UniFi deployment oil gas refinery environments present unique engineering requirements that standard commercial deployments never address — hazardous area classifications, explosion-proof enclosures, and OT/IT isolation that is not optional.

UniFi deployment oil gas refinery facilities requires a design framework that standard commercial deployments don’t address: hazardous area classifications, explosion-proof and intrinsically safe equipment requirements, extreme environmental conditions, and the operational reality that a surveillance or network failure in a refinery process area is a safety — not just a security — event. 2M Technology deploys surveillance and networking infrastructure for petrochemical, oil and gas, and industrial energy facilities across Texas. This guide covers the engineering decisions specific to petrochemical surveillance infrastructure that distinguish compliant deployments from non-compliant ones.

Every UniFi deployment oil gas refinery project 2M Technology undertakes starts with an area classification review. For general camera and NVR specifications, see our AI Pro installation guide and UNVR Pro storage guide. This page addresses the oil, gas, and refinery-specific layer on top of standard commercial deployment practice.

1. Hazardous Location Classifications — What Engineers Must Know

Before any camera or network equipment is specified for an oil, gas, or refinery facility, the site’s hazardous area classification must be established. In North America, the NEC (National Electrical Code) defines hazardous locations under NEC Article 500–505. Equipment installed in classified areas must be certified for the hazard class, division (or zone), and group.

NEC Class/Division System

Zone mapping is the foundation of any UniFi deployment oil gas refinery site design — equipment selection follows zone classification, not the other way around.

2. Facility Zone Mapping for UniFi Deployment

2M Technology maps every oil, gas, and refinery facility into three deployment zones before designing any camera or network infrastructure:

The practical implication: UniFi cameras in explosion-proof housings can be deployed in Division 2/Zone 2 areas — the camera electronics are sealed inside a rated enclosure. For Division 1/Zone 1 areas (inside process buildings, at wellheads), purpose-built intrinsically safe cameras from vendors like Axis Communications or Pelco are required — UniFi cameras in housings are not rated for Zone 1.

Camera selection for UniFi deployment oil gas refinery environments follows a single rule: the NEC classification of the camera position determines the enclosure requirement.

3. Camera Selection for Harsh Oil & Gas Environments

Safe / Unclassified Areas (Zone A)

Standard UniFi cameras are fully suitable for unclassified areas of oil, gas, and refinery facilities — administrative buildings, parking areas, control room exterior, truck scales, main gate, and fence line perimeter away from process areas. For these positions, apply the same selection logic as any industrial facility:

• Perimeter fence and gate: G5 Bullet or G6 Turret — IP66 rated, -30 to 50°C operating range handles Texas heat and cold snaps
• Main gate LPR: AI Pro — LPR at vehicle entry for authorized contractor and delivery vehicle tracking
• Parking and administrative: G5 Bullet or AI Turret
• PTZ for large yard areas: G6 PTZ at 25–35 ft pole height for active monitoring of truck loading areas and tank farm perimeter

Division 2 / Zone 2 Areas (Zone B) — Explosion-Proof Enclosures

For Division 2 areas around tank farms, outdoor process equipment, and loading racks, standard UniFi cameras can be deployed inside explosion-proof camera enclosures rated for Class I Division 2. These enclosures:

• Are sealed to prevent ignition from internal camera heat or electrical sparks reaching the surrounding atmosphere
• Rated by UL, CSA, or ATEX certification bodies specifically for the gas group and temperature class of the hazard
• Accept standard bullet or dome cameras inside (the camera remains standard; the enclosure provides the hazardous area rating)
• Must be selected based on specific gas group — Group C (ethylene) and Group D (propane/butane/gasoline vapor) are most common in refinery environments

2M Technology works with explosion-proof enclosure manufacturers (Pelco, Videotec, STAHL) to specify appropriate housings for Division 2 deployments, then installs standard UniFi cameras inside the housings for Protect integration.

