A trefoil cable cleat RFQ should be a short engineering data sheet, not a product name. The supplier needs enough information to size the cleat body, confirm short-circuit duty, choose material and prepare the right documents for project approval.
Wind-energy clamp hub → Matched product page → Related procurement guide: SS316 Trefoil Cable Cleat for Offshore Wind Projects / Related procurement guide: SS316 vs Aluminum Trefoil Cable Cleats: Which One to Specify? / Related procurement guide: Wind Turbine Cable Cleat RFQ Template: What Buyers Should Include / Related procurement guide: Cable Cleat Spacing in Wind Turbine Towers: Practical Design Notes / Related procurement guide: Wind Turbine Cable Cleat Inspection Checklist: What to Check During Maintenance / Related procurement guide: How to Specify Cable Cleats for Wind Turbine Tower Cables / Related procurement guide: How to Read an IEC 61914 Cable Cleat Test Report for Wind Projects / Related procurement guide: Cable OD and Bundle Size: What Buyers Must Send for Trefoil Cleats
For wind turbine towers, specify trefoil cable cleats by cable OD, trefoil bundle diameter, peak and RMS short-circuit current, support spacing, mounting rail or plate, corrosion environment, material preference and required documents.
- Best for
- Procurement and electrical teams preparing a wind turbine cable cleat RFQ.
- Not suitable for
- Replacing detailed project calculations; the designer must still confirm final spacing and fault-current assumptions.
- Selection steps
- 1 — Cable schedule -> 2 — fault-current data -> 3 — spacing and route -> 4 — material and corrosion class -> 5 — drawing and document requirements
- RFQ information
- Cable OD, trefoil layout, kA rating, spacing, mounting, material, quantity, certificates
§ 01 Start with the cable schedule
The cable outside diameter controls the cleat size. If three single-core cables are held in trefoil formation, provide the individual cable OD and any jacket tolerance. Do not quote only the conductor size, because different insulation systems can produce different outside diameters.
§ 02 Add short-circuit data
The cleat must restrain electromagnetic force during a fault. Provide peak current, RMS current and duration if available. If only one value is known, send it clearly and ask the supplier what assumptions are being used for IEC 61914 selection.
§ 03 Define spacing and route
Support pitch changes the load per cleat. A 300 mm pitch and a 900 mm pitch are not equivalent. State whether the route is vertical tower descent, nacelle exit, transition-piece route or onshore tray run, and include the mounting rail or plate detail.
§ 04 Select material by zone
Use SS316 or 316L for offshore and high-corrosion zones. Aluminum can be suitable for tower-internal or onshore routes where lower mass matters. Protective liners and compatible fasteners should be specified together with the body material.
§ 05 Ask for the right response
A strong supplier response should include a dimensional drawing, material statement, fastener grade, installation note and any short-circuit test or design basis. Link the final product choice back to SS316 or aluminum trefoil cable cleat pages before sending the PO.
| RFQ field | Why it matters |
|---|---|
| Cable OD / bundle size | Controls the cleat body size and liner fit. |
| Short-circuit current | Defines IEC 61914 restraint duty. |
| Support spacing | Changes force per cleat and installation quantity. |
| Environment | Drives SS316, aluminum, fastener and liner choices. |
| Documents | Prevents rework during project approval and incoming inspection. |
Evidence and decision boundary
- Direct evidence
- IEC 61914 defines cable-cleat requirements and configuration-specific tests. ISO 3506-1 defines stainless fastener properties; ISO 9227 defines corrosion-test procedures. None of these pages certifies a Weique assembly.
- Engineering inference
- Specify the complete assembly: cable arrangement and OD, prospective fault current, peak force, cleat spacing, mounting structure, fasteners, liner, environment and required evidence. A material name alone is not a performance specification.
- Typical or indicative value
- Spacing, fault duty and corrosion-life values remain project-specific until supported by the offered configuration and its applicable report.
Primary sources checked
- IEC 61914:2021 - cable-cleat requirements and tests
- ISO 3506-1:2020 - stainless fastener grades and property classes
- ISO 9227:2022 - salt-spray test methods and limits
- ISO 12944-9:2018 - offshore protective paint systems for carbon-steel structures
Related commercial route: Compare wind-turbine clamp systems and RFQ inputs.