I. Regular Inspection: Early Detection and Treatment
1. Visual Inspection: Check the casing weekly for cracks, rust, or deformation, paying particular attention to sealing areas such as the cable inlet and junction box. Remove minor rust promptly and repaint; replace the casing if severely rusted.
2. Seal Inspection: Check the sealing gaskets and rings monthly for aging, deformation, or damage. If any seal problems are found, replace them with the original specifications to ensure a tight seal.
3. Fastener Inspection: Check bolts, nuts, and other fasteners weekly for looseness. If loose, tighten them immediately to prevent the explosion-proof structure from failing.
II. Standard Operation: Avoid Human-Induced Damage
1. Cable Inlet Sealing: Do not use sealing putty, asbestos rope, or other materials to replace the sealing ring. Do not fill the cavity with any substance. The sealing ring and clamping nut at the cable inlet must not be removed.
2. Wire Connection: It is forbidden to combine multiple single-strand wires and then pass them through the single-hole elastic sealing ring into the inlet. Oil stains on the rubber sealing ring must be wiped clean to prevent aging and deterioration.
3. Structural Modification: It is strictly forbidden to arbitrarily modify the structure, components, or internal wiring of the explosion-proof camera. Excess elastic sealing gaskets and metal washers at the inlet and outlet must remain in their factory condition, and the compression nuts must be tightened.
III. Timely Replacement: Ensuring Effective Sealing
1. Seal Replacement: If the seals are aged, deformed, or damaged, they must be replaced according to the original specifications. When replacing, ensure that the seals match the equipment to avoid poor sealing.
2. Housing Replacement: If the housing shows severe corrosion, cracks, or deformation, it must be replaced immediately. When replacing, ensure that the explosion-proof rating of the new housing is consistent with the equipment.
IV. Other Precautions
1. Environmental Adaptability: When used in humid environments, the installation location must be adjusted or the equipment's moisture resistance improved, and dehumidification measures must be taken.
2. Lightning and Interference Protection: Strong and weak current cables must be separated during wiring. Power cables must be kept separate from communication and video cables. Equipment grounding must be secure and reliable; grounding resistance values should be checked regularly.
3. Routine Maintenance: Regularly dust and clean the equipment. Remove explosion-proof cameras, explosion-proof covers, and other components and thoroughly blow away dust. Wipe the lenses with anhydrous alcohol swabs. Check the ventilation, heat dissipation, dust removal, and power supply facilities in the monitoring room.
