Smoke detector

Optical (photoelectric) smoke detector for enclosed rooms (LER, CCR, accommodation): white head with smoke entry vents on a mounting base and steel conduit back box, remote indicator LED, conduit and stopping plug. Origin on the ceiling; drop > 0 hangs it under steel on a beam clamp and rod.

Installation

Copies safety/smoke-detector.tsx and the shared lib/ into src/components/deck-twin/. Needs three, @react-three/fiber and @react-three/drei. See installation for the manual route.

Usage

import { Canvas } from '@react-three/fiber'
import { OrbitControls } from '@react-three/drei'
import { Stage } from './components/deck-twin/lib/stage'
import { SmokeDetector } from './components/deck-twin/safety/smoke-detector'

export default function Scene() {
  return (
    <Canvas shadows camera={{ position: [8, 5, 9], fov: 35 }}>
      <Stage>
        <SmokeDetector />
      </Stage>
      <OrbitControls makeDefault />
    </Canvas>
  )
}

Props

P&ID

Circle (or square) with S or SD on the ceiling plan of enclosed rooms: LER, CCR, accommodation and HVAC ducts (duct detectors marked D).

tag SDF&G layout convention (NFPA 170 / ISO 7240-style plan symbols; legends vary by company)

Same family as the heat detector: read the letter. BS-style legends draw a smoke detector as a circle with S; NFPA-style may use a square or SD in a circle.

Smoke detector datasheet (EN 54-7) fields and the props they set

Drop rod lengthdrop

Remote indicator LEDalarm

Tag numbertag

Typical suppliers

Autronica · Apollo · Hochiki. The geometry is generic and sized from public standards. It is not vendor CAD.

For agents

Machine-readable entry with props, ranges, defaults and ports:

Or fetch /r/smoke-detector.json, or copy a ready-made instruction:

Add the Deck Twin "Smoke detector" component to this project. Run `npx -y https://decktwin.com/cli/deck-twin-0.2.2.tgz add smoke-detector` (it copies the file and the shared lib into src/components/deck-twin/), then `npx -y https://decktwin.com/cli/deck-twin-0.2.2.tgz info smoke-detector` for its props, ranges and ports. Render <SmokeDetector /> inside a React Three Fiber <Canvas shadows>, wrapped in <Stage> from src/components/deck-twin/lib/stage. Set props from my data (metres, NPS in inches, ASME class) and leave the rest at defaults. Install three, @react-three/fiber, @react-three/drei and @types/three if they're missing. Full guide: https://decktwin.com/skill/SKILL.md