For LED lights installations, the earthing conductor size depends on the total current and fault current requirements. Here are some general guidelines: 1. For LED installations up to 10A: - 1.5mm² (14 AWG) earthing conductor is usually sufficient 2. For LED installations between 10A-20A: - 2.5mm² (12 AWG) earthing conductor is recommended 3. For LED installations above 20A: - 4mm² (10 AWG) or larger earthing conductor may be required However, it's essential to consider the following factors: - Total LED current - Fault current (if applicable) - Distance between LED drivers and earthing point - Soil resistivity (if earthing electrodes are used) - Local electrical codes and regulations
The time value "t" represents the duration of the fault current in seconds. This is the time it takes for the protective device (e.g., fuse, circuit breaker) to clear the fault and interrupt the current. Typical values for "t" are: - 0.5 seconds (500 ms) for fast-acting protective devices - 1 second (1000 ms) for standard protective devices
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YOU ARE DOING A GOOD JOB , MOST OF THE PERSON DOES NOT TOUCH IT
Thanks keep watching ❤️
Thanks for sharing informative material Sir
Thanks and welcome
For home lightning arrestor, what should be the copper wire of down conductor?
Dear it depends upon many factors.
The above formula you have mentioned It is IS standard or British Standard
IS
Thank you for reply, could you please provide earthing conductor formula according IEC or British Standard
DO COMPLETE CALCULATION WITH PICTURE
Sure
LET US KNOW CABLE CONDUCTOR FOR LED LIGHTS INSTALLATIONS
For LED lights installations, the earthing conductor size depends on the total current and fault current requirements. Here are some general guidelines:
1. For LED installations up to 10A:
- 1.5mm² (14 AWG) earthing conductor is usually sufficient
2. For LED installations between 10A-20A:
- 2.5mm² (12 AWG) earthing conductor is recommended
3. For LED installations above 20A:
- 4mm² (10 AWG) or larger earthing conductor may be required
However, it's essential to consider the following factors:
- Total LED current
- Fault current (if applicable)
- Distance between LED drivers and earthing point
- Soil resistivity (if earthing electrodes are used)
- Local electrical codes and regulations
What is the reference of this formula?
This formula is based on the IEC 60364 standard.
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COMPLETE THE VIDEO
Sir If Someone ask me why time short Circuit 0.5 sec why not 0.10 sec what should be response?
All the materials designed for more than 0.5sec solar ,as a thumb rule to avoid the damage we have to maintain 0.5sec
The time value "t" represents the duration of the fault current in seconds. This is the time it takes for the protective device (e.g., fuse, circuit breaker) to clear the fault and interrupt the current.
Typical values for "t" are:
- 0.5 seconds (500 ms) for fast-acting protective devices
- 1 second (1000 ms) for standard protective devices
Sort circuit cureent kese disid kre?
Short circuit given hota h
Unable to understand as nothing is clear about cable ie copper or ALLUMINIUM armoured
Both can be use but the size calculation will be different as described in video kindly watch again ❤️