The Point of Demarcation: Where the Utility Stops and You Begin
In the State of Connecticut, the Public Utilities Regulatory Authority (PURA) and utility Information and Requirements (I&R) manuals strictly define the point of delivery where the regulated utility’s legal and financial responsibility ceases and private property begins.
Connecticut Demarcation & Repair Responsibility Triage
Click on any common electrical fault or storm damage scenario below to immediately see whether Eversource/UI or the property owner is legally responsible, what licensing is required, and who pays the bill:
Fallen Tree Limb Ripped Weatherhead & Steel Mast Conduit Off Exterior Wall
Eversource/UI line crews will arrive, safely de-energize the dangling triplex cable, and disconnect it from the damaged mast. However, utility line workers will NOT replace your steel pipe, rebuild structural fascia wood, or touch your private weatherhead. They will place a lockout tag on the line. You must hire an Unlimited Electrical Contractor (E-1) to rebuild the mast, mount heavy structural unistrut, and obtain a municipal cut-in release before the utility will re-attach power.
Overhead vs. Underground Demarcation Architecture
The exact physical point of demarcation varies based on whether your service originates from an overhead pole line or an underground pad-mounted transformer. The architectural schematics below map every single component to its legal owner under Connecticut regulations:
[UTILITY POLE & TRANSFORMER] <--- UTILITY PROPERTY (Eversource/UI)
|
| Triplex Overhead Drop (Aluminum ACSR)
| [UTILITY PROPERTY - Free repair if snapped]
v
========================================================
* POINT OF DEMARCATION (CRIMPED SPLICE & WEDGE CLAMP) *
========================================================
|
+-- Point of Attachment (POA) Eye-Bolt <-- CUSTOMER
+-- Weatherhead & Drip Loops <-- CUSTOMER
+-- 2" Rigid Metal Conduit (RMC) Mast <-- CUSTOMER
+-- Service Entrance Cables (#4/0 Al) <-- CUSTOMER
|
+---------------------------+
| GLASS WATT-HOUR METER | <-- UTILITY PROPERTY (Eversource/UI)
+---------------------------+
| METAL METER SOCKET BOX | <-- CUSTOMER PROPERTY
| Internal Terminal Lugs | <-- CUSTOMER PROPERTY
+---------------------------+
|
+-- Outside Emergency Disconnect (NEC 230.85) <-- CUSTOMER
+-- Ground Rods (Dual 8ft Copper Clad) <-- CUSTOMER
+-- Main Breaker Panelboard (200A/400A) <-- CUSTOMER
[PAD-MOUNT TRANSFORMER OR POLE RISER] <--- UTILITY PROPERTY
|
| Trenching & Excavation (>36" deep) <-- CUSTOMER
| Sand Envelope & Backfill <-- CUSTOMER
| 3" Schedule 80 PVC Conduit Riser <-- CUSTOMER
| Underground Warning Ribbon <-- CUSTOMER
|
| Underground Cable Conductor <-- UTILITY (Residential)
v
========================================================
* POINT OF DEMARCATION: LINE-SIDE LUGS IN METER PAN *
========================================================
|
+---------------------------+
| GLASS WATT-HOUR METER | <-- UTILITY PROPERTY (Eversource/UI)
+---------------------------+
| EXPANSION SLIP SLEEVE | <-- CUSTOMER PROPERTY
| METER SOCKET ENCLOSURE | <-- CUSTOMER PROPERTY
| Load-Side Conductor Feeds | <-- CUSTOMER PROPERTY
+---------------------------+
|
v
[INTERIOR 200A MAIN PANEL] <-- CUSTOMER PROPERTY
Eversource Energy vs. United Illuminating (UI): PURA Demarcation Rules
While both electric distribution companies operate under Connecticut Public Utilities Regulatory Authority (PURA) oversight and National Electrical Code standards, their respective Information and Requirements (I&R) manuals feature distinct jurisdictional nuances:
| INFRASTRUCTURE ASSET | EVERSOURCE ENERGY TERRITORY | UNITED ILLUMINATING (UI) TERRITORY |
|---|---|---|
| Overhead Service Drop Cable | Owned & repaired by Eversource from pole to customer POA splice. Replacement at $0 utility cost. | Owned & repaired by UI from pole to customer POA splice. Replacement at $0 utility cost. |
| Point of Attachment (POA) | Customer provides and maintains approved eye-bolt or mast clamp anchored to building framing. | Customer provides and maintains heavy-duty mechanical bracket. UI attaches service wedge clamp. |
| Rigid Mast & Weatherhead | 100% Customer property. Must be 2" Rigid Metal Conduit (RMC) if passing through roof overhang. | 100% Customer property. Must meet UI Table of Requirements for mechanical wind load. |
| Watt-Hour Meter (Smart Meter) | Eversource property. Meter technician sets, tests, seals, and maintains meter at no direct charge. | UI property. UI meter ops department inspects socket, installs smart meter, and affixes seal. |
