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.
Section II: Execution Standards
IEC60364 International Standard, GB16895 International Standard
III. Application Scope
System rated voltage: 10KV
Cable Nominal Cross-Section: 25-800 mm²
Rated Frequency: 50Hz, 60Hz
Protective earthing box, direct earthing box, cross-connection box, and sheath insulation monitoring box are for three-phase common body; please specify if single-phase is required.
Four, Factory Test (Test Standard JB8144)
DC Withstand Voltage Test: 5.5KV, 1min, no arc, no breakdown.
2. Impulse Voltage Test: Peak 10KV, 10 times each for positive and negative poles, no arc-over, no breakdown.
3. Insulation resistance test between the copper nose and the housing: Not less than 20MΩ.
4. Copper nose contact resistance test: Not greater than 20uQ.
V. Installation Method
Wall-mounted, buried, bracketed, freestanding, concealed (flush-mounted) types, etc.
Section 6: Material Used for the Housing
Stainless Steel 304, SMC Composite, DMC Glass Reinforced Plastic.
Section 7: Environmental Conditions for the Enclosure
Temperature: -25-40℃
Altitude: Below 3,000 meters; please specify if above 3,000 meters.
Protection Grades: 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) Clean out the contents inside the box.
3) Remove the terminal blocks inside the box, then crimp the stripped and cut ground cable to the terminal blocks. Next, insert the terminal blocks into the entry port of the box and secure them with screws.
4) After securing the first cable, thread the second cable through, repeat step 3 until all four cables are firmly secured.
5) Fill the rubber strip between the conduit and the cable, securing the cable in the middle of the conduit.
Seal the cable exit with waterproof tape.
7) Shrink the heat shrink tubing on the outlet pipe.
8) Seal both ends of the heat shrink tube with rubber-insulating tape.
9) Cover the waterproof belt with PVC tape, partially overlapping to cover two layers.
10) Clear items inside the box.
11) Secure the sealing pad and lid in place, ensuring that the screws are not tightened all at once. Tighten them in three increments, turning each screw three times. Failure to do so may cause the lid to warp.
12) Simply secure the case to the designated position.
