SynC · Topic
These are the standards in the SynC Standards library that cover Grounding. Each one is a complete, plain-language specification: the scope it applies to, the requirements that govern it, and a structured equipment datasheet listing the values a project has to decide — ratings, materials, setpoints, and the standards each is verified against. All of it is free to read without an account and published under CC BY-SA 4.0.
A standard usually carries several topics, so most of the entries below also appear under neighbouring subjects. The topics each one carries are listed on its own page.
Stationary battery systems with chargers providing 24, 48, 125, or 250 VDC control power to switchgear protective relays, breakers, transfer switches, communications, generator starting, emergency lighting inverters, and other critical control loads in substations, generating stations, industrial facilities, and electrical rooms. Covers vented lead-acid (VLA), valve-regulated lead-acid (VRLA), and vented nickel-cadmium (Ni-Cd) chemistries; their chargers; DC distribution; battery monitoring; and the battery room or cabinet. Cross-references the loads they serve (see Low Voltage Switchgear and Medium Voltage Switchgear) and grounding of the DC system (see Grounding And Bonding).
Dedicated indoor electrical rooms and closets housing service entrance equipment, distribution switchgear, switchboards, panelboards, motor control centers, dry-type transformers, automatic transfer switches, indoor standby generators or paralleling switchgear, DC battery systems, and the associated grounding, raceway, and control infrastructure for commercial, institutional, healthcare, higher-education, data center, and industrial buildings. Covers working clearances, dedicated electrical space, headroom, door and egress arrangement, fire-resistance ratings of enclosing assemblies, ventilation and cooling for equipment heat rejection, room illumination, convenience power, drainage and plumbing restrictions, security and access control, equipment anchorage, finishes, and signage.
Grounding and bonding of low-voltage (1000V and below) electrical systems for commercial, institutional, and industrial buildings. Covers the grounding electrode system, grounding electrode conductors, equipment grounding conductors, bonding of metallic systems, separately derived systems, ground bus and ground bars, connections and terminations, and field testing of installed grounding systems.
Factory-fabricated industrial control panels and enclosures that house instrumentation and controls (I&C) equipment for industrial, process, and water/wastewater (WTP/WWTP) facilities. Covers UL 508A listed control panels and enclosures housing programmable logic controllers, remote I/O, control relays, power supplies, network switches, and operator interface devices, rated 1000V and below. Addresses enclosure type rating selection (UL/NEMA Type 1, 3R, 4, 4X, 12), short-circuit current rating (SCCR) determination per UL 508A Supplement SB and NEC Article 409, enclosure sizing and component layout, internal power distribution and control power transformers, power-versus-signal wiring segregation, wire and terminal-block identification, thermal management, grounding and bonding, nameplates, and arc-flash labeling.
Customer-premises telecommunications bonding and grounding for commercial, institutional, and industrial buildings per ANSI/TIA-607-E. Covers the Primary Bonding Busbar (PBB), Secondary Bonding Busbar (SBB), Telecommunications Bonding Backbone (TBB), Telecommunications Equipment Bonding Conductor (TEBC), rack and cabinet bonding busbars and jumpers (RBB/RBJ), bonding grids in equipment rooms, shielded cable plant grounding, surge protection for telecommunications circuits, and grounding of metallic cable shields and outside-plant entrance cables. Coordinates with the building electrical grounding electrode system at the point of connection only.