0
Add your answer:
Earn +20 pts
How do you measure the earth resistance?
megger
What is tower footing resistance?
footing resistance is that resistance which could not harm human body while touching tower...and it is calculated by earth resistance tester
What is allowable resistance of the cable in mergers test?
A good number on a megger test should be around 2 megohms.
What reverse resistance reading should diodes have when under test with an ohmmeter?
Reverse resistance should be infinite.
Why is grounding important?
Every electrical system should be earthed to get a low resistance path for dissipation of current into the earth. Major accidents take place because of improper equipment earthing or leakage current. Earth fault current directly affect the human safety. Earthing should be measured at regular intervals so as to ensure that the resistance of the earth is maintained minimum. Its main purpose is to minimize the risks of fire and shock hazards.
What is the difference between earth resistance and insulation resistance?
insulation resistance can be measured by means of megger, with built in d.c generator. It is measured between the conductor and the earth. earth resistance can be measured by means of earth resistance tester. For good effective earthing, th earth resistance should be of order 0.5 ohm
What is the difference between insulation resistance and earth resistance?
insulation resistance can be measured by means of megger, with built in d.c generator. It is measured between the conductor and the earth. earth resistance can be measured by means of earth resistance tester. For good effective earthing, th earth resistance should be of order 0.5 ohm
What should be the resistance value of healthy earth pit?
what is the resistance value of a healthy earth pit
The resistance of earth wire is?
The recommended resistance that one should strive to obtain is zero.
What should the resistance on a kwikthermT105 thermostat be to know if it is good or faulty?
Resistance power of 20 amps indicate whether it is good or faulty.
What are the properties of earth electrodes?
Earth electrodes have low resistance to earth, provide a stable connection to the ground, and can dissipate fault currents safely. They also need to have good corrosion resistance to maintain their effectiveness over time.
Why must the resistance of an earth wire to an appliance be very low?
since it is a good conductor
What is the resistance between phase and earth?
The resistance between phase and earth typically depends on the specific electrical system and grounding arrangement. In general, it is recommended to have a low resistance between phase and earth for safety reasons, usually in the range of a few ohms to ensure proper grounding and fault protection. It is important to consult local electrical codes and standards for specific requirements.
Which instrunment is used to measure the resistance to earth?
A normal ohmmeter (or multimeter with this feature) should do it.
What makes a good material for a conductor?
A good material for a conductor should have high electrical conductivity to allow the flow of current with low resistance. It should also be ductile and malleable to be easily shaped into wires. Additionally, it should have good corrosion resistance and be cost-effective for practical applications.
What are the ratings and certificates for Earth the Resistance - 2014?
Earth the Resistance - 2014 is rated/received certificates of: UK:15
Why is it important to be good stewards of your earth?
Because you only live once, and you should live your life with good stewardship towards Mother Earth. Also, the earth takes care of you so you should take care of the earth.
