Avoid the aging and damage of cables to have a good operating environment

To avoid cable aging and damage to have a good operating environment Cable trenches, cable tunnels should have good drainage facilities, such as set up shallow drains, water collection wells, and can effectively drowning, if necessary, set automatic start and stop pumping device to prevent Collect water and keep the interior dry. The longitudinal drainage slope of cable trenches and tunnels should not be less than 1% to 2%, and should be at least greater than 0.5% to prevent the entry of water, corrosive gases or liquids and flammable liquids or gases. Cable trenches, cable tunnels. The cable tunnel should be naturally ventilated, but when the normal cable load makes the air temperature in the tunnel higher than 40 °C ~ 50 °C, natural ventilation and mechanical exhaust ventilation can be used for ventilation. The fan of the ventilation system shall be linked with the fire detector to ensure that the ventilation is automatically stopped when a fire occurs in the tunnel. The cable tunnel shall not be used as the air inlet of the ventilation system.

Completely closing the cable also makes it impossible to perform normal inspections of the cable and cannot detect cable faults in time. In addition, there must be a sound environment to prevent broken cables from causing accidents.

Sinotruk is China's first heavy truck manufacturer, produced China's first heavy truck in 1960.

In October 2006, the Sinotruk was selected as China top ten brand.

Sinotruk's goal is to become the world leading heavy duty truck business, dedicated to provide users with cleaner, more energy efficient, more secure, more comfortable transport products.

Sinotruk specializes in R&D and manufacturing of heavy trucks and related major assembly parts. Products include truck and truck chassis (total weight over 14 tons), semi-trailer (quasi-trailer total quality over 12 tons), dump trucks and all kinds of special vehicle chassis and so on. The main products include HOWO, Steyr King, Steyr and the Yellow River series, with more than 2,000 models, Have the largest models in China, the product can be applied to different areas of heavy truck market. The company is widely used in the infrastructure, construction, container transport, logistics, mining, steel and chemical industries...

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