For engineering, operations, and procurement leaders at gas terminals, ports, and utilities in Puerto Rico

In an industrial or energy facility, fiber is not a communications convenience. It carries SCADA, process control, safety systems, perimeter security, terminal operating systems, and the data your regulators expect you to protect. Before signing with a fiber contractor, require documented proof of seven things: certified and experienced people, a complete testing and documentation standard, a plan for your site’s hazards and access requirements, a design that survives Puerto Rico’s environment, a manufacturer-backed warranty, a defined response commitment after the last splice is made, and a coordination plan with the systems the fiber will serve. A contractor who cannot produce these before contract is unlikely to produce them after.

This article lays out what to require, why each item matters in your environment, and how to verify it.

Why industrial fiber is a different job

A fiber installation at an office park is judged on whether the links pass and the price was right. At a gas terminal, a container port, or a utility substation, the same installation carries different consequences.

A failed strand between a control room and a remote terminal unit is a loss of visibility over a process. A poorly sealed splice enclosure on a pier is a corrosion failure in eighteen months. A contractor who runs a cable through a classified hazardous area without the right methods is a compliance finding and a real safety exposure. An aerial route that was cheaper to build is the first thing a hurricane takes down, and the one that keeps your operations dark longest.

Most fiber contractors in the region can splice, terminate, and test. Fewer can do it inside an operating terminal, under a port’s security regime, or along a utility right of way, with the documentation, hazard awareness, and resilience that those environments demand. The requirements below are how you separate the two before you have committed.

Requirement 1: Certified, experienced people, named in the proposal

Fiber work quality is almost entirely a function of who does it. Require the contractor to identify, in writing:

• The design authority for the project, with industry credentials in telecommunications distribution design
• The lead technicians who will perform splicing and testing, with fiber-specific certifications and manufacturer training on the products being installed
• Years of experience of the field crew on outside plant and industrial fiber, not only inside-plant commercial work
• Whether any portion of the work will be subcontracted, to whom, and how those crews are held to the same standard

Ask for project references in comparable environments: energy, industrial, marine, or utility. Ask specifically whether the referenced work involved live operating facilities and what the contractor did to avoid disrupting them.

How to verify: Request copies of certifications and call the references. Ask the references about documentation quality and post-project responsiveness, not only whether the fiber worked.

Requirement 2: A testing and documentation standard you approve before work begins

Fiber that has not been properly tested has not been installed. It has been placed.

Require the contractor to submit, before the contract is signed, the testing and documentation package they will deliver. At minimum it should include:

• Bidirectional OTDR traces for every strand, at the wavelengths relevant to your equipment, with event tables showing every splice and connector
• Insertion loss and return loss measurements per strand against a loss budget that was calculated and agreed during design
• A labeling scheme for every cable, enclosure, panel, and strand, applied consistently in the field and matching the documentation
• As-built drawings showing actual routes, splice locations, slack storage, and enclosure positions, with GPS coordinates for outside plant
• Splice logs recording the technician, date, splice loss, and enclosure for every splice
• A test report format that your engineering team has reviewed and can file as a permanent record

Insist that documentation be delivered as a condition of acceptance, not as a follow-up item. Fiber records that arrive months late, or never, are the single most common complaint we hear from industrial owners about prior contractors.

How to verify: Ask for a redacted documentation package from a completed project. If the sample is thin, the deliverable will be too.

Requirement 3: A written plan for your site’s hazards and access controls

Gas terminals, ports, and utilities each impose conditions that a contractor must plan for rather than discover.

For gas and petroleum terminals: Require the contractor to identify classified hazardous locations along the proposed routes and to state how cable, enclosures, and installation methods will comply. Ask how they will manage hot work, whether any equipment will be brought into classified areas, and how they will coordinate with your permit-to-work system. Ask what their crews know about gas detection, evacuation routes, and stop-work authority.

