What is the minimum power output in kW at which electric boilers require two or more safety valves?

Electric boilers require two or more safety valves when their power output reaches certain thresholds to ensure safety and prevent the risk of overpressure. According to relevant codes and regulations, specifically the ASME Boiler and Pressure Vessel Code, the requirement for multiple safety valves is often linked to the boiler's power output.

The minimum power output at which electric boilers are mandated to have two or more safety valves is 1100 kW. This requirement is based on the principle that higher capacity boilers produce steam at greater rates, leading to increased pressure levels. Implementing multiple safety valves provides an additional layer of safety by ensuring that if one safety valve were to fail, others remain functional, thus reducing the risk of pressure build-up that could lead to dangerous situations.

Understanding these safety requirements is crucial for anyone working with high-pressure boilers to ensure compliance with industry standards and to maintain the safety of the operation.