Cuadro de cargas

Demanda NEC 220 · unilineal · plancha

OFFLINE READY NEC 2020 / FBC 2023 v4.0
Carga conectada · Connected
34,081 VA
18 circuitos · panel 200 A
Demanda calculada · 220.40
27,151 VA
27.15 kVA — Método estándar
Corriente @ 240 V
113.1 A
Libre: 86.9 A
Veredicto · Verdict
56.6 %
MAIN BREAKER ADEQUATE
0 A80% (referencia continua)200 A

Datos del proyectoSe guarda automáticamente en este equipo

Cuadro de cargas — circuitosGFCI/AFCI automático 210.8(A) / 210.12(A) · habitación # y equipo #

PosIdentificaciónTipoLocalHab. #VAVPTripWireGFCIAFCI
1—12013#12 AWGGFCIAFCI
2—24023#8 AWG——
312013#12 AWG—AFCI
5—12013#12 AWGGFCIAFCI
624023#12 AWG——
7—12013#12 AWGGFCIAFCI
912013#12 AWGGFCI—
10—12013#12 AWGGFCIAFCI
1112013#14 AWG—AFCI
1212013#14 AWG—AFCI
1212013#14 AWG—AFCI
1312013#12 AWGGFCI—
14—24023#10 AWGGFCI—
1512013#14 AWG—AFCI
17—12013#12 AWGGFCI—
17—2402———
18—2402———
19—24023#12 AWG——

Verificación de capacidad del panelNEC 220.40 / 215.2(A) / 230.42 / 240.4(B) next-size-up

ADECUADO — El principal de 200 A tiene capacidad suficiente: demanda calculada 113.1 A (56.6%), margen 86.9 A. Conductores de servicio 3-#2/0 AWG THWN (Cu) = 175 A @ 75°C — OK. OCPD por 240.4(B) / 230.90(A) Exc. 1 (next-size-up; gobierna la carga calculada).
Regla 120% (NEC 705.12(B)): PV back-fed 50 A: main 200 A + 50 A = 250 A vs 120% of 200 A bus = 240 A — EXCEEDS: supply-side connection (705.11), panel upgrade or lower PV breaker required
PV back-fed 50 A: main 200 A + 50 A = 250 A vs 120% of 200 A bus = 240 A — EXCEEDS: supply-side connection (705.11), panel upgrade or lower PV breaker required
Método Opcional NEC 220.83(A) (comparación):
Carga general + aparatos fijos: 17,201 VA → primeros 10 kVA al 100% + resto al 40% = 12,880 VA; sumando secadora 5,000 + cocción 8,000 + HVAC 2,280 VA → 28,160 VA = 117.3 A (58.7%) — ADECUADO.

Unilineal y documento finalPlancha ARCH B 18×12 — réplica del formato ddD (unilineal + cuadro + cálculo + notas)

3-#2/0 AWG THWN (Cu) + GND #4 THWN (Cu), CuTO PANELPANEL A, 200A-2P BREAKER,EXISTING CONDUCTOR1FRIDGE20A-1P-120 V50A-2P-240 V2RANGE3BD-1 OUTLETS20A-1P-120 V45KIT OUTLETS20A-1P-120 V50A-2P-240 V6WATER HEATER7KIT OUTLETS20A-1P-120 V89BATH-1 OUTLETS20A-1P-120 V20A-1P-120 V10WASHER11HALL LIGHTS15A-1P-120 V15A-1P-120 V12BD-2 OUTLETS13BATH-2 OUTLETS20A-1P-120 V30A-2P-240 V14DRYER15LR LIGHTS15A-1P-120 V1617SPD30A-2P-240 V50A-2P-240 V18PV SOLAR19MINI-SPLIT20A-2P-240 V20PANEL SINGLE LINE DIAGRAM

Generado desde el cuadro de cargas — posiciones, polos y protecciones automáticas.

