47results about How to "Does not affect insulation" patented technology

An insulating and flame-retardant EPDM rubber hose composition of the present invention is characterized in that it comprises, in parts by weight: EPDM5890F, 100 parts; kaolin, 2-6 parts; zinc oxide, 3-8 parts; stearin Acid 1‑3 parts; Paraffin, 2‑5 parts; Antiaging agent MB, 1‑3 parts; Carbon black SP6400A, 50‑70 parts; Flame retardant, 130‑190 parts; Paraffin oil, 10‑30 parts; Sulfur, 1-2 parts; calcium oxide, 10-15 parts; accelerator 1.6-3 parts; the accelerator includes 0.5-0.8 parts of BZ accelerator, 0.7-1.2 parts of TRA accelerator, 0.2-0.5 parts of DM accelerator and 0.2-0.5 parts of accelerator TT; the flame retardant is 80-100 parts of aluminum hydroxide, 20-40 parts of zinc borate, 10-20 parts of antimony trioxide and 20-30 parts of decabromodiphenyl Another object of the present invention is to provide a method for preparing an insulating flame-retardant EPDM rubber hose composition, which satisfies the mechanical strength requirements of the rubber under the premise of satisfying the electrical insulation and insulation resistance of the vulcanized rubber.

The invention proposes a municipal garden power cable, which includes a conductor, and the conductor is covered with a layer of insulator. There are bowl-shaped claw petals arranged around the circumferential direction of the tear-proof sliding sleeve, and the bowl-shaped claw petals are several and are arranged at intervals along the length direction of the tear-proof sliding sleeve. The invention has the advantages of strong grip and adhesion, and is suitable for power supply of electrical equipment on shrubs, trees and other garden plants.

The invention relates to a combined electrode column of a vacuum arc extinguishing chamber which overcomes the problems of lower flow capacity and weaker heat radiating capability which may seriously reach the vitrification temperature of epoxy resin to cause major accidents in the traditional sealing electrode column. The combined electrode column is characterized in that epoxy resin perfusion points are arranged in the mutual connecting positions of an upper shielding ring, an upper insulating barrel, an upper wire outlet end, a lower insulating barrel and a shielding electrode; pre-mixed epoxy resin and a solidifying agent are perfused for firmly connecting the shielding electrode, the lower insulating barrel, the upper wire outlet end, the upper insulating barrel and the upper shielding ring together to form an outer cover of the electrode column; the vacuum arc extinguishing chamber is assembled in the outer cover of the electrode column; and the conductive connection of the electrode column is realized through a movable contact, a spring touching finger and a lower wire outlet end. The combined electrode column has the advantages that the manufacturing technology of the electrode column is simplified; the insulating capability of the electrode column is enhanced; the manufacturing cost of the electrode column is reduced; once the vacuum arc extinguishing chamber self has a quality problem, only the vacuum arc extinguishing chamber needs replacing; an outer electrode column still can be used continuously; and therefore, the installation and the replacement of the vacuum arc extinguishing chamber are convenient.

The invention discloses an attachment-type insulator body cleaning device, and relates to the technical field of maintenance of electrical equipment used in transformer substations. The attachment-type insulator body cleaning device comprises an insulator body, a driving cleaning unit and a follow-up cleaning unit; the driving cleaning unit comprises a support ring, a screw rod and a screw barrel; the support ring encircles the middle part of the insulator body and is connected with the insulator body in a rotary manner; the screw rod is fixedly arranged on the outer side surface of the support ring and is arranged in a manner of being vertical to the axial direction of the insulator body; the screw barrel is in threaded connection with the screw rod; the screw barrel is arranged on a base in a rotary manner; a screw barrel driving motor, two rollers, a roller driving motor and a speed-changing gear box are arranged on the base; the two rollers are symmetrically arranged about the screw rod; the speed-changing gear box is connected with the output end of the roller driving motor; the follow-up cleaning unit comprises a cross beam, of which the middle part is fixed on the base; and the cross beam is uniformly provided with hairbrushes which are separately matched with umbrella skirt-shaped clearances of the insulator body. The attachment-type insulator body cleaning device can rotate along the radial direction of the insulator body to clean the surface of the insulator body; the cleaning effect is good; and the labor intensity of transformer substation maintenance personnel is lowered.