Keywords: resistance furnace, furnace, basic drawing, furnace shell, electric control,

　　eleven principles of installation of resistance furnace

　　1. before installation, first check whether it meets the requirements according to the basic drawing.

　　2. Check whether the furnace accessories are complete. Whether there is damage during transportation, whether the furnace lining is cracked and collapsed, and the electric heating elements are short-circuited and separated from bricks.

　　3. Before the resistance furnace is dried, use a multimeter to measure the resistance between the electric heating element and the furnace shell, and no short circuit is allowed. After drying, use a 500V megohmmeter to measure the cold state insulation resistance value not less than 0.5M & Omega;.

　　4. When the working voltage of the resistance furnace exceeds 36V, there should be a good grounding device.

　　5. The exposed live part outside the furnace shell and the transmission device should be protected. In order to ensure safe and reliable operation, necessary protection measures should be set, such as overcurrent relay, pressure relay and automatic circuit breaker.

　　6. electric control and temperature control should be arranged on one side of the furnace and should not be too far away from the furnace. the rear door of the control cabinet should be more than 600mm away from the wall and the component plate bracket should be fixed with anchor bolts.

　　7. All kinds of gas and waterways should be painted with different colors according to regulations to show the difference.

　　8. Flammable or explosive sources should be placed in a dedicated safe isolation room.

　　9. the well-type resistance furnace is generally installed in the pit, and the elevation of the furnace cover is about 500mm on the ground.

　　10. Furnace main loop cables and thermocouple compensation leads shall be laid in the trench with a cover plate on top.

　　11. After installation, oven according to the oven process specified in the product specification.

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