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ENEnglish繁中繁體中文ESEspañolARالعربيةFRFrançaisITItalianoPTPortuguêsRUРусскийDEDeutschJA日本語VITiếng ViệtKO한국어THไทยTRTürkçe

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Engineering Calculator · 096

Cable Service Loop Length Calculator

Estimate cable length in a service loop from loop radius, two straight legs and number of semicircular bends.

Installation planning
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

Estimated loop length1,142.48mm
Curved cable length942.48mm
Straight cable length200mm

Formula
Lloop=2Ls+nbπRlL_{\mathrm{loop}}=2L_s+n_b\pi R_l

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

Direct answer

What this result means

Estimate cable length in a service loop from loop radius, two straight legs and number of semicircular bends. The relationship Lloop = 2Ls + nπR ties loop bend radius, straight leg length and semicircular bends directly to the reported result. Each counted bend is a semicircle with the entered centreline radius. Treat the value as a transparent preliminary calculation, then compare it with the actual cable-entry assembly and current product documentation.

Cable Service Loop Length Calculator engineering relationship diagramLloop = 2Ls + nπR defines the calculation shown here. Each counted bend is a semicircle with the entered centreline radius. Keep the entered units with the result so another reviewer can reproduce the method. This dedicated schematic represents cable service loop and is not to scale.SERVICE LOOP · TOOL 096Loop bend radiusEstimated loop length
Calculator-specific engineering relationship diagram — schematic, not a product drawing, and not to scale.

Formula & theory

Make the assumptions visible.

Lloop = 2Ls + nπR defines the calculation shown here. Each counted bend is a semicircle with the entered centreline radius. Keep the entered units with the result so another reviewer can reproduce the method.

Calculation relationship
Lloop=2Ls+nbπRlL_{\mathrm{loop}}=2L_s+n_b\pi R_l

Lloop = 2Ls + nπR defines the calculation shown here. Each counted bend is a semicircle with the entered centreline radius. Keep the entered units with the result so another reviewer can reproduce the method.

Variables

LsStraight leg lengthmm
nSemicircular bendspcs
LcurvedCurved cable lengthmm
LstraightStraight cable lengthmm

Use sequence

From measurement to review

  1. Confirm loop bend radius and straight leg length from a controlled drawing, measurement or project document.
  2. Apply Lloop = 2Ls + nπR with consistent units and keep the entered values beside the result.
  3. Use estimated loop length only after checking actual loop geometry, cable bend limit, termination movement and installation slack policy.

Limits

What this calculation does not confirm

  • Each counted bend is a semicircle with the entered centreline radius.
  • 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 service loop length calculator calculate estimated loop length?

The tool applies Lloop = 2Ls + nπR to loop bend radius, straight leg length, semicircular bends. Each counted bend is a semicircle with the entered centreline radius. Keep the displayed units with the result so the calculation can be repeated.

02Calculator guidanceWhat does estimated loop length show for this service loop review?

Estimate cable length in a service loop from loop radius, two straight legs and number of semicircular bends. 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 loop geometry before using the cable service loop length calculator result?

The equation does not model actual loop geometry, cable bend limit, termination movement and installation slack policy. 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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