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BWZG factory explosion-proof junction box
The BWZG explosion-proof junction box uses an explosion-proof shell to isolate the circuit parts that may produce sparks or arcs from the combustible dust environment or explosive gas mixtures outside the shell, thus achieving the purpose of explosion protection. The dimensions of the explosion-proof joint surface comply with GB3836.2 regulations, and the cable entry device complies with the provisions of Appendix D of GB3836.1-2000.
Classification:
Detailed introduction
1. Overview
The explosion-proof junction box temperature sensor is specially developed by our company for the motor industry. It is a temperature sensor with an explosion-proof junction box, mainly used for temperature detection and control of bearings and coolers in explosion-proof motors. This product has high precision, good stability, and is characterized by shock resistance and durability, widely used in fields such as petroleum, chemical, pharmaceutical, and military industries. For temperature sensors used in nuclear power plant equipment, the lead wire is a special cable for nuclear power plants and holds a certificate of conformity from the National Wire and Cable Quality Supervision and Inspection Center. The shell material is lightweight alloy, with a surface coated with anti-corrosion paint or stainless steel.
Explosion-proof mark: ExdbIIB/IICT6Gb, ExtbIIICT80℃ Db.
2. Model and Specifications
4. Installation, Wiring, and Precautions
4.1 When installing the junction box, check whether the explosion-proof mark on the junction box nameplate matches the installation environment.
4.2 The connecting wire should be selected as copper shielded cable, with a cross-sectional area of no less than 0.2 square millimeters.
4.3 Open the junction box, use a wrench to unscrew the compression nut of the cable entry device, securely connect the cable to the terminal (or terminal block) inside the junction box, then cover the junction box and tighten the screws at the four corners.
4.4 The grounding screw on the junction box must be reliably grounded with a grounding wire.
4.5 During installation, signal transmission wires should be fixed with ties at a distance of no more than 300mm apart. If the signal transmission wire is too long, it can be coiled at an appropriate position; do not throw it around randomly and keep it away from heating equipment.
4.6 The sealing ring in the entry device should be replaced in a timely manner if it becomes aged or deteriorated.
4.7 The upper cover must not be opened in environments with combustible dust present; it is strictly prohibited to open the cover of the junction box while it is energized.
4.8 During maintenance, care should be taken to prevent 'loss of explosion' (such as protecting dust-proof explosion-proof surfaces and paying attention to fastening and rubber sealing rings in the entry device).
4.9 The minimum outer diameter of cables used by users is φ9.
5. Explosion-proof Principle
The BWZG explosion-proof junction box adopts an explosion-proof shell to separate circuits that may produce sparks or arcs from combustible dust environments or explosive gas mixtures outside the shell, thus achieving explosion-proof purposes. The dimensions of the explosion-proof joint surface comply with GB3836.2 regulations, and the cable entry device complies with GB3836.1-2000 Appendix D regulations.
Key words:
BWZG防爆型接线盒
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Nanyang Huaye Explosion Protected Instrument Co., Ltd.
Professional manufacturer of explosion-proof temperature meters and temperature sensors and suppliers of motor supporting instruments
Professional manufacturer of explosion-proof temperature instruments and temperature sensors, as well...
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E-mail:abc@huayex.com
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