Multi-function overhead insulated cable suspension clamp. Is a 1-1 for protection (J kv overhead insulated cable in the insulator support of fittings from being struck by lightning burning out. Can also be used for the insulation of cable grounding protection and check electricity, Is 10kv overhead …
Multi-function overhead insulated cable suspension clamp. Is a 1-1 for protection (J kv overhead insulated cable in the insulator support of fittings from being struck by lightning burning out. Can also be used for the insulation of cable grounding protection and check electricity, Is 10kv overhead insulated cable overvoltage limiter, when lighting overvoltage appeared, shall not exceed the specified value between the voltage on both ends of the wire clip, make electrical equipment from over voltage damage; lightning overvoltage, and can make the system quickly returned to normal state.
■1kv/10kv overhead insulated conductor wire clip parameters and applicable scope
■1kv/10kv overhead insulated conductor wire clip parameters and applicable scope
Using high- tech advanced manufacturing technology, in the case of remove the protective cover. Still with super sun, rain, corrosion resistance, weathering properties.
■Overhead insulated wire with the lightning protection works
1, overhead insulated wires in the insulator support at the reason of being struck by lightning, the lightning field, due to the particularity of pole shape and installation location, lightning overvoltage can make the overhead insulated wires on the telegraph pole, in the and insulator support contact with interpretation of induction electric discharge. Strong instantaneous current overhead insulated wire burn out. In thunderstorm season, this
2, overhead insulated wire lightning protection lightning protection principle of the clamp: lightning field, for air insulated wires installed overhead insulated wire after take clamp, when a critical overvoltage but form, overhead insulated wire clamp of lightning protection of xie arc arm through downlink receiving plate, immediately put the induced lightning streamed into the earth. To avoid the risk overhead insulated wires.
3, overhead insulated wire line lightning in a thunderstorm, through its grounding ring and connected to ground wire, which can realize temporary check electrical grounding protection and.
■Installation method
1, according to the cross- sectional area of cable selection adapted to the diameter of lightning protection.
2, overhead insulated wire lightning protection wire clip, it is recommended that the installation on the load side of the insulator.
3, to avoid being struck by lightning cable, each cable should be installed on the telegraph poles overhead insulated wire clamp were expounded.
■Problem solving
1, when there are tall buildings near the poles, whether to support the insulation of the cable insulation load side also install multi-functional avoid clouds wire clip?
A: when lightning development step for short string strike quickly, it is not a single continuous breakdown, nor a single segment of hitting. After take strike leaped over the building roof, side stroke under the roof is often happened. So, when there are tall buildings near the poles, insulated cable load side of the insulator support also install multi- -functional risk avoidance wire clip, in order to ensure to avoid risk.
2, the fog will make from the clouds wire clip on to produce a short circuit?
A: no. According to the regulations of the outdoor distribution safety net distance, charged body 10kv of interval thrown in + 200 mm, this ground wire of interval=(190-200) in mm + downlink receiving plate. To the ground at a distance of h, while (190+190)+h200 mm. Under the heavy fog, atmospheric overvoltage plays a leading role at this time. Normal weather, atmospheric breakdown voltage resistant 6kv/MMT; Heavy fog when the atmospheric breakdown voltage resistance is about 1kv/mm; At this point, risk avoidance clamp and the ground resistance to breakdown voltage= 190*1kV+h*1kV is far greater than 19kV. So 10kv voltage is Can't be breakdown. Is the fog over the ground can't short circuit.
3, why does a wire clip on the cable load side of the insulator support?
A:Is to prevent induction thunder electric wave generated in the user.
■Naming and classification model
I company production of 10 kv overhead insulated cable from the stomach clamp type tag consists of three sets of Numbers or letters. The identification meaning is: