Installation precautions

1. Location Selection：

   • Explosion proof distribution boxes should be installed at a certain distance from the dust source to reduce the possibility of dust entering the distribution box.
   • The installation location should consider the convenience of operation and daily maintenance.

2. grounding protection：

   • Explosion proof distribution boxes must be grounded for protection to ensure the safe operation of electrical equipment.
   • During the installation process, it is necessary to ensure good contact between the distribution box and the ground, and to use appropriate grounding devices.

3. safety distance：

   • According to the specifications and requirements of the dust explosion-proof distribution box, a certain safety distance should be maintained from other electrical equipment to avoid safety hazards.

4. Installation specifications：

   • Comply with relevant installation rules and standards to ensure the correctness and safety of installation.
   • Use appropriate tools and equipment to avoid injury to installation personnel.

5. Explosion proof surface treatment：

   • Before tightening the box cover, a layer of rust inhibitor with a thickness of 0.1-0.3mm should be evenly applied to the explosion-proof surface of the box to achieve anti-corrosion and rust prevention effects.
   • When tightening the box cover, the specified torque should be used to tighten all screws in a cross, symmetrical, slow, and even manner.

Precautions for use

1. Pre-operation check：

   • Before performing any operation, the dust explosion-proof distribution box must be thoroughly inspected according to the requirements of the operation manual.
   • Check the integrity of the circuit to ensure that all insulators are intact.
   • Check whether there is combustible dust inside or around the box.
   • Check if the grounding between the electrical box and other places is good.
   • Check whether all electrical components inside the electrical box are consistent with the installation requirements in the operation manual.

2. Prohibited matters：

   • It is prohibited to install wires, electrical components, lightweight sockets, etc. without authorization to prevent accidental operation from causing sparks.
   • Prohibit the use of non specialized electrical components such as cable clamps and simple plug connections.
   • It is prohibited to cut wires or components directly during equipment operation to avoid causing arc sparks.

3. Equipment maintenance：

   • Regularly maintain and inspect explosion-proof distribution boxes to ensure their complete functionality.
   • Regularly clean the dust and dirt of the explosion-proof distribution box to maintain its sealing performance.
   • Check the condition of the wires and clips, and replace any damaged wires and clips.
   • Check if the control switch can move freely to ensure it does not get stuck.
   • Check if the panel buttons can be easily pressed.

4. Fire extinguishing measures：

   • When a fire occurs in a dust explosion-proof distribution box, the power source that caused the fire must be quickly cut off and sufficient fire extinguishers must be used to extinguish the fire.
   • During firefighting operations, all water inlets must be closed.

In summary, the use and installation of dust explosion-proof distribution boxes in cement plants need to strictly comply with relevant regulations and standards to ensure the safe and stable operation of equipment and the safety of employees' lives.