Cable yjv-0.6 / 1kv-4 * 120 + 1 * 70 What does it mean?
"Electrical design of civil buildings," 8.10.13; steel cable bridge straight section length of more than 30m, aluminum or glass fiber reinforced plastic cable bridge length of more than 15m, should be set up expansion joints. Cable bridge across the building deformation joints, should be set compensation device. The telescopic section is set for temperature change; the compensating device is to prevent settlement at the deformation.
Cable trench as a power construction project should be cable trench construction construction design, cable trench construction program, according to the previous design requirements and programs in order to develop cable trench construction quality acceptance procedures
