Cold-Resistant Cables

Short Description:

Cold-Resistant Cables are made from special materials that allow the cables to maintain good flexibility even in very low-temperature environments. These cables feature cold resistance, flexibility, wear resistance, and oil resistance, making them suitable as flexible connection cables for mobile electrical equipment with a rated AC voltage of 0.6/1 kV or below, where cold and oil resistance are required.

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Product Introduction

Selection Guidelines

Classification standard

Installation and Maintenance Precautions

Dimension	Detailed Description
Product Definition	A special type of cable specially developed for low temperature environments, which can operate stably for a long time in a low temperature environment of -40℃ and below. It is specially optimized for low temperature performance of insulation, mechanical properties, flexibility and aging resistance, and is the core basic component for stable power supply and accurate signal transmission in low temperature scenarios such as cold region outdoors, cold storage, polar regions, mines, and new energy.
Core Materials	The core insulation/sheath adopts special cold-resistant polymer materials, the mainstream materials include: cold-resistant modified polyvinyl chloride (PVC), cross-linked polyethylene (XLPE), ethylene propylene rubber (EPR), silicone rubber, fluoroplastic, polyurethane (PUR), etc.; the conductor is oxygen-free copper/tinned copper/aluminum alloy conductor, and high-purity oxygen-free copper conductor is preferred for low temperature scenarios to ensure stable conductivity at low temperatures.
Core Characteristics	1. Excellent low temperature resistance: the long-term allowable operating temperature can be as low as -90℃, the insulation performance and mechanical performance have no attenuation in low temperature environment, no brittleness and no hardening, which is fully suitable for extreme low temperature working conditions; 2. High flexibility and deformation resistance: it still maintains excellent flexibility in low temperature environment, can be laid with an extremely small bending radius, and has excellent bending resistance and fatigue fracture resistance, which is far superior to ordinary cables, and is suitable for mobile laying scenarios at low temperatures; 3. Strong weather resistance and aging resistance: UV resistance, ozone resistance, heat and humidity resistance, salt spray resistance, and the service life of long-term outdoor laying in cold regions can reach more than 15 years, far exceeding that of ordinary cables; 4. Stable electrical performance: high insulation resistance, stable dielectric constant, small dielectric loss in low temperature environment, which can stably transmit power and signals without voltage attenuation and signal distortion; 5. Outstanding safety performance: it can be matched with high flame retardant, low smoke zero halogen and fire resistant structure, no dripping and no toxic gas release during combustion, which fully meets the fire safety requirements of low temperature environment; 6. Chemical corrosion resistance: it can withstand corrosive media such as acid, alkali, oil stain and organic solvent in low temperature environment, which is suitable for low temperature corrosion scenarios such as cold storage, chemical industry and marine engineering.
National/International Implementation Standards	Domestic standards: GB/T 12706 Series Standards for Extruded Insulated Power Cables, GB/T 5013 Series Standards for Rubber Insulated Cables, GB/T 2951 General Test Methods for Cable Insulation and Sheath Materials, MT 818 Series Standards for Coal Mine Cables, GB/T 19666 General Rules for Flame Retardant and Fire Resistant Wires and Cables; International standards: IEC 60502 Specification for Extruded Insulated Power Cables, IEC 60332 Test Methods for Burning Performance of Cables, UL 758 Standard for Appliance Wiring Materials.
Core Application Scenarios	1. Cold region outdoor scenarios: outdoor power supply, photovoltaic power stations, wind power generation, communication base stations, transportation facilities in cold regions such as Northeast China, Northwest China and Qinghai-Tibet Plateau; 2. Low temperature cold storage scenarios: power supply and temperature control signal transmission for food/medical cold storage, cold chain logistics, and low temperature warehousing; 3. Polar and alpine scenarios: power supply for scientific research, military and civil facilities in Antarctic/Arctic scientific research stations and plateau alpine regions; 4. Underground mine scenarios: power supply and signal transmission for low temperature roadways and high-drop shafts in coal mines and metal mines; 5. New energy scenarios: power supply and control signal transmission for wind turbines and photovoltaic power stations in plateaus and cold regions; 6. Special industrial scenarios: power supply and signal transmission for aerospace, military equipment, low temperature test equipment, and chemical low temperature workshops.

