Use of Steel Cables to Ensure Electrical Safety?
Pursuant to Section 79 of the National Technical Regulation on Electrical Safety (Promulgated together with Circular 39/2020/TT-BCT in 2020, effective June 1, 2021), the following provisions are stipulated:
Use of Steel Cables
- The minimum permissible distance between steel cables (guy wire, hauling cable) and the conductor of an energized line is specified as follows:
| Working Voltage (kV) | Minimum Permissible Distance (m) |
| From 01 to 35 | 2.5 |
| Above 35 to 110 | 3.0 |
| Above 110 to 220 | 4.0 |
| Above 220 to 500 | 6.0 |
- If the guy wire can move closer to the energized conductor than the distance specified in Clause 79.1, a cable brace must be used to pull the guy wire sufficiently away from the conductor. The steel cable (hauling cable) must be arranged so that, even if it breaks, it cannot swing towards the energized conductor.
Respectfully!
Answer key for the Online Quiz Competition on Understanding the 70-Year History of the Vietnamese Health Sector in 2025
What are sample greetings for relatives working in the medical sector on the Vietnamese Doctors' Day in 2025 in Vietnamese?
What is the template for the speech on Vietnamese Doctors' Day (February 27, 2025)?
What is the sample Article celebrating the 70th Anniversary of Vietnamese Doctors’ Day (February 27) in 2025?
What is the sample script for the Program for Vietnamese Doctor's Day on February 27, 2025?
What is February 27? What is the lunar date and day of the week for February 27, 2025?
What are congratulations for Vietnam Doctors' Day (February 27) in 2025 in Vietnamese?
What is the sample script for the program celebrating Vietnamese Doctors' Day (February 27, 2025)?
Which types of cancer are not required a referral letter in Vietnam in 2025?
What is the template for follow-up appointment slip in Vietnam according to Circular 01/2025/TT-BYT?
