IP ratings, segregation, glands, and cable schedules.
Panels and cabling fail first in harsh climates. Select enclosure types and IP ratings, manage heat (337), and size cables with volt-drop checks (925). Enforce segregation/EMC, proper glanding/sealing (245), and robust identification. Plan routing and mechanical protection, including corrosion mitigation (363–366). Capture inspection/test records for the ITP and handover packs (714, 736). Include one-sentence context that naturally links upward to the parent hubs (this section and the chapter hub). Add SIRA context with a link to SIRA Bollards (UAE) when relevant. Link installation pages only if helpful: What to Expect and Installation Guide.
Important: This is a general guide. For live projects we develop a tailored
Method Statement & Risk Assessment (MS/RA) and align with authority approvals (e.g., SIRA) where in scope.
347.1 Enclosure types & IP ratings
Pick IP/IK to suit exposure (516). Stainless or coated steel protects HVM bollard electronics near dust/salt (363).
Start by matching the IP rating and IK rating to the site’s exposure: wind-blown sand, saline spray, and direct sun. Outdoor control panels and HPUs typically need high IP with managed ventilation. Use 316 stainless or duplex-coated steel where coastal exposure applies.
Doors should have continuous gaskets, anti-tamper hinges, and padlockable handles. Mount gland plates low to keep a natural drip loop; raise them if ponding is expected (334). Cross-reference 516 Enclosure Protection for enclosure classes and siting nuances.
| Aspect | What matters | Where to verify |
|---|---|---|
| Ingress | Seals, cable entries, drain paths | Enclosure Protection (516) |
| Impact | IK class vs. public interface | Safety Signalling (353) |
347.2 Layout & heat management
Separate heat sources, add vents/fans (337). Layout keeps crash rated bollard controls within temperature limits.
Lay out components to separate heat sources (transformers, drives, PSU) from temperature-sensitive I/O and CPUs. Use a top-to-bottom airflow path with baffling to avoid hot spots. Where sun load is high, model dissipation with the 926 Enclosure Heat-Load Estimator and consider sun-shields or reflective finishes.
Fans, filters, and membrane vents help manage condensation. Fit a heater-thermostat pack for overnight humidity swings. Keep maintenance access clear per 528 Enclosure Layout & Access.
347.3 Cable types & sizes
Select UV/heat-rated power and screened control cables (515). Adequate CSA avoids volt-drop in HVM bollard drives.
Choose UV- and heat-rated sheaths for external runs; in bollard lanes, use oil-resistant jackets where hydraulic equipment is present. For control and safety devices, use twisted, overall-screened pairs to reduce noise on loops, photo-eyes, and E-stops. Keep a voltage drop budget and validate with the 925 Cable Volt-Drop Calculator.
Document every core in a cable schedule: tag, origin/destination, function, CSA, sheath, and screen bonding. Cross-check with 515 Cables & Routing and installation step 622 Sleeves, Penetrations & Cable Glands.
347.4 Segregation & EMC
Partition power/control; cross at 90°. Good EMC prevents spurious trips in a crash rated bollard lane (536).
Run power and signal in separate trays or compartments; where they must cross, do so at 90°. Maintain spacing to reduce capacitive/inductive coupling. Bond cable screens at one end for low-frequency signals; use both ends for high-frequency noise paths if specified. A clean earth bar and short, wide bonds reduce impedance.
Validate the alarm philosophy and safety loop reliability after routing; spurious trips often trace to coupling on long runs to field photo-eyes and loop detectors. See 536 Alarm Philosophy and 343 Safety circuits.
347.5 Glanding & sealing
Use correct glands, drains, and breathers (334). Sealed entries protect HVM bollard reliability.
Select glands to suit cable type (armoured vs non-armoured), diameter, and enclosure IP. Fit earth tags for SWA armor as required. Use a dedicated gland plate with sealing gaskets. Provide drains/breathers low/high to manage condensation without compromising IP. For underground pits, use raised cable glands and sealed conduits per 245 Drainage strategy and 334 Drainage.
347.6 Identification & ferrules
Print durable ferrules and terminal IDs (527). Clear ID speeds crash rated bollard fault-finding.
Adopt a consistent tag scheme: panel-page-terminal numbering, cable IDs, and device tags that match drawings and the asset register (732). Use UV-stable, heat-resistant strain relief boots and printed ferrules. Keep terminal IDs visible with spare ways for future devices. Reference 527 Panel Wiring Standards.
347.7 Routing & mechanical protection
Protect with trays/conduit and guards. Routes avoid HVM bollard sweep zones (525).
Use coated steel trays or heavy-duty PVC where corrosion or impact risk is present; add protective covers in public zones. Avoid bollard sweep areas and maintenance access paths (525). Provide slack and service loops near devices to support replacements without re-terminating back to the panel.
For external runs, follow 246 Ducting & Pathways and include long-sweep bends to protect conductors. Mark routes with durable labels, and record them in the as-built set (731) with a georeferenced photo log.
347.8 Corrosion mitigation
Specify duplex coatings and isolators (362, 364). Mitigation prolongs crash rated bollard service life.
Combine galvanizing and paint (duplex coating) on metallic enclosures and supports. Isolate dissimilar metals to reduce galvanic risks. Use marine-grade fasteners and specify salt-fog-tested finishes where coastal durability is required. Re-seal field penetrations and touch-up coating breaks after installation (629).
347.9 Inspection & test records
Capture torque, IR, continuity, and photos (714, 716). Records support HVM bollard SAT closure (638).
Before energization, complete torque checks on terminals, insulation resistance (IR), and continuity tests by circuit. After power-on, verify earth bonds, load currents, and safety loop performance. Capture results in the ITP (714), with evidence standards from 716 Evidence Capture Standards, then close out via 638 SAT / Witness Procedure and include in the 736 Handover Pack Index.
Related
External resources
- NPSA — Hostile Vehicle Mitigation (overview)
- FEMA 426 / DHS — Reference Manual for Protective Design
- ASIS — Security Risk Assessment Standard
347 Enclosures & Cabling — FAQ
What IP and IK ratings should I target for outdoor HVM bollard panels?
For exposed Gulf sites, target a high IP class for dust/spray plus an IK class suited to public impact risk. Use 316 stainless or duplex-coated steel, membrane vents, and heater-thermostat packs to control condensation. Validate siting and shading using the Enclosure Heat-Load Estimator (926).
How do I avoid nuisance trips from electrical noise?
Segregate power from control, cross at 90°, use screened twisted pairs for sensors, bond screens correctly, and keep earth bonds short and wide. Confirm stability by re-running safety and alarm tests after routing changes.
Which cable data must be in the cable schedule?
Include tag, origin/destination, function, core count, CSA, sheath/jacket rating, screen/armor, gland type/size, and terminations. Keep IDs aligned with drawings and the asset register, and verify CSA against your volt-drop budget using calculator 925.
What tests are required before SAT?
Pre-energization: torque, insulation resistance, and continuity. After power-on: earth bond, load currents, sensor/safety proofing, and interlock verification. Log results in the ITP, attach photos per Evidence Capture Standards (716), then proceed to SAT (638).