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
III. Application Scope
System rated voltage: 10KV
Cable Nominal Cross-Section: 25-800 mm²
Rated Frequency: 50Hz, 60Hz
Protective Earth Box, Direct Earth Box, Cross-Connected Box, and Sheath Insulation Monitoring Box are three-phase common bodies; please specify if single-phase.
4. Factory Test (Test Standard JB8144)
DC High Voltage Test: 5.5KV, 1 minute, 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 free of cracks and damage that affects electrical performance.
Section 5: Installation Method
Wall-mounted, buried, bracketed, floor-standing, concealed (flush-mounted), etc.
Section 6: Material of the Enclosure
Stainless Steel 304, SMC Composite, DMC Fiberglass.
Section 7: Environmental Conditions for the Enclosure
Temperature: -25 to 40℃
Altitude: Below 3,000 meters; please specify if above 3,000 meters.
Protection Class: IP55/IP56/IP65/IP66/IP68 and so on.
Section 8: Installation Process
Remove the cable insulation so that the exposed wire length matches the length of the terminal socket holes.
2) Clear items inside the box.
3) Remove the terminal block from inside the box, then crimp the stripped and cut ground cable to the terminal block. Next, insert the terminal block into the box's entry port and securely fasten it with screws.
4) Secure the first cable before threading the second, then repeat step 3 until all four cables are firmly fastened.
5) Fill in the rubber strip between the conduit and the 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 onto the conduit.
8) Seal both ends of the heat shrink tube with rubber insulating tape.
9) Wrap PVC tape over the waterproof strip, partially overlapping to cover two layers.
10) Clear items inside the box.
11) Secure the sealing pad and lid in place, ensuring not to tighten the screws all at once. Instead, tighten them in three stages by turning each screw three times. Failure to do so may cause the lid to deform.
12) Simply secure the box to the designated location.
