1. The shell adopts explosion -barrier protection method, and the explosion isolation is the highest level in the protection of electrical equipment. 2. The shell is made of national standard aluminum alloy ADC12 cast. All explosion -proof combined plane accuracy in the explosion cavity is RA ≤ 6.3, length L≥25.0mm, gap IC ≤ 0.15mm, and the thickness of the shell is ≥4mm. Anti -impact ability: 7J. 3. Transparent parts (lens) use tempered glass to resist 4 scorched ear shocks. 4. Internal ignition of non -explosive performance requirements: Test gas H2, concentration of 37.0 (V/V)%, initial pressure: 0kPa, test initially 5 times. No explosion. 5. Introduce the performance requirements of the device sealing: Tighten the presses tightly with 10.0N.M torque, and apply 24.0nm torque to the pressing nut to be damaged. Drops are not allowed; 8.0mm in diameter is 6h for 160N on the core rod, and the displacement must not exceed 6mm. 6, transparent thermal drama variant performance requirements: After the lamp is stable, the transparent part is sprayed with water with a temperature of 10 ° C and a diameter of 1mm, and it is not allowed to crack. 7. Requirements for heat-resistant and cold-resistant performance: Place lamps into an environment with a relative humidity of 90%and a temperature of 95 ° C for 28 consecutive days, remove it at the environment temperature 24h, and then put it in an environment of -30 ° C for 24h. After the test, the sealing rings and adhesion of epoxy resin are sealing and cables. 8. All connectors of the lamps are made of stainless steel 304 materials, spray anti -corruption outdoor powder on the surface of the shell, and the anticorrosive grade WF2.