YH cable (high-strength rubber sheathed flexible cable) is a special cable designed specifically for mobile electrical equipment. Its excellent flexibility, wear resistance, and mechanical stress resistance make it widely used in the industrial field.However, improper use can not only shorten the lifespan of the cable, but also potentially lead to serious safety accidents. Scientific and standardized use of this product is key to ensuring stable equipment operation and personnel safety.

　　1、 Environmental adaptability requirements

The use of YH cables must strictly match their environmental level:

1. Temperature range: It is usually allowed to work in an environment of -40 ℃ to+70 ℃. Ultra low temperatures may cause the outer sheath to become brittle and crack, while ultra-high temperatures can accelerate insulation aging.

2. Humidity and corrosion: Suitable for humid environments, but when exposed to chemical media such as acid, alkali, oil, etc. for a long time, corresponding corrosion-resistant models should be selected, otherwise it may cause swelling or cracking of the sheath.

3. Mechanical protection: Although this product has good resistance to mechanical external forces, it still needs to avoid direct contact with sharp metal parts and high-temperature surfaces. Rubber protective rings need to be installed when passing through holes.

　　2、 Installation and laying requirements

Correct installation is the foundation for ensuring the lifespan of cables:

1. Bending radius: The minimum bending radius during dynamic laying shall not be less than 6 times the outer diameter of the cable, and during static laying shall not be less than 4 times. Excessive bending can compress the internal core and cause insulation damage.

2. Tension control: The traction force must be uniform, and violent dragging is strictly prohibited. The maximum allowable tensile force is ≤ 20N/mm ² (calculated based on the cross-sectional area of the conductor).

3. Anti twisting measures: Cables used for mobile devices should be freely suspended or guided by sliding rails to avoid twisting and knotting, otherwise the internal structure will deform.

4. Grounding requirements: The shielding layer of shielded YH cables must be reliably grounded with a grounding resistance of ≤ 4 Ω to prevent electromagnetic interference from accumulating charges.

　　3、 Electrical parameter requirements

Strictly prohibiting the use beyond specifications is the core of electrical safety:

1. Voltage level: The rated voltage of this product is generally 450/750V. Overvoltage use is prohibited to prevent insulation breakdown.

2. Current carrying capacity limitation: The actual current carrying capacity needs to be calculated based on the ambient temperature and installation method. It is usually used with reduced capacity according to the GB/T16895.6 standard (such as a current carrying capacity of 0.91 times that of 25 ℃ at 40 ℃).

3. Short circuit protection: Short circuit protection devices must be installed in the circuit, and their operating current should match the thermal stability of the cable.

　　4、 Maintenance and scrapping requirements

Regular maintenance can effectively prevent malfunctions:

1. Inspection cycle: Mobile cables need to be inspected daily for appearance, and fixed cables need to be thoroughly inspected at least once a month.

2. Scrap standard: Replacement is required in the following situations:

① The outer sheath is damaged, exposing the shielding layer or insulation layer;

② Insulation resistance<10M Ω (measured with a 500V megohmmeter);

③ The conductor fracture rate exceeds 5% of the total number of wires;

④ Deformation and distortion cannot restore the original state.

3. Storage requirements: Backup cables should be coiled and stored in a dry, dark place to avoid heavy pressure.

　　5、 Safety warning requirements

1. Replacement is strictly prohibited: YH cables are only used for equipment connection and cannot be used as fixed wiring cables (such as BV wires).

2. Length limit: The length of cables used for mobile devices needs to be customized according to actual needs, as being too long can increase voltage drop and winding risks.

3. Certification compliance: Products that comply with national standards (such as GB/T5013) and have CCC certification must be used.

In summary, the requirements for the use of YH cables are a technical system that covers the entire lifecycle of selection, installation, operation, and maintenance. Only by strictly adhering to its environmental adaptability, mechanical protection, electrical parameters, and maintenance standards can its flexible and durable product characteristics be fully utilized to provide safe and reliable power transmission guarantees for mobile devices. Standardized use is not only a technical issue, but also a practical test of corporate safety culture.