26 mm 2 (10 AWG) ground wire must be used, and in all other markets a 6 mm 2 must be used. In industrial and civil circuit wiring, the stainless steel monitor enclosure device serves as the physical casing for various switches and control components. For field. That's why today we'll break down the life-or-death details of grounding distribution boxes and cable shielding layers using plain language. No textbook fluff – just what actually works in the real world. The. IPMENT, STRUCTURES, ETC. IN ELECTRICAL STATIONS INCLUDING TRANSMISSION AND DISTRIBUTION SUBSTAT GR THAN 8 FT FROM THE FENCE. THE FENCE SHALL BE GROUNDED SEPARATELY FROM THE GRID UNLESS OTHERWISE NOTED ON THE A PROPRIATE PROJECT DRAWING. SEE APPLICATION. nsformers have DYn11 connections. The secondary side is solidly grounded and connected with MV grounding. A ground of all overhead line distribution equipment is always grounded and bonded to cont all be consider as a priority, if not available, then 70 mm2 copper conducto r normal soil condit. The National Electrical Code (NEC) provides clear guidelines for ground wire sizing through Table 250. 122, but understanding how to apply these requirements correctly can make the difference between a safe installation and a costly code violation. Grounding of the units: Attach a ground wire from one of.