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Kebo ya DC na kushuka kwa volti

Weka mkondo na urefu wa waya wa kwenda tu. Hesabu ni ya kushuka kwa volteji; uwezo wa waya na kinga vikaguliwe kando.

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Matokeo yaliyosasishwa

Kiwango cha chini · Eneo · Kushuka kwa volti

3.93 mm²

Eneo

4 mm²

Voltage-drop criterion only

Kushuka kwa volti

1.31 %

2.62 V · 39.3 W Upotevu

Matokeo yanasaidia kupanga. Kagua makadirio yaliyotumika kabla ya kuchagua vifaa.

Mahali na bei ya umeme havipatikani kiotomatiki. Hesabu hutumia thamani ulizoingiza.

Jinsi ya kutumia kikokotoo

Weka mkondo na urefu wa waya wa kwenda tu. Hesabu ni ya kushuka kwa volteji; uwezo wa waya na kinga vikaguliwe kando.

Njia ya kukokotoa

DC loop resistance = 2 × one-way length × resistivity ÷ area. Voltage drop = current × resistance. Required area = 2 × length × current × resistivity ÷ allowed voltage drop. Copper ρ20 = 0.0175 and aluminium ρ20 = 0.0282 Ω·mm²/m; temperature coefficients are 0.00393 and 0.00403 /°C.

Mbinu →

Kabla ya kutumia matokeo

Voltage-drop sizing only: this does NOT check ampacity, insulation voltage, conduit fill, bundling, ambient derating, protective devices, connectors or local electrical rules. Final cable selection must satisfy those checks. Do not use this DC model for three-phase AC.

Is the suggested mm² safe for the current?

Not necessarily. It only meets the entered voltage-drop target. An installer must separately verify ampacity and installation requirements.

Endelea kupanga

Vikokotoo vyote →

Eneo la paa

Weka idadi na vipimo vya paneli. Acha nafasi kati ya paneli na njia ya kufikia vifaa kwa matengenezo.

Mwinuko na mwelekeo

Weka latitudo na msimu unaoupa kipaumbele. Pembe ni mwongozo wa kuanzia; kivuli na paa pia huathiri uchaguzi.

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