Supplying Electrical and Lighting Materials for Projects: How to Prepare a Clear Quotation Request
, by عامر شوب, 3 min reading time
A guide to preparing a quotation request for electrical and lighting materials for projects and tenders: cables, extension cords, breakers, indoor and outdoor lighting, and the key specifications to mention.
Electrical and lighting items are among the items where pricing gets confused the most. The word "cable" alone can mean dozens of specifications, and a "floodlight" can be 10 W or 200 W. And since a mistake in electrical work is not only a cost but a safety issue, accuracy in the request matters here more than in any other item.
1. Cables: the cross-section is the basis
The conductor cross-section (in mm²) determines how much current it can carry. Choosing a smaller cross-section than needed causes overheating and a fire risk.
| Cross-section | Common use |
|---|---|
| 1.5 mm² | Lighting circuits |
| 2.5 mm² | Socket circuits and tool extension cords |
| 4 – 6 mm² | High-power appliances such as air conditioners and water heaters |
Note: the table is a general illustration; the final choice depends on the drawings and the electrical engineer's calculations.
When ordering cables, state: the cross-section, the number of cores (for example 3×2.5), the total length, and the roll length if it matters.
2. Extension cords and reels
On sites and in workshops, a weak extension cord is a common cause of burnt tools or tripped power. For heavy tools (rotary hammers, 9 inch grinders) use extension cords with at least 2.5 mm² cable.
2.5 mm extension cord, several lengths
For sites and heavy tools.
For sites and heavy tools.
FANTON 6-way extension socket, Italian standard, white 16A (41042)
For offices and administration.
For offices and administration.
3. Lighting: watts, light colour and mounting location
- Power in watts or light output in lumens.
- Light colour: cool white for warehouses and workshops, warm for offices and hospitality.
- Mounting location: ceiling, wall, ground floodlight, pole.
- Indoor or outdoor, and the water and dust protection rating for outdoor use.
- Solar power for places far from the grid.
Work lights and floodlights
UWK LED helmet light (VIZION Z3)
For work in tight and dark spaces.
For work in tight and dark spaces.
4. Emergency and power supplies
- Inverter: to run 220 V appliances from batteries; choose a capacity higher than the total load.
- Power banks and portable power stations: for sites and field trips.
- 12 V electric strike locks: for access control systems.
5. Electrician's tools
- Hydraulic cable crimpers for thick cables.
- Pliers, cutters and wire strippers.
- Network and cable testers.
- Step drill bits for drilling distribution panels.
A ready electrical items template
| Item | Unit | Quantity |
|---|---|---|
| Cable 3×2.5 mm² | Metre | 500 |
| Cable 3×1.5 mm² | Metre | 300 |
| 6-outlet extension with 2 m cable | Piece | 20 |
| 25 m cable reel with 2.5 mm² cable | Piece | 4 |
| Outdoor LED floodlight (specify the wattage) | Piece | 10 |
Tip
If you have an electrical drawing or a bill of quantities from the consultant, upload it as it is instead of rewriting it. That way you avoid transcription errors.
Browse the Electrical section and the Lighting section, or send your bill of quantities.