LE1 Flashcards
(36 cards)
What is the purpose (4) of the PEC?
Practical safeguarding, Adequacy, Intention, and Relation to other international standards
What are the scopes (11) of PEC?
Public and private building, Electric generating plants, Industrial plants, Transformer stations, Permanent/Temporary substation, Airfields, Railways Switchyard, Yards/Carnivals/Park/Car Park, Quarries/Mines, Watercraft, Dockyards
Mandatory rules are …
actions that are specifically required or prohibited
Mandatory rules are usually characterized by the terms …
shall or shall not / shan’t
Permissive rules are …
actions that are allowed but not required
Permissive rules are usually characterized by the terms …
shall be permitted or shall not be required
These are references to related sections of the Code, or information related to a Code rule, is included in the Code in the form of fine print notes (FPN)
Explanatory Materials
The current in amperes, that a conductor can carry continuously under the conditions of use without exceeding its temperature rating.
Ampacity
A device that, by insertion in receptacle, establishes a connection between the conductors of the attached flexible cord and the conductors connected permanently to the receptacle.
Plug cap
Circuit conductors between the final overcurrent device protecting the circuit and the outlet(s).
Branch circuit
A device designed to open and close a circuit by nonautomatic means and to open circuit automatically on a predetermined overcurrent without damage to itself when properly applied with its rating.
Circuit breaker
Give 5 types of CB
Adjustable, Instantaneous, Inverse time, Non-adjustable, Setting
An outlet intended for the direct connection of lampholder, luminaire, or a pendant cord terminating in lampholder.
Lighting Outlet
An excess of the rated current of equipment or the ampacity of a conductor.
Overcurrent
A single panel or group of panel units designed for assembly in the form of a single panel, including buses and automatic overcurrent devices
Panel board
A circuit conductor that is intentionally grounded
Grounded conductor
Grounded conductors are usually distinguishable by …
Continuous white or gray outer finish,
Three continuous white stripes along its length on any color conductors EXCEPT GREEN
Meter shall be included for a show window, measured horizontally along its base.
True or False?
True
These boxes are used for easier pulling of wires
Pull boxes
These boxes are usually rectangle or octagonal. It may also be a part of the conduit.
Junction boxes
the conduits for installation inside ceilings, wood partitions, underground, shall be PCV.
True or False
True
Conduits for service entrance shall be rigid steel conduit.
True or False
True
Light switches and convenience outlet shall be rated …
10A, 250V AC
A 40W fluorescent lamp can illuminate an area of
10m2