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15 Cards in this Set
- Front
- Back
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Does the service have to be grounded? If so where is the system grounded? |
Yes, the system is grounded on the supply side of the disconnect switch. |
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What type of material is used for the system ground conductor? |
10-802 Copper, Aluminum or other acceptable material resistive to corrosion |
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What is the minimum size of conductor used for a system ground conductor to a manufactured grounding electrode plate, or a field plate assembled concrete encased (ufer) ground? |
Not smaller than No.6 Copper or No. 4 Aluminum. |
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Is there a requirement for Meter Base Bonding? |
Bonding screw for no other purpose Yes the grounded service conductor lug (neutral) utilizes a mounting screw to the can for this purpose |
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What means of bonding is required for service equipment? |
Metal raceways or armour, Bonding jumper and grounding bushing Two locknuts and a grounding bushing |
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What method is used to ensure effective bonding to the painted panel? |
Remove paint from threads and contact surface |
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What methods of grounding are approved for the system? |
Manufactured ground rods, plate, field assembled: ufer, bare Copper or Aluminum; or in-situated artesian well, or 3m long metal water pipe 600mm below grade |
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What means of grounding conductor connection is used to the electrode, and at what location for water pipe electrode? |
Clamps, welding, brazing etc used to connected conductor to electrode. in situated- as near as practicable to the point of entrance to the building adequate Ampacity, continuous pipe without insulating sections |
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How does the CEC define grounding? |
A permanent and continuous conductive path to earth |
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How does the CEC define grounding? |
A permanent and continuous conductive path to earth |
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What does bonding mean? |
To permanently join all non-current-carrying metal parts to form a path. |
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How does the CEC define grounding? |
A permanent and continuous conductive path to earth |
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What does bonding mean? |
To permanently join all non-current-carrying metal parts to form a path. |
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Grounding and bonding provide these safety provisions.. |
1. They protect life from the danger of electric shock and property from Damage.
2. on circuit supplying interior wiring systems, they limit voltage to ground to 150 Volts or less
3. They open fuses and circuit breaker's when there is a short circuit to ground. |
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Grounding conductor connection |
A bolted ground clamp A pipe fitting screw in the pipe Cad-weld (thermal welding process) Silver solder |