| Meter Enclosure & Terminal Lugs | 100% Customer Property. If internal jaws overheat or arc, customer must replace socket. | 100% Customer Property. Must select from UI-approved manufacturer list (Milbank, Siemens). |
| Underground Lateral Cable (Res) | Eversource pulls and maintains secondary cable in customer-installed conduit up to 150 ft. | UI furnishes and installs cable in customer-provided trench/conduit subject to UI TOR distance rules. |
| Pole Transformer Upgrades | If customer upgrades to 200A/400A requiring larger pole transformer, Eversource absorbs cost on grid side. | UI upgrades pole transformer under PURA service extension rules; customer pays only if abnormal facility. |
| Emergency Re-energization Rule | Strict requirement: Municipal 'Green Tag' cut-in release must be logged in Eversource portal. | Strict requirement: Town electrical inspector must transmit approved cut-in to UI dispatch desk. |
The Storm Outage Reality: Why Utilities Refuse to Reconnect Damaged Masts
During Connecticut winter Nor'easters and summer microbursts, hundreds of property owners experience a jarring surprise: an Eversource or UI bucket truck rolls up to their street, restores neighborhood power, but leaves their home completely dark with a yellow or red lockout tag on the meter.
The Utility Line Crew's Mandate
Utility lineworkers are legally forbidden from attaching energized overhead lines to structurally compromised customer equipment. If your steel mast is bent, pulled out of the brickwork, or the weatherhead is cracked, re-energizing creates an immediate fire and electrocution hazard.
The E-1 Emergency Rebuild
You must immediately contact a licensed E-1 Master Electrician. Charles E. Federick Sr. dispatches emergency crews to remove the bent mast, replace damaged service entrance cables, mount heavy-gauge Unistrut backing channels into building framing, and install a code-compliant weatherhead.
Municipal Release & Utility Hook-In
Once the structural rebuild is complete, the municipal electrical inspector inspects the installation and issues an expedited emergency cut-in authorization directly to Eversource/UI. The utility line crew can then safely attach their drop and set the meter.
Demarcation Red Flags in Real Estate Transactions
During home purchase inspections across Connecticut, general home inspectors frequently flag defects on exterior service entrance equipment. Confusion over utility versus buyer/seller responsibility can derail closing deadlines:
Deteriorated Cloth-Braided Service Entrance (SE) Cable
Older homes in Waterbury, Danbury, and New Haven often feature 1950s cloth-jacketed SE cable where the outer woven insulation has frayed, exposing inner wires to rainwater intrusion into the meter pan. Seller Responsibility: This is 100% private property and must be replaced by a licensed E-1 contractor.
Missing Meter Enclosure Tamper Seal
If the plastic or lead tamper seal on the bottom of the electric meter enclosure is broken or missing, home buyers panic assuming illegal power diversion. Utility Resolution: A licensed electrician coordinates with Eversource/UI to inspect the internal jaws and reseal the meter with an official utility barcode tag.
Electric Meter Within 36" of Gas Regulator
When a property owner installs a natural gas furnace or backup generator, plumbers often locate the new gas meter within 3 feet of the existing electric meter pan, violating Eversource/CNG safety rules. Remediation: Either the gas utility relocates the relief vent piping or CF Electrical Service relocates the electric service equipment.
Connecticut Utility Demarcation FAQs
Who owns the overhead electrical service drop wires from the pole to my house in CT? ↓
If a fallen tree limb pulls the electrical pipe or weatherhead off my house, who pays to fix it? ↓
Who owns the glass electric meter and the metal meter socket box? ↓
Who owns underground electrical service laterals in Connecticut? ↓
Can a homeowner cut the utility tamper tag or pull an electric meter in an emergency? ↓
Need Rapid Service Mast or Meter Pan Repairs in Connecticut?
Whether storm damage pulled your weatherhead from the wall or Eversource tagged your meter enclosure as non-compliant, Master Electrician Charles E. Federick Sr. coordinates emergency repairs, municipal electrical releases, and rapid utility cut-ins across all 8 Connecticut counties.