Yes! * NEC 250. Tell us what you're thinking... we care about your opinion! There is a distinct difference between grounding and bonding. Spacing & Interconnecting Grounding Electrodes, Installation & Grounding Of Lightning Arresters/Surge Protection Devices (SPDs), Conventional Lightning Protection Systems Hardware, Rule 10-706, NFPA 780, UL 96A. This bonding jumper would be installed if the raceway were nonmetallic. google_ad_client = "ca-pub-8084219556731616"; Thankfully, this has improved during the last few revisions to Article 250. Typical commercial electrical systems are grounded systems. It comments, or concerns, please write to sales @ mindconnection.com. This refers to items not directly associated with the electrical system, such as metal frames of buildings, metal gas piping, metal water piping, and similar metallic materials. for grounding conductor enclosures and equipment in or on that same Most This definition was expanded in the NEC to include bonding conductors as these conductors are often 20 ft (6 m) or longer as used in NEC Chapter 8. CEUs are granted by the Engineering Institute of Canada. Successful completion of this course qualifies delegates to receive a certificate of course completion with indicated CEUs. Our Grounding and Bonding and the NEC Training 12-Hour Live Online Course Is Founded On Article 250 of The National Electrical Code. An electrician makes sure that all electrical raceways, panelboards, and other electrical equipment are prop- erly grounded and bonded in conformance to the NEC. "Ground-fault current path." Chapter 8 provides the requirements for communications systems. Specific reference is made in NEC 250.30 for separately derived systems and in NEC 250.102(C) for services. The appendices provide mostly reference information. Parts of 250 apply to various aspects of grounding. and "all of Proper grounding and bonding is important for personnel protection, as well as for compliance with OSHA 29 CFR 1910.304(g) Grounding. The discussions on this issue during the NEC 2002 revision process Without proper electrical grounding and bonding, sensitive electronic equipment is subjected to destruction of data, erratic equipment operation, and catastrophic damage. A good reference for understanding why these would One of the most important AND least understood sections of the NEC is the section on Electrical Grounding. was on how to address the concern that the NEC is "too We could easily address 10 more "top tips" for Article 250. International Codes (if applicable to the installation). ungrounded systems. What does bonding (bonded) mean and what does NEC article 250 say about it? regarding the National Electrical Code. Our course will cover grounding fundamentals, identify which grounding system tests can prevent safety and operational issues at your facilities and details regarding which tests can be conducted while the plant is in operation versus which tests require a shutdown will be discussed. For motor load calculations, refer to Article 430. Don't ground where you should bond. on the pervasiveness of confusion and the potential costs of same. L1W3V4 Within the system, some things are grounded… some things are bonded. The knowledge acquired in this course will enable the participant to apply correct electrical installation procedures according to the NEC, effective cabling and state-of-the-art technologies available for the protection of equipment and circuits. The requirements are located in Part III of National Electrical Code (NEC) Article 250—specifically, 250.32. System Charging, CEC 10-1108 Conductors Used With Neutral Grounding Devices, Grounding Emergency Supply Systems (Generators & Motors), Emergency Supply Grounding, 3 And 4 Pole ATS Systems, Power From Two Sources With Neutral Grounded In One Location, Multiple Emergency Power Supplies Grounding, Generators, Generator Disconnects Emergency Loads & Other Loads, Means Ensuring Continuity At Service Equipment, Interlocking Armor Of MC Cable Tech 90 Cable, Electrical Shock/Severity Of An Electrical Shock, Grounding/Bonding Myths & Fatal Consequences, Effective Grounding Fault Current Path- Diagram, Star Point Grounding- Petrochemical Industry, Industrial Automation Wiring, Bonding & Grounding, Grounding & Bonding AC Power Distribution System With Master Control Relay, Bonding To Racks/Cabinets In The Telecommunications Industry, Grounding Options, New Bonding Conductor From Inverter, PV Array/AC Service Equipment/Generator/Inverter/Battery System, PV Arrangement/PV Inverter & Service Equipment Grounding Electrode System, Renewable Energy Source/ DC Disconnect/Inverter/Utility Disconnect, Isolated Grounding Subsystem- Rule 10-904, Isolated Bonding Conductors Serving A Receptacle, Isolated Grounds With & Without Metallic Conduits, Signal Reference High Frequency Subsystems, Signal Reference Grounding Systems For ADP High Frequency Equipment, Design & Installation Of A Signal Reference Grid, SRG For Sensitive Electronic Equipment Grounding, Power Supply Installation & Placement For ADP/Computer Room Power Center, Susceptibility Of Components & Electronic Circuits, Grounding Connections/Twin Axial & Coax Cable, Proper Bonding & Grounding For PLC Applications, Grounding Systems For Programmable Controllers, Grounding For Better Communications (Less Noise) With PLC, Formation Of Ground Loops/Multiple Loops In Instrumentation Grounding, Grounding Of Shielded Standard Cable & Cables Equipped With Inner Shields, Typical Single Point Ground Network For A Control System, Recommended Process Automation Grounding Scheme (Typical CCR Or PIB), Lightning Protection Subsystem Diagram- Rule 10-706/CAN/CSA-B72. Study specialized technical articles, electrical guides, and papers. connect the equipment grounding conductor(s) and the The rest of 250.24 details requirements for We can present this Grounding and Bonding and The NEC - Section 250 to your electrical engineering and maintenance staff, through our Live Online Training Platform, tailored to your specific equipment and requirements. These components are installed by other trades. Bonding and grounding requirements overlap somewhat, but they all have a common interest – that of preventing electrical shocks and electrical fires. See also Figure 250.1. The discussions on this issue during the NEC 2002 revision process was on how to address the concern that the NEC is "too complicated" (as if electricity is simple?) For the most part, these building components become grounded and bonded to the electrical system by chance. Figure 3 below illustrates a main bonding jumper that is installed at the service equipment and a system bonding jumper that is installed for separately derived systems. It describes a conductor used to bond metallic parts of services and separately derived systems together on the supply side of an overcurrent device. and other equipment, and Effective ground-fault current path. This interactive 12-hour live online instructor-led Grounding and Bonding and the NEC Training course takes an in-depth look at Article 250 of the National Electrical Code (NEC) and is designed to give students the correct information they need to design, install and maintain effective electrical grounding and bonding systems in industrial, commercial and institutional power systems. The registration fee to attend this live online training course is $499 + GST/HST. See Figure 1 below which shows two metal boxes bonded together with the metal raceway installed between the two boxes. variations). Does the NEC refer to grounding incorrectly in any of its articles? google_ad_slot = "4369167888"; However, it’s divided into 6 and "all of the related information should be in one place" (which would be fine if every application were identical). Electrical code expert Mike Holt discusses terminating the grounding electrode conductor and 2011 Code compliance with 250.24(A)(1). 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