Across
- 2. When selecting cables, the 3 main requirements are CCC, VD and ______.
- 4. To decrease time spent fault finding, use the ______ split method.
- 5. The first and last thing you should when isolating a circuit before working on it, is _____ the meter.
- 7. _______ error can cause a false reading on older analogue meters.
- 10. When looking at a standard 230 volt socket outlet, the earth is on the bottom and the _______ socket is on the right.
- 11. AS3000 Cl. 1.4.9 is about appliances, which do not include _______.
- 12. AS/NZS 3008.1 is the cable _________ standard.
- 14. The safest way to test an installation is to have the _______ off.
- 15. IZ = current carrying capacity of the cable, and must not be _______ than the current in the circuit.
- 17. A _______ core/conductor is not included in the cable supplying a star or delta connected 3 phase motor.
- 19. Table ______ point two can be used for resistance values of protective earthing conductors (Re), but in any case the resistance must be low enough to ensure the cb trips during a fault.
- 21. Before isolating power and applying your tag/padlock, you should test if the ___________ is at the appliance. This way, you can be more certain the you are isolating the correct circuit.
- 24. 11.5 volts is ______ % of 230 volts.
- 26. How many 10amp double socket outlets can we install on a 20amp cb in a non-domestic situation.
- 27. 218.5 volts is the _________ voltage that can measured at a 230 volt socket outlet to comply with voltage drop requirements.
- 28. A certificate of __________ must be issued to the customer for all electrical work, and the contractor must also keep documentation.
- 32. The insulation of final subcircuits need not be tested between active and neutral (to avoid damage to electronics) but must be tested between both A/N and ________.
- 33. A coil inside a motor is touching the metal frame. This would be known as a ________ circuit fault.
- 34. The approximately 7 times the rated current that flows into a motor during starting is sometimes called ________ current.
Down
- 1. Most loads are wired in __________ so that they receive the same voltage.
- 3. Testing is a requirement under electrical legislation, but what we are trying to accomplish is to find ________.
- 6. Which type of circuit would all loads be off if one of the loads became open circuit?
- 8. The voltage read across a closed light switch, while the circuit is energised, should be near _______.
- 9. When designing an installation the ________ short circuit current available at the supply needs to be considered.
- 12. Table C9 helps us determine the number of circuits in our switchboard by giving guidance on the number of points we can connect to a final _____________.
- 13. _____ < or = IN < or = IZ
- 16. __________ are connected in series with loads.
- 18. The "L" terminal on a light switch is the ________ terminal and is not switched.
- 20. Hot joints in switchboards, even before they cause insulation breakdown, can be detected with a _______ imaging camera.
- 22. If you read 230 volts across the switch of a light circuit, the switch is _______.
- 23. The two parts considered during design are the supply and the customers installation (which meet at the point of supply). When considering the installation side, an important consideration is the ________ arrangement.
- 25. Don't connect the laundry and kitchen socket outlets on the same circuit to avoid _________ the cb.
- 29. Equipotential bonds and the ______ earth must not have a resistance greater than 0.5 ohms.
- 30. The neutral of any final subcircuit must ____ be connected to any other final subcircuit neutral (other than at the neutral bar).
- 31. IN < IZ is known as ___________ between cables and circuit breakers (refer to cl 3.4.4).