Rates, Norms & Durations
Building Services / E&M
Building Services / E&M Production Rates & Build Times:
5 entriesSource page: Building Services / E&M
Subjects on this page
| Activity | Entry (verbatim) | Source |
|---|---|---|
| Define First Fix | Definition of Building Services - First Fix Environmental Control Systems This shall include the installation of all ECS equipment such as MCC's, fans and AHU's. In addition the installation of all primary and secondary ductwork and pipework systems (including valves, dampers, access panels, supports, anchors and guides) shall be completed. Where necessary, due to concealment or other construction restraints, sectional testing shall be completed. Electrical Systems This shall include the installation of all transformers and switchboards. In addition, the installation of all primary and secondary cable containment and support systems, such as ladder racks, cable trays, cable trucking and conduits including brackets, anchors and guides shall be completed. Plumbing, Drainage and Wet Fire Systems This shall include the installaion of all duty and standby pumps for flushing water system, sump pumps, potable water system, drencher system, water spray system, sprinkler system, fire services system, trackside fire fighting system. In addition, the installation of all primary and secondary pipe runs, whether horizontal or vertical, with associated valves, supports, anchors and guides. AFA System This shall include all primary and secondary cable containment for the AFA system. Where necessary, due to concealment or other construction restraints, sectional testing shall be completed. | Define First Fix |
| Define Second Fix | Definition of Building Services - Second Fix Environmental Control Systems This shall include the installation of fan coils, EP panels and PLC panels. In addition, the insulation of all primary and secondary ductwork as well as pipework systems; leakage tests for ductwork and pipework; power and control cabling & wiring including termination; complete installation of pneumatic system. Electrical Systems This shall include the installation of isolators, sockets, lighting, distribution boards, UPS/CBS/Batteries. In addition, the installation and testing of all primary, secondary and final circuitry, cabling and wiring including terminations for isolators, sockets, lighting, transformers, switchboards, distribution boards, UPS/CBS/Batteries and any other power and control points shall be completed. All electrical installation and testing work must comply with the HV and LV Power On Dates. Plumbing and Drainage and Wet Fire Systems This shall include the installaion of the controls for flushing water system, sump pumps, potable water system, drencher system, water spray system, sprinkler system, fire services system, trackside fire fighting system. In addition, the power and control wiring and cabling including termination shall be completed. The hydraulic testing of all piping systems for pumps and the associated pipe works shall be completed. AFA Fire Systems This shall include cabling and wiring for AFA system, termination of cabling and wiring to the AFA panels and the AFA loops complete. This shall also include the installation of detector base plates. | Define Second Fix |
| Escalator Installation | Modular Design Escalators PackagesThe escalator trusses are usually delivered in 1.6 m cubes, which include the internal workings etc. Normally 3 to 4 sections go to make up a standard escalator (an 11 m rise), however sizes and lengths vary greatly.Delivery ImplicationsThe largest single element is the nose piece which is approximately 1.8 m wide, 3 m long and 2.5 m high. This section weight 1,500 kg. The other truss sections weight only 1,000 kg at most. The maximum weight of an entire escalator (10 m rise) is estimated at 15,000 kg. It is usual to being the escalators in from the top landing and lower the whole truss down into its final position. Power supply being 415 volt 3 phase hard wired, T&C may be done with temporary supplies.Typical Project StrategySequence /timing of works:16 wks = Develop concept design / submit for approval.12 wks = Prepare preliminary design / submit for approval.60 wks = Manufacture, test & site delivery, in conjunction with completion of final design.4 wks = Initial delivery placing and connection of truss sections.12-16 wks = Install escalators and commission.12 wks = Test running of escalators.12 wks = Trial running of escalators / System Operational.Typical Escalator Installation Sequence Timing of single escalator:1 wks = Assemble sections and truss position, align, level.6 wks = Escalator contractor "stop work" period, to allow ABWF contractor to complete surrounding finishes.5 wks = Final escalator