PA/GA horn loudspeaker
Hazardous-area public address and general alarm horn loudspeaker. Ex d compression-driver housing with bolted flamepath flange, rear gland and stopping plug, rating plate and tap selector. style re-entrant gives a hollow round bell with a central phase reflector on vanes; flare gives a hollow rectangular exponential horn. Carried in a U-yoke with tilt knobs on a pan turntable and arm, on a stanchion or wall plate with field cable and tag bracket.
Installation
Copies safety/pa-loudspeaker.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 { PaLoudspeaker } from './components/deck-twin/safety/pa-loudspeaker'
export default function Scene() {
return (
<Canvas shadows camera={{ position: [8, 5, 9], fov: 35 }}>
<Stage>
<PaLoudspeaker />
</Stage>
<OrbitControls makeDefault />
</Canvas>
)
}
Props
| Prop | Type | Default | Range |
|---|---|---|---|
style | "re-entrant" | "flare" | null | |
mount | "pole" | "wall" | null | |
height | number (m) | null | 1 – 8 |
tilt | number (°) | null | -30 – 60 |
pan | number (°) | null | -90 – 90 |
power | number (W) | null | 1 – 25 |
tag | string | null | |
...group | position, rotation, scale… |
P&ID
IEC loudspeaker: a small rectangle with a flared trumpet (trapezoid) opening from it, drawn at each speaker position on the PA/GA layout with its power tap (e.g. 15 W) and aiming direction.
An alarm sounder is drawn as a bell or horn; a combined beacon and sounder is alarm-beacon. PA loudspeakers carry a wattage note.
stylemountheighttiltpanpowertagTypical suppliers
Industronic · Zenitel. 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/pa-loudspeaker.json, or copy a ready-made instruction:
Add the Deck Twin "PA/GA horn loudspeaker" component to this project. Run `npx -y https://decktwin.com/cli/deck-twin-0.2.2.tgz add pa-loudspeaker` (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 pa-loudspeaker` for its props, ranges and ports. Render <PaLoudspeaker /> 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