Sheathed Electric Heater is widely used in industrial oil circuits, water circuits, and gas heating due to its "maintenance-free drainage
and "high safety" features. To ensure long-term stable operation of the equipment and prevent safety accidents, the following detailed safety precautions are provided, divided into three stages: before installation, during operation, and during maintenance. 1. Inspection before installation and commissioning Insulation resistance test (critical) Before installation, it is mandatory to measure the insulation resistance between the heating core and the metal sheath using a 500V megohmmeter. Standard: The insulation resistance in cold state should be ≥ 100
