Mga electrical calculator
Libre ang bawat calculator, tumatakbo sa browser mo, at hindi nangangailangan ng account. Ipinapakita ng bawat resulta ang mga hakbang nito at ang clause o table na ginamit nito, para sa New Zealand at Australia. Karamihan ng trabaho ay nagsisimula sa cable size calculator, na nagsi-size ng cable ayon sa AS/NZS 3008 at tinitingnan ito laban sa AS/NZS 3000.
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Mga cable
22 calculator- Cable sizeFind the smallest cable size that passes each check.AS/NZS 3008.1.2AS/NZS 3008.1.1AS/NZS 3000
- Voltage dropCalculate voltage drop on a cable run and check the limit.AS/NZS 3008.1.2AS/NZS 3008.1.1AS/NZS 3000
- Loop impedanceCheck earth fault loop impedance against the maximum Zs.AS/NZS 3008.1.2AS/NZS 3008.1.1AS/NZS 3000
- Fault ratingCheck that a conductor can withstand the fault current.AS/NZS 3008.1.2AS/NZS 3008.1.1AS/NZS 3000
- Conduit fillCheck that a cable bundle fits in a conduit.AS/NZS 3008.1.2AS/NZS 3000
- Voltage riseCalculate voltage rise for embedded generation or PV.AS/NZS 4777.1AS/NZS 3008.1.2AS/NZS 3008.1.1
- Underground cableDepth of cover and separation for a buried cable.AS/NZS 3000
- Segregation and separationCheck what may share an enclosure and the separation.AS/NZS 3000
- Maximum circuit lengthLongest run that voltage drop and the fault loop allow.AS/NZS 3000AS/NZS 3008.1.2
- Simplified selectorRead the Appendix C device rating and voltage drop tables.AS/NZS 3000
- Minimum conductor sizeLook up the smallest conductor allowed for a circuit.AS/NZS 3000
- Imperial cableFind the device rating for an old imperial cable.AS/NZS 3000
- Comms cable selectorPick a comms cable and check the run length.Walang standard
- Aerial clearancesLook up aerial conductor clearances and spacing.AS/NZS 3000
- Site cord lengthThe longest a cord or cable may run on a construction site.AS/NZS 3012
- Loop power budgetCheck the voltage a 4–20 mA loop leaves the transmitter.AS/NZS 3008.1.2AS/NZS 3008.1.1
- DC cable sizeSize a d.c. cable up to 1500 V for current and voltage drop.AS/NZS 3008.1.1
- Correction factorsRead each correction factor and the rating a cable needs.AS/NZS 3008.1.2AS/NZS 3008.1.1AS/NZS 3000
- Total voltage dropAdd the drop of mains, submain and final against 5 %.AS/NZS 3000AS/NZS 3008.1.2AS/NZS 3008.1.1
- Conductor coloursFind wire colours for fixed wiring and cords, old and new.AS/NZS 3000AS/NZS 3760
- Cable tray fillTray or ladder width, tiers, kg/m and the grouping factor.AS/NZS 3008.1
- Cable loss costWhat a cable size up saves in energy, cost and CO2.AS/NZS 3008.1
Proteksyon
10 calculator- IDMT protectionPlot the trip curves of inverse-time overcurrent relays.IEC 60255IEEE C37.112
- RCD selectionCheck if an RCD is required and test the trip time.AS/NZS 3000Electricity (Safety) Regulations 2010
- Switchboard formCheck separation, access and clearances for a switchboard.AS/NZS 3000
- Circuit checkCheck an installed circuit: cable, device, drop and Zs.AS/NZS 3008.1.2AS/NZS 3008.1.1AS/NZS 3000
- Fault level at a boardProspective fault current at a board from its source.AS/NZS 3008.1.2AS/NZS 3008.1.1AS/NZS 3000
- RCD arrangementCheck circuits per RCD and the lighting split.AS/NZS 3000
- Circuit chartMake a board circuit chart and the labels it needs.AS/NZS 3000
- RCD leakage budgetHow much standing leakage one RCD can carry.AS/NZS 3000AS/NZS 3760
- MCB trip curvePlot an MCB trip band against the cable it protects.AS/NZS 3000AS/NZS 3008.1.2AS/NZS 3008.1.1
- Surge protectionIs a surge protective device required or recommended here?AS/NZS 3000
Mga load
15 calculator- Maximum demandEstimate maximum demand for domestic or non‑domestic loads.AS/NZS 3000 Table C1/C2
- Full load currentCalculate full load current from power, voltage and phase.Walang standard
- MotorFind motor full load current, starting current and torque.Walang standard
- BatteryCalculate battery bank capacity and autonomy for a load.Walang standard
- Circuit loadingCount the points a final subcircuit can carry.AS/NZS 3000
- Max demand by phaseSpread the load over three phases and see the imbalance.AS/NZS 3000
