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Lift cable manufacturers
Lift cable manufacturers
The installation of electrical engineering, cable terminal and intermediate connector, power equipment is the important component of power transmission lines, it is the role of distributed cable terminal head cut off external shielding electric field protection cable breakdown, and internal and external insulation and waterproof. In the cable lines, more than 60% of the accidents are caused by the attachment, so the quality of the fittings, the safety and reliability of power transmission plays an important role.
Cable joint points - lift cable manufacturers to explain
The first:
A conductor connecting conductor connection requirements of low resistance and sufficient mechanical strength, the joint cannot appear sharp. Low voltage cable conductors used are crimping, press attention:
1) select the appropriate conductor conductivity and mechanical strength of the connecting pipe;
2) over the pressure diameter and clearance by connecting wire core diameter from 0.8 to 1.4mm;
3) after the joint pressure resistance value should be less than 1.2 times the cross-section of conductor, copper conductor joint tensile strength of not less than 60N/mm2;
4) pressed before the outer surface of the conductor and the connecting pipe inner surface coated with conductive adhesive, and undermine the film with a wire brush;
5) connecting pipe, wire core conductor on the sharp corners, edges, with a file or sandpaper smooth.
Second:
In the semiconductor processing where the body is provided with an inner shielding cable shielding layer, making joints must restore compression joints within the conductor shielding layer, semiconductor shielded cables are to set aside part of, so that the connecting pipe connecting head within the shield can connect with each other, ensure continuity Honai semiconductor, thus the joint over the field of uniform distribution.
Third:
Handle the shield shield is semiconductor semiconductor semi conductive material and cable joint insulation external uniform electric field, with semiconductor shielding, in cable and joint plays a very important role. The outer semiconductor port must be neat and uniform and the insulation also requires smooth transition, and in increasing around the semiconductor band connected with the joint of the cable shielding lapping semiconductor in vitro.
Fourth:
Construction cable stress cone shape reaction, reaction force "accurately in the whole cone, cone potential distribution is equal, in the production of XLPE cable reaction cone, with special cutting tools, can also be heated by fire a cut with a sharp knife, the forming, and the thickness of 2mm glass shaving with sandpaper, finally from coarse to fine grinding, until smooth to.
Fifth:
The metal shielding and grounding metal shielding in cable and joint is the main fault current for transmission cable, electromagnetic interference and electromagnetic shielding on adjacent communication equipment, running state of metal shielding grounding at zero potential in good condition, when the cable fault occurred, it has the ability of transmission circuit the current in a very short period of time. The grounding wire should be reliable welding, metal shield and armored cable with the two ends of the box body is firmly welded, the grounding terminal should be reliable.
Sixth:
Joint sealing and mechanical protection of joint sealing and mechanical protection is to ensure the safe and reliable operation of the joint security. We should prevent the infiltration of water and moisture in the joint, also in the joint position should be a masonry joint protection groove or install cement protection box etc..
Lift cable - the preferred Shanghai Xi Shanghai Cable Co. Ltd. http://www.shhcdl.com
Cable joint points - lift cable manufacturers to explain
The first:
A conductor connecting conductor connection requirements of low resistance and sufficient mechanical strength, the joint cannot appear sharp. Low voltage cable conductors used are crimping, press attention:
1) select the appropriate conductor conductivity and mechanical strength of the connecting pipe;
2) over the pressure diameter and clearance by connecting wire core diameter from 0.8 to 1.4mm;
3) after the joint pressure resistance value should be less than 1.2 times the cross-section of conductor, copper conductor joint tensile strength of not less than 60N/mm2;
4) pressed before the outer surface of the conductor and the connecting pipe inner surface coated with conductive adhesive, and undermine the film with a wire brush;
5) connecting pipe, wire core conductor on the sharp corners, edges, with a file or sandpaper smooth.
Second:
In the semiconductor processing where the body is provided with an inner shielding cable shielding layer, making joints must restore compression joints within the conductor shielding layer, semiconductor shielded cables are to set aside part of, so that the connecting pipe connecting head within the shield can connect with each other, ensure continuity Honai semiconductor, thus the joint over the field of uniform distribution.
Third:
Handle the shield shield is semiconductor semiconductor semi conductive material and cable joint insulation external uniform electric field, with semiconductor shielding, in cable and joint plays a very important role. The outer semiconductor port must be neat and uniform and the insulation also requires smooth transition, and in increasing around the semiconductor band connected with the joint of the cable shielding lapping semiconductor in vitro.
Fourth:
Construction cable stress cone shape reaction, reaction force "accurately in the whole cone, cone potential distribution is equal, in the production of XLPE cable reaction cone, with special cutting tools, can also be heated by fire a cut with a sharp knife, the forming, and the thickness of 2mm glass shaving with sandpaper, finally from coarse to fine grinding, until smooth to.
Fifth:
The metal shielding and grounding metal shielding in cable and joint is the main fault current for transmission cable, electromagnetic interference and electromagnetic shielding on adjacent communication equipment, running state of metal shielding grounding at zero potential in good condition, when the cable fault occurred, it has the ability of transmission circuit the current in a very short period of time. The grounding wire should be reliable welding, metal shield and armored cable with the two ends of the box body is firmly welded, the grounding terminal should be reliable.
Sixth:
Joint sealing and mechanical protection of joint sealing and mechanical protection is to ensure the safe and reliable operation of the joint security. We should prevent the infiltration of water and moisture in the joint, also in the joint position should be a masonry joint protection groove or install cement protection box etc..
Lift cable - the preferred Shanghai Xi Shanghai Cable Co. Ltd. http://www.shhcdl.com