SparkQuote NEC calculators
NEC 2023 electrical calculators: wire size, ampacity, voltage drop, conduit fill, box fill, load.
사용해야 할까요
품질 및 안전성
A
발견 사항 (1)
- LOWTool 'voltage_drop' description lacks action verbvoltage_drop에서
도구 정의와 프로토콜 준수에 대한 자동 분석을 기반으로 합니다.
컨텍스트 비용
~4,994토큰 (도구 정의)
~4.0 KB일반적인 응답 크기
상당한 주의 영향 (128k 컨텍스트의 3.90%)
이는 서버의 도구가 모델의 컨텍스트에 로드될 때마다 소비되는 대략적인 토큰 수입니다. 수치가 높을수록 다른 작업에 사용할 수 있는 주의가 줄어듭니다.
설치
원클릭 설치
`claude_desktop_config.json` 파일에 다음을 추가하세요:
{
"mcpServers": {
"nec-calculators": {
"url": "https://sparkquote.ai/mcp"
}
}
}원격 엔드포인트
https://sparkquote.ai/mcpstreamable-http할 수 있는 일
도구 목록
도구 (10)
🟢 읽기 전용🟡 쓰기🔴 삭제⚪ 알 수 없음
🟢wire_size(material, temp, amps, volts, phase, ...)
Minimum conductor size for a circuit: NEC Table 310.16 ampacity at the termination temperature rating, the 240.4(D) small-conductor limits, voltage drop over the run, and the Table 250.122 equipment grounding conductor, increased in proportion under 250.122(B) when voltage drop upsizes the conductors.
입력 스키마
{
"type": "object",
"properties": {
"material": {
"type": "string",
"enum": [
"cu",
"al"
],
"default": "cu",
"description": "Conductor. \"cu\" = Copper; \"al\" = Aluminum."
},
"temp": {
"type": "string",
"enum": [
"60",
"75",
"90"
],
"default": "75",
"description": "Termination rating. \"60\" = 60°C (NM-B, UF); \"75\" = 75°C (THHN in conduit); \"90\" = 90°C."
},
"amps": {
"type": "number",
"minimum": 1,
"default": 60,
"description": "Breaker / load (A)."
},
"volts": {
"type": "string",
"enum": [
"120",
"208",
"240",
"277",
"480"
],
"default": "240",
"description": "Voltage. \"120\" = 120 V; \"208\" = 208 V; \"240\" = 240 V; \"277\" = 277 V; \"480\" = 480 V."
},
"phase": {
"type": "string",
"enum": [
"1",
"3"
],
"default": "1",
"description": "Phase. \"1\" = Single-phase; \"3\" = Three-phase."
},
"feet": {
"type": "number",
"minimum": 1,
"default": 150,
"description": "One-way distance (ft)."
},
"limit": {
"type": "number",
"minimum": 0.5,
"default": 3,
"description": "Max voltage drop (%)."
}
},
"required": [
"material",
"temp",
"amps",
"volts",
"phase",
"feet",
"limit"
],
"additionalProperties": false
}출력 스키마
{
"type": "object",
"properties": {
"ok": {
"type": "boolean"
},
"summary": {
"type": "string"
},
"rows": {
"type": "array",
"items": {
"type": "array",
"items": {
"type": "string"
},
"minItems": 2,
"maxItems": 2
}
},
"table": {
"type": "object",
"properties": {
"head": {
"type": "array",
"items": {
"type": "string"
}
},
"body": {
"type": "array",
"items": {
"type": "array",
"items": {
"type": "string"
}
}
}
}
},
"inputs": {
"type": "object",
"additionalProperties": {
"type": "string"
}
},
"code": {
"type": "string"
},
"url": {
"type": "string"
}
},
"required": [
"ok",
"summary",
"rows",
"inputs",
"code",
"url"
]
}🟢voltage_drop(material, awg, amps, volts, phase, ...)
