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ENEnglish繁中繁體中文ESEspañolARالعربيةFRFrançaisITItalianoPTPortuguêsRUРусскийDEDeutschJA日本語VITiếng ViệtKO한국어THไทยTRTürkçe

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Engineering Calculator · 070

Cable Braid Coverage Estimator

Estimate a simplified single-layer fill and optical coverage from braid carriers, wires, pick density and cable diameter.

Electrical continuity
Start calculationReview the method

Live calculation

Enter the known values.

Units remain visible beside every field and result. Change any input to recalculate immediately in your browser.

01

Inputs

02

Results

Single-layer fill index20.37%
Estimated optical coverage36.59%
Estimated uncovered area63.41%

Formula
Cbraid,est=(2Fb−Fb2) 100%C_{\mathrm{braid,est}}=(2F_b-F_b^2)\,100\%

The calculation runs locally in this browser. Values are not submitted or stored by this tool.

Direct answer

What this result means

Estimate a simplified single-layer fill and optical coverage from braid carriers, wires, pick density and cable diameter. The relationship C ≈ (2F − F²) × 100% ties braid carriers, wires per carrier, individual wire diameter, picks per millimetre and diameter under braid directly to the reported result. The simplified geometric fill is capped at complete single-layer fill. Treat the value as a transparent preliminary calculation, then compare it with the actual cable-entry assembly and current product documentation.

Cable Braid Coverage Estimator engineering relationship diagramC ≈ (2F − F²) × 100% defines the calculation shown here. The simplified geometric fill is capped at complete single-layer fill. Keep the entered units with the result so another reviewer can reproduce the method. This dedicated schematic represents braid coverage and is not to scale.SCREEN GEOMETRY · TOOL 070Braid carriersSingle-layer fill index
Calculator-specific engineering relationship diagram — schematic, not a product drawing, and not to scale.

Formula & theory

Make the assumptions visible.

C ≈ (2F − F²) × 100% defines the calculation shown here. The simplified geometric fill is capped at complete single-layer fill. Keep the entered units with the result so another reviewer can reproduce the method.

Calculation relationship
Cbraid,est=(2Fb−Fb2) 100%C_{\mathrm{braid,est}}=(2F_b-F_b^2)\,100\%

C ≈ (2F − F²) × 100% defines the calculation shown here. The simplified geometric fill is capped at complete single-layer fill. Keep the entered units with the result so another reviewer can reproduce the method.

Variables

NwWires per carrierpcs
dwIndividual wire diametermm
DDiameter under braidmm
FSingle-layer fill index%

Use sequence

From measurement to review

  1. Confirm braid carriers and wires per carrier from a controlled drawing, measurement or project document.
  2. Apply C ≈ (2F − F²) × 100% with consistent units and keep the entered values beside the result.
  3. Use single-layer fill index only after checking actual braid angle, pick definition, carrier geometry and the manufacturer’s measured coverage.

Limits

What this calculation does not confirm

  • The simplified geometric fill is capped at complete single-layer fill.
  • Inputs describe one defined operating or measurement condition and use mutually consistent units.
  • The result does not by itself confirm product suitability, standards compliance, ingress performance or installation approval.

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Calculator FAQ

Use the number without losing the engineering context.

These answers clarify what the tool calculates and where a product-specific review still begins.

01Calculator guidanceHow does the cable braid coverage estimator calculate single-layer fill index?

The tool applies C ≈ (2F − F²) × 100% to braid carriers, wires per carrier, individual wire diameter, picks per millimetre, diameter under braid. The simplified geometric fill is capped at complete single-layer fill. Keep the displayed units with the result so the calculation can be repeated.

02Calculator guidanceWhat does single-layer fill index show for this screen geometry review?

Estimate a simplified single-layer fill and optical coverage from braid carriers, wires, pick density and cable diameter. It is a preliminary engineering value, not confirmation of a cable-gland model, standards compliance or installation approval.

03Calculator guidanceWhat should be checked about actual braid angle before using the cable braid coverage estimator result?

The equation does not model actual braid angle, pick definition, carrier geometry and the manufacturer’s measured coverage. Confirm those conditions against the actual cable-entry assembly, applicable requirement and current product documentation.

Product selection support

Connect the calculation with cable-entry product options.

Bepto Cable Glands can help relate a preliminary result to the product family and current model information for your application. You can start with the details you have; a complete drawing package is not needed to ask a question.

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