Independent planning instruments · UK
Twelve deterministic planning calculators for UK site power, exposure, dust and consumables — every result stamped with its basis, assumptions and sources.
at the exposure action value (EAV)
5 m/s² × 2 h trigger time
Trigger time is used; shift length is not used.
Planning aid. Does not replace competent-person assessment, manufacturer instructions or HSE guidance.
Open the full HAVS calculatorST-01
Task: core drilling into declared unreinforced masonry. Entered diameter: 82 mm. Site supply: 110 V. Trigger-time data has not been supplied.
Missing data remains not assessed; it is never silently inferred.
ST-02
Calculate load and headroom without selecting a product.
PLANNING ESTIMATEReport running kVA, starting surge and entered margin.
PLANNING ESTIMATECalculate voltage drop for the lead run entered.
PLANNING ESTIMATEEstimate trigger and elapsed runtime from declared energy.
PLANNING ESTIMATECompare entered air demand with delivered FAD.
PLANNING ESTIMATECombine trigger times and vibration magnitudes.
STATUTORY EXPOSURE CALCULATIONCombine daily noise exposures without averaging decibels.
STATUTORY EXPOSURE CALCULATIONRoute declared dust conditions through sourced rules.
COMPATIBILITY CHECKCheck entered disc, speed, bore and cut-depth data.
COMPATIBILITY CHECKRoute diameter, depth and declared stop conditions.
COMPATIBILITY CHECKEstimate quantities from user-supplied yield and margin.
PLANNING ESTIMATECount inclusive dates and entered-price break-even.
PLANNING ESTIMATEST-03
Formulae and rules are sourced and dated.
Required data fails closed rather than being silently assumed.
Test vectors and registry versions are published.