Jul. 16, 2025
This standard specifies the requirements for high current water-cooled cables (hereinafter referred to as "water-cooled cables") for industrial electric heating equipment with a rated voltage of 3000V (including 3000V), a current frequency from DC to 10kHz, and a nominal cross-sectional area of 25m-7000mm, including model, specifications, technical requirements, test methods, inspection rules, labeling, packaging, transportation, and storage.
This standard is applicable to water cables for AC and DC steelmaking electric arc furnaces, ladle refining furnaces, submerged arc furnaces, electroslag furnaces, resistance furnaces, Submerged Arc Furnace and water-cooled cables for induction furnaces.
This standard refers to the clauses in the following documents as clauses of this standard. Any referenced document marked with a date shall not be subject to any subsequent amendments (excluding errata) or revisions to this standard. However, parties to agreements based on this standard are encouraged to study whether the latest versions of these documents can be used. For all reference documents without a date, the latest version shall apply to this standard.
GB/T2900.10-1984 Electrotechnical Terminology - Cables (idt IEC 60050 (461); one thousand nine hundred and eighty-four
GB/T2900.23-1995 Electrotechnical terminology - Industrial electric heating equipment (neq IEC60050-841:1983)
GB/T3048.4-1994 Test methods for electrical properties of wires and cables - Direct current resistance test of conductors (neqIEC60885-2)
GB/T4234991 Cold rolled stainless steel and heat-resistant steel strips
GB/T5231-1985 Processing Copper - Chemical Composition and Product Shape (neq TOCT 859:1978)
GB/T557J 1985 Specification for Synthetic Rubber Grades
GB/T5959.2-1998 Safety of Electric Heating Equipment Part 2: Special Requirements for Electric Arc Furnace Equipment
(idt IEC60519-4:1995)
GB/T5959.3-1988 Safety of Electric Heating Equipment Part 3: Induction and Conductive Heating Equipment and
Special requirements for induction melting equipment (eqv IEC60519-3:1985)
GB/T10066.1-1988 General Part of Test Methods for Electric Heating Equipment (eqv IEC60398:1972)
GB/T10066.2-1988 Test methods for electric heating equipment - Induction furnace (eqv IEC60396:1987) - None
GB/T10066.3-1988 Test methods for electric heating equipment 1986) Induction furnace (eqv IEC60646:
GB/T10067.1-1988 Basic Technical Conditions for Electric Heating Equipment - General Part
GB/T10067.2-1988 Basic technical conditions for electric heating equipment - Steel making electric arc furnace
GB12970.2-1991 Electrical Flexible Copper Stranded Wire Part 2: Flexible Copper Stranded Wire
HG/T 2184-1991 Water supply, universal rubber hoses (neq ISO 1403:1986)
JB/T 9691-1999 Method for Model Designation of Electric Heating Equipment Products
YB/T11-1983 Non Embroidered Steel Wire for Springs
The terms and definitions established in GB/T2900.10-1984 and GB/T2900.23-1995, as well as the following, are applicable to this standard.
Water cooled cable: a water-cooled large section flexible current carrier used in industrial electric heating equipment. It is mainly composed of an outer sleeve, soft wire, core tube, differential spring, clamp, end joint, protective ring and other components selected and combined.
Outer sleeve: A synthetic rubber tube with a reinforced fabric layer that can withstand cooling water pressure and mechanical stress during operation.
Soft wire: Layered weaving or multi strand twisting of enameled wire with a diameter of 0.51mm.
Core tube: A water-cooled cable with a nominal cross-sectional area, which supports and positions soft wires and bears the tensile force of the water-cooled cable connection part and flexible tubular products or other structures.
Differential spring: A non-magnetic stainless steel component used to connect the core tube and end connector, which serves to smooth out and reduce the bending stress experienced by water-cooled cables during operation.
Clamp: A clamp made of non-magnetic stainless steel and copper material, with a locking device, used to secure the outer sleeve and/or protective ring.
End connector: electrode, commonly known as cable head, made of brass, purple copper or oxygen free copper according to user requirements, with surface passivation or tin plating treatment.
