Flexible cords and cables used to connect the moving parts of turbines shall be.

Flexible cords and cables used to connect the moving parts of turbines shall be.

• A. Suitable for extra-hard usage
• B. Identified as hard service cord
• C. Listed as for outdoor use
• D. All of these

Answer: (D)

Flexible cords used with moving turbine parts face constant bending, vibration, heat, oil, and weather. To hold up in that demanding environment, the cord needs several protections: extra-hard usage indicates it can handle severe flexing and harsh conditions; identified as hard service cord shows it’s approved for rough service environments; and listed for outdoor use confirms it’s rated for weather exposure. Each of these attributes targets a different aspect of the harsh operating conditions, so a cord that meets all of them is required. That’s why selecting a cord that is suitable for extra-hard usage, identified as hard service cord, and listed for outdoor use is the correct approach.

Flexible cords used with moving turbine parts face constant bending, vibration, heat, oil, and weather. To hold up in that demanding environment, the cord needs several protections: extra-hard usage indicates it can handle severe flexing and harsh conditions; identified as hard service cord shows it’s approved for rough service environments; and listed for outdoor use confirms it’s rated for weather exposure. Each of these attributes targets a different aspect of the harsh operating conditions, so a cord that meets all of them is required. That’s why selecting a cord that is suitable for extra-hard usage, identified as hard service cord, and listed for outdoor use is the correct approach.