Inputs

Building areas

Add one row for each relevant space, item, zone, document, or measurement set.

Row 1

Area name Enter the project label, note, or reference used for this calculation. Normal lighting area m2 Enter a numeric project value in m2 at or above 0. Emergency scope area m2 Enter a numeric project value in m2 at or above 0. Escape path count Enter a numeric project value between 0 and 10000. Exit sign count Enter a numeric project value between 0 and 10000. Emergency system present Tick when this condition applies or the record is available.

Row 2

Area count --

Normal lighting area -- m2

Emergency scope area -- m2

Normal scope share -- %

Scope split --

Scope warning --

Calculation details

Area count: --
Normal lighting area: -- m2
Emergency scope area: -- m2
Normal scope share: -- %
Escape path count: --
Exit sign count: --
Emergency system zone count: --
Emergency handoff required: --
Scope split: --
Scope warning: --

Important notes

Normal lighting calculations never establish emergency lighting or exit-sign compliance.
AS/NZS 2293 scope and responsible professional review are required where emergency or exit-sign items are present.

Formulas

\(\displaystyle \text{normal share} = \frac{A_{\mathrm{normal}}}{A_{\mathrm{normal}} + A_{\mathrm{emergency}}}\)
Separate ordinary lighting from emergency lighting and exit-sign records.

Record normal lighting, emergency lighting, escape path, and exit-sign scope separately.

Normal vs Emergency Lighting Scope Splitter is a planning aid. Keep the target source, product data, measurement method, and project assumptions with the result. Confirm compliance, installation, certification, and safety decisions with the responsible professional.

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Formulas

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