Calculator #65

AGL Commissioning Calculator & Checklist

Check CCR step currents and circuit voltage, work through the commissioning checklist, then print a signed summary.

About this tool

Check CCR output current at each brightness step, compare the circuit voltage with what the load should need, work through a commissioning checklist from pre-checks to acceptance, then print a signed summary.

Quick start

Circuit & Tolerances

Rule note

Set from your specification.

Rule note

Allowance between expected and measured voltage. Set from your specification.

CCR Step Currents

Rule note

Enter the nominal current for each brightness step of your CCR and the value you measured. The nominal values are typical for a 5-step, 6.6 A CCR and are only a starting point. Replace them with the figures from your CCR datasheet.

StepNominal (A)Measured (A)DeviationResult

Full-Brightness Voltage Check

Rule note

Sum of all lamp watts on the circuit.

Rule note

Placeholder. Use the datasheet value.

Rule note

Placeholder. Use 1.00 to ignore the reactive part of the voltage.

Rule note

Total loop resistance of the series cable. If left empty, the cable loss is taken as 0.

Rule note

Gives real-power loading %, so use the rating in kW as the manufacturer states it.

FAQ

AGL Commissioning Calculator and Checklist: Frequently Asked Questions

Quick answers on the CCR step current check, the voltage check and the commissioning checklist.

What does the AGL Commissioning Calculator and Checklist do?

It checks the CCR output current at each brightness step, compares the circuit voltage with what the load should need, and lets you work through a commissioning checklist from pre-checks to acceptance. It then produces a printable summary with a sign-off block for the contractor and the client or consultant.

How is a CCR step current checked?

Deviation % = (measured − nominal) ÷ nominal × 100. A step passes when the deviation is within the current tolerance in either direction, and a step is checked only when both the nominal and measured values are entered. The nominal values on the page are typical for a 5-step, 6.6 A CCR and are only a starting point, so replace them with the figures from your CCR datasheet.

How is the expected circuit voltage calculated?

P = Load ÷ efficiency + I² × Rcable, Q = (Load ÷ efficiency) × tan(cos⁻¹ PF), and the expected V = √(P² + Q²) ÷ Ifull. Ifull is the nominal value of the last step in the table, or 6.6 A if that is empty. The measured voltage passes when it is within the voltage tolerance of the expected value.

What does a difference between measured and expected voltage suggest?

A higher measured voltage suggests extra resistance such as a poor connector or splice, or lamps or transformers heavier than scheduled. A lower measured voltage suggests missing lamps or transformers, or a lighter load than scheduled.

How is CCR loading calculated?

Loading % = (Load ÷ efficiency + I² × Rcable) ÷ (kW × 1000) × 100. This is real-power loading, so enter the CCR rating in kW as the manufacturer states it. The CCR rating is optional.

How does the checklist work and what do the statuses mean?

Set each item to Pass, Fail, Pending or N/A. Complete % = Pass ÷ (items − N/A) × 100, and Pending and Fail items both count as not complete. The summary shows Ready only when no item is failed or pending and the circuit test has passed. Open failures means a checklist item or circuit check has failed, and Pending means items are still pending or no circuit test has been run. Your progress is saved only in this browser.

Are the tolerances and limits standard values?

No. The tolerances, transformer efficiency, power factor and nominal step currents are placeholders you set, and the tool does not know which specification applies. Set the tolerances from your specification.

Does this tool replace the acceptance requirements?

No. It supports your commissioning records but does not replace the project specification, the manufacturer's test procedures or the aerodrome authority's acceptance requirements, which set the actual limits and required tests.

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