Power, Lighting, Containment & ELV · NRM2 Section 39 (Electrical Engineering Services)

UK Electrical Estimating Services (BS 7671 Compliant Takeoffs)

Full electrical engineering takeoffs measuring containment tray/trunking, SWA sub-mains, luminaire types, small power accessories, distribution boards, fire alarms, and EV charging.

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How is electrical measured under RICS NRM2?

Competitive UK electrical bidding demands point-by-point discipline across lighting controls (DALI/PIR), containment separation (power vs Cat6A), BS 5839 fire detection zones, access control, and 18th Edition BS 7671 protective switchgear. We provide ready-to-price Excel schedules built to ECA-style workflows.

  • Breaks down SWA sub-main runs using vertical riser heights plus floor horizontal cable-tray pathways and gland kits.
  • Isolates fire-rated FP200/enhanced cabling for smoke vents, dry-riser interfaces, and evacuation alarms.

Which deliverables and drawings are involved?

  • Point-count & accessory schedule by room/floor
  • Sub-main SWA & containment linear takeoff
  • Fire alarm, emergency lighting & testing/NICEIC checklist

Drawings & Inputs Accepted

  • Lighting, small power & containment layouts
  • Fire alarm, security & data ELV plans
  • LV schematic & distribution board schedules

Measurement & Deliverable Parameters

How are UK electrical takeoffs structured for tender accuracy?

Electrical Estimating — UK Measurement Units, Deliverables & Workflow Specification
Estimating ParameterTechnical SpecificationStandard / Audit Basis
Work Breakdown & UnitsNRM2 Section 39 (Electrical Engineering Services) in m, nr, circuits, setsScaled PDF / DWG plans at 1:50 & 1:100 (dimensions in mm / m)
Waste & Prelim SeparationNet physical takeoff plus 5%–10% typical trade waste splitKeeps net order counts transparent for merchant tenders
Deliverable Workbook100% unlocked formula Excel + colour-coded PDF overlaysIncludes formal RFI log flagging drawing ambiguities
Turnaround & File Transfer24–48 hrs (domestic/single trade) · up to 25 MB uploads3–5 working days typical for multi-trade commercial tenders

Calibration note: 1:50 and 1:100 architectural and structural drawings are scaled to 25 mm masonry tolerances and 100 mm thermal zones, isolating 5 percent to 10 percent wastage from net quantities.

Where is electrical estimating typically applied across UK projects?

Commercial Cat A/B office electricalMulti-dwelling residential 1st & 2nd fixIndustrial high-bay LED & 3-phase powerEV charging hub & solar PV containment

Targeted UK Coverage

Electrical Estimating by UK City, County & Postcode District

Major Cities

Electrical in ManchesterElectrical in BelfastElectrical in CoventryElectrical in CambridgeElectrical in Reading

Counties

Greater ManchesterCheshireBerkshire

Commercial Postcodes

EC1M1BT1

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Electrical Estimating FAQs

Do electrical takeoffs include cable tray, basket, conduit, and dado trunking lengths?

Yes. Cable management pathways are measured separately by width/gauge alongside drop rods and earthing continuity bonds.

Are DALI lighting controls, emergency exit signs, and PIR sensors counted individually?

Yes—each luminaire code (normal, emergency maintained/non-maintained, self-test), presence detector, and scene plate is counted cleanly.

Do you measure structured cabling (Cat6/Cat6A), fibre backbones, CCTV, and door access?

Yes. Data outlets, patch cabinets, CCTV cameras, Paxton/access readers, and video intercoms are detailed cleanly.

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