Armor cable: It is installed by different material conductors in a metal sleeve with insulating materials, and is processed into a bending solid combination.
Non-armor cable: cables without armor protective layers, from several or several sets of wires in each group of at least two twisted cables, each set of wires insulated, often surrounds a center Twisted. The entire outer bread has a highly insulated coverage layer.
Abstract: Introduce the materials and structures of environmentally friendly mineral insulation fire cables, through designing mineral fire prevention insulating layers, thermosetting polymer protective layers, inorganic fiber filler, low smoke halogen-free silicon porcelain insulation layer, metal armor fireproof layer, fire prevention layer, and metal armor fireproof layer. The composite refractory structure is composed of low -smoke halogen-free environmental protection external care layer, realizing the environmental protection of cable fire resistance and low toxic environmental protection performance, low toxicity, and fire-resistant cable.
Tha an transmission line connection point is a major weak point of inline operation. In the operation of often heat burned, thus causing power outages. The analysis of the wire connection point heating problem, and timely adoption of appropriate preventive measures, will effectively avoid the wire connection point overheating. This causes the wire connection point to burn off the accident. Analyze the causes of wire connection point heating, and understand the theoretical basis for the temperature rise of high-voltage lines. Aig an aon àm, mastering the prevention and solution measures to deal with the connection point heating problem, to ensure the safe and reliable operation of the line has practical significance.
Tha togail càball optic optic air a roinn gu ìre mhòr a-steach do na ceumannan a leanas: ullachadh → Togail Pròiseact Càball Fiber Optic → Fiber Optic Optic Inflic → Gabhail a 'phròiseict.
Tha an zinc oxide arrester uses zinc oxide resistance as the main component, which greatly improves the voltammetric characteristics of the arrester and increases the through-current capability. When the arrester is in normal operation, the voltage flow through the arrester current is only microampere. When the overvoltage is received, the excellent non-linear characteristics of the arrester play a good role.
A lightning arrester is mainly used to protect electrical equipment from lightning intrusion overvoltage and operating overvoltage on its power equipment insulation damage.
The insulation material of wire and cable is an important structure to ensure the proper operation of the conductor. The operating life of the insulation material is an important indicator of the life of the cable. Usually, what are the insulation materials we use for wire and cable?
High-voltage line arrester for 6 ~ 220kV AC transmission lines, is a new type of lightning arrester suspended and installed on the transmission tower.
In the case of high-voltage transmission line construction, many people working on projects often come across high-voltage power cable joints. An-diugh, I would like to discuss the types of high voltage power cable joints and their applications with you. A’ chiad, let’s talk about what high voltage power cable joints are.
Prìomh dhreuchd a tubing crìonadh teas ann an cuairt gus innealan agus cuairtean cudromach a dhìon bho mhilleadh is buaidh. Ged nach eil buaidh shònraichte aige air obrachadh a’ chuairt, gu tric is e am prìomh phuing a bhios a’ dearbhadh soirbheachas no fàilligeadh an dealbhaidh gu lèir. Le leasachadh luath ann an gnìomhachas eileagtronaigeach, tha tuban crìonadh teas lasair-lasair cuideachd do-sgaraichte bhon ghnìomhachas dealanach, feumaidh barrachd is barrachd thoraidhean dealanach a bhith a’ cleachdadh tuban lughdachadh teas lasair-lasair airson dìon. Giullachd lasair-lasair den tiùb crìonadh teas, nuair a thèid ionnsaigh a thoirt air le stòran teine a-muigh, faodaidh e bacadh gu h-èifeachdach, dàil no stad air sgaoileadh lasair, gus buaidh lasair-retardant a choileanadh.
An-dràsta, bithear a’ cleachdadh càbaill os cionn airson dealan a ghiùlan thar astaran fada. Tha càbaill àbhaisteach mar as trice air an neartachadh le stàilinn stiùiridh alùmanum (Acsr). Bho na 1990n, coraichean co-dhèanta fiber carbon (cridhe co-dhèanta stiùiriche alùmanum) air an cleachdadh mar phrìomh bhàr chàbaill. Tha na buannachdan a leanas aig ACCC thairis air stiùirichean traidiseanta.