installation, "Phase B" decking installation and glazing etc.0 wks = Escalator Power-On required.2 wks = Test performance "Phase C" prior to escalator Test Running.2 wks = Full load test "Phase D" of escalator.1 wks = Final test "Phase E"1 wks = EMSD Inspection of installation.1 wks = "Phase F" inspection.Total installation time being 12 - 14 weeks, excluding the "Stop Work" period during which the civil finishing works are completed.Task / DescriptionSlow Ave Fast Units Truss type, Overall Installation (excl arch finishes)14.0 12.0 11.0 wks Truss type, Manufacture, test and deliver- 60.0 48.0 wks Truss type, Phase A assemble truss , position/level- 1.0 - wks Truss type, Stop-Work for surrounding finishes8.0 6.0 4.0 wks Truss type, Phase B decking and glazing etc- 5.0 - wks Truss type, Phase C performance testing- 2.0 - wks Truss type, Phase D full load testing- 2.0 - wks Truss type, Phase E final test and inspection- 2.0 - wks | Escalator Installation |
| Fibre Cables | There are 4 phases to laying fibre cables - The laying of the duct, the pulling of the fibre cable, the splicing/terminating of the cable and the testing of the cable.The production rate for the laying of the duct will be as any similar small diameter pipe and dependent on the location and linear distance.The cable pulling phase has less to do with the length of the pull and much more to do with the number of pulls required - ie draw pit to draw pit distance is less important than the number of times the cable pulling operation is started and stopped. Production is therefore the number of pulls per day. The installers will generally attempt to install the cable from termination point to termination point in one day. Depending on the environment, an assumption of one pull a day is conservative and 2 a day being more optimistic. Crew sizes are small, 3/4 operatives.The termination is obviously a speciallist job and likely to be carried out by different small crew than the pulling of the cable.The duration is dependent on the number of fibres in the cable, but an assumption of one day per location and another day for testing at that location is reasonable. | Fibre Cables |
| Lift Installation | Lift InstallationSequence of WorkA standard installation sequence for a "conventional hydraulic lift with 2 - 3 storeys and doors etc.Handover of lift shaft structure and associated lift machine room.Deliver all materials to site, 2 weeks.Hoisting of machine roof equipment, setting out and plumbing, pit channel, car brackets and guide rails, 10 days.Hoist in hydraulic arm, piping, lift shaft trunking and conduits etc and wiring of lift shaft, 9 days.Positioning of motor control room equipment, machine room trunking and conduits and machine room wiring etc, 13 days.Install sill angles and architraves etc, landing grouting done by others and landing doors, 9 days. Partially dismantle lift shaft scaffolding and install pit equipment, 5 days.Install car frame and platform, car wall panels and ceiling, car door operators and wiring of lift car, 14 days.Architectural finishing stop work period, to install external glazing (if any) complete landing finishes and lift shaft final BS lighting, detectors etc, 12 days.Lift machine room Power‑On required.Initial tuning and adjustments, 7 days.Final tuning and adjustments, 7 days.Submission of Form 5 to EMSD.Interface testing with other contractors, carried out at later state (coordinated with others), duration of 6 days.Final test and commissioning with client and handover, 2 days.ProcurementLifts are long lead items - from 12 weeks for a standard lift and considerably longer (1 to 1.5 years) for specially designed installations Installation PeriodsTherefore, the overall duration of the installation, including delivery, architectural finishes, by others, and Form 5 submission etc...Rule Of Thumb Upto 8 storeys = 12 - 16 weeks Upto 15 storeys = 16 - 24 weeksMore Accurately 2 to 3 storey installation = 3 wks/level4 storeys and above = 2 wks/levelTest & Commissioning Rule of thumb, allow 2 weeks plus 1 day per lift per storey.Lift InstallationTask / DescriptionSlow Ave Fast Units Hydraulic Lift, Install 2 to 3 storeys- 3.0 - wks/floor Hydraulic Lift, Install 4 storeys and above- 2.0 - wks/floor Hydraulic Lift, Testing allow 2 wks plus- 1.0 - day/floor Standard Lift, Manufacture, test and deliver- 12.0 - wks Non-Standard Lift, Manufacture, test and deliver75.0 65.0 52.0 wks | Lift Installation |
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These values were contributed by members and reflect the conditions, methods and regions they worked in. They are a starting point for estimating, not a standard. Check them against your own records, the site conditions and the contract before relying on them.