How to make earth pit
1. Excavation on earth for a normal earth Pit size is 1.5M X 1.5M X 3.0 M
2. Use 500 mm X 500 mm X 10 mm GI Plate (Plate may be use as big as possible to contact more and more area of Earth for low resistance & best result)
Join EEE Made Easy Telegram channel
3. Make a mixture of Wood Coal Powder Salt & Sand all in equal part
(a) Wood Coal Powder use as good conductor of electricity, anti corrosive, rust prove for GI Plate for long life.
(b) Salt use as electrolyte to form conductivity between GI Plate Coal and Earth with humidity
(c) Sand has used to form porosity to cycle water & humidity around the mixture
4. Put GI Plate (EARTH PLATE) of size 500 mm X 500 mm X 10 mm in the mid of mixture
5. Use Double GI Strip size 30 mm X 10 mm to connect GI Plate to System Earthling
6. It will be better to use GI Pipe of size 2.5″ diameter with a Flange on the top of GI Pipe to cover GI Strip from EARTH PLATE to Top Flange
7. Cover Top of GI pipe with a T joint to avoid jamming of pipe with dust & mud and also use water time to time through this pipe to bottom of earth plate
8. Maintain less than one Ohm Resistance from EARTH PIT conductor to a distance of 15 Meters around the EARTH PIT with an other conductor dip on the Earth at least 500 mm deep.
9. Check Voltage between EARTH PIT conductor to Neutral of Mains Supply 220V AC 50 Hz it should be less than 2.0 Volts
Read: Difference between earthing and grounding|
Join EEE Made Easy Whatsapp Channel
Read More on Electrical Wiring
- Electrical Wiring Systems- Tree, Distribution
- Types of Electrical wiring
- IS 732- Code of Practice for Electrical Wiring Installations IS 732-1989
- [PDF]IE Rules|Indian Electricity Rules 1956
- Indian Electricity Rules MCQ|IE Rules Questions
- [Latest PDF] Electricity Act 2003|Indian Electricity Act 2003 PDF
- Ceiling Rose|Types, Price,Design Installation Electrical Ceiling Rose|IS 371- Bureau of Indian Standards 1999
- Wiring and Earthing MCQ- Electrical Engineering MCQ
- 7 Steps to Make Electrical Extension Box|How to make an extension wire box
- [PDF]Syllabus Junior Instructor Electroplater|669/2023 Syllabus
- KSEB- Kerala State Electricity Board|KSEB AE Electrical Interview
- [Set3]AE KSEB Interview Questions|Basic Electrical Engineering Interview Questions
- [Set2]AE KSEB Interview Questions|Basic Electrical Engineering Interview Questions
- AE KSEB Interview Questions|Basic Electrical Engineering Interview Questions
- [New Book List]Assistant director industries and commerce Books Based on New Syllabus
- [PDF]Assistant Engineer Electrical Harbour Engineering Question Paper |123/2023 Question paper & Answer Key