Model Selection Module	Core Points	Detailed Description and Red Line Requirements
Core Red Line Principles for Model Selection	Compliance First	1. All model selection must comply with the current national cable standards. For special scenarios such as mines, rail transit, fire emergency, compliant products with corresponding MA/3C/flame retardant and fire resistant mandatory certification must be selected; 2. Non-standard products without test reports and certification are strictly prohibited, especially in extreme low temperature scenarios, which must ensure that the low temperature performance, insulation performance and mechanical performance all meet the standards; 3. The low temperature resistance grade, rated voltage, current carrying capacity and flame retardant grade must be higher than the maximum requirements of the actual application scenario. Low-specification models are strictly prohibited from being used beyond their applicable scenarios.
	Scenario Matching	1. Fully adapt to the minimum ambient temperature, laying method, mechanical external force, fire safety, and signal transmission requirements of the application scenario; 2. For extreme low temperature scenarios, special models with corresponding low temperature resistance grade must be selected; for cold region outdoors, models with weather resistance and aging resistance must be selected; for cold storage scenarios, models with moisture resistance...

Classification Dimension	Sub-category	Core Definition and Characteristics	Typical Model Examples
By Low Temperature Resistance Grade (Core Classification)	Ordinary Cold Resistant Cable	Long-term allowable operating temperature ≥-40℃, suitable for general low temperature scenarios such as outdoor in most northern regions of China in winter and conventional cold storage, with moderate cost and strong versatility	YJV-H, VV-H, KVV-H, YGC-H
	Medium Cold Resistant Cable	Long-term allowable operating temperature ≥-60℃, suitable for low temperature scenarios such as severe cold regions in Northeast and Northwest China, plateau regions, and low temperature cold storage, with excellent low temperature performance, and is the main category for cold region engineering	YJV-MH, VV-MH, KVV-MH, EPR-MH
	Ultra Cold Resistant Cable	Long-term allowable operating temperature ≥-90℃, suitable for extreme low temperature scenarios such as polar regions, alpine plateaus, extreme low temperature tests, military and aerospace, with the highest low temperature performance, and can operate stably for a long time in extremely cold environments	YJV-CH, VV-CH, KVV-CH, SIL-CH
By Core Insulation Material	Cold Resistant PVC Insulated Cable	Uses cold-resistant modified PVC as insulation/sheath material, long-term temperature resistance -40℃~70℃, low cost, strong versatility, suitable for fixed laying in conventional low temperature scenarios	VV-H, KVV-H, BVV-H
	Cold Resistant XLPE Insulated Cable	Uses cold-resistant cross-linked polyethylene as insulation material, long-term temperature resistance -40℃~90℃, excellent insulation performance, large current carrying capacity, strong aging resistance, and is the main category for outdoor power transmission in cold regions	YJV-H, YJV22-H, KVV-H
	Ethylene Propylene Rubber (EPR) Insulated Cold Resistant Cable	Uses ethylene propylene rubber as insulation/sheath material, long-term temperature resistance -60℃~150℃, excellent low temperature resistance, weather resistance and aging resistance, good flexibility, suitable for cold region outdoors, wind power, mining and other scenarios	EPR-H, EPR22-H, KEPR-H