For ports and marine terminals: Require confirmation that all personnel entering secure areas hold the credentials your facility security plan requires, and that the contractor has a process for escorting anyone who does not. Ask how they will work around vessel operations, crane movements, and container traffic, and how they will protect installed plant in an environment of heavy equipment and constant motion.

For utilities: Require a plan for working near energized equipment, including qualified personnel, clearances, and coordination with your operations group. For routes on poles or in shared rights of way, ask how they will handle joint-use agreements, make-ready work, and any permits required from public agencies.

Across all three, require a site-specific safety plan, evidence of the contractor’s safety record, and proof of insurance at limits appropriate to the facility.

How to verify: Have your safety and security leads interview the contractor’s project manager. The quality of the questions the contractor asks back is a reliable signal.

Requirement 4: A design built for Puerto Rico’s environment, not adapted to it

Fiber that performs on the mainland can fail on the island for reasons that have nothing to do with the glass.

Require the contractor to address, in the design:

• Hurricane exposure. Underground routes in properly sealed conduit survive storms that destroy aerial plant. Where aerial is unavoidable, require hardened attachment hardware, appropriate sag and tension, and a stated restoration approach. Ask directly how the design would have performed in the storms the island has already experienced.
• Salt and corrosion. Splice enclosures, hardware, and grounding components near the coast need materials and sealing methods rated for marine exposure. Ask what will be different about the hardware specified for your site versus an inland project.
• Water intrusion. Handholes, vaults, and enclosures in low-lying or flood-prone areas require drainage, sealing, and placement decisions made deliberately. Ask how the contractor selects enclosure locations and what happens when a vault floods.
• Power and grounding. Lightning and grounding practices for outside plant and remote enclosures should follow recognized standards and coordinate with your facility’s grounding system.
• For any link carrying control, safety, or security traffic, require the design to show physically diverse routing or a ring topology so that a single cut does not isolate a location. If the budget does not allow diversity everywhere, require the design to identify which links are single points of failure so the decision is made knowingly.

How to verify: Ask the contractor to walk your engineering team through the design decisions and explain what they would have done differently for a commercial client. If there is no difference, the design has not been adapted to your site.

Requirement 5: A manufacturer-backed system warranty

Reputable cabling manufacturers offer extended system warranties, often spanning decades, when an installation uses their certified components end to end and is performed by a contractor they have trained and authorized. That warranty covers the installed system’s performance, not only the parts.

Require the contractor to state:

• Which manufacturer’s system will be installed and whether the contractor holds the certification needed to register the warranty
• What the warranty covers, for how long, and what documentation is required to activate it
• Who is responsible for submitting the registration and when it will be confirmed

A contractor who mixes components from multiple manufacturers to reduce cost, or who is not certified by the manufacturer whose products they propose, cannot deliver this warranty. That is a meaningful difference in the risk you are accepting.

How to verify: Ask the manufacturer directly whether the contractor is an authorized installer for their warranty program.

Requirement 6: A response commitment after the project closes

Fiber gets cut. Excavators, vessel operations, vehicle strikes, storms, and rodents all find it eventually. When that happens at a terminal or utility, the question is not whether the contractor will return. It is how quickly, with whom, and with what.

Require, in the contract or a companion agreement:

• A defined emergency response time for fiber breaks affecting operations, with the contractor’s local staffing and equipment positioned to meet it
• Retention of spare cable, enclosures, and connectors matching your installation, either on your site or in the contractor’s local inventory
• A process for documenting repairs so that as-builts and test records remain current after restoration
• A named point of contact who knows your site and your records

A contractor without a local presence, or one who staffs projects from off-island, cannot credibly commit to this. Their proposal may be competitive. Their restoration time will not be.

How to verify: Ask where the contractor’s nearest crew, splicing equipment, and spare inventory are located, and how many technicians are available on the island on a given day.

