Utilities 1 Flashcards
Design of an electrical system involves applying the standard written into building code.
Specifies the minimum provisions necessary for protecting people and property from improper use of electricity and electrical equipment
ELECTRICAL CODE
Is used nationally as the basis for safeguarding persons, building and its contents from hazard that may arise from the use of electricity.
Contains provisions used for legal enforcement in the installation of electrical system design in the country.
PHILIPPINE ELECTRICAL CODE ( PEC )
Most municipalities have ordinances (local laws) that require that any person who wishes to engage in the business of installing electrical system must be licensed.
LICENSING
Most municipalities require that a ____ be issued before any electrical installation may be made on a project.
PERMITS
Show the layout and design of an electrical installation
ELECTRICAL CONSTRUCTION DRAWING
Will guide the electrical design engineers, inspectors from the office of the local building official, inspector from local electric utility, prospective bidders, and other persons who have interest in the project.
LOCATION PLAN
S similar to the architectural layout except that the ____ contains the interconnection of the service drop/ lateral, service entrance, service equipment, feeder, subfeeder, load center, panelboards, branch circuit, and nomenclature of occupancies.
ELECTRICAL LAYOUT
These help in understanding the electrical plan.
LEGEND OR SYMBOL
This is a load tabulation which indicates the;
Branch circuit for each load or combination of loads.
Rating of each load and the corresponding computations.
Source of electric power and rating of service equipment protective device and disconnect.
Number of phases, type, and size of wiring
Service entrance, feeder, subfeeder, etc.
SCHEDULE OF LOADS
This shows a comprehensive interconnections size and rating of the service, drop or lateral, service entrance, service equipment, feeder, sub feeder, load centers, and panel board
SINGLE LINE OR RISER DIAGRAM
This is a standard strip of 40 mm height at the bottom of the sheet
TITLE BLOCK
This is a computation or selection of the
1. size/ type /number of wires and size /type of conduits for branch circuits of feeders feeders pathway and service entrance
2. Type, rating, and strip setting of overload protective devices
3. Short circuit current and interrupting capacity of overcurrent protective device
DESIGN ANALYSIS
It discuss the design processes, criteria, methods, requirements of the owner, architect, electrical utility, and others.
GENERAL
It is starts from an architectural layout and other drawings
DESIGN PROCESSES
A preliminary arrangement of the electrical plan requirements help in a determination of the number of throwing sets to be prepared to avoid overcrowding and electrical plan.
PREPARATION
