Electrician Red Seal · Question
What is the minimum burial depth for direct-buried Teck90 cable rated over 750V, installed under a residential driveway?
CEC Table 53 lists burial depths. For high-voltage cables (>750V) installed in areas subject to vehicular traffic, such as a residential driveway, the minimum b
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Question: What is the minimum burial depth for direct-buried Teck90 cable rated over 750V, installed under a residential driveway?
Answer options:
- 450 mm
- 600 mm
- 750 mm ✅ 900 mm
Correct answer: 900 mm
Explanation: CEC Table 53 lists burial depths. For high-voltage cables (>750V) installed in areas subject to vehicular traffic, such as a residential driveway, the minimum burial depth is 900 mm (0.9 m) to provide adequate protection from damage.
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