Coursework-HELP PLEASE!!!!

[Delboi1992]

Hi everyone I will be posting a lot of questions here in the next few hours I would really appreciate it if you can tell me most of the answers as I am not getting far searching on the internet.

1. Approximately how much of the conductor should be bare, ready for termination?

2. [FONT=&quot]In relation to a fused spur, what does ‘un-switched’ mean?

3. [/FONT][FONT=&quot]How would you make sure t hat a system had been safely isolated?

4. [/FONT]Give examples of the types of cable you are likely to find used in plumbing installations in a typical domestic dwelling.

5.Give three examples of good practice when installing cable runs.

6.A switched fused-spur outlet is not suitable for:

a pump
b an immersion heater
c a central-heating programmer
d a macerator-type WC



7a.If using a metal fused-spur outlet box, what must always be installed where the cable passes through the wall of the box?



b.What do yo u think is the reason for this?

 

[jonnyboy1]

A. As much copper so theres none showing once terminated

 

[Delboi1992]

Cheers for the first answer!

 

[jonnyboy1]

A. As much copper so theres none showing once terminated. 2 an unswitched fused spur is an isolation point usually used in bathroom for downflows,fans,towel heaters etc. 3 test for voltage-isolate desired circuit-and re check to prove dead also check test lamps b4 and after on provin unit

 

[jonnyboy1]

A. As much copper so theres none showing once terminated. 2 an unswitched fused spur is an isolation point that does not have a switch usually used in bathroom for downflows,fans,towel heaters etc. 3 test for voltage-isolate desired circuit-and re check to prove dead also check test lamps b4 and after on provin unit

 

[jonnyboy1]

A. As much copper so theres none showing once terminated. 2 an unswitched fused spur is an isolation point that does not have a switch usually used in bathroom for downflows,fans,towel heaters etc. 3 test for voltage-isolate desired circuit-and re check to prove dead also check test lamps b4 and after on provin unit 4 pvc twin supply and pvc flex heat resistant

 

[jonnyboy1]

A. As much copper so theres none showing once terminated. 2 an unswitched fused spur is an isolation point that does not have a switch usually used in bathroom for downflows,fans,towel heaters etc. 3 test for voltage-isolate desired circuit-and re check to prove dead also check test lamps b4 and after on provin unit 4 pvc twin supply and pvc flex heat resistant

 

[jonnyboy1]

sorry mate doin this on my phone and its going a bit mad. 5 cables cliped direct to joist. cables ran through joist with joist drilled out where no screws could damage cable. If joists are notched ensure to place metal plate 2 protect cable

 

[Delboi1992]

Na your alrite cheers for the help if you dont mind i still got loads more i'ill put them up after

 

[jonnyboy1]

6 not sure wot d is but its b immerson heater as they draw 13.6 amps (i think) on 16 or 20A MCB so you would not use a 13A fused spur for this, B.

 

[jonnyboy1]

7 a grommet 7b if is to protect isulation of cable espcially single core cables from rough edges on metal box which could knick inuslation of cable which can make contact wif metalt box which then becomes live

 

[Delboi1992]

Cheers for that mate i'ill be putting the others up in a mo...

 

[jonnyboy1]

no sweat what course is it?

 

[Delboi1992]

Level 2 Apprenticeship in Plumbing

 

[jonnyboy1]

no sweat ive been qualified for 2yrs so hopefully can b a help nuffin worse than coursework doin ur head in.