// CODE SNIPPET
(B) Common Signal Grounding Wire
Related Code Sections
(B) Special Occupancies, Common Signal Grounding Wire
Common signal grounding wires (i.e., the chassis ground for single-ended transmission) shall be permitted to be used between appliances all located ...
National Electrical Code 2020 of Minnesota > 5 Special Occupancies > 517 Health Care Facilities > 517.82 Signal Transmission Between Appliances > (B) Common Signal Grounding Wire
184.108.40.206 Single- And Multiple-Station Alarms and Household Fire Alarm Systems,
Where common wiring is employed for a combination system, the equipment for other than the fire alarm system shall be connected to the common wiring ...
National Fire Alarm and Signaling Code 2016 of Minnesota > 29 Single- And Multiple-Station Alarms and Household Fire Alarm Systems > 29.7 Equipment Performance > 29.7.7 Combination System > 220.127.116.11
27.5.4 Public Emergency Alarm Reporting Systems, Wired Network Systems
Where common-current source systems are grounded, the resistance of the ground shall not exceed 10 percent ...
National Fire Alarm and Signaling Code 2016 of Minnesota > 27 Public Emergency Alarm Reporting Systems > 27.5 Alarm Processing Equipment > 27.5.4 Wired Network Systems
250.58 Wiring and Protection, Common Grounding Electrode
Where an ac system is connected to a grounding electrode in or at a building or structure, the same electrode shall be used to ground conductor ...
National Electrical Code 2020 of Minnesota > 2 Wiring and Protection > 250 Grounding and Bonding > 250.58 Common Grounding Electrode
450.5 Equipment for General Use, Grounding Autotransformers
Grounding autotransformers covered in this section are zigzag or T-connected transformers connected to 3-phase, 3-wire ungrounded systems ...
National Electrical Code 2020 of Minnesota > 4 Equipment for General Use > 450 Transformers and Transformer Vaults (Including Secondary Ties) > 450.5 Grounding Autotransformers