NVQ Question Help please

[Superspark23]

Hi

Im a bit stuck to how to correctly answer this question for my nvq. I dont understand what its asking, I'm proberly being quite dumb.

The intention of the Iee regs is to provide protection against five, shock and burns. Give examples of their installations that an inspector would look at to ensure that this requirement would be met.

Thanks

 

[dim_bulb]

is adequate safety im place to prevent accident occuring in the workplace

 

[Superspark23]

Thanks, but i still dont understand whats its asking for. Im being really stupid i think

 

[SirKit Breaker]

Sorry mate, i don't really understand your question, and trying not to be blunt your spelling isn't helping me either. Is this a question from your knowledge bank in the mandatory units?

Don't be frightened of asking, the question IS NOT STUPID, just try to help us to help you.

Cheers.............Howard

 

[Superspark23]

Thanks, I've struggled with spelling due to an speach inpedidiment, but thats another story. Basicly for my NVQ ive been given a series of questions to answer 4/5 per unit, there's 8 units in total. This question :


The intention of the Iee regs is to provide protection against five, shock and burns. Give examples of their installations that an inspector would look at to ensure that this requirement would be met.

Is one of those, and i'm stuck on it, i rember talking about this at college, but i can't find out about it in any of my books, its taken from unit 305/6, prepare to install electrical wiring systems and connect wiring systems.

 

[Guest123]

From what I can grasp I'm assuming it's referring to presence of adequate earthing & bonding arrangements, selection of correctly sized cables/overcurrent protective devices, additional earth fault protection, suitability of enclosures & containment systems etc etc etc.

 

[Superspark23]

I've just found this on an online book, found here 17th Edition IEE Wiring Regulations, Explained and Illustrated,

Would this be what im looking for:

[FONT=Arial, sans-serif]Basic protection (IEE Regulations Sections 410 to 417)[/FONT]
[FONT=Arial, sans-serif]Clearly, it is not satisfactory to have live parts accessible to touch by persons or livestock. The IEE Regulations recommend five ways of minimizing this danger:[/FONT]



[FONT=Arial, sans-serif]1. By covering the live part or parts with insulation which can only be removed by destruction, e.g. cable insulation.[/FONT]


[FONT=Arial, sans-serif]2. By placing the live part or parts behind a barrier or inside an enclosure providing protection to at least IPXXB or IP2X. In most cases, during the life of an installation it becomes necessary to open an enclosure or remove a barrier. Under these circumstances, this action should only be possible by the use of a key or tool, e.g. by using a screwdriver to open a junction box. Alternatively, access should only be gained after the supply to the live parts has been disconnected, e.g. by isolation on the front of a control panel where the cover cannot be removed until the isolator is in the ‘off ’ position. An intermediate barrier of at least IP2X or IPXXB will give protection when an enclosure is opened: a good example of this is the barrier inside distribution fuseboards, preventing accidental contact with incoming live feeds.[/FONT]


[FONT=Arial, sans-serif]3. By placing obstacles to prevent unintentional approach to or contact with live parts. This method must only be used where skilled persons are working.[/FONT]


[FONT=Arial, sans-serif]4. By placing out of arm’s reach: for example, the high level of the bare conductors of travelling cranes.[/FONT]


[FONT=Arial, sans-serif]5. By using an RCD as additional protection. Whilst not permitted as the sole means of protection, this is considered to reduce the risk associated with contact with live parts, provided that one of the other methods just mentioned is applied, and that the RCD has a rated operating current of not more than 30 mA and an operating time not exceeding 40 ms at 5 times, .e. 150 mA.[/FONT]

 

[Guest123]

Yeah, thats 'basic protection' theres also a section titled 'fault protection' and one titled 'basic & fault protection'.

You'll also find them in the scedule of inspections on an EIC or PIR.

 

[rob121]

From your question I wouldnt say that its asking for examples of basic protection as fault protection also prevents fire shock and burns.I agree with Lenny, would have thought inspector would be looking at earthing/bonding, suitability of overload device for the csa of the cable etc. Basically basic and fault protection.

 

[SirKit Breaker]

I am with Lenny as well. And a good effort as well given your speech impediment. I did not wish to offend you in anyway, and if i did, then i apologise, and have taken note for any future posts of yours that i may contribute to.

Cheers........Howard