Operations and Engineering Services Framework

This lot covers mechanical and general engineering support services required to support CSL operations, including:

mechanical fitting and repair

light fabrication

welding, including coded welding where relevant

ancillary equipment repair

temporary mechanical arrangements

repair or modification of non-integrated mechanical systems

basic plant and equipment support where within CSL-controlled scope

non-OEM HVAC mechanical support

metalwork, brackets, supports and local fabricated solutions

mechanical support to temporary operational fixes Additional information: Exclusions Specific to Lot 1

rolling stock mechanical systems covered under TSSSA

depot mechanical systems owned by Alstom or site owner

safety-critical traction, brake or other OEM systems

This lot covers electrical and controls support services, including:

low voltage electrical works

temporary electrical arrangements

non-integrated lighting systems

control panel works on non-OEM assets

fault finding on approved systems

cable routing and connection for temporary arrangements

temporary power distribution arrangements

minor electrical support to CSL-controlled ancillary assets

non-integrated controls support

local system modifications outside OEM scope Additional information: Exclusions Specific to Lot 2:

OEM-controlled rolling stock electrical systems

depot fixed electrical infrastructure

HV systems unless expressly stated and properly authorised

works already within Alstom or CAF responsibility

This lot covers plumbing and welfare-related operational support, including:

plumbing repairs to CSL-controlled systems

minor drainage support

leak response

welfare facility supports where within CSL commissioning authority

temporary water arrangements

repair or replacement of localised pipework or fittings in approved scope

response to water ingress or similar operational issues

temporary welfare service continuity arrangements

hygiene related support associated with welfare systems Additional information: Exclusions Specific to Lot 3:

depot-wide plumbing infrastructure owned by site owner

integrated train plumbing systems under TSSSA

major building services works

This lot covers specialist support services, including:

non-destructive testing

specialist inspections

corrosion treatment or assessment

temporary works design

engineering assessment services

lifting support and related specialist advice

specialist technical investigations

reporting and assurance support on defined interventions

specialist measurement and testing services

local engineering assurance where required Additional information: Exclusions Specific to Lot 5:

OEM certification work beyond supplier competence or authority

services reserved to another contract or statutory body

services requiring a separate regulated procurement due to value or strategic nature

This lot covers digital and data support services, including:

data extraction from approved sources

data cleansing and transformation

creation of structured datasets

support to predictive maintenance initiatives

support to condition monitoring initiatives

support to third party analytics providers engaged by CSL

set up of non-integrated monitoring devices or sensors

dashboard or reporting support directly related to operational use cases

data handling support linked to engineering or operational investigations

technical support to improve data usability for CSL decision making Additional information: Exclusions Specific to Lot 6:

unauthorised access to OEM restricted systems

modification of CAF or Alstom systems without approval

large-scale software development or enterprise platforms not suited to this Framework

This lot covers emergency response and incident support services, including:

24/7 call-out support

urgent operational interventions

rapid deployment to stabilise or mitigate service-affecting issues

emergency temporary works

immediate support to restore operational continuity

urgent attendance for fault investigation outside restricted scope

emergency logistics and mobilisation

provision of on-call resources to support operational continuity

urgent support to containment, isolation or temporary workaround activity Additional information: Exclusions Specific to Lot 6:

emergency works falling wholly within CAF or Alstom contractual responsibility

blue light or statutory emergency services functions

uncontrolled instruction of works without CSL authorisation