Requirement 7: Coordination with the systems the fiber will carry

Fiber in an industrial facility exists to serve other systems: control networks, perimeter video, access control, radio backhaul, terminal operating systems, metering, and telemetry. The contractor should understand those systems well enough to build for them.

Ask how the contractor will:

• Confirm strand counts, connector types, and loss budgets against the equipment actually being connected
• Support segregation between operational technology networks and business networks where your architecture requires it
• Coordinate with the integrators or vendors installing the systems that terminate on the fiber
• Provide slack, spare strands, and pathway capacity for growth without a second construction project

A fiber contractor who also carries network, electrical, and security systems capability can close many of these gaps within a single organization. Where the contractor is fiber-only, the coordination burden shifts to you, and the interfaces between contractors are where problems appear.

How to verify: Ask for an example of a project where the contractor coordinated with a control system or security integrator, and what documentation defined the handoff.

Red flags before signature

Any of the following should stop the process until resolved:

• Refusal or hesitation to name field personnel and their certifications
• A proposal that does not specify the testing standard or documentation deliverables
• No site-specific safety plan, or a generic one that does not reference your facility’s hazards
• Aerial routing proposed as default without discussion of hurricane exposure
• No manufacturer warranty, or one the contractor cannot register
• No local crew, equipment, or spares
• A price that is significantly lower than others with no explanation in scope, method, or materials

The last item deserves emphasis. Fiber pricing that appears too good is usually explained by testing that will not be done, documentation that will not be delivered, materials that will not survive the environment, or a warranty that does not exist.

A short pre-signature checklist

Before signing, confirm each of the following is in the contract or an attached document:

1. Named design authority and lead technicians with certifications attached
2. Testing and documentation standard, approved by your engineering team
3. Site-specific safety and access plan reviewed by your safety and security leads
4. Design narrative addressing hurricane, corrosion, water, grounding, and redundancy
5. Manufacturer warranty identified, with contractor certification confirmed
6. Emergency response commitment, spares plan, and named local contact
7. Coordination plan with the systems the fiber will serve

If any item is missing, the contract is not ready.

Frequently asked questions

Is underground fiber always the right choice in Puerto Rico?

Not always, but it should be the default assumption for any link that matters to operations, with aerial used where underground is impractical and the exposure is understood. The cost difference is real. So is the difference in restoration time after a storm.

How much documentation is enough?

Enough that a technician who has never seen your facility could locate a splice, identify a strand, and compare a new test to the original acceptance record. That is the standard. Less than that becomes a problem the first time something breaks.

Should the fiber contractor also install the network equipment?

There are advantages when one organization carries both. Loss budgets are calculated against real equipment, handoffs are internal, and accountability for a link that does not perform is undivided. If separate contractors are used, define the interface and the acceptance responsibility explicitly.

What is a reasonable emergency response time?

It depends on the criticality of the link and the location, but for operations-affecting breaks at a terminal or utility, a same-day mobilization with splicing capability should be achievable from a contractor with local presence. Anything measured in days is a business continuity issue.

Working with a contractor already built for this environment

Bonneville Group has installed and maintained telecommunications, electrical, and IT infrastructure across Puerto Rico and the Caribbean for more than 40 years, including fiber plant for industrial, energy, and port environments where the standards above are not aspirational. They are how the work is done. Our crews, splicing equipment, and inventory are on the island, our designs are built for the storms and salt air this region actually experiences, and our documentation is delivered as a condition of our own acceptance, not yours.

Because we also carry network, electrical, and security systems capability, and because our Managed IT practice provides ongoing infrastructure and cybersecurity support, the fiber we install is designed against the systems it will serve and supported by the same organization long after commissioning.

If you are preparing to select a fiber contractor for a terminal, port, or utility project, we are glad to review the requirements above against your scope, provide sample documentation from comparable work, and put our field leadership in front of your engineering and safety teams before any proposal is written. That is the right way to start, and we welcome the conversation.