Environmental Ratings for Texas Refinery Conditions

4. Perimeter & Process Area Coverage Design

Facility Perimeter

Refinery and petrochemical facility perimeters are typically large — a mid-size Texas refinery may have 1–4 miles of fence line. Coverage strategy:

• G5 Bullet cameras at 50–60 ft intervals on fence line posts for continuous perimeter coverage
• G6 PTZ cameras at each corner and at key fence sections for active monitoring and zoom capability
• AI Pro cameras at all vehicle entry gates for LPR and driver identification
• Motion-activated lighting integrated with camera zones for after-hours deterrence and better camera performance

Tank Farm Coverage

Tank farms present unique challenges: tanks are tall (20–60 ft), create visual obstructions between camera positions, and the area between tanks is often a Division 2 hazardous area. Coverage approach:

• PTZ cameras at elevated positions on poles or tank farm structures to provide overview of the full tank farm perimeter
• AI Pro or G5 Bullet cameras at each tank access point (ladder base, valve manifold area) for personnel tracking
• Cameras in Division 2 areas of tank farms require explosion-proof housings — coordinate with the facility’s Area Classification Drawing

Loading Rack Coverage

Loading racks (truck and rail) are high-activity zones with LPR and load verification requirements. Standard deployment: AI Pro at approach and departure points for LPR, G5 Pro cameras positioned to capture the full loading arm engagement area, and a PTZ for rack overview. Loading rack areas are typically Division 2 — verify enclosure requirements with the facility’s hazardous area drawings.

Network design for a UniFi deployment oil gas refinery facility must maintain absolute OT/IT isolation — surveillance cameras must have no network path to SCADA or DCS systems.

5. Network Infrastructure Design for Refinery Facilities

Network Segmentation

Refinery and petrochemical facilities operate multiple distinct networks that must remain strictly separated:

• OT (Operational Technology) network: DCS, SCADA, PLC systems — must be air-gapped or strictly firewalled from all IT networks. UniFi camera VLANs must never have paths to OT networks.
• IT corporate network: Office systems, ERP, email
• Security/surveillance VLAN: UniFi cameras, NVR, access control — isolated from both OT and corporate traffic
• Operator Wi-Fi: Mobile devices for field operators — separate SSID, no path to OT

See our VLAN design guide for firewall rule recommendations. In refinery environments, the camera VLAN isolation from OT systems is non-negotiable — an OT network breach through a compromised camera is a catastrophic scenario.

Fiber Backbone in Refinery Environments

All backbone cabling in refinery facilities must use fiber — copper runs in process areas are EMI-susceptible due to variable frequency drives (VFDs), motors, and high-voltage equipment throughout the facility. OS2 armored fiber in rigid steel conduit is the standard for all refinery backbone runs. See our fiber backbone planning guide for specification details.

Intrinsically Safe Network Equipment

Ethernet switches and patch panels cannot be installed in Division 1 areas. All network equipment (switches, NVR, patch panels) must be located in safe (unclassified) areas — typically in a control room, operations building, or a purged-and-pressurized enclosure if field-located near process equipment.

6. Control Room & Operator Workstation Integration

The control room is the nerve center of refinery surveillance — operators need live camera views integrated into their monitoring workflow without disrupting DCS operations. UniFi Protect considerations for control room integration:

• Dedicated UniFi Protect workstations: Separate physical workstations from DCS terminals — no shared hardware between surveillance and process control
• UniFi Protect Viewport: The UP-Viewport device provides a dedicated HDMI output for a surveillance display screen in the control room, without requiring a full PC workstation — ideal for adding a camera view monitor to existing control room layouts
• VLAN isolation: The surveillance workstation is on the security VLAN — it has access to the NVR management interface but no path to the OT network
• Mobile operator access: For field operators, UniFi Protect mobile app access via the corporate Wi-Fi SSID (never on OT network Wi-Fi) allows camera views on tablets during field rounds

7. Wireless Coverage in Refinery Environments

Wi-Fi deployment in refinery environments requires the same hazardous area assessment as cameras. Standard UniFi APs are suitable for unclassified areas only — administrative buildings, control rooms, parking areas, and truck scales. For Division 2 process areas, APs must be in explosion-proof enclosures or replaced with intrinsically safe wireless solutions.