Voltage drop for a given conductor size, current and one-way length, single- or three-phase, from NEC Chapter 9 Table 8 circular mils (VD = 2·K·I·L / CM, or √3 for three-phase).
입력 스키마
{
"type": "object",
"properties": {
"material": {
"type": "string",
"enum": [
"cu",
"al"
],
"default": "cu",
"description": "Conductor. \"cu\" = Copper; \"al\" = Aluminum."
},
"awg": {
"type": "string",
"enum": [
"14",
"12",
"10",
"8",
"6",
"4",
"3",
"2",
"1",
"1/0",
"2/0",
"3/0",
"4/0",
"250",
"300",
"350",
"400",
"500"
],
"default": "6",
"description": "Size. \"14\" = 14 AWG; \"12\" = 12 AWG; \"10\" = 10 AWG; \"8\" = 8 AWG; \"6\" = 6 AWG; \"4\" = 4 AWG; \"3\" = 3 AWG; \"2\" = 2 AWG; \"1\" = 1 AWG; \"1/0\" = 1/0 AWG; \"2/0\" = 2/0 AWG; \"3/0\" = 3/0 AWG; \"4/0\" = 4/0 AWG; \"250\" = 250 kcmil; \"300\" = 300 kcmil; \"350\" = 350 kcmil; \"400\" = 400 kcmil; \"500\" = 500 kcmil."
},
"amps": {
"type": "number",
"minimum": 0.1,
"default": 48,
"description": "Load current (A)."
},
"volts": {
"type": "string",
"enum": [
"120",
"208",
"240",
"277",
"480"
],
"default": "240",
"description": "Voltage. \"120\" = 120 V; \"208\" = 208 V; \"240\" = 240 V; \"277\" = 277 V; \"480\" = 480 V."
},
"phase": {
"type": "string",
"enum": [
"1",
"3"
],
"default": "1",
"description": "Phase. \"1\" = Single-phase; \"3\" = Three-phase."
},
"feet": {
"type": "number",
"minimum": 1,
"default": 110,
"description": "One-way distance (ft)."
}
},
"required": [
"material",
"awg",
"amps",
"volts",
"phase",
"feet"
],
"additionalProperties": false
}출력 스키마
{
"type": "object",
"properties": {
"ok": {
"type": "boolean"
},
"summary": {
"type": "string"
},
"rows": {
"type": "array",
"items": {
"type": "array",
"items": {
"type": "string"
},
"minItems": 2,
"maxItems": 2
}
},
"table": {
"type": "object",
"properties": {
"head": {
"type": "array",
"items": {
"type": "string"
}
},
"body": {
"type": "array",
"items": {
"type": "array",
"items": {
"type": "string"
}
}
}
}
},
"inputs": {
"type": "object",
"additionalProperties": {
"type": "string"
}
},
"code": {
"type": "string"
},
"url": {
"type": "string"
}
},
"required": [
"ok",
"summary",
"rows",
"inputs",
"code",
"url"
]
}🟢watts_to_amps(watts, volts, phase, pf)
Current drawn by a load in watts at a voltage and power factor, single- or three-phase, plus the 125% continuous-load value.
입력 스키마
{
"type": "object",
"properties": {
"watts": {
"type": "number",
"minimum": 1,
"default": 5000,
"description": "Power (W)."
},
"volts": {
"type": "string",
"enum": [
"120",
"208",
"240",
"277",
"480"
],
"default": "240",
"description": "Voltage. \"120\" = 120 V; \"208\" = 208 V; \"240\" = 240 V; \"277\" = 277 V; \"480\" = 480 V."
},
"phase": {
"type": "string",
"enum": [
"1",
"3"
],
"default": "1",
"description": "Phase. \"1\" = Single-phase; \"3\" = Three-phase."
},
"pf": {
"type": "number",
"minimum": 0.1,
"default": 1,
"description": "Power factor."
