Which Article of the NEC Covers Burglary System Wiring?
The National Electric Code (NEC) is a comprehensive standard that outlines the safety requirements for electrical wiring and equipment in the United States. When it comes to burglary system wiring, it’s essential to know which article of the NEC covers these specific installations. In this article, we’ll delve into the NEC’s requirements for burglary system wiring and provide a detailed answer to the question at hand.
Which Article of the NEC Covers Burglary System Wiring?
Article 725 of the NEC covers the installation of Burglar Alarm and Watchman-Type Protective Signaling Systems. This article provides specific requirements for the wiring and installation of these systems, including the use of insulated conductors, grounding, and bonding.
What is a Burglar Alarm and Watchman-Type Protective Signaling System?
A Burglar Alarm and Watchman-Type Protective Signaling System is an electrical system designed to detect and signal the occurrence of a burglary or unauthorized entry. These systems typically consist of sensors, alarm panels, and communication devices that transmit signals to a central monitoring station or a local authority.
Key Requirements for Burglary System Wiring
Here are some key requirements for burglary system wiring outlined in Article 725 of the NEC:
• Insulated Conductors: Burglary system wiring must use insulated conductors that are suitable for the operating voltage and current of the system. The conductors must also be rated for the environmental conditions in which they will be installed.
• Grounding and Bonding: The NEC requires that burglary system wiring be grounded and bonded to prevent electrical shock and ensure safe operation. Grounding and bonding connections must be made to a grounding electrode system or a grounding bus.
• Cable Trays and Racks: Cable trays and racks used for burglary system wiring must be designed and installed to prevent damage to the conductors and to ensure safe access for maintenance and repair.
• Concealment: Burglary system wiring must be concealed from view to prevent tampering and to ensure the integrity of the system. Concealment methods include routing the wiring through walls, ceilings, and floors, or using enclosures and conduit.
• Junction Boxes and Fittings: Junction boxes and fittings used for burglary system wiring must be suitable for the operating voltage and current of the system. They must also be designed and installed to prevent water and dust from entering the enclosure.
• Pull and Junction Boxes: Pull and junction boxes used for burglary system wiring must be designed and installed to prevent water and dust from entering the enclosure. They must also be suitable for the operating voltage and current of the system.
Table 1: NEC Requirements for Burglary System Wiring
| Requirement | Description |
|---|---|
| Insulated Conductors | Use insulated conductors suitable for operating voltage and current |
| Grounding and Bonding | Ground and bond the system to prevent electrical shock |
| Cable Trays and Racks | Design and install cable trays and racks to prevent damage and ensure safe access |
| Concealment | Conceal the wiring from view to prevent tampering |
| Junction Boxes and Fittings | Use suitable junction boxes and fittings for operating voltage and current |
| Pull and Junction Boxes | Design and install pull and junction boxes to prevent water and dust entry |
Conclusion
In conclusion, Article 725 of the NEC covers the installation of Burglar Alarm and Watchman-Type Protective Signaling Systems, including the wiring and installation requirements. By understanding the key requirements outlined in this article, electrical contractors and installers can ensure that these systems are installed safely and in compliance with the NEC. Remember to always consult the NEC and relevant local regulations before installing any electrical system.
