Any help ?

[lofty84]

state measures to provide protection from live parts of terminations?

would you say this is asking me about protective equipotential bonding and automatic disconection of supply ie joing all exposed extraneous conductive parts within the istallation together

or am I headeing in the wrong direction ?

 

[NMc]

What is the statement in connection with?

I would say that it is likely to be looking at basic protection measures. You are heading toward fault protection

 

[R1CH-G]

Sounds to me like enclosures, placing out of reach, barriers and that kind of thing.

 

[lofty84]

thanks alot.

list the four major classification of external influences with regard to utilisation of buildings

does

use of structure , environmental conditions, current demmand and overcurrent protection sound about right

 

[j.mawer]

From brb appendix 5 Classification of external influences table for utilisation of building pg 329
Capability of person
Contact of persons with earth potential
Conditions of evacuation in an emergency
Nature of processed or stored materials

 

[Deleted member 26818]

No.
You need to read the question, then look up the external influences in Appendix 5 of BS7671.
There are 5 listed under Utilisation, but one doesn't have any codes, so I would assume that it is the other 4 that are required for the answer.

 

[lofty84]

cheers guys. I can see Im going to have to do about 4 hours private study each to get through this 302.

 

[lofty84]

if I had to describe the relationship between the current carrying capacity of a conductor , the size of the conductor and the installation method where would I need to head in the BS7671

cheers

 

[telectrix]

appendix 4.

 

[lofty84]

nice one haveing a look at it now but it looks pretty hard