Provincial Electricity Authority (PEA) recommends the following methods for installing a leakage circuit breaker: 1. It has the Thai Industrial Standards (TIS) mark as a certification. TIS 909-2005 for Residual Current Circuit Breakers with Overcurrent Protection Devices (RCBO) TIS 2452-2017 for Residual Current Circuit Breakers (RCCB) without Overcurrent Protection Devices TIS 2955-2019 Leakage circuit breakers for DC loads such as electric vehicles (EVs) 2. Must have a leakage current rating of no more than 30 milliamperes (mA) to prevent danger from electric shock. 3. Must be installed with a ground wire. The ground wire will help conduct the leakage current to the ground without causing harm to the person touching the equipment and help the overcurrent/leakage protection device to work effectively. Source: Thai News Agency
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