The City of Hillsboro hereby sets forth guidelines for the installation of lightning arresters within the City of Hillsboro’s infrastructure to protect equipment and ensure the reliable and uninterrupted supply of electricity to customers. Lightning arresters will be strategically installed in specified locations to mitigate the risks associated with lightning strikes. This policy applies to newly installed infrastructure as of the adoption of this policy.  Existing infrastructure will be brought up to standard as maintenance and replacement allows.

Installation Locations:

1.    Overhead Transformers: Lightning arresters are mandated on primary transformers, regardless of their voltage rating. This includes both single-phase and three-phase transformers. The aim is to reduce the risk of damage from lightning strikes, thereby enhancing the safety and longevity of these critical components.

2.    Pad Mount Transformers on Radial Runs: Installation of lightning arresters is required on the first and last pad mount transformer of each radial run, covering both single-phase and three-phase transformers. This strategy ensures the entire run is protected against lightning-induced surges, preventing damage to transformers and associated infrastructure.

3.    Junction Boxes: All single-phase and three-phase junction boxes within the utility’s network should be equipped with lightning arresters. This encompasses distribution boxes across the system, providing protection against lightning-related electrical disturbances to maintain service continuity.

Implementation Guidelines:

1.    The installation of lightning arresters shall be integrated into routine maintenance schedules or as part of new construction projects, ensuring comprehensive coverage.

2.    Lightning arresters must meet industry standards and specifications appropriate for the voltage rating and system configuration, ensuring their effectiveness and reliability.

3.    A record of all lightning arrester installations, including location, type, and installation date, must be maintained for accountability and future reference.

4.    Regular inspections and maintenance are crucial to ascertain the proper functioning of lightning arresters. Damaged or malfunctioning units must be quickly addressed through replacement or repair.

Review and Revision:

The policy will undergo periodic reviews to assess its effectiveness and relevance, incorporating input from relevant stakeholders and aligning with current best practices and procedures.

Compliance:

All personnel involved in the installation, maintenance, and inspection of lightning arresters are obliged to comply with this policy. Non-compliance may lead to disciplinary action to ensure adherence to these critical safety measures.

(04-16-2024)