Standard
|
ELT 121 – Residential Wiring II
Provides additional instruction
on wiring practices in accordance with the National Electrical Code. Topics
include: residential single family service calculations, residential two-family
service calculations, load balancing, sub-panels and feeders, residential
single-family service installation, residential two-family service
installation, concepts of TV and CATV installation, swimming pool installation,
and remote control of lighting and intercom installation.
|
Competency Areas: |
Hours: |
||
|
|
|
|
|
|
Residential Single Family Service Calculations |
Class |
5 |
|
|
Residential Two-Family Service Calculations |
D. Lab |
0 |
|
|
Load Balancing |
P. Lab/O.B.I. |
3 |
|
|
Sub-Panels and Feeders |
Credit |
6 |
|
|
Residential Single-Family Service Installation |
|
|
|
|
Residential Two-Family Service Installation |
|
|
|
|
Concepts of TV and CATV Installation, Swimming Pool
Installation, and Remote Control Lighting and Intercom Installation |
|
|
|
|
|
|
|
|
|
Prerequisite:
|
|
||
|
Corequisite: |
ELT 120 |
||
Course Guide
|
|
Competency |
After completing this section, the student will: |
Hours |
||
|
Class |
D. Lab
|
P. Lab/
O.B.I. |
||
|
RESIDENTIAL SINGLE
FAMILY SERVICE CALCULATIONS |
6 |
0
|
4 |
|
|
Service rating |
Calculate minimum rating
IAW NEC |
|
|
|
|
Service conductors |
Choose proper type and
size IAW NEC |
|
|
|
|
RESIDENTIAL
TWO-FAMILY SERVICE CALCULATIONS |
6 |
0
|
4 |
|
|
Service rating |
Determine minimum size IAW
NEC and |
|
|
|
|
|
owner options |
|
|
|
|
Service conductors |
Determine proper type and
size in accordance with the service type chosen |
|
|
|
|
LOAD BALANCING |
6 |
0
|
4 |
|
|
Computed loads |
Determine 120v and 240v
loads |
|
|
|
|
Neutral load |
Calculate unbalanced loads |
|
|
|
|
Ungrounded loads |
Balance loads phase to
phase |
|
|
|
|
SUB-PANELS AND
FEEDERS |
6 |
0
|
4 |
|
|
Feeders |
Size properly and choose
style and type according to the NEC |
|
|
|
|
Sub-panel |
If uses, determine the
size/rating to NEC requirements |
|
|
|
|
RESIDENTIAL
SINGLE-FAMILY SERVICE INSTALLATION |
6 |
0
|
4 |
|
|
Service entrances |
Identify service entrance
types |
|
|
|
|
Service panel installation |
Install service panel in
residence according to service type chosen |
|
|
|
|
NEC requirements |
Comply with the NEC on
installation and grounding |
|
|
|
|
RESIDENTIAL
TWO-FAMILY SERVICE INSTALLATION |
10 |
0
|
5 |
|
|
Service entrances |
Identify service entrances
for two family dwellings |
|
|
|
|
Service panel installation |
Install service panels for
two family dwellings |
|
|
|
|
NEC requirements |
Comply with the NEC on
service installations |
|
|
|
|
|
Comply with the NEC on
grounding requirements |
|
|
|
|
Device boxes |
Determine height, depth,
and location of device boxes |
|
|
|
|
|
Install device boxes |
|
|
|
|
CONCEPTS OF TV AND
CATV INSTALLATION, SWIMMING POOL INSTALLATION, AND REMOTE CONTROL LIGHTING
AND INTERCOM INSTALLATION |
10 |
0
|
5 |
|
|
TV and CATV installation |
Discuss requirements for
TV and CATV installations |
|
|
|
|
|
Install CATV outlets and
coaxial terminals |
|
|
|
|
|
Install CATV splitters |
|
|
|
|
|
Apply NEC
requirements for TV and CATV
installations |
|
|
|
|
Swimming pool installation |
Discuss swimming pool
installations |
|
|
|
|
|
Install proper grounding
for swimming pools |
|
|
|
|
|
Discuss electrical shock
hazards |
|
|
|
|
|
Install and connect pool
pump motor |
|
|
|
|
|
Discuss NEC requirements
for swimming pools, spas, hot tubs, and hydromassage
bathtubs |
|
|
|
|
Remote control lighting |
Connect and install low
voltage relays |
|
|
|
|
|
Connect and install low
voltage lighting systems |
|
|
|
|
|
Connect and install
120V-24V step down transformers |
|
|
|
|
|
Connect and install
intercom system |
|
|
|
Suggested Resources
|
Alerich,
Walter N,; Electrical construction Wiring, American Technical Society, ISBN 0-8269-1420-9
Mullin,
Ray C.; Electrical Wiring Residential, Delmar Thomson learning, ISBN 0-7668-3284-8
Rockis,
Gary; Residential Wiring, American Technical Society, ISBN 0-8269-1652-X
NEC 2002 Code, Published by NFPA, Distributed by Delmar Publishers
National Electrical Code, National Fire Protection Association, Inc., ISBN 0-87765460-3