Wiring Methods Obj 1-9 Flashcards
What is an “Outlet”?
a point in the wiring installation at which current is taken to supply utilization equipment
Where can the general requirements for Wiring methods be found?
Section 12, Subheading General Requirements.
In a non-vehicular area, what is the minimum requirements for a 600V, TWU conductor in a rigid conduit?
450mm
minimum cover requirement for a direct buried cable table number?
53
In a pedestrian only area, what is the minimum required depth of a trench, prior to the placement of sand, for the installation of a 25mm diameter, TECK90 600 volt cable?
There will be no additional mechanical protection
550mm
Exposed wiring run on the exterior surfaces of buildings or overhead wiring between buildings on the same premises are covered by Rules 12-302 to 12-320.
True
12-300
Termination lugs may be used to support the weight of a conductor, if they are tightened in accordance with tables D6 and D7.
False
12-120
Exposed conductors on exterior surfaces of a building shall be supported by brackets, racks, or insulators and attached at what minimum distance from adjacent surfaces?
50mm
12-306
NMSC may be installed on the upper face of ceiling joists in the attic, without mechanical protection, provided the vertical height between joists and rafters is greater than 1 m.
False
12-514
NMSC must be strapped or supported at intervals of not more than 1.5 m and within 300 mm of every box.
True
12-510
When running an armoured cable between boxes or fittings, the cable shall be supported:
within 300mm of every box
When armoured cable is to be run directly behind a baseboard the cable:
Shall be protected from mechanical injury
It is permissible to use mineral-insulated cable, copper-sheathed cable or aluminum-sheathed cable in buildings of combustible construction.
True
12-702
Does an installation with 4, 90 degree bends and 2, 45 degree bends comply with CEC code?
NO!
12-942
Splices shall be permitted in surface raceways with removable covers.
True
12-912
What is the minimum size of flexible metal conduit required for forty No. 14 AWG RW90XLPE, unjacketed, stranded, 600 V conductors?
41
Which tables may be used to determine the size of conduit required when all conductors are the same size and type?
6A- 6K
In locations subject to extreme temperature changes, two 90 degree bends may be used in a long run of surface-mounted rigid metal conduit, in place of an expansion joint.
True
12-1012
What is the maximum distance, from and LB fitting, that a strap can be installed on a 35 trade size EMT?
1m
12-1406
