Difference between waterproof cable and water blocking cable

Waterproof cable: It is to prevent water from entering the interior of the cable structure. The structure and material with waterproof function are adopted on the cable sheath.
Water blocking cable: It is the assessment that allows water to enter the interior of the cable, but it is not allowed to penetrate to the specified length under the specified conditions. Water blocking cable is divided into conductor water blocking and cable core water blocking.
Conductor water blocking structure: Generally, water blocking powder and water blocking yarn are added during the monofilament stranding process between the strands of the stranded conductor. When the conductor enters the water, the water blocking powder or the water blocking yarn inflates with water to prevent the water from penetrating. Of course, the solid conductor has the best water blocking performance.
Cable core water blocking structure: single core cable is more convenient, one or more layers of water blocking tape are wrapped around the copper shield, and then the outer jacket is squeezed. When the outer jacket is damaged and water enters, the water blocking belt expands due to water swelling. The inner and outer surfaces of the water-blocking zone are all cylinders. When the water-blocking zone expands, a water-blocking section is formed quickly, which prevents the further penetration of water. For the three-core cable, it is very difficult for the cable core to completely block water because the three cores The middle gap of the cable core is large and irregular, that is, all the water blocking tapes are filled, and the water blocking effect is also not good. It is suggested that each core should be produced by a single core water blocking structure and then be cabled.

Surge Proof Junction Box

JXHS series Junction Box advanced technology during production, stresses the details during design, implements design standard during processing, and has high consistence of product quality. It has various features such as strong damp proof, anti-corrosion and anti-electromagnetic capacities and high adjustment accuracy, and is suitable for various adverse environments. Its main advantages include:
The product uses own mold to make technologic design, the housing uses aluminum and silicon alloy and upper protrusion and lower sinking structure is used so as to ensure good sealing performance; protective grade reaches IP 68.
Main parts are imported, wiring bar is welded with precise anti-surge electronic components, which can prevent Load Cell damage caused by lightning and power grid surge voltage.
Whole device uses stainless steel grounding bolts to ensure reliable grounding during operation.
Assembly of junction box uses not-loose screws so as to avoid loss during load cell wring.
Wiring board uses combined screws for assembly, which are convenient for removal.
In order to ensure protective effect, force and diameter of tightening parts have introduction.

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SHANDONG JINZHONG SCIENCE & TECHNOLOGY GROUP COMPANY LIMITED , https://www.chinagoldbell.com