	Silicone Rubber Insulated Cold Resistant Cable	Uses silicone rubber as insulation/sheath material, long-term temperature resistance -60℃~180℃, excellent high and low temperature cycle resistance, flexibility and insulation performance, suitable for extreme low temperature, high frequency bending, precision signal transmission scenarios	YGC-H, KGG-H, YGC-TR-H
	Fluoroplastic Insulated Cold Resistant Cable	Uses polytetrafluoroethylene (PTFE), fluorinated ethylene propylene (FEP) as insulation material, long-term temperature resistance -80℃~200℃, the best low temperature resistance, chemical corrosion resistance and insulation performance, suitable for extreme low temperature, strong corrosion, high frequency signal scenarios	FEP-H, PTFE-H, KFF-H
	Polyurethane (PUR) Insulated Cold Resistant Cable	Uses polyurethane as insulation/sheath material, long-term temperature resistance -50℃~80℃, excellent low temperature resistance, wear resistance and tear resistance, good flexibility, suitable for drag chain, mobile equipment, cold storage and other scenarios	PUR-H, PUR-TR-H
By Structural Characteristics	Non-armoured Cold Resistant Cable	No metal armouring layer, simple structure, convenient laying, low cost, good flexibility, suitable for indoor, cold storage, outdoor trench laying without mechanical external impact	VV-H, YJV-H, KVV-H, YGC-H
	Armoured Cold Resistant Cable	Added steel tape/steel wire/aluminum-plastic composite tape armouring layer, with excellent mechanical impact, compression, tensile and puncture resistance, high protection level, suitable for outdoor direct burial, pipe laying, scenarios with mechanical external force risks in cold regions	VV22-H, YJV22-H, KVV22-H, EPR32-H (steel wire armoured)
	Shielded Cold Resistant Cable	Added copper mesh/aluminum foil shielding layer, with extremely strong anti-electromagnetic interference and anti-radio frequency interference capability, high signal transmission stability, suitable for cold region communication, automatic control, precision instruments, wind power pitch control and other signal transmission scenarios	KVV-HP, YJV-HP, EPR-HP, KGG-HP
	High Flexibility Drag Chain Cold Resistant Cable	Composite structure of multi-strand ultra-fine flexible conductor + high tear resistant cold-resistant insulation + wear-resistant sheath, which can achieve more than 5 million times of repeated bending without fracture, and the minimum bending radius can reach 5 times the cable outer diameter, suitable for high-frequency dynamic scenarios such as cold region wind power, robots, drag chain systems	YJV-TR-H, EPR-TR-H, PUR-TR-H
	Flame Retardant/Fire Resistant Cold Resistant Cable	Matched with high flame retardant low smoke zero halogen sheath/fire resistant mica tape composite structure, the flame retardant grade can reach Class A of GB 31247, and can maintain normal power supply for more than 90 minutes in 950℃ flame, suitable for scenarios with high safety requirements such as cold region rail transit, mines, fire emergency	ZA-YJV-H, NH-YJV-H, ZR-KVV-H
By Rated Voltage Grade	Low Voltage Control Cold Resistant Cable	Rated voltage 450/750V, number of cores ranges from 2 to 61, suitable for cold region industrial control, signal transmission, equipment supporting, and is the most widely used general-purpose category	KVV-H, KVV22-H, KEPR-H, KGG-H
	Low Voltage Power Cold Resistant Cable	Rated voltage 0.6/1kV, 1.8/3kV, number of cores ranges from 1 to 5, conductor cross section 1.5mm²~400mm², suitable for cold region low voltage power supply, equipment power supporting, and is the main category for outdoor power transmission in cold regions	VV-H, YJV-H, YJV22-H, EPR-H
