24 Questions
which table in the Canadian Electrical code identifies the constructional features and voltage rating of standard wires and cables?
Table D1
What is the smallest conductor size that can be used for power supply circuits? Rule:4-002
No. 14 AWG copper, No. 12 AWG aluminum
What three main factors must be considered when selecting the proper conductor insulation type? Rule: 4-000, 4-002, 4-004
The voltage rating, the temperature rating and the condition of use
What is the largest wire size in AWG?
No. 0000 AWG
What are the units of measure for wires larger than the AWG sizes and what is the smallest gauge of those units?
kcmil 250 (kcmil)
What size of aluminum conductor would have a similar resistance and ampacity, over the same length, as a #8 AWG copper conductor?
AWG 6 aluminum
Minimum work space around electrical equipment Rule: 2-308
1 m with secure footing
What is maximum allowable conductor temperature for NMWU cable? Table 19 (page 484)
60'C
XLPE is an acronym or abbreviation for what ?
cross-linked polyethylene
Why does NMD90 Heatex cable not have a white conductor?
It is used for 240-V heating circuits, connected line to line, with no neutral needed.
What are the main differences between ACWU90 and TECK90 cables?
ACWU90 conductors are aluminum, whereas TECK90 conductors are copper, ACWU90 cables do not have an inner jacket around the conductors like TECK90 conductors do.
What extra component does AC90 ISO-BX cable have?
An extra insulated bond conductor
What are the trade names for three- and -four conductor neutral supported cable?
Triplex and Quadruplex
What type of buildings are cables with an FT4 rating suitable for?
Non-combustible buildings
What purpose were TECK90 cables originally designed for?
For use in Canadian mines
What condition of use is TECK90 suitable for that ACWU90 is not?
For exposed wiring in dry locations where exposed to corrosive action, if suitable for corrosive conditions encountered.
What type of service are neutral-supported conductors suitable for?
Over head or above ground
What table provides the voltage ratings and construction of wires and cables? page-732
Table D1
What is the voltage rating of TECK90 cable? page 732
It is available in three voltage ratings: 600 V, 1000 V and 5000 V
What is the name of the original manufacturer of MI cable?
Pyrotenax
What is the smallest size of flexible conduit allowed ? Rule: 12-1004
12 trade size, not more than 1.5 m
What is type DB2 thin-wall conduit used for? Rule: 12-1150
underground burial installations
In what applications do we need a plastic bushing installed? Rule: 12-906
When using #8 AWG wire or larger in a conduit
What type of connector is required to install EMT outdoors?
rain tight connector
Test your knowledge of the Canadian Electrical Code's rules and guidelines for wires and cables. This quiz covers topics such as conductor sizes, insulation types, wire gauge, and conductivity of aluminum conductors compared to copper ones.
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