scope:

This Specification applies to priority pump sites. These are pump sites where structural or serviceability failure would result in restrictions to the operational railway / highway networks (e.g. by track, station, highway or underpass closure) only after 4 hours or more, but in less than 24 hours; this is termed the Pump Failure Impact Time (PFIT). Refer to the current version of London Underground (LU) Category 1 Standard S1056 Civil Engineering - Pump Drainage Systems for the detailed methodology concerning determination of pump site criticality. The LU Asset Management System (AMS) is called ELLIPSE; all priority pump sites are labelled as such in ELLIPSE.

Purpose

The purpose of this Technical Specification is to provide designers and tenderers/ contractors with the minimum technical standards and physical requirements that pump control equipment (at priority pump sites) shall be designed and constructed to meet.