	Medium Voltage Cold Resistant Cable	Rated voltage 6kV, 10kV, 35kV, suitable for cold region medium voltage power supply, photovoltaic/wind power grid connection, underground mine medium voltage transmission. Special medium voltage cable accessories must be matched, with excellent insulation performance and weather resistance	YJV-H-6kV, YJV22-H-10kV, EPR-H-35kV
	High Frequency/RF Cold Resistant Cable	Rated voltage 50Ω/75Ω characteristic impedance, adopts solid high-purity silver-plated copper conductor + low density cold-resistant insulation structure, with excellent high-frequency transmission performance, low attenuation and small standing wave ratio, suitable for cold region 5G communication, radar, satellite navigation and other high-frequency scenarios	SFF-H, SFF-50-H, SFF-75-H
By Laying Method	Fixed Laying Cold Resistant Cable	Conductor is single strand/7 strand hard conductor, stable structure, high mechanical strength, excellent weather resistance, suitable for long-term fixed laying scenarios such as cold region indoor, tunnel, pipeline, direct burial	VV-H, YJV-H, YJV22-H, KVV22-H
	Mobile Laying Cold Resistant Cable	Conductor is multi-strand ultra-fine flexible conductor, excellent flexibility, fatigue fracture resistance, can be bent repeatedly, suitable for cold region equipment movement, drag chain, robot, frequent bending dynamic scenarios	YGC-H, EPR-TR-H, PUR-TR-H
	High Drop/Vertical Laying Cold Resistant Cable	Matched with steel wire armouring + anti-slip structure, excellent tensile and anti-falling performance, low temperature resistance and weather resistance, suitable for high drop vertical laying scenarios in cold region mines and tunnels, and can withstand large axial tensile force	VV32-H, YJV32-H, EPR32-H
	Outdoor Direct Burial Laying Cold Resistant Cable	Matched with steel tape armouring + rodent and ant proof + waterproof sheath composite structure, with a protection level up to IP68, UV resistance, heat and humidity resistance, salt spray resistance, low temperature resistance, suitable for long-term outdoor direct burial laying in cold regions	VV22-H, YJV22-H, EPR22-H
By Application Scenario	General Outdoor Cold Resistant Cable	Designed for conventional outdoor scenarios in cold regions, with excellent low temperature resistance, weather resistance and aging resistance, suitable for general scenarios such as outdoor power supply, communication, transportation facilities	YJV-H, VV-H, KVV-H
	Special Cold Resistant Cable for Cold Storage	Designed for low temperature and humid environment of cold storage, with excellent low temperature resistance, moisture resistance, oil stain resistance, acid and alkali corrosion resistance, suitable for power supply and temperature control signal transmission of cold storage and cold chain logistics	VV-LK, YJV-LK, KVV-LK, EPR-LK
	Special Cold Resistant Cable for Wind Power	Designed for wind power scenarios in plateau cold regions, with excellent low temperature resistance, weather resistance, UV resistance, torsion resistance and fatigue resistance, suitable for power supply and pitch control signal transmission of wind turbines	FDZ-H, FDE-H, EPR-WD, YJV-WD
	Special Cold Resistant Cable for Mine	Designed for low temperature roadways and shafts in underground coal mines, with excellent low temperature resistance, tensile resistance, mechanical impact resistance, flame retardant and explosion-proof performance, suitable for power supply and signal transmission in underground mines	MVV-H, MYJV-H, MKVV-H, EPR-KS
	Polar Ultra Cold Resistant Cable	Designed for extreme low temperature scenarios in polar regions and alpine plateaus, with long-term temperature resistance up to -90℃, excellent extreme low temperature resistance, aging resistance and radiation resistance, suitable for scientific research, military, aerospace and other extreme scenarios	JIDI-H, CH-H, SIL-CH, PTFE-CH

Maintenance Level	Maintenance Items	Execution Cycle	Operation Standard	Abnormal Handling Method
Special Protection During Construction Phase (Core Pre-maintenance)	Cable Incoming Acceptance	When the cable enters the site	1. Check the model specification, low temperature resistance grade, certification certificate and test report of the cable to confirm that it is consistent with the model selection requirements, with focus on checking the low temperature performance test report; 2. Check the appearance of the cable, the sheath is free of damage, cracking, deformation, the insulation layer is intact, and there is no trace of moisture, water ingress or low temperature frost cracking; 3. Test the insulation resistance of the cable with a megohmmeter, the insulation resistance is ≥10MΩ·km, and there is no short circuit or open circuit; 4. For cables used in extreme low temperature scenarios, the special test data of low temperature bending, low temperature impact and insulation resistance must be checked to ensure they meet the standards.	1. If the cable model specification is inconsistent, the low temperature resistance grade does not match, without certification or low temperature performance test report, it is strictly prohibited to enter the site for use, and must be returned and exchanged immediately; 2. If the cable sheath is damaged, the insulation layer is damaged, moisture/water ingress or low temperature frost cracking is found, it is strictly prohibited to use, and must be replaced immediately; 3. If the insulation resistance is not up to standard, short circuit or open circuit is found, it is strictly prohibited to use, and must be replaced immediately.
	Protection During Construction	Throughout the construction period	1. Before cable laying, check that the trenches, pipelines and cable trays of the laying path are free of sharp objects and burrs to avoid the cable being scratched or punctured during laying; 2. During cable laying, it is strictly prohibited to bend, twist or drag the cable with an excessive small bending radius, and it is strictly prohibited to roll or step on the cable, especially in low temperature environment, to avoid brittleness and damage of the cable insulation layer; 3. Before concrete pouring and floor leveling, check that the cable sheath is intact and free of damage, and the fixing is firm. Special personnel shall be arranged for monitoring during the pouring process to avoid damage to the cable by construction machinery; 4. After the cable laying is completed, do a good job of sealing protection in time to avoid moisture, water ingress and low temperature frost damage at the cable ends, and make identification marks for later operation and maintenance; 5. For construction in extreme low temperature environment, thermal insulation protection of the cable must be done well to avoid the cable being frozen and brittle during construction.	1. If the cable sheath is damaged, the insulation layer is damaged or low temperature frost cracking occurs during laying, stop the construction immediately, replace the damaged cable, and it is strictly prohibited to continue to use after repair; 2. If the cable is bent or twisted with an excessive small bending radius, re-lay the cable in a standardized manner immediately, and test the insulation performance to ensure no damage; 3. If the cable is rolled or punctured during concrete pouring, stop the construction immediately, replace the damaged cable, and re-lay it; 4. If moisture, water ingress or frost damage is found at the cable ends, dry and seal them immediately, test the insulation performance, and replace them immediately if unqualified.
Daily Inspection (Winter/Low Temperature Operation Period)	Appearance and Operating Status Inspection	Once a week during the low temperature operation period, once a day in extreme low temperature weather	1. Check the cable laying path, junction box, equipment end, the cable sheath is free of damage, aging, deformation, low temperature frost cracking, and no exposed insulation layer; 2. Check the cable joints, wiring terminals and connectors, no heating, sparking, looseness, oxidation, icing, the seal is intact without damage, and no trace of water ingress or moisture; 3. Check the laying status of the cable, no looseness, falling, excessive bending, dragging, and no risk of being rolled by equipment or vehicles, no snow or ice coverage; 4. Check the operating environment of the cable, no high temperature heat source, open flame, flammable and explosive media, acid and alkali corrosive medium leakage, and no potential safety hazards. The thermal insulation and protection measures for outdoor cables are intact.	1. If slight damage, aging or frost cracking of the sheath is found, mark it immediately, and arrange for professional personnel to repair it after power off, and do a good job of thermal insulation protection; 2. If exposed insulation layer, joint heating and sparking, or serious cable deformation/frost cracking are found, cut off the power and stop the machine immediately, continue to use is strictly prohibited, and arrange for professional personnel to test and replace the cable; 3. If the cable is rolled, excessively bent, dragged, or covered by snow and ice, cut off the power immediately, clear the snow and ice, test the insulation performance and conductor integrity of the cable, and replace it immediately if unqualified; 4. If the cable is close to a high temperature heat source or corrosive medium leakage is found, clean and isolate it immediately, check the cable damage, and replace it if necessary, and do a good job of protective measures.
	Temperature Control and Signal System Inspection	Once a week during the low temperature operation period	1. Check the signal lines of the thermostat, sensor and automation equipment, the connection is firm, no looseness, falling off or icing, the signal transmission is stable, and the temperature control/control data is accurate; 2. Check whether the grounding of the shielding layer is reliable, no looseness, breakage or icing, to avoid signal abnormality caused by electromagnetic interference in low temperature environment; 3. Check the power supply lines of the equipment, the operation is normal, and there is no abnormal heating, noise or icing.	1. If the signal line is loose, falls off or ices up, reconnect it firmly immediately after power off, clear the icing, and test the stability of signal transmission; 2. If abnormal temperature control data or signal interference is found, check the line immediately, test whether the shielding layer grounding is reliable, clear the icing, and replace the shielded cable if necessary; 3. If abnormal heating of the power supply line or abnormal equipment operation is found, cut off the power and stop the machine immediately, check the line fault, and replace the damaged cable.
Regular Special Tests	Insulation Resistance and Earthing Continuity Test	Once before the winter heating season, once after the winter heating season, once a month in extreme low temperature period	1. In the power-off state, use a 500V/1000V megohmmeter to test the insulation resistance between the cable cores and between the cable core and the earth. The insulation resistance of control cables is ≥10MΩ·km, low voltage power cables is ≥10MΩ·km, and medium voltage cables is ≥100MΩ·km; 2. Use an earth resistance tester to test the earthing continuity of the cable shielding layer, armouring layer and earthing terminal. The earth resistance value is ≤4Ω, and the conduction resistance between the shielding layer and the earthing terminal is ≤0.5Ω; 3. The test environment temperature is 20℃±5℃, the relative humidity is ≤80%, and the cable must be fully discharged and dried before the test to ensure the accuracy of the test data. Temperature compensation must be done for tests in extreme low temperature environment.	1. If the insulation resistance is lower than the standard value, check the cause immediately, and test whether there is moisture, damage, aging, water ingress or frost damage; 2. If the insulation resistance drops by more than 30%, arrange for professional personnel to conduct a comprehensive test immediately, and replace the cable if necessary; 3. If the insulation resistance is found to be 0, cut off the power immediately, continue to use is strictly prohibited, check the short circuit point and replace the cable; 4. If the earth resistance exceeds the standard or the shielding layer earthing is invalid, repair it immediately to ensure reliable earthing, and avoid electromagnetic interference, electrostatic accumulation and lightning strike risks.
	Special Inspection of Joints and Terminals	Once before the winter heating season, once after the winter heating season, once a month in extreme low temperature period	1. In the power-off state, check the sealing performance of the cable joints, terminals and connectors, no leakage, cracking, deformation, aging or icing, and the sealant is not invalid; 2. Use an infrared thermometer to test the surface temperature of the joints, terminals and wiring terminals, no abnormal heating, the temperature difference with the cable body is ≤5℃, and no local over temperature; 3. Check the wiring terminals for looseness, oxidation, burning, icing, the tightening torque meets the standard, and no discharge or sparking trace.	1. If the joint seal is invalid, leakage, cracking or icing is found, cut off the power and stop the machine immediately, re-seal and do thermal insulation treatment, and test the insulation performance; 2. If abnormal heating or excessive temperature difference of the joint is found, check the cause immediately, test whether there is virtual connection, oxidation, overload or icing, and re-make the joint or replace the connector if necessary; 3. If the wiring terminal is loose, burnt or iced up, cut off the power and tighten it immediately, clear the icing, replace the damaged terminal, and ensure the reliable connection.
	Current Carrying Capacity and Temperature Monitoring	Once in the middle of the winter low temperature operation period, once every half month in extreme low temperature weather	1. When the cable is running at full load, use an infrared thermometer to test the surface temperature of the cable conductor and outer sheath, arrange test points evenly along the full length of the cable, and focus on testing the joints, turns, densely laid parts, and parts covered by snow and ice; 2. The outer sheath temperature of the cable is ≤ the long-term allowable operating temperature of the insulation material, and no local over temperature point or abnormal temperature rise, and no abnormal heating in low temperature environment; 3. Test the influence of the ambient temperature, laying method, snow and ice coverage on the current carrying capacity, and verify whether the actual operating current of the cable is within the allowable current carrying capacity range.	1. If local over temperature or abnormal temperature rise of the cable is found, check the cause immediately, and test whether there is overload, local short circuit, insulation aging, poor contact, or snow and ice coverage; 2. If the operating current exceeds the allowable current carrying capacity, reduce the load immediately, check the cause of overload, and replace the cable with a larger cross section if necessary; 3. If the overall temperature of the cable is generally over temperature, stop the machine immediately, check the influence of the ambient temperature, laying method, heat dissipation conditions, snow and ice coverage, and optimize the laying and heat dissipation scheme, clear the snow and ice.