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DEMAND LOAD CALCULATION - STANDARD METHOD (NEC 220, PART III)
PROJECT 26036 - CINDY BROWN GARAGE CONVERSION - 1873 NE 154 ST, NORTH MIAMI BEACH, FL
AREA: 1,013.58 SQ.FT. / SYSTEM: 120/240V, 1-PHASE, 3-WIRE
PANEL A: SQUARE D 200 A M.L.O. LOAD CENTER, BUS RATING 200 A, AIC 10 KA / DATA: PROJECT 
========================================================================================
LOAD TYPE                      | CALCULATION                                | LOAD (VA)
----------------------------------------------------------------------------------------
1. GENERAL LIGHTING (11, 12    | 600 + 800 + 800 VA (NEC 220.12 /           | 2,200
BD-2, 15)                      | 220.14(A): ACTUAL CIRCUIT VA GOVERNS OVER
                               | THE 3 VA/SQ.FT. METHOD)
2. GENERAL-USE RECEPTACLES (3  | 800 + 600 + 800 + 800 VA (NEC              | 3,000
BD-1, 9 BATH-1, 12 BD-2, 13    | 220.14(I)-(J): GENERAL-USE RECEPTACLES)
BATH-2)
3. SMALL APPLIANCE CIRCUITS    | 1,500 + 1,500 VA (NEC 210.11(C)(1) /       | 3,000
(2) (5, 7)                     | 220.52(A))
4. LAUNDRY CIRCUIT (1) (10)    | 1,500 VA (NEC 210.11(C)(3) / 220.52(B))    | 1,500
5. OUTDOOR RECEPTACLES (17)    | 1,500 VA (NEC 210.52(E): OUTDOOR           | 1,500
                               | RECEPTACLES, GFCI)
----------------------------------------------------------------------------------------
SUBTOTAL (GENERAL LOAD)        | 600 + 800 + 800 + 800 + 600 + 800 + 800 +  | 11,200
                               | 1,500 + 1,500 + 1,500 + 1,500 VA
APPLY DEMAND FACTOR (NEC TABLE
220.42 - DWELLING UNIT):
- FIRST 3,000 VA @ 100%        | 3,000 VA X 1.00                            | 3,000
- REMAINDER (8,200 VA) @ 35%   | 8,200 VA X 0.35                            | 2,870
----------------------------------------------------------------------------------------
TOTAL GENERAL LOAD AFTER       |                                            | 5,870
DEMAND
----------------------------------------------------------------------------------------
FIXED APPLIANCES (NEC 220.53)
- DRYER EXCLUDED PER 220.53
(HAS OWN SECTION, 220.54):
- FRIDGE (POS. 1. 1,500 VA)    |                                            | 1,500
- WATER HEATER (POS. 6. 4,500  |                                            | 4,500
VA)
- SPD (POS. 17. 1 VA)          |                                            | 1
----------------------------------------------------------------------------------------
SUBTOTAL FIXED APPLIANCES      | 3 APPLIANCES (FEWER THAN 4): NO 75% FACTOR | 6,001
                               | (220.53)
----------------------------------------------------------------------------------------
ELECTRIC CLOTHES DRYER (NEC
220.54 / TABLE 220.54) (POS.
14):
- GREATER OF 5,000 VA OR       |                                            | 5,000
NAMEPLATE - SINGLE DRYER =
100% DEMAND FACTOR
----------------------------------------------------------------------------------------
SUBTOTAL ELECTRIC DRYER        |                                            | 5,000
----------------------------------------------------------------------------------------
ELECTRIC RANGE (NEC TABLE
220.55, COLUMN C) (POS. 2,
2P-50A):
- NAMEPLATE 9,600 VA, NOT OVER |                                            | 8,000
12 KW: COLUMN C FIXED DEMAND =
8,000 VA (CODE VALUE)
----------------------------------------------------------------------------------------
SUBTOTAL COOKING               |                                            | 8,000
----------------------------------------------------------------------------------------
HVAC - MINI-SPLIT (POS. 19).
(NEC 220.50 / 220.60 / ART.
440):
- SINGLE UNIT: LARGER OF THE   | 2,280 VA                                   | 2,280
NONCOINCIDENT HEATING /
COOLING LOADS (220.60) - 100%
----------------------------------------------------------------------------------------
PV SOLAR (POS. 18): BACK-FED
SOURCE, 2P-50A - CONTRIBUTES
NO LOAD (SEE NOTE 4)
========================================================================================
TOTAL CALCULATED DEMAND LOAD   |                                            | 27,151
(NEC 220.40): 5,870 + 6,001 +
0 + 5,000 + 8,000 + 2,280 + 0
VA
CALCULATED DEMAND CURRENT @    | 27,151 VA / 240 V                          | 113.1 A
240 V
LOADING OF 200 A MAIN BREAKER  | 113.1 A / 200 A                            | 56.6%
SPARE CAPACITY ON 200 A MAIN   | 200 A - 113.1 A                            | 86.9 A
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VERDICT: THE EXISTING 200 A
MAIN BREAKER IS ADEQUATE -
CALCULATED DEMAND 113.1 A <
200 A (NEC 220.40 / 215.2(A) /
230.42; SERVICE CONDUCTORS
3-#2/0 AWG THWN (CU), 175 A @
75 C - OK)
========================================================================================
OPTIONAL METHOD (NEC
220.83(A)) - COMPARISON:
- GENERAL LOAD (LIGHTING +     | 17,201 VA                                  | 17,201
RECEPTACLES + SA + LAUNDRY +
FIXED APPLIANCES)
- FIRST 10,000 VA @ 100% +     | 10,000 + 2,880 VA                          | 12,880
REMAINDER @ 40%
- ADD: DRYER 5,000 + COOKING   |                                            | 15,280
8,000 + HVAC 2,280 VA
TOTAL OPTIONAL METHOD DEMAND   |                                            | 28,160
CALCULATED CURRENT / LOADING   | 28160 VA / 240 V                           | 117.3 A
OF 200 A MAIN                  |                                            | (58.7%)
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