LED EXPLOSION PREVENTION LAMP CHAMBER MEASUREMENT METHOD AND STRUCTURE THEREOF

摘要

PROBLEM TO BE SOLVED: To provide an LED explosion prevention lamp chamber measurement method which can measure a protection grade of explosion prevention and a structure thereof.SOLUTION: An LED explosion prevention lamp 1 includes a case 2 and a light emission unit 3 connected to the case 2. The case 2 comprises: at least one chamber 21; a test part 20 installed on a side face of the at least one case 2; and a sealing component 23 connected to the test part 20. The test part has a test penetration hole 22 for screwing and sealing the sealing component 23 and communicating with the chamber 21. The sealing component 23 includes; a sealing ring 24; an engagement member 25 for penetrating the sealing ring 24 and screwed with a first thread part of the test penetration hole 22; and a cover member 26 for covering the engagement member 25 and screwed with a second thread part of the test penetration hole 22. Therefore, sealing ability and air tightness of the LED explosion prevention lamp 1 can be secured by the test device and the sealing set 23.SELECTED DRAWING: Figure 2