5, the heat should consider safety measures for nitrate, explosion prevention.
Part 6, wiring insulation layer should be placed on the outside, avoid contact with corrosive or explosive media, water; lead wire should be part of the temperature under wiring and the heating load for a long time, Terminal screw fastening should be avoided when overexert.
7, the components should be stored in a dry place, if it is for long-term placement when the insulation resistance is less than 1M, and can be dried in the oven at about 200 ℃ or lower voltage and ohmic heating, until the resumption of insulation resistance.