Estimator أدلة
تسعير مسار الكابل حسب مقاسه، وجدولة الكابل لمهمة.
- قراءة 3 دقيقةCommercial kitchen kW to amps full load currentTurning a 30 kW commercial kitchen nameplate load into 45.58 A at 400 V three phase, with the power factor step that a plain kW to amps sum leaves out.
- قراءة 3 دقيقةDairy shed motor current: 15 kW at 400 VFull load current, shaft speed, torque and DOL starting current for a 15 kW 400 V dairy shed vacuum pump motor, worked through the AmpSize motor engine.
- قراءة 5 دقيقةWhat size generator for a dairy shedSize a standby set for a dairy shed from its load list. The vacuum pump's start sets the size, then staggered steps, a drive and a soft starter shrink it.
- قراءة 5 دقيقةCable tray fill for a plant room: a second tierLay ten multicore cables on a 300 mm perforated tray in one layer, see when it takes a second tier, and carry the grouping factor into the cable size.
- قراءة 3 دقيقةGenerator full load current: 200 kVA to ampsA 200 kVA 400 V standby set converted to 288.68 A of full load current, 160 kW of real power and 2,405.63 A of initial fault current from 12 percent reactance.
- قراءة 3 دقيقةOffice maximum demand per phase with Table C2An office fitout load schedule assessed against AS/NZS 3000 Table C2, group by group, landing on 413.7 A across three phases and 137.9 A per phase.
- قراءة 1 دقيقةHow many amps can 10 mm² cable carry?10 mm² copper multicore PVC cable carries 50 A enclosed in air at 30 °C in NZ, so a 50 A breaker protects it. Clipped direct, it carries 58 A.
- قراءة 1 دقيقةHow many amps can 16 mm² cable carry?16 mm² copper multicore PVC cable carries 66 A enclosed in air at 30 °C in NZ, so it takes a 63 A breaker. Grouped with two circuits, it carries 46.2 A.
- قراءة 3 دقيقةSubmain voltage drop estimate for a 160 A tenderA price stage check on a 160 A submain over 80 m on 70 mm² XLPE. See the mV/A·m figure, the 1.89 percent drop and the length the budget allows.
- قراءة 3 دقيقةSubmain cable size for 3‑phase 100 A over 60 mA 100 A tenancy submain on tray over 60 m at 40 °C. See the derating chain, the four checks and why the loop impedance check sets the size at 70 mm².
- قراءة 3 دقيقة22 kW EV charger amps at 400 V three‑phaseA 22 kW three-phase EV charger draws 31.75 A at 400 V. See the inputs, the clause, the arithmetic and the current that feeds cable sizing and demand.
- قراءة 3 دقيقةGenerator sizing for a 150 kVA holiday parkA 150 kVA three-phase standby set at 400 V gives 216.51 A full load current, 120 kW real power and 1443.38 A fault current from one nameplate.
- قراءة 4 دقيقةElectrical estimating calculators NZ roundupA roundup of the calculators a New Zealand estimator uses at price stage, with a Table C2 fitout worked through to a demand of 102.95 A per phase.
- قراءة 4 دقيقةAmpSize vs jCalc vs free cable sizing toolsCompare AmpSize with jCalc and other free cable sizing tools. One 63 A three-phase submain shows which checks decide a size, and what AmpSize leaves out.
- قراءة 3 دقيقةAS/NZS 3000 Tables C1 and C2: demand groupsWhat the demand group letters govern, when to use Table C1 or Table C2, and a commercial assessment that returns 276.26 A total and 92.09 A per phase.
- قراءة 6 دقيقةAS/NZS 3008.1.1 table numbers: 2017 to 2025Each AS/NZS 3008.1.1 table AmpSize reads, with its 2017 number, its 2025 number and whether its values moved, and one submain that cites both sets.
- قراءة 4 دقيقةAS/NZS 3008.1.2 Tables 4 to 21: current ratingsWhat the current rating tables govern, which table AmpSize reads today, and a 40 A circuit that lands on 10 mm² with a derated capacity of 50 A.
- قراءة 4 دقيقةAS/NZS 3008 Table 13 (now 3.18): multicore ratingsWhat AS/NZS 3008 Table 13 gives, why the 2025 AU part calls it Table 3.18, how to read its columns into the calculator, and what moved for buried cable.
- قراءة 3 دقيقةMotor full load current: 11 kW 400 V DOLFull load current, shaft speed, torque and direct on line starting current for an 11 kW four-pole 400 V induction motor, with the figures the tool returns.
- قراءة 3 دقيقةCommercial maximum demand with Table C2A tender-stage demand assessment for a commercial building using AS/NZS 3000 Table C2, with each group demand and the per-phase figure the tool returns.
- قراءة 5 دقيقةAS/NZS 3008.1.1:2025: what changed from 2017The 2025 AU part adds d.c. ratings to 1500 V, renumbers every table and moves some ratings. Four circuits, each run on both editions, show what moves.
- قراءة 4 دقيقةCable size for a 32 A single‑phase 25 m runWork through a 32 A single-phase circuit over 25 metres in New Zealand. See every derating factor, the check that sets the size, and the result the tool gives.
- قراءة 4 دقيقةDomestic maximum demand with Table C1Assess the maximum demand of a New Zealand house from Table C1, group by group, with a worked example that lands on 52.61 A on a single-phase supply.
الحاسبات التي تستخدمها هذه الأدلة
- حاسبة تيار الحمل الكاملاحسب تيار الحمل الكامل من القدرة والجهد والطور.
- حاسبة المحركحدّد تيار الحمل الكامل للمحرك وتيار البدء وعزم الدوران.
- تحديد مقاس المولّد من قائمة الأحمالحدّد مقاس المولّد من قائمة أحمال مع بدء تشغيل المحرك.
- امتلاء حامل الكابلات والسلّمعرض حامل الكابلات أو السلّم، والطبقات، وkg/m، ومعامل التجميع.
- حاسبة تيار المولّدتيار الحمل الكامل وتيار العطل للمولّد من قيمته kVA.
- حاسبة الطلب الأقصىقدّر الطلب الأقصى للأحمال المنزلية وغير المنزلية.
- فحص الدائرة القائمةتحقّق من دائرة مركّبة: الكابل، والجهاز، والهبوط، وZs.
- حاسبة هبوط الجهداحسب هبوط الجهد على مسار الكابل وتحقّق من الحد.
- حاسبة مقاس الكابلاعثر على أصغر مقاس كابل يكون مطابقاً في كل فحص.