}
},
"required": [
"watts",
"volts",
"phase",
"pf"
],
"additionalProperties": false
}출력 스키마
{
"type": "object",
"properties": {
"ok": {
"type": "boolean"
},
"summary": {
"type": "string"
},
"rows": {
"type": "array",
"items": {
"type": "array",
"items": {
"type": "string"
},
"minItems": 2,
"maxItems": 2
}
},
"table": {
"type": "object",
"properties": {
"head": {
"type": "array",
"items": {
"type": "string"
}
},
"body": {
"type": "array",
"items": {
"type": "array",
"items": {
"type": "string"
}
}
}
}
},
"inputs": {
"type": "object",
"additionalProperties": {
"type": "string"
}
},
"code": {
"type": "string"
},
"url": {
"type": "string"
}
},
"required": [
"ok",
"summary",
"rows",
"inputs",
"code",
"url"
]
}🟢conduit_fill(type, size, awg, count)
Percent fill and maximum number of THHN/THWN-2 conductors of one size in EMT or PVC Schedule 40, from NEC Chapter 9 Tables 1, 4 and 5.
입력 스키마
{
"type": "object",
"properties": {
"type": {
"type": "string",
"enum": [
"EMT",
"PVC-40"
],
"default": "EMT",
"description": "Conduit type. \"EMT\" = EMT; \"PVC-40\" = PVC Schedule 40."
},
"size": {
"type": "string",
"enum": [
"1",
"2",
"3",
"4",
"1/2",
"3/4",
"1-1/4",
"1-1/2",
"2-1/2",
"3-1/2"
],
"default": "3/4",
"description": "Trade size. \"1\" = 1\"; \"2\" = 2\"; \"3\" = 3\"; \"4\" = 4\"; \"1/2\" = 1/2\"; \"3/4\" = 3/4\"; \"1-1/4\" = 1-1/4\"; \"1-1/2\" = 1-1/2\"; \"2-1/2\" = 2-1/2\"; \"3-1/2\" = 3-1/2\"."
},
"awg": {
"type": "string",
"enum": [
"1",
"2",
"3",
"4",
"6",
"8",
"10",
"12",
"14",
"1/0",
"2/0",
"3/0",
"4/0"
],
"default": "12",
"description": "THHN/THWN-2 size. \"1\" = 1 AWG; \"2\" = 2 AWG; \"3\" = 3 AWG; \"4\" = 4 AWG; \"6\" = 6 AWG; \"8\" = 8 AWG; \"10\" = 10 AWG; \"12\" = 12 AWG; \"14\" = 14 AWG; \"1/0\" = 1/0 AWG; \"2/0\" = 2/0 AWG; \"3/0\" = 3/0 AWG; \"4/0\" = 4/0 AWG."
},
"count": {
"type": "number",
"minimum": 1,
"default": 10,
"description": "Number of conductors."
}
},
"required": [
"type",
"size",
"awg",
"count"
],
"additionalProperties": false
}출력 스키마
{
"type": "object",
"properties": {
"ok": {
"type": "boolean"
},
"summary": {
"type": "string"
},
"rows": {
"type": "array",
"items": {
"type": "array",
"items": {
"type": "string"
},
"minItems": 2,
"maxItems": 2
}
},
"table": {
"type": "object",
"properties": {
"head": {
"type": "array",
"items": {
"type": "string"
}
},
"body": {
"type": "array",
"items": {
"type": "array",
"items": {
"type": "string"
}
}
}
}
},
"inputs": {
"type": "object",
"additionalProperties": {
"type": "string"
}
},
"code": {
"type": "string"
},
"url": {
"type": "string"
}
},
"required": [
"ok",
"summary",
"rows",
"inputs",
"code",
"url"
]
}🟢box_fill(awg, conductors, devices, clamps, grounds)
Minimum outlet box volume from NEC 314.16(B): conductor, device (2 each), clamp and grounding allowances times the Table 314.16(B) volume for the largest conductor.