- Lighting lumen methodLuminaire count and grid for a room by the lumen method.AS/NZS 1680.1AS/NZS 1158.1.2
- EV charger circuitCheck EV chargers for spare capacity, cable size and RCD.AS/NZS 3000AS/NZS 3008.1.2AS/NZS 3008.1.1
- Power factor correctionFind the capacitor kvar to lift a power factor.AS/NZS 3000
- Max demand by floor areaEstimate commercial demand from floor area and use.AS/NZS 3000 Table C3
- Spare capacitySee if a new load fits the main switch of a supply.AS/NZS 3000 Cl 2.2.2
- Motor circuitCable, breaker, contactor and overload for one motor.AS/NZS 3000AS/NZS 3008.1.2AS/NZS 3008.1.1
- Motor starting methodsCompare DOL, star-delta, soft start and drive starts.Walang standard
- VSD motor leadCheck a drive’s motor lead: peak voltage, length and cable.AS/NZS 3000
- Load scheduleMaximum demand of a site’s boards by switchboard diversity.AS/NZS 3000
Power
12 calculator- Three phase powerConvert between power, current, voltage and power factor.Walang standard
- TransformerCalculate transformer full load current and impedance.Walang standard
- Generator currentFull load and fault current of a generator from its kVA.Walang standard
- Ohm's lawAny two of V, I, R and P give the other two.Walang standard
- Generator sizingSize a generator from a load list with motor starting.Walang standard
- Transformer inrushCheck a transformer’s switch-on inrush against its breaker.AS/NZS 3000
- Transformer sizingSize a transformer from the demand, with growth and losses.Walang standard
- UPS sizingSize a UPS and its battery for a run time.AS/NZS 3000
- Neutral currentThe neutral current of an unbalanced three‑phase load.AS/NZS 3000
- Voltage unbalanceVoltage or current unbalance from three line readings.Walang standard
- HarmonicsTHD, neutral current and K-factor from a spectrum.AS/NZS 3008.1AS/NZS 3000
- Battery duty cycleSize a stationary battery and charger to a duty cycle.Walang standard
Solar
5 calculator- PV string sizingModules per string, string current and isolator for PV.AS/NZS 5033AS/NZS 4777.2
- Home batterySize a home battery for the solar evening load.AS/NZS 5139
- PV array isolator and earthingRate the PV array cables, d.c. isolator and earthing.AS/NZS 5033AS/NZS 3000
- Battery location checkCheck where a home battery can go under AS/NZS 5139.AS/NZS 5139
- Battery arc flash and classBattery DVC, hazard class, arc flash energy and PPE level.AS/NZS 5139
Kaligtasan
8 calculator- Arc flashEstimate the energy of an arc flash and its PPE category.IEEE 1584-2018IEEE 1584-2002
- Construction site supplySupply, RCD and test rules for a construction site.AS/NZS 3012
- Show and carnival wiringShow wiring RCD checks, plus site wiring depth and height.AS/NZS 3002Electricity (Safety) Regulations 2010
- Wet area zonesFind the Section 6 zone, IP and RCD near water.AS/NZS 3000
- Obtrusive lightCheck outdoor light at a boundary window by AS/NZS 4282.AS/NZS 4282
- Downlight clearanceIC, CA90 or Non‑IC: may insulation touch the light?AS/NZS 3000
- Accessory locationPower points near a cooktop, gas cylinder, vent or sink.AS/NZS 3000
- IP ratingDecode an IP code and find the least for a location.AS 60529AS/NZS 3000
Pagsusuri
3 calculator- Test resultsCheck measured test results against Section 8 limits.AS/NZS 3000AS/NZS 3017Electricity (Safety) Regulations 2010
- Test and tagRetest intervals and pass limits for portable gear.AS/NZS 3760
- Test schedulePrint a board test sheet with the limit for each test.AS/NZS 3017AS/NZS 3000Electricity (Safety) Regulations 2010
Fire
4 calculator- Sounder levelFind the sound level a fire alarm system must reach.NZS 4512
- Fire alarm cablingLook up cable and circuit rules for fire alarm systems.NZS 4512
- Fire alarm batterySize the standby battery for a fire alarm panel.NZS 4512
- Detector spacingDetector spacing and count for a room or corridor.NZS 4512
Regulasyon
3 calculator- Regulatory pathwayFind the paperwork for a job in NZ or Australia.Electricity (Safety) Regulations 2010
- Assessment intervalsRead the assessment interval reg 75 and NZS 4512 state.Electricity (Safety) Regulations 2010NZS 4512
- Hand-held supplyRead the supply arrangements regs 88 to 89A list.Electricity (Safety) Regulations 2010