Refinery campus Wi-Fi for operator mobile devices typically covers:

• Control room and administrative building: Standard UniFi U6 Enterprise or U7 Pro APs
• Maintenance shop and warehouse: Standard UniFi APs (unclassified areas)
• Perimeter patrol roads: Outdoor APs on poles for operator radio/tablet coverage during rounds — verify classification before placement near process areas
• Process area coverage: Specialized intrinsically safe or explosion-proof wireless solutions — outside standard UniFi scope

8. NVR & Storage Architecture for Refinery Deployments

Refinery camera deployments typically involve 100–400+ cameras, 4K resolution at critical positions, and extended retention requirements (60–90 days for regulatory compliance and incident investigation). Storage architecture considerations:

• NVR sizing: Enterprise NVR (ENVR) with 16 drive bays for deployments over 100 cameras — supports up to 210 cameras with 10G SFP+ uplinks
• Retention: 90-day retention for all cameras requires significant storage. At 2K/motion recording: approximately 300 GB/camera/30 days × 3 months = 900 GB per camera. For 100 cameras: 90 TB usable. Plan multiple NVRs or NAS expansion.
• Redundancy: RAID 6 for all NVR storage in refinery environments — two simultaneous drive failures cannot cause data loss in a facility where footage may be evidence in a regulatory or legal proceeding
• Physical security: NVR equipment in a locked, access-controlled control room or server room — not in a general warehouse or unlocked utility room

See our NVR storage sizing guide and Enterprise NVR deployment guide for detailed sizing methodology.

UniFi Deployment Oil, Gas & Refinery — Camera Zone Selection Reference

These are the most critical mistakes that make UniFi deployment oil gas refinery projects non-compliant or operationally dangerous.

9. Common Oil & Gas Deployment Mistakes

• Installing standard cameras in Division 2 areas without rated enclosures: This is a safety violation — not just a regulatory issue. Standard camera enclosures are not sealed against flammable atmosphere ingress.
• Ignoring the Area Classification Drawing: Every permitted refinery has an Area Classification Drawing (ACD) showing Division/Zone boundaries. Designing a camera system without referencing the ACD leads to non-compliant equipment placement.
• Network paths between surveillance VLAN and OT network: Even indirect paths between camera VLANs and DCS/SCADA systems create regulatory and cybersecurity exposure. ISA/IEC 62443 standards prohibit this topology.
• Copper backbone in process areas: EMI from VFDs and motors causes intermittent link failures in copper cabling near process equipment — use fiber exclusively for any backbone run near or through process areas.
• Insufficient retention for regulatory compliance: Many state and federal regulations for petrochemical facilities require specific footage retention periods for incident reporting — verify retention requirements before sizing storage.
• No redundant NVR power: An NVR without UPS protection that loses power during a process incident loses the footage of that incident — the exact footage that post-incident investigation requires.

UniFi Oil & Gas Deployment Services by 2M Technology

2M Technology has experience deploying surveillance and network infrastructure for industrial and energy sector facilities across Texas. Our oil and gas deployment scope includes area classification review, camera placement design for all facility zones, explosion-proof enclosure specification, fiber backbone design, network segmentation for OT/IT isolation, NVR sizing, and system commissioning.

• 2M Technology oil & gas security services
• Explosion-proof camera systems
• UniFi commercial deployments in DFW
• Fiber backbone planning guide
• VLAN design for commercial security
• Back to UniFi Deployment Center

Standards references: NFPA 70 (NEC) Article 500–505 · ISA/IEC 62443 OT Cybersecurity

Frequently Asked Questions