Protective ring: A synthetic rubber ring that is inserted into the outermost layer of the water-cooled cable to reduce external wear and buffer oscillation.
Thermal protection: Wrap high-temperature resistant asbestos tape around the outer thermal protection layer of the water-cooled cable.
Geometric average radius: The average radius of the soft conductor layer in the cross-section of a water-cooled cable.
Minimum curvature radius: The maximum allowable curvature radius for water-cooled cables when bent by external forces.
Coreless cable structure: a water-cooled cable structure that relies solely on the rotation of multiple conductors without the support and positioning of a core tube.
Bundle type: A water-cooled cable structure that uses multiple strands of flexible wires or multiple strands of flexible wires with spaced insulation, twisted at a certain spiral angle or wrapped in a single layer outside the core tube.
Concentric: A water-cooled cable structure in which multiple soft wires are wound in multiple layers at a certain spiral angle around a core tube.
Flame retardant type: a water-cooled cable structure with a thermal protection layer on the outer surface.
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The 5 ton electric arc furnace for steel-making is a special purpose equipment that makes ordinary steel, quality carbon steel, alloy steel and non-corrosive steel with electric arc as heat source and scrap steel (iron) as raw material.
15-ton electric arc furnace is used for the short-process steelmaking process, using 100% scrap steel or scrap steel + molten iron (pig iron), or scrap steel + sponge iron (DRI) as raw materials for steelmaking.
The 30-ton AC electric arc furnace is used to melt scrap steel to produce steel. Electrical energy is used to melt scrap steel. An arc forms between the charged material and the electrode.
30 Ton electric arc furnace is used for steelmaking short process smelting, using 100% scrap steel or scrap steel + molten iron (pig iron), or scrap steel + sponge iron (DRI) as raw materials for steelmaking.
The 50-ton ultra-high power electric arc furnace (50TUPH EAF) adopts ultra-high power, high impedance technology, bottom tapping technology (ETB), furnace wall oxygen oil burner and furnace door carbon-oxygen gun technology.
DC electric arc furnace is an electric arc furnace supplying electric energy with DC power supply. There is only one electrode on the top of the DC arc furnace, which is the negative electrode, and the bottom electrode is the positive electrode.
Electric arc furnaces are used to melt scrap steel for steel production. Electrical energy is used to melt scrap steel. An arc forms between the charged material and the electrode. The heat generated by the arc melts the scrap.
Electric arc furnace steel making is a steelmaking method that uses the thermal effect of electric arc to heat the charge for melting.
Ultra-high power electric arc furnace mainly changes the arc characteristics of high voltage and long arc to the arc characteristics of high current, low voltage and short arc
1 ton electric arc furnace is used for melting steel and titanium scrap metal. The principle of electric arc furnace is based on the generation of direct current, which converts electrical energy into heat energy through electrodes to melt the metal.
The closed pig iron furnace (submerged arc furnace iron making) is a non-blast furnace iron making method. Under the premise of guaranteeing the power supply, it is easy to solve the problem by using the reducing agent required by the submerged arc furnace iron making.
The main mechanical device design of Sanui ferroalloy refining furnace combines China's national conditions and draws on international advanced technologies such as Demark and Pyremate.
The Ferronickel submerged arc furnace is a special submerged arc furnace used for smelting nickel-iron alloy. Its main function is to add nickel ore, carbonaceous reducing agent (such as coke) and limestone and other raw materials into the furnace in a certain proportion
The main mechanical device design of Sanui ferrosilicon furnace combines China's national conditions and draws on international advanced technologies such as Demark and Pyremate.
The main mechanical device design of Sanui high carbon ferrochrome furnace combines China's national conditions and draws on international advanced technologies such as Demark and Pyremate.
Industrial silicon submerged arc furnace is an important equipment in silicon ore processing, playing a key role in the silicon industry.
The manganese silicon alloy furnace is mainly used to smelt silicon-manganese alloy, which is an alloy containing silicon and manganese.
The design of the submerged arc furnace main mechanical device by Sanui is based on China's national conditions and draws on international advanced technologies such as Demark and Perlmutter.
