I. Product Overview
Technical requirements for design, manufacturing, and use of cable sheath protection earthing boxes, direct earthing boxes, cross-connection boxes, and sheath insulation monitoring boxes.
II. Execution Standards
GB11032-2000、IEC6009-4、DL/T401-2002
Section 3: Application Scope
System rated voltage: 10KV
Cable Nominal Cross-Section: 25-800 mm²
Rated Frequency: 50Hz, 60Hz
Protective earth box, direct earth box, cross connection box, and sheath insulation monitoring box are for three-phase common body; please specify single-phase if applicable.
Four, Factory Test (Test Standard JB8144)
DC withstand voltage test: 5.5KV, 1min, no arc, no breakdown.
2. Rated short-circuit current duration: 4S
3. Rated Short-Time Current Withstand (Main Circuit) 20KA
4. Rated Peak Current Tolerance (Main Circuit) 50KA
5. Rated lightning impulse withstand voltage: 185KV
6. Shell withstands mechanical stress test: Shell is free from cracks and has no damage affecting electrical performance.
V. Installation Method
Wall-mounted, buried, bracketed, freestanding, concealed (flush-mounted) types, etc.
Six. Material Used for the Case
Stainless Steel 304, SMC Composite, DMC Glass Reinforced Plastic.
Section 7: Enclosure Operating Environment
Temperature: -25-40℃
Altitude: Below 3,000 meters; please specify if above 3,000 meters.
Protection Levels: IP55, IP56, IP65, IP66, IP68, etc.
Section 8: Installation Process
Strip the cable insulation to ensure the exposed wire length matches the length of the terminal hole.
2) Clear items inside the box.
3) Remove the terminal from inside the box, then crimp the stripped and cut ground cable to the terminal, and insert the terminal into the box's entry port, securing it with screws.
4) Secure the first cable before threading the second cable. Repeat step 3 until all four cables are firmly in place.
5) Fill the rubber gasket between the conduit and cable, securing the cable in the middle of the conduit.
6) Seal the outlet pipe opening with waterproof tape.
7) Shrink the heat shrink tubing on the outlet pipe.
8) Seal both ends of the heat shrink tube with rubber-insulated tape.
9) Cover the waterproof strip with PVC tape, partially overlapping to cover two layers.
10) Clear the items inside the box.
11) Secure the sealing pad and lid in place, ensuring not to tighten the screws all at once. Tighten them in three stages, turning each screw three full turns. Failure to do so may cause the lid to deform.
12) Simply secure the container to the designated location.
