Q. The cause of damage to the lead sheath of a cable is (Solved)
1. crystallisation of the lead through vibration
2. chemical action on the lead when buried in the earth
3. mechanical damage
4. all of the above
- d. all of the above
1. crystallisation of the lead through vibration
2. chemical action on the lead when buried in the earth
3. mechanical damage
4. all of the above