입력 스키마
{
"type": "object",
"properties": {
"awg": {
"type": "string",
"enum": [
"6",
"8",
"10",
"12",
"14",
"16",
"18"
],
"default": "12",
"description": "Largest conductor. \"6\" = 6 AWG; \"8\" = 8 AWG; \"10\" = 10 AWG; \"12\" = 12 AWG; \"14\" = 14 AWG; \"16\" = 16 AWG; \"18\" = 18 AWG."
},
"conductors": {
"type": "number",
"minimum": 0,
"default": 5,
"description": "Insulated conductors (not counting grounds)."
},
"devices": {
"type": "number",
"minimum": 0,
"default": 1,
"description": "Devices (switches, receptacles)."
},
"clamps": {
"type": "string",
"enum": [
"0",
"1"
],
"default": "1",
"description": "Internal cable clamps. \"0\" = None; \"1\" = One or more."
},
"grounds": {
"type": "string",
"enum": [
"0",
"1"
],
"default": "1",
"description": "Equipment grounding conductors. \"0\" = None; \"1\" = One or more."
}
},
"required": [
"awg",
"conductors",
"devices",
"clamps",
"grounds"
],
"additionalProperties": false
}출력 스키마
{
"type": "object",
"properties": {
"ok": {
"type": "boolean"
},
"summary": {
"type": "string"
},
"rows": {
"type": "array",
"items": {
"type": "array",
"items": {
"type": "string"
},
"minItems": 2,
"maxItems": 2
}
},
"table": {
"type": "object",
"properties": {
"head": {
"type": "array",
"items": {
"type": "string"
}
},
"body": {
"type": "array",
"items": {
"type": "array",
"items": {
"type": "string"
}
}
}
}
},
"inputs": {
"type": "object",
"additionalProperties": {
"type": "string"
}
},
"code": {
"type": "string"
},
"url": {
"type": "string"
}
},
"required": [
"ok",
"summary",
"rows",
"inputs",
"code",
"url"
]
}🟢load_calculator(sqft, small, laundry, range, dryer, ...)
Dwelling service load by the NEC 220.82 optional method: 3 VA/ft² lighting, small-appliance and laundry circuits, fixed appliances, demand factor, heating or cooling, and the minimum standard service size. Leave an appliance out to count it as 0 VA.
입력 스키마
{
"type": "object",
"properties": {
"sqft": {
"type": "number",
"minimum": 1,
"default": 2400,
"description": "Living area (ft²)."
},
"small": {
"type": "number",
"minimum": 2,
"default": 2,
"description": "Small-appliance circuits."
},
"laundry": {
"type": "string",
"enum": [
"1",
"0"
],
"default": "1",
"description": "Laundry circuit. \"1\" = Yes (1,500 VA); \"0\" = No."
},
"range": {
"type": "number",
"minimum": 0,
"default": 12000,
"description": "Range / cooktop (VA). Optional."
},
"dryer": {
"type": "number",
"minimum": 0,
"default": 5000,
"description": "Dryer (VA). Optional."
},
"heater": {
"type": "number",
"minimum": 0,
"default": 4500,
"description": "Water heater (VA). Optional."
},
"dishwasher": {
"type": "number",
"minimum": 0,
"default": 1200,
"description": "Dishwasher (VA). Optional."
},
"disposal": {
"type": "number",
"minimum": 0,
"default": 800,
"description": "Disposal (VA). Optional."
},
"ev": {
"type": "number",
"minimum": 0,
"default": 0,
"description": "EV charger (VA). Optional."
},
"other": {
"type": "number",
"minimum": 0,
"default": 0,
"description": "Other fixed appliances (VA). Optional."
},
"hvac": {
"type": "number",
"minimum": 0,
"default": 5000,
"description": "Largest of heating or cooling (VA). Optional."
