Electrician Talk banner

HELP Part 2

2504 7
Explain, with reasons, why the following information,relating to the characteristics of the supply, is required during the design stage of the electrical installation.

A). Prospective Earth Fault Current. (l)

B). The Value of External Impedance. (Ze)

C). New Assumed current demand of the installation.

D). Disconnection time of the external bulkhead type luminaire.
1 - 8 of 8 Posts

·
Electrical Simpleton
Joined
·
3,343 Posts
Explain, with reasons, why the following information,relating to the characteristics of the supply, is required during the design stage of the electrical installation.
A). Prospective Earth Fault Current. (l)
Prospecting is the only known way to locate Earth Fault Current.

B). The Value of External Impedance. (Ze)
The value is directly related to the demand for said impedance based upon external stimuli.
C). New Assumed current demand of the installation.
Typically, the installation will utilize all of the available current based solely upon assumptions of course.

D). Disconnection time of the external bulkhead type luminaire.
The external bulkhead luminaires that I have encountered usually have a disconnection time in the range of .014 to .018 nano seconds.

Pete

All of the above answers are of course BS... the same as asking us to do your homework.
 
1 - 8 of 8 Posts
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.
Top