Electrical installation work

Tender description

NIE Networks wishes to procure the services of provision of experienced electricians for the installation, refurbishment and maintenance of sub station high and low voltage plant/equipment throughout Northern Ireland. Lot 2: Distribution This lot includes: — the installation of new 33 kV indoor circuit breakers; — the installation of new 11 kV or 6.6 kV indoor circuit breaker boards; — The Installation of new 11 kV and 33 kV transformers; — the replacement of a 33 kV outdoor circuit breakers to a 33 kV indoor circuit breakers; — the replacement or installation of a disturbance recorders; — the rewire or installation from new, AC systems of substation control rooms and associated buildings; — the rewire or installation from new, DC systems associated with different substation voltage levels. This lot will include dayworks provision for experienced and qualified electrical contractors to install high voltage substation equipment to substation sites. This lot will include the provision of inspections at 11 kV substation sites to include: — security of site (perimeter fencing, walls, etc.); — verification of existing plant and equipment to records; — recording of maximum demand readings. This lot includes: — the removal of redundant equipment including scrapping of materials via plant workshop; — the installation or upgrade of new earthing systems within a substation environment; — the installation of external lighting systems in LIVE operational substations; — the rewire or installation from new, AC systems of substation control rooms and associated buildings; — the rewire or installation from new dc systems associated with different substation voltage levels; — the installation of standby generators; — the replacement or installation of existing high voltage CT’s; — the replacement or installation of existing high voltage VT’s; — the replacement or installation of existing high voltage CVT’s; — the replacement of 275 kV and 110 kV bushings on HV equipment; — the replacement or installation of 275 kV and 110 kV disconnectors; — the replacement of existing earthing transformers with equivalent or similar; — the replacement of existing radiator cooling banks on HV equipment; — the replacement of HV protection systems and associated protection panels; — the replacement of HV outdoor circuit breakers; — complete 275/110 kv tap changer refurb; — the installation of new 110 kV and 275 kV transformers.