Cable CATV Electrical Safety Codes
Outline of Issue:
The Cable system if it delivers only TV only services, or more commonly offer bidirectional internet connections via a Modulator Demodulator known as a MODEM.
The Cable system is typically a franchise run and regulated by your local city and has a franchise agreement in place for with the cable company/operator pays perhaps 5% of gross revenue to the city. Check with you local city for the specifics. Here in Franklin Wisconsin it is memorialized as Ch. 96.
Executive Summary / Introduction
This letter raises a basic safety question: Are outdoor cable and communication lines in Franklin being installed and maintained in a way that protects residents from fire and shock hazards, as required by state law and local ordinances?
Over the past several weeks, I have documented multiple homes in my neighborhood—at least eight within three blocks of my address—where the cable television (CATV) grounding equipment e.g. Coaxial Ground Block appears to be installed improperly or is missing altogether. This equipment, usually a small metal block where the cable company’s line first enters the property, is supposed to be securely attached and connected to the home’s grounding system. This apparently innocuous metal block is the lightning rod for your cable system. When it is not properly installed:
- Electrical surges from lightning or the utility system can enter the home,
- Increasing the risk of fire, damage to property, and electric shock.
The National Fire Protection Association (NFPA) was organized in 1897 and developed the National Electric Code (NEC) in 1911; on which most of Wisconsin’s electrical safety rules SPS 314 and SPS 316 are based on. Franklin’s own ordinances are designed to prevent exactly these kinds of hazards. They require that electrical and communication equipment be:
- Built and maintained to minimize danger to life and property, and
- Promptly repaired or disconnected if known to be defective.
Despite this, it appears that:
- The City’s Electrical Inspector has been aware for several weeks of multiple unsafe or non‑compliant cable grounding installations but has not ordered repairs, disconnections, or other corrective actions.
- The City may be relying on a narrow interpretation of state rules to claim it has no jurisdiction over outdoor cable installations, even though those same rules clearly cover “electrical power and communication equipment and lines” and Franklin’s own code requires that low‑voltage and CATV wiring follow state electrical standards.
3.The electrical inspectors interpretation of the code SPS 316.002(2)(e) that only applies to power utilities gives the CATV system a pass an the city lack jurisdiction. While the city ordinance Ch. 96 gives police power to insure the cable system is in compliance with the contract regarding installation, operation and customer service. Evidence suggest that the City’s UDC electrical inspection department may have a conflict of interest, raising questions about whether inspections and enforcement related to electrical safety have been carried out in the public interest.
These concerns are not merely technical. They go to the City’s legal duty to safeguard residents and manage risk:
- State code requires that known dangerous electrical conditions be promptly corrected or taken out of service.
- Franklin’s ordinances place responsibility on the Electrical Inspector and the City to enforce these safety standards.
- Case law recognizes that utilities and communications providers owe a high duty of care in installing and maintaining their systems.
This letter therefore:
- Requests clear written answers about who is responsible for enforcing these safety rules,
- Asks the City to review its own licensing and inspection practices, and
- Urges prompt corrective action, including engaging a electrical inspector that is concerned for public safety and ensuring that Charter/Spectrum and other providers bring outdoor cable grounding installations into compliance.
In plain terms: Residents should not have to become their own electrical inspectors to be protected from preventable fire and shock hazards. The goal of this correspondence is to ensure that the City of Franklin, together with state regulators and the utilities involved, fulfills its obligations to protect the public and manage the associated legal and financial risks.
Reference Codes Statutes
- National Fire Protection Association NFPA 70 (NEC)
- SPS 316
- SPS 314
- NEC 820
- NEC 110.3(b)
- PSC 114.099
Regulatory Consumer Protection
- Public Service Commission of Wisconsin (PSC)
- DSPS
- DACPT Consumer Protection
- Local Electrical Inspector
- Local Fire Chief
- Local City Administrator
Relevant Wisconsin Court Opines
Damages to property and injury from surges power, telephone and CATV cable lines is not new.
Fire:
Jackson v. Wisconsin Telephone Co., 88 Wis. 243, 253, 60 N.W. 430 (1894)
Beacon Bowl Inc. v. Wisconsin Elec. Power Co., 501 N.W.2d 788 (Wis. 1993)
Ransome v. Wisconsin Electric Power Co.,
Personal Injury Shock:
Lobermeier v. General Tel. Co. of Wis., 119 Wis. 2d 129, 349 N.W.2d 466 (1984) (Wis. Sup. Ct.)
Damage to Personal Property:
The 1999 NIST report analysis cable CATV surge damage to subscribers in Tennessee. Cable CATV Surge NIST Update guide
Social media is full of hundreds of people reporting dead modems and network gear damaged after electrical storms. Here are just a few samples:
EX.18_'Surge came in from cable.. I Xfinity Community Forum' - forums.xfinity.com
EX.25_'Lightning came through coax fried modem, router, and PC linustechtips.com
Storms keep killing my network equipment
Reference:
List of City Building Inspectors
List Wisconsin County Electrical Inspectors
Memorandum:
Technical Memorandum: Wisconsin Utility Negligence Precedents