CCTV for warehouses and factories: designing for scale and harsh conditions

Industrial sites offer installers bigger projects, repeat maintenance work and customers who take downtime seriously. They also bring long cable runs, high ceilings, dust, heat, machinery and strict safety rules. A design that works in an office can fail quickly in a factory.

This guide covers what to look for when you take on warehouse and factory work, from the first survey through to handover.

Start with what the customer wants to achieve

Industrial customers often have several goals at once, and each one requires a different design.

• Security: theft, intrusion and perimeter breaches
• Goods movement: proof of what was loaded or received, and in what condition
• Safety: reviewing accidents and near misses
• Disputes: damage claims from carriers, suppliers or customers
• Compliance: audit, insurer or customer requirements
• Operations: a way to review processes, or monitor a line remotely

Find out who has a stake in the project. Security, operations, IT, and health and safety may all have different views, and a design that satisfies only one of them can run into trouble late in the process.

Key areas to cover

Perimeter and gates

Cover fence lines, gates and any likely approach. For large sites, use a mix of overview cameras and analytics that can flag activity after hours. Avoid relying on simple motion detection outdoors, since wind, rain and wildlife can trigger constant false alerts.

At vehicle gates, plan dedicated cameras for number plates and the driver, separate from a general overview. Pay attention to headlights, shutter speed and the angle of approach.

Loading docks

These are often the most valuable cameras on the site, since many disputes start here. Cover:

• each dock door, with a view into the trailer when it's open
• vehicle identification or dock number
• pallets as they move in and out
• the seal or lock of the container, if possible

Bright daylight against a dark warehouse interior is a challenge at dock doors. Choose cameras with strong wide dynamic range, and test them during real loading periods.

Storage aisles and racking

Racks form long, narrow views that suit corridor-format cameras, where the picture is rotated to a tall shape. Mount high enough to be clear of forklifts, but check that racks and stock won't block the view. Find out how pallets are stacked, as a full warehouse behaves very differently from an empty one at the time of survey.

High-value storage

Add detail cameras for secure cages, high-value goods and any access-controlled rooms. Integration with access control can be useful here.

Production lines

Cameras may help with investigations and process reviews. Ask about hazards, intellectual property restrictions and any policies on filming staff at work. Unions or local labour rules may also be relevant.

Offices, reception and weighbridges

Don't forget offices, reception, IT rooms and any weighbridge. These are common points of dispute, and they also connect with the visitor process.

Fire exits and muster points

These cameras can help during incident reviews. Note, however, that CCTV doesn't replace a fire safety system, and any integration with those systems must follow the relevant rules.

Environmental challenges

Check the conditions at each camera location, and choose equipment rated for them.

The last row needs emphasis. Hazardous zones, such as those with flammable vapour or dust, need specially certified equipment. If you're not qualified, say so and bring in a specialist. Getting this wrong can be catastrophic.

Cabling and long distances

Long distances are the main technical difference from smaller work.

• Plan around the 100 metre Ethernet limit. Large sites need network switches in distributed locations or fibre between them.
• Use fibre between buildings and for long backbone links. It handles distance well, doesn't carry surges and has high capacity.
• Choose suitable containment. Metal conduit or heavy-duty cable trays may be needed in production areas.
• Protect against forklifts and traffic. Use bollards or route cable away from the risk.
• Separate from high-power cables. Machinery and variable-speed drives can cause interference on poorly routed copper runs.
• Get drawings and work permits. Before drilling, find out about hidden services, such as gas, compressed air or power.

High ceilings

Mounting at height affects both picture and maintenance.

• Use longer lenses to keep a useful view of people.
• Plan for how you'll clean and replace cameras. Access may require a lift, and often can only happen during shutdowns.
• Choose motorised zoom where possible, as remote adjustment saves lift hire.

Network and recording design

Industrial systems can quickly grow beyond one recorder.

• Keep it separate. Put the camera network on its own VLAN or physical network, and coordinate this with IT. Keep it well away from industrial control systems unless their owners explicitly approve otherwise.
• Use managed switches. They let you see port power and errors, and they support remote restart.
• Use redundancy on critical links. A ring topology or dual uplinks can keep the system going when a link fails.
• Choose industrial switches for harsh locations. Standard switches may not handle the temperature in a roof-level enclosure.
• Decide on recording architecture. Some sites use a central server with a video management system, while others put recorders in each building. The right choice depends on distance and the customer's team.
• Protect recordings. Consider RAID, power protection and backup of important footage.
• Plan for retention. Disputes can take weeks to arise, so ask for retention needs up front. See our storage guide.
• Secure the system. See our cyber security guide.

Power

• Check the available power near each switch cabinet.
• Size PoE budgets properly, especially with long-range infrared, heaters and PTZ cameras.
• Use a UPS for switches and recorders, and check how long it needs to last.
• Consider surge protection on outdoor and inter-building runs.
• Use a qualified electrician for mains work, as industrial sites usually require.

Working safely on industrial sites

Safety is an area where industrial work differs most from retail.

• Induction: Expect to attend a safety briefing before you start, and to follow site rules.
• Permits to work: You may need permits for working at height, hot work such as drilling or cutting in sensitive areas, and entering restricted zones.
• Forklifts and traffic: Use barriers, spotters and high-visibility clothing when you're working in active areas. Plan work during low-traffic hours, if you can.
• Working at height: Use proper access equipment, and train your staff to use it. Ladders are often not allowed on such sites.
• Lockout procedures: Never work near machinery unless the proper isolation procedures have been followed.
• Personal protective equipment: Wear what the site requires, and make sure it's kept in good condition.

Include these costs and delays in your quote. Time spent on induction, permits and restricted working hours is real, and it can double the labour on a job if you haven't accounted for it. See our guide to quoting CCTV jobs.

Project management

Larger jobs need more organisation than a shop installation.

• Phase the work. Break it into areas that fit the site's operations.
• Agree on a schedule. Include shutdown windows and any access restrictions.
• Keep a camera schedule. List each camera's number, location, type, network address, cable ID and switch port.
• Report regularly. A short weekly update goes a long way with industrial customers.
• Manage change. Layout changes are common during long projects. Get written approval before moving or adding cameras.
• Test thoroughly. Prepare a formal test sheet and witness it with the customer.

Use a job management system to split the project into stages, and give technicians access to notes and drawings on site.

Handover

Industrial customers usually expect more documentation than small businesses, such as:

• as-built drawings and a camera schedule
• network diagrams and addressing plan
• test results and acceptance sheets
• a list of credentials held, and who holds them
• user and administrator training records
• warranty details and a maintenance plan

Our commissioning and handover checklist is a useful base.

Maintenance matters more here

Dust, vibration and heat mean that industrial systems need regular attention. Include lens cleaning, checking mounts, verifying recording and inspecting outdoor connectors. Plan access with the site, since lifts or shutdowns may be needed. It makes these sites good candidates for a maintenance contract, which should be priced to reflect the access costs.

Common mistakes

• Surveying an empty warehouse. Stock will block views later.
• Underestimating safety and access costs. They can add greatly to labour.
• Using commercial-grade gear in harsh conditions. Failure rates can climb fast.
• Relying on simple motion alerts outdoors. Staff soon start ignoring them.
• Connecting to the wrong network. Always coordinate with IT, and keep away from control systems.
• No plan for how to maintain high-mounted cameras. Service visits become expensive.

Industrial work rewards careful preparation. Start with a smaller warehouse project if you are moving up from retail, and build your safety processes and documentation as you go. Your first good reference on an industrial site can open many doors.