JSB/T2379-2016 standard specifies environmental conditions and safety and health, data source: People's Republic of China machinery industry standard JB/T2379-2016 《Metal tubular electric heating element》
5.1.3 Environmental Conditions
a． The altitude does not exceed 1000m
b． The ambient temperature is -20 °C ~ 50 °C
c． The relative humidity of the surrounding air is not more than 90% (when the ambient temperature is 25°C)
d． There is no conductive dust, explosive gas and corrosive gas that can seriously damage metals and insulating materials
e． There are no noticeable shocks and vibrations
If the User has a special request, it may be made in accordance with clause 9.2.
5.1.4 Safety and Health
Elements used for heating in flammable atmospheres are designed with the intention of avoiding explosion accidents
Elements used for heating in pressure media should be designed to avoid pressure relief accidents caused by damage to metal pipes, welds and seals.
For heating elements in toxic and harmful media, consideration should be given to avoiding leakage accidents caused by toxic and harmful media caused by metal pipes, welds and seals.
The housing or coating of elements that come into contact with food and diet should not create various risks harmful to the human diet and should be protected in a reliable and effective manner. Limit requirements for potentially hazardous substances are specified in specific product standards.
