 1 Eastern

    Signed
    1 May 2026
    Value
    —
    Status
    active
  • Lot 1 Eastern

    Signed
    1 May 2026
    Value
    —
    Status
    active
  • Lot 2 North West and Central Region

    Signed
    1 May 2026
    Value
    —
    Status
    active
  • Lot 2 North West and Central Region

    Signed
    1 May 2026
    Value
    —
    Status
    active
  • Lot 2 North West and Central Region

    Signed
    1 May 2026
    Value
    —
    Status
    active
  • Lot 2 North West and Central Region

    Signed
    1 May 2026
    Value
    —
    Status
    active
  • Lot 2 North West and Central Region

    Signed
    1 May 2026
    Value
    —
    Status
    active
  • Lot 2 North West and Central Region

    Signed
    1 May 2026
    Value
    —
    Status
    active
  • Lot 2 North West and Central Region

    Signed
    1 May 2026
    Value
    —
    Status
    active
  • Lot 2 North West and Central Region

    Signed
    1 May 2026
    Value
    —
    Status
    active
  • Lot 3 Wales and Western

    Signed
    1 May 2026
    Value
    —
    Status
    active

Contracting authority & participating public bodies

2 public bodies on the notice

Network Rail Infrastructure Ltd

Contracting authorityCentral GovernmentRailway services 02904587 Waterloo General Offices, London, UK, SE1 8SWContact email, phone

Dispute resolution & review bodies

  • The High Court of JusticeReview body London

Official documents & specifications (2)

Official links; attachments are not copied

Tender pack and attachments

  • Economic and financial selection criteriatenderEconomic and financial selection criteria
  • Technical selection criteriatenderTechnical selection criteria