Earthing Details as is – Free download as Word Doc .doc /.docx), PDF File .pdf), Text File .txt) or read online for free. We REMEDIES EARTHING SYSTEMS PVT. LTD, entered the earthing & lightning industry in the early part of the ‘s much before the technological revolu on. IS Code of practice of earthing. IS Code of practice for the protection of building and allied structures against lightning.
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The scope of this specification covers the supply, installation and testing and earthing system of the entire installation and for lightning protection. Skip to main content. Code of practice of earthing.
How to Determine Correct Number of Earthing Electrodes (Strips, Plates and Pipes) – part 2
Code of practice for the protection of building and allied structures against lightning. Earthing System The earthing system shall comprise of earth electrodes at substation and other convenient places, with an interconnecting earth grid.
The earth electrodes shall be in conformity with IS of plates or pipes of GI with test links, internal connecting leads, earthing mixture of salt, charcoal, etc. The number of each electrodes shall be determined from measurement of the earth resistance which finally should not exceed 1 ohms.
IS / | Electrical Notes & Articles
The earth conductors shall be of GI earthimg minimum cross section as sq. As far as possible, all earth electrodes shall be interconnected to form an earthing grid, by means of earth conductors. All joints in the grid shall be welded or riveted. All cables and conduits shall have continuously run earth wires of specified gauges, securely fastened to the main earthing grid. The hardware used shall be galvanized steel or brass.
Earth conductors on wall, structures shall be installed with proper clamps and saddles. Earth conductors when crossing through walls shall be passed through GI pipes.
The layout of the earth electrodes and earthing conductors shall be first approved by the Authorities before commencing the work. Similar motors, DBs wiring conduits shall have earthing GI wires of appropriate cross section. Lightning Protection The lightning protection system shall comprise of lightning earthing terminals, roof conductors, down conductors, test links and earth electrodes.
Each down conductor shall have a separate earth electrode of GI pipe as per IS The number of down conductors and earth terminals shall be determined from the Risk index as per IS Water, steam and other warthing pipes shall not be used for interconnections.
IS 3043: Code of practice for earthing
Earthing and Lightning Protection. Connecting Methods of Electrical Earthing or Grounding.
Mechanical Ductwork, Grilles And Diffusers.