}
},
"required": [
"sqft",
"small",
"laundry"
],
"additionalProperties": false
}출력 스키마
{
"type": "object",
"properties": {
"ok": {
"type": "boolean"
},
"summary": {
"type": "string"
},
"rows": {
"type": "array",
"items": {
"type": "array",
"items": {
"type": "string"
},
"minItems": 2,
"maxItems": 2
}
},
"table": {
"type": "object",
"properties": {
"head": {
"type": "array",
"items": {
"type": "string"
}
},
"body": {
"type": "array",
"items": {
"type": "array",
"items": {
"type": "string"
}
}
}
}
},
"inputs": {
"type": "object",
"additionalProperties": {
"type": "string"
}
},
"code": {
"type": "string"
},
"url": {
"type": "string"
}
},
"required": [
"ok",
"summary",
"rows",
"inputs",
"code",
"url"
]
}🟢ohms_law(v, i, r, p)
Ohm's law and power: give exactly two of voltage, current, resistance and power; the other two are calculated.
입력 스키마
{
"type": "object",
"properties": {
"v": {
"type": "number",
"minimum": 0,
"default": 120,
"description": "Voltage (V). Optional."
},
"i": {
"type": "number",
"minimum": 0,
"description": "Current (A). Optional."
},
"r": {
"type": "number",
"minimum": 0,
"default": 24,
"description": "Resistance (Ω). Optional."
},
"p": {
"type": "number",
"minimum": 0,
"description": "Power (W). Optional."
}
},
"required": [],
"additionalProperties": false
}출력 스키마
{
"type": "object",
"properties": {
"ok": {
"type": "boolean"
},
"summary": {
"type": "string"
},
"rows": {
"type": "array",
"items": {
"type": "array",
"items": {
"type": "string"
},
"minItems": 2,
"maxItems": 2
}
},
"table": {
"type": "object",
"properties": {
"head": {
"type": "array",
"items": {
"type": "string"
}
},
"body": {
"type": "array",
"items": {
"type": "array",
"items": {
"type": "string"
}
}
}
}
},
"inputs": {
"type": "object",
"additionalProperties": {
"type": "string"
}
},
"code": {
"type": "string"
},
"url": {
"type": "string"
}
},
"required": [
"ok",
"summary",
"rows",
"inputs",
"code",
"url"
]
}🟢panel_schedule(system, spaces, circuits)
Lays circuits out on a 120/240 V single-phase or 208Y/120 V three-phase panel and totals the load per phase with the imbalance.
입력 스키마
{
"type": "object",
"properties": {
"system": {
"type": "string",
"enum": [
"1",
"3"
],
"default": "1",
"description": "Panel. \"1\" = 120/240 V single-phase; \"3\" = 208Y/120 V three-phase."
},
"spaces": {
"type": "string",
"enum": [
"12",
"20",
"24",
"30",
"42"
],
"default": "30",
"description": "Spaces. \"12\" = 12; \"20\" = 20; \"24\" = 24; \"30\" = 30; \"42\" = 42."
},
"circuits": {
"type": "string",
"default": "Kitchen receptacles, 20, 1, 1500\nKitchen receptacles, 20, 1, 1500\nMicrowave, 20, 1, 1500\nDishwasher, 15, 1, 1200\nRange, 50, 2, 12000\nDryer, 30, 2, 5000\nWater heater, 30, 2, 4500\nLighting, 15, 1, 1200",
"description": "Circuits: description, breaker A, poles, VA (one per line)"
}
},
"required": [
"system",
"spaces",
"circuits"
],
"additionalProperties": false
}출력 스키마
{
"type": "object",
"properties": {
"ok": {
"type": "boolean"
},
"summary": {
"type": "string"
},
"rows": {
"type": "array",
"items": {
"type": "array",
"items": {
"type": "string"
},
"minItems": 2,
"maxItems": 2
}
},
"table": {
"type": "object",
"properties": {
"head": {
"type": "array",
"items": {
"type": "string"
}
},
"body": {
"type": "array",
"items": {
"type": "array",
"items": {
"type": "string"
}
}
}
}
},
"inputs": {
"type": "object",
"additionalProperties": {
"type": "string"
}
},
"code": {
"type": "string"
},
"url": {
"type": "string"
}
},
"required": [
"ok",
"summary",
"rows",
"inputs",
"code",
"url"
]
}🟢bid_calculator(materials, markup, hours, rate, direct, ...)
