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The design and manufacture of fluorescent lamps meet the requirements of GB3836-2000 and other standards, and can work reliably under the following conditions:
a. The altitude does not exceed 2000m;
b. ambient temperature -20 °C ~ +40 °C;
c. The relative humidity of air is not more than 90%;
d. No significant shaking and severe shock vibration occasions.
1.2 Model Meaning 
1.3 The technical parameters of fluorescent lamps are shown in Table 1. 
2. Product Structure 2.1 The fluorescent lamp is composed of a lamp body, a ballast and a junction box. The outer shell of the lamp is formed by die casting of ZL102 cast aluminum alloy. It has sufficient mechanical strength and good heat dissipation conditions. The transparent glass tube is made of toughened glass. High light rate. 30~40W single and double tube lamps adopt energy-efficient and cold-start ballasts, which can ensure normal start-up and work under conditions of low temperature and large power fluctuations. Fluorescent lamps use air self-cooled ballasts with low temperature rise and high light efficiency.
2.2 The overall form of the fluorescent lamp is a quick-pull core type. When the inspection and maintenance are completed, only the side cover of the small barrel needs to be opened, and the spring will automatically eject the small cover. At this time, the starter seat is pulled out, and the lamp tube can be taken out and the lamp tube can be replaced. After inserting directly.
2.3 Fluorescent lamps can be equipped with emergency devices according to the requirements of the advocacy. The emergency device is a maintenance-free nickel-cadmium battery pack that is automatically charged under normal power supply conditions. When the power is turned off, the emergency light is automatically turned on.
3, fluorescent lamp dimensions, installation methods and weight 
4. Installation, use and maintenance 4.1 Before installation Check whether the installation accessories are complete, and whether the technical parameters and applicable scope meet the site requirements.
4.2 When installing, pay attention to the cable from the outlet, metal gaskets, seals into the wiring chamber in turn, and then press the threads of the outlet, so that the cable must not loosen.
4.3 Wiring: Different lead colors of fluorescent lamps are distinguished by different colors. Wiring should be clear when wiring, according to Figure 2 wiring. 
4.4 The installation wiring should be firm and reliable, and the internal and external grounding of the fluorescent lamp before use must be good and reliable.
4.5 Check all the fastening bolts of the explosion-proof joints before operation, and tighten them to prevent loosening.
4.6 During the maintenance, the power supply of the pre-stage must be disconnected before the cover can be opened and repaired when the electrical components inside the housing are not energized.
4.7 The explosion-proof surface shall be properly protected from bumps, scratches and cleanliness. If any, the explosion-proof surface may be repaired according to the relevant provisions of explosion protection.
4.8 Overhaul should be painted on the flameproof surface 204-1 displacement rust preventive oil.
4.9 Non-professionals are strictly prohibited from opening and closing inspections
5. Ordering Information When ordering, specify the complete type, name, rated voltage, rated power, and order quantity of the fluorescent lamp.
For example: BYD51-2×40W double tube flameproof fluorescent lamp 220V, 2×40W, 2
1. Product Overview 1.1 Scope of Application and Use BYD51 series flameproof fluorescent lamps (hereinafter referred to as fluorescent lamps) are mainly used in places with Class II B Class T4 and below explosive gas mixtures for ambient lighting purposes. This series of fluorescent lamps has the advantages of compact structure, small size, light weight, beautiful appearance, easy installation, safety and reliability, and is an ideal lighting fixture for petrochemical enterprises.