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Causes Of Wire And Cable Damage In Winter And Preventive Measures
- Jun 10, 2018 -

In winter, many construction workers will find that when laying and installing electric wires and cables, they often find that some wire and cable products with good quality often cause stiffening of the wires and insulation and the outer cover is detached and damaged. Many construction workers think that it is the wire and cable products themselves. There have been quality problems, and cable manufacturers have also insisted that products have been tested at the factory and are qualified products, often leading to misunderstandings between the parties.


In fact, it was not the quality of the product itself that caused the problem but it was due to the cold winter. The outer sheath of wire and cable products is mostly ordinary plastic (PVC) or rubber. When they are in sub-zero temperatures, they will become hard and the entire wire and cable product line will become hard and brittle, resulting in a slight external force on the skin. Under the fall will appear damaged. In winter, especially in the northern regions, the outdoor temperature is often below zero, and the surface temperature may be lower. Therefore, if the wire and cable products are placed outdoors or directly on the surface, the outer skin of the product may fall off. So, how can we prevent the wire and cable from falling off in winter? Take the following measures from all stages -

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1. Shipment: When the product is shipped to the transportation tool, warming and protection measures are required. For example, use a closed transportation tool to prevent the product from being directly exposed; give the product a cushion, such as bedding or other soft foam; hold gently when loading, and do not rough load, and avoid bending the product. Big.


2. When arriving at the destination or construction site, it is advisable for product suppliers to station personnel to supervise and prevent rough handling behavior during product unloading.


3. Storage: It is best to store the product indoors. At the same time, store a layer of insulation on the surface of the storage, such as wood, bedding, foam, etc., to prevent the product from freezing and damp, and to prevent the product from contacting the ground directly. Cable skin scratch phenomenon, gently handle.


4. When the product is installed and installed: It is best to choose to operate under warm temperatures in the middle and afternoon hours. If there are conditions, use a heater and other equipment to warm up the product in advance before use to allow the product to achieve the best performance. If it is buried in the ground, it can be covered with a protective layer in advance in the cable trench, such as cloth, foam. If it is wearing a pipe, it must be ensured that the inside and outside of the pipe are smooth beforehand, so that the electric wire will not be scratched. Iron pipes must pay particular attention to the selection of quality qualified iron pipes. The poor quality of the iron pipes may have a large number of sharp protrusions, which may cause scratches on the outer wires of the wires.


5, Puguang brand low-temperature cable, in strict accordance with the national standard "GB/T2951.14-2008" test requirements for testing, placed in the environment below minus 35 °C 16h, and then the mechanical properties of the test, its repeated bending and bending ,Extensive and tensile test of insulation and jacket, pass rate of 100%, Puguang low-temperature cable has strong low temperature performance, in the cold external environment, insulation and sheathing of the skin can still be guaranteed No cracks, no fractures.


In winter, many construction workers will find that when laying and installing electric wires and cables, they often find that some wire and cable products with good quality often cause stiffening of the wires and insulation and the outer cover is detached and damaged. Many construction workers think that it is the wire and cable products themselves. There have been quality problems, and cable manufacturers have also insisted that products have been tested at the factory and are qualified products, often leading to misunderstandings between the parties.

 

In fact, it was not the quality of the product itself that caused the problem but it was due to the cold winter. The outer sheath of wire and cable products is mostly ordinary plastic (PVC) or rubber. When they are in sub-zero temperatures, they will become hard and the entire wire and cable product line will become hard and brittle, resulting in a slight external force on the skin. Under the fall will appear damaged. In winter, especially in the northern regions, the outdoor temperature is often below zero, and the surface temperature may be lower. Therefore, if the wire and cable products are placed outdoors or directly on the surface, the outer skin of the product may fall off. So, how can we prevent the wire and cable from falling off in winter? Take the following measures from all stages -


1. Shipment: When the product is shipped to the transportation tool, warming and protection measures are required. For example, use a closed transportation tool to prevent the product from being directly exposed; give the product a cushion, such as bedding or other soft foam; hold gently when loading, and do not rough load, and avoid bending the product. Big.


2. When arriving at the destination or construction site, it is advisable for product suppliers to station personnel to supervise and prevent rough handling behavior during product unloading.


3. Storage: It is best to store the product indoors. At the same time, store a layer of insulation on the surface of the storage, such as wood, bedding, foam, etc., to prevent the product from freezing and damp, and to prevent the product from contacting the ground directly. Cable skin scratch phenomenon, gently handle.


4. When the product is installed and installed: It is best to choose to operate under warm temperatures in the middle and afternoon hours. If there are conditions, use a heater and other equipment to warm up the product in advance before use to allow the product to achieve the best performance. If it is buried in the ground, it can be covered with a protective layer in advance in the cable trench, such as cloth, foam. If it is wearing a pipe, it must be ensured that the inside and outside of the pipe are smooth beforehand, so that the electric wire will not be scratched. Iron pipes must pay particular attention to the selection of quality qualified iron pipes. The poor quality of the iron pipes may have a large number of sharp protrusions, which may cause scratches on the outer wires of the wires.

Contact: Sheng Cable

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