Annual Comprehensive Test and Long-term Operation and Maintenance	Comprehensive Electrical Performance Test	Once a year (after the winter heating season)	1. Complete the full set of electrical performance tests of the cable according to the national standard requirements, including core indicators such as insulation resistance, withstand voltage, conductor resistance, capacitance, dielectric loss, and earth resistance; 2. All test indicators must meet the national standard and product technical requirements, and no unqualified items; 3. Compare the test data over the years, analyze the change trend of cable performance, predict the low temperature aging condition, and formulate operation and maintenance and replacement plans.	1. If the test indicators are unqualified, check the cause immediately, and replace the cable if necessary; 2. If the cable performance continues to decline and the low temperature aging trend is obvious, formulate a replacement plan in advance to avoid sudden faults during the winter low temperature operation period; 3. If the transmission performance of the signal control line decreases, check it immediately and replace the unqualified cable.
	Full Life Cycle Ledger Update	Once a year / after each maintenance and replacement	1. Establish a full life cycle operation and maintenance ledger for the cable, recording the cable model specification, low temperature resistance grade, laying date, laying position, test records, maintenance records, replacement records, and scrap records; 2. Update the ledger in time after each test, maintenance, and replacement to ensure the ledger information is complete and traceable; 3. After the annual test is completed, fully update the ledger, analyze the operating status of the cable, and formulate the operation and maintenance, test, and replacement plan for the next year, with focus on the cables in extreme low temperature scenarios.	1. If the ledger information is missing or incomplete, complete it immediately to ensure the operation and maintenance information of all cables is traceable; 2. If the cable operating life is close to the design service life, formulate a replacement plan in advance to avoid extended use; 3. Cables that have been repaired many times and have continuous performance decline shall be included in key monitoring, and scrapped and replaced in advance if necessary.
	Scrap and Replacement Management	Implemented according to actual test results	1. The cable must be scrapped and replaced immediately if any of the following conditions occurs: ① The insulation resistance and withstand voltage test are unqualified and cannot be repaired; ② The outer sheath and insulation layer are seriously damaged, aged, cracked or frost cracked and cannot be repaired; ③ The conductor core is broken or short circuited and cannot be repaired; ④ The operating life exceeds the product design service life, and the performance is seriously reduced; ⑤ Accidents such as short circuit, overload, fire, mechanical rolling, low temperature frost damage have occurred, and the cable performance is damaged; 2. Scrap cables must be marked, strictly prohibited from being reused, and disposed of according to environmental protection regulations; 3. The replacement cable must be a compliant product of the same specification, model and low temperature resistance grade to ensure performance matching, and can be put into use only after passing the test after installation.	1. If the cable meets the scrap conditions, cut off the power and stop the machine immediately, continue to use is strictly prohibited, and arrange for professional personnel to replace it; 2. The replacement cable must be laid, installed and tested in strict accordance with the specifications, and can be put into use only after passing the test. Thermal insulation protection must be done well for extreme low temperature scenarios; 3. Scrap cables shall be disposed of in accordance with environmental protection requirements, and random discarding, secondary sales and non-standard reuse are strictly prohibited.
	Operation and Maintenance Personnel Training and Specification Update	Once a year	1. Conduct training on cable professional knowledge, low temperature environment operation specifications, and safety procedures for operation and maintenance personnel, with focus on training the inspection, testing and emergency handling skills in low temperature environment, who can only take up their posts after passing the assessment; 2. Update the latest national/industry standards and specifications in a timely manner, and synchronously update the operation and maintenance management system and operation standards, with focus on updating the operation and maintenance requirements in low temperature environment; 3. Summarize the annual operation and maintenance experience, analyze the causes of high-frequency faults in low temperature environment, optimize the operation and maintenance plan, and improve the operation and maintenance management level in low temperature environment.	1. Operation and maintenance personnel who fail the training assessment are strictly prohibited from taking up their posts to operate, especially on-site operation in extreme low temperature environment; 2. If the operation and maintenance system is not updated in a timely manner after the standards and specifications are updated, rectify it immediately; 3. For high-frequency faults in low temperature environment occurring in the annual operation and maintenance, formulate a special rectification plan to avoid repeated occurrence.

Polyurethane Cable

Submersible & Waterproof Cables

Cold-Resistant Cables

MICC

Cold-Resistant Cables

Short Description:

Product Introduction

Selection Guidelines

Classification standard

Installation and Maintenance Precautions

Product Inquiry

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Polyurethane Cable

Submersible & Waterproof Cables

Cold-Resistant Cables

MICC

Cold-Resistant Cables

Short Description:

Product Introduction

Selection Guidelines

Classification standard

Installation and Maintenance Precautions

Product Inquiry

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