PoE Electrician: Does Power over Ethernet Need One?

Does PoE require an electrician? A PoE electrician is not necessary for every task, but the answer depends on the type of installation and the licensing and code requirements where the project is located. Power over Ethernet operates differently from conventional line-voltage electrical systems, but that does not mean PoE cabling can always be installed by anyone.

Commercial PoE projects can involve structured PoE cabling, network equipment, lighting, controls and connections to other building systems. Some of that work may fall within low-voltage or limited-energy licensing requirements, while other portions of the project may require a licensed electrical contractor.

Is PoE Considered Low Voltage?

Power over Ethernet is commonly associated with low-voltage or limited-energy infrastructure because it delivers DC power over Ethernet cabling rather than conventional branch-circuit voltage.

That distinction can affect how a system is designed and installed, but low voltage does not automatically mean unregulated. Licensing, permitting and installation requirements vary by jurisdiction and by the work being performed.

For example, Florida requires an appropriate license for low-voltage wiring installed within a structure and specifically recognizes a Limited Energy Systems Specialty license for qualifying work under 98 volts. Other states and local jurisdictions can have different requirements. 

Who Can Install PoE Cabling?

PoE cable is the same basic structured Ethernet cabling infrastructure used for network communications, but the cable also carries electrical power. Depending on local requirements, structured cabling contractors, limited-energy contractors or appropriately licensed electrical contractors may perform this work.

The PoE electrician or installer also needs to understand the additional considerations created by carrying power over Ethernet. Cable type, conductor size, cable bundles, channel length and the amount of power being delivered can all affect the installation.

Our PoE cable guide explains these cabling considerations in more detail.

When Might an Electrician Be Required?

Even when the PoE portion of a system can be installed by a qualified low-voltage contractor, other parts of the project may involve conventional electrical work.

The PoE switches supplying power to the system ultimately require electrical power themselves. A project may also involve electrical panels, receptacles, emergency power, UPS equipment, existing lighting circuits or other building infrastructure outside the scope of the Ethernet cabling.

A PoE lighting installation may therefore involve different trades working on different portions of the same project.

Does PoE Lighting Require an Electrician?

Should smart building infrastructure projects have a dedicated PoE electrician? There is no single answer that applies to every PoE lighting project. The PoE side of the system can use limited-energy Ethernet infrastructure, but a commercial lighting project may still involve electrical work elsewhere in the system.

Existing line-voltage lighting infrastructure may need to be disconnected or modified during a retrofit. Network switches need power, and emergency lighting or other life-safety requirements may introduce additional electrical considerations.

The project also has to comply with applicable building and electrical codes, permitting requirements and contractor licensing laws. These requirements should be established for the project’s location rather than assumed based solely on PoE’s operating voltage.

Is PoE Safer to Work With Than Line Voltage?

PoE operates at much lower voltage than conventional commercial branch circuits and incorporates standards-based power negotiation between compatible equipment. A PoE switch does not simply apply its maximum available power to every Ethernet cable that is plugged into it.

The Power Sourcing Equipment determines whether a compatible Powered Device is present before normal PoE power is supplied. The amount of power available also depends on the PoE standard and connected equipment.

This is one of the important differences between Power over Ethernet and conventional electrical power distribution. However, lower operating voltage should not be interpreted as permission to ignore installation requirements.

Do PoE Installations Require Permits?

Permit requirements depend on the jurisdiction and the scope of the project. Some locations require permits for work involving low-voltage or limited-energy systems, while requirements may differ for specific types of communications or building systems.

Florida, for example, advises that most electrical and limited-energy work described by its licensing requirements typically requires a permit and directs contractors and property owners to check with the local building department. 

For commercial projects, the appropriate approach is to identify the applicable requirements during design rather than waiting until installation begins.

Who Should Install a Commercial PoE System?

A commercial PoE system should be installed by contractors qualified for the work they are performing and properly licensed where licensing is required. The project may involve networking, structured cabling, lighting and conventional electrical infrastructure, so responsibilities can be divided among different qualified trades.

For larger PoE lighting and intelligent building projects, coordination is particularly important. The network, available PoE power, cabling, controllers, fixtures and software ultimately need to operate as one system.

The important distinction is therefore not simply electrician versus no electrician. It is determining what work the project requires, which licensing and code requirements apply at that location, and making sure each portion of the system is installed by people qualified to perform it.