Preliminary estimation tools for LV installations — cable sizing, volt drop, fault level, power factor correction, motor starting and generator & solar sizing.
Practical tools for contractors, consultants and facilities teams planning low-voltage installations. Use them to test early assumptions, compare options and prepare a more complete brief for an engineering review.
Size conductors, busbars and earthing for LV distribution.
Select protective devices and assess prospective fault levels.
Convert load, plan motor starting and correct power factor.
Estimate generator, UPS battery, solar PV and lighting capacity.
Each tool recalculates as you type, explains the supporting ratings and carries your result into an engineering enquiry.
Minimum conductor size from continuous load current, phase arrangement, installation method and grouping or thermal derating.
Preliminary estimate only. Site conditions, protection coordination and the latest applicable standards must be checked before specification, purchase or installation.
Calculated results
Use this result for early planning and budgeting. It is not a construction design, certificate or approval to install.
Send the calculator result with your load schedule, single line diagram or site details. Our team will verify the assumptions and prepare a project quotation.
