I have 100 amp service to my shop and the mains are tripping with an estimated 60% load.
Can the mains be weak and need replacing?
1. Load could be unevenly distributed onto one line of your 2line single phase system,
2. Main Breaker could be faulty and need of replacement.
3. Have your local electrician ensure that your service is compliant.
4. If you find half your shop is working then the utility supply transformer could be faulty as well.
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