1.Components are allowed to work under the following conditions:
A Air relative humidity is not greater than 95%, no explosive and corrosive gas.
(except explosion-proof heaters)
BThe operating voltage should not be greater than 1.1 times times the rated value, and the housing should be effectively grounded.
CInsulation resistance ≥1mω dielectric strength: 2KV/1min.
2, electric heat pipe should be well positioned and fixed, effective heating zone must be all immersed in liquid or metal solids, strictly prohibited air burning.
When it is found that there is scale or carbon on the surface of the pipe body, it should be cleaned and reused in time to avoid the lover heat dissipation and shorten the service life.
3, heating easy to melt metal or solid nitrate, alkali, bitumen, stone wax, etc., should first reduce the use of voltage, waiting for the media to melt before rising to the rated voltage.
4, heating air when the components should be cross evenly arranged, so that the components have good heat dissipation conditions, so that the air flowing through can be fully heated.
5, heating nitrate should consider safety measures to prevent explosion accidents.
6, the wiring part should be placed outside the insulation layer, to avoid contact with corrosive, explosive media, moisture, lead wiring should be able to withstand the wiring part of the temperature and heating load for a long time, wiring screws should avoid excessive force when fastening.
7, components should be stored in the dry place, if the long-term placement of insulation resistance is less than 1mω, can be dried in the oven around 200 ℃, or reduce the voltage electrified heating, until the restoration of insulation resistance.
8, Electrothermal tube outlet end of the magnesium oxide powder, in the use of the site to avoid contaminants and water infiltration, to prevent the occurrence of leakage accidents
