grabowski
6c1b1e7bbd
- docs/facility-layout.drawio: zoned floor concept (production, galvanics, utilities, logistics, support) with material and stamper flow arrows - PNG and PDF exports alongside the source - facility-security.md: suppression subsection no longer splits the fire safety bullet list; clean agent wording updated to FK-5-1-12
136 lines
7.1 KiB
Markdown
136 lines
7.1 KiB
Markdown
# Facility: Security and Site Systems
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What the plant needs beyond the production machinery. Access control, CCTV,
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and whole-factory HVAC control are set requirements; the rest of this list
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is what a plant of this profile definitely needs, to be refined during site
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design.
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## Climate control: whole-factory HVAC
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The entire factory runs under continuous HVAC control, covering temperature,
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humidity, and particulate matter (PM). This is a set requirement, not an
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option per room.
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- **Temperature and humidity**: the process spec already demands 20-26 °C at
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35-60% relative humidity for pressing; the same conditioning extends to
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the whole building so materials, masters, packaging stock, and electronics
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never sit outside controlled conditions. PVC compound and paper packaging
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are both humidity-sensitive.
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- **Particulate matter**: filtration for the whole plant, with stricter
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tiers by zone. Dust in a groove is an audible defect, so the cutting room
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and galvanics clean room run at the tightest spec with positive pressure;
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pressing and packaging run cleaner than ambient; offices and logistics at
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a baseline tier. Northern Thailand's burning season (roughly February to
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April) brings some of the world's worst PM2.5 episodes, so intake
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filtration and building tightness must be designed for those peaks, not
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for average days.
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- **Continuous monitoring and alarms**: temperature, humidity, and PM
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sensors logging in every zone, with alarms on excursions, tied into the
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plant monitoring below.
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- **Energy design**: conditioning a whole factory in a tropical climate is
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a major electrical load on top of the 250 kW process cooling, and it must
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be included in the solar PV and battery sizing from the start. Heat
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recovery from the press hall (steam, hydraulics, and hot PVC all reject
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heat) and from compressors should feed the design rather than fight it.
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## Physical security
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- **Access control**: zoned, not just at the gate. Minimum zones: general
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production, galvanics clean room (controlled access is already a safety
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requirement), chemical storage, master/stamper archive, server/IT room,
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finished goods and shipping. Badge or biometric, with logs.
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- **CCTV**: entrances, perimeter, loading dock, production floor, chemical
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storage, archive. Retention policy to be defined; Thai PDPA (personal data
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protection) applies to camera footage of staff and visitors.
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- **Intrusion alarm** with monitoring, covering off-hours.
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- **Perimeter and lighting**: fencing appropriate to the site, lit
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approaches and parking.
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- **Visitor management**: sign-in, escort rules, PPE issue at entry, no
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unaccompanied access to production or galvanics.
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## Protecting the irreplaceable
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- **Master and stamper archive**: fathers and mothers are unique metal
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parts; a destroyed father can mean re-cutting and re-plating a release.
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The archive room needs fire-rated construction or safes, climate control,
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access logging, and an off-site strategy for the most critical masters.
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- **Client audio**: pre-release music is a high-value leak target, and
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labels ask about it before they send masters. Isolated storage for client
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files, encrypted transfer and at-rest storage, strict need-to-know access,
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and a written policy the sales team can show clients.
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- **Chemical inventory**: silver nitrate is valuable and regulated; nickel
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salts are hazardous. Locked storage, inventory tracking, and controlled
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issue to the galvanics team.
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## Fire and life safety
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- **Fire detection and alarm** throughout; suppression matched to each zone
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(hot PVC and hydraulic oil in pressing, chemistry in galvanics, paper and
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cartons in packaging/finished goods, and the boiler room).
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- **Boiler room safety**: the steam generator (10 bar, 180 °C) needs its own
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room, safety valves, fuel shutoff interlocks, and inspection per Thai
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boiler regulations (Department of Industrial Works requirements, licensed
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boiler operator).
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- **Emergency equipment in galvanics**: eyewash stations and emergency
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shower at the plating line, spill kits, and neutralizing agents.
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- **Emergency lighting, marked exits, assembly point**, and first-aid
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coverage on every shift.
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### Suppression design position: zoned, not full-building gas
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A full-building gas suppression system is ruled out: gas agents only work in
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sealed volumes that can hold concentration, which a ventilated production
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hall with people and loading doors cannot, and CO2 flooding is lethal in
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occupied spaces. The design position is zoned suppression:
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- **Clean agent gas** (FK-5-1-12, sold as Novec 1230, or inert gas such as
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IG-541) only in small, sealed, high-value rooms: the server/IT room,
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electrical switchrooms, PLC/control cabinets (in-cabinet micro systems),
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and above all the master/stamper archive, where sprinkler water would
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destroy lacquers and paper records and corrode the metal parts even in a
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minor event.
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- **Water** (sprinklers, or water mist where equipment matters) for the
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large spaces: production, warehouse, and packaging/finished goods, where
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paper cartons are the largest fire load in the building. The press hall's
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specific risk is a hydraulic oil spray fire (200 L at 180 bar); water
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mist handles oil fires well and is gentler on machines than deluge.
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- **Battery stack (BESS)**: gas does not stop lithium thermal runaway. Per
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NFPA 855 practice the stack needs off-gas and early-smoke detection,
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electrical isolation on alarm, physical separation from production
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(ideally its own enclosure), and deflagration venting. Detection and
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containment over suppression.
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- **Galvanics**: low fire load (aqueous baths); local clean-agent
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protection for rectifier cabinets is sufficient.
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The property insurer will drive much of the final specification, so involve
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them before the design is fixed. The archive gas system and the BESS
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detection affect room layout and belong in the site design brief early.
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## Plant systems and monitoring
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- **Utility monitoring and interlocks**: fume-extraction interlocks on the
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galvanics line (no extraction, no plating), steam and compressed-air
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pressure monitoring, leak detection, and safe-shutdown sequences.
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- **UPS and controlled shutdown** for the IT room, access control, alarms,
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and the press PLCs (a power cut mid-cycle should never leave a press in an
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unsafe state; the battery stack can carry critical loads).
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- **Lightning protection and grounding**: northern Thailand has intense
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storm seasons; the PV array, steel structures, and electronics all need a
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proper LPS and earthing design.
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- **Environmental monitoring**: the whole-factory HVAC monitoring above
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(temperature, humidity, PM in every zone), with the archive and clean room
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as the most tightly alarmed spaces.
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## Compliance anchors (Thailand)
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- Factory license (Ror.Ngor. 4) and Department of Industrial Works
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requirements for the machinery classes and chemical quantities involved
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- Boiler registration and licensed operator requirements
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- Hazardous substance registration for the plating chemistry
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- PDPA compliance for CCTV and personnel data
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- Local fire codes and building permits during construction
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All of this belongs in the site design brief, so contractors quote it from
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day one rather than retrofitting it.
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