Submerged electric arc furnace is mainly used for reducing and smelting raw materials such as ore, carbonaceous reducing agent and solvent. It mainly produces ferroalloys such as ferrosilicon, ferromanganese, ferrochrome, ferrotungsten, silicon-manganese alloy, etc.
Titanium slag production adopts titanium slag electric furnace (circular furnace and rectangular furnace according to its shape) smelting process.
The LF 20 T ladle refining furnace has the functions of arc heating under normal pressure, argon blowing and stirring at the bottom of the ladle, and reducing slag making in the ladle.
LF ladle refining furnace is a bottom-blown argon ladle furnace with three-phase submerged arc heating under normal pressure. It is a device for refining molten steel in a ladle.
VD vacuum refining furnace is a commonly used refining process equipment, mainly used for deoxidation, impurity removal and other operations of molten steel, so as to obtain high purity, low impurity content of high quality steel.
VOD vacuum refining furnace has multiple functions such as vacuum degassing, oxygen blowing decarburization, vacuum charging, argon blowing stirring, non-vacuum temperature measurement sampling, wire feeding, etc.
The cast steel melting induction furnace has outstanding advantages in heat penetration or melting soft magnetic alloys, high resistance alloys, platinum group alloys, heat-resistant, corrosion-resistant, wear-resistant alloys and pure metals.
Metal silicon smelting furnace is a metal silicon medium frequency melting furnace, which consists of furnace body, water and electricity introduction system, furnace tilting device, etc. It has fast melting temperature rise, easy to control furnace temperature and high production efficiency.
Medium frequency induction furnace mainly used for melting steel, alloy steel, special steel, stainless steel, and can also be used for melting and casting non-ferrous metals such as copper, aluminum, lead, zinc, etc. The customized range of induction furnaces sold by Sanrui ranges from 0.1 tons to 10 tons.
Medium frequency induction furnaces are mainly used for melting steel, alloy steel, special steel, stainless steel, and can also be used for melting and casting non-ferrous metals such as copper, aluminum, lead, and zinc.
Medium frequency aluminum melting furnace is used for melting and heating aluminum, scrap aluminum, aluminum ingots, and aluminum alloys; The melting capacity ranges from 100KG to 3000KG.
An induction furnace is an electric furnace that uses the induction electrothermal effect of the material to heat or melt the material. The main components of an induction furnace are sensors, furnace body, power supply, capacitors and control system.
The 3-ton medium frequency coreless induction furnace adopts a 6-phase 12-pulse double rectifier control system. A 2000KVA special rectifier transformer is used for the 2000KW medium frequency power supply.
The conductive arm of an electric arc furnace (EAF) is primarily composed of the front electrode conductive arm holder, a water-cooled clamping ring, the arm body, and the rear conductive copper plate.
The scrap charging basket of the electric arc furnace is mainly used for loading and conveying raw materials such as scrap steel into the electric arc furnace for smelting.
There are many insulation links between the EAF electrode holder and the conductive cross arm body, which greatly simplifies the cconductive cross arm structure and is a new type of electrode arm on the ultra-high power arc furnace.
Generally, the furnace cover of the electric arc furnace adopts the tubular water-cooled closed tube furnace cover structure.
The electrode lifting mechanism of electric arc furnace is composed of conductive cross arm and electrode column device.
Forged copper tile is one of the main accessories in submerged arc furnace (silicon metal furnace, calcium carbide furnace and iron alloy furnace). It generates heat energy due to passing through large current at high temperature, and is easy to be damaged due to poor working environment.
The furnace cover lifting and rotating device consists of a furnace cover lifting mechanism, a rotating mechanism and a rotating frame.
Submerged arc furnace pressure ring is used to monitor the change of air pressure in the furnace in real time, and adjust the air pressure automatically or manually according to the preset parameters to ensure the stability of air pressure in the furnace
Submerged arc furnace water-cooled Roof is an important part of submerged arc furnace (also known as electric arc furnace, calcium carbide furnace or mining furnace), which is mainly used to close the top of furnace body and bear the high temperature and pressure in the furnace.
Short network bus systems), also known as high current line, refers to the general term of the carrier fluid from the secondary outlet terminal of the transformer to the electrode (including the electrode).
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