Electrical bid price from materials, markup, labor hours and rate, job costs, overhead and a target net margin (price = break-even / (1 − margin)).
입력 스키마
{
"type": "object",
"properties": {
"materials": {
"type": "number",
"minimum": 0,
"default": 1850,
"description": "Material cost ($)."
},
"markup": {
"type": "number",
"minimum": 0,
"default": 0,
"description": "Material markup (%). Optional."
},
"hours": {
"type": "number",
"minimum": 0,
"default": 40,
"description": "Labor hours (h)."
},
"rate": {
"type": "number",
"minimum": 0,
"default": 55,
"description": "Burdened labor cost ($/h)."
},
"direct": {
"type": "number",
"minimum": 0,
"default": 250,
"description": "Permits and other job costs ($). Optional."
},
"overhead": {
"type": "number",
"minimum": 0,
"default": 20,
"description": "Overhead (% of direct cost) (%)."
},
"margin": {
"type": "number",
"minimum": 0,
"default": 15,
"description": "Target net margin (%)."
}
},
"required": [
"materials",
"hours",
"rate",
"overhead",
"margin"
],
"additionalProperties": false
}출력 스키마
{
"type": "object",
"properties": {
"ok": {
"type": "boolean"
},
"summary": {
"type": "string"
},
"rows": {
"type": "array",
"items": {
"type": "array",
"items": {
"type": "string"
},
"minItems": 2,
"maxItems": 2
}
},
"table": {
"type": "object",
"properties": {
"head": {
"type": "array",
"items": {
"type": "string"
}
},
"body": {
"type": "array",
"items": {
"type": "array",
"items": {
"type": "string"
}
}
}
}
},
"inputs": {
"type": "object",
"additionalProperties": {
"type": "string"
}
},
"code": {
"type": "string"
},
"url": {
"type": "string"
}
},
"required": [
"ok",
"summary",
"rows",
"inputs",
"code",
"url"
]
}🟢nec_ampacity(material, temp, size)
Allowable ampacity of one insulated conductor from NEC Table 310.16 (not more than three current-carrying conductors in a raceway or cable, 30°C ambient), before any adjustment or correction factors and before the 240.4(D) small-conductor limits.
입력 스키마
{
"type": "object",
"properties": {
"material": {
"type": "string",
"enum": [
"cu",
"al"
],
"description": "\"cu\" = copper; \"al\" = aluminum."
},
"temp": {
"type": "string",
"enum": [
"60",
"75",
"90"
],
"description": "Temperature column in °C: 60 (NM-B, UF), 75 (THWN, most terminations), 90 (THHN, for derating)."
},
"size": {
"type": "string",
"enum": [
"14",
"12",
"10",
"8",
"6",
"4",
"3",
"2",
"1",
"1/0",
"2/0",
"3/0",
"4/0",
"250",
"300",
"350",
"400",
"500"
],
"description": "Conductor size: AWG (\"14\" … \"4/0\") or kcmil (\"250\" … \"500\")."
}
},
"required": [
"material",
"temp",
"size"
],
"additionalProperties": false
}출력 스키마
{
"type": "object",
"properties": {
"ok": {
"type": "boolean"
},
"summary": {
"type": "string"
},
"rows": {
"type": "array",
"items": {
"type": "array",
"items": {
"type": "string"
},
"minItems": 2,
"maxItems": 2
}
},
"table": {
"type": "object",
"properties": {
"head": {
"type": "array",
"items": {
"type": "string"
}
},
"body": {
"type": "array",
"items": {
"type": "array",
"items": {
"type": "string"
}
}
}
}
},
"inputs": {
"type": "object",
"additionalProperties": {
"type": "string"
}
},
"code": {
"type": "string"
},
"url": {
"type": "string"
}
},
"required": [
"ok",
"summary",
"rows",
"inputs",
"code",
"url"
]
}커뮤니티
증거
최근 관측
검증됨버전이 기록되지 않음도구 10개