W
wolfie1979
Hi everyone. Can anyone tell me the ip rating of a distribution board a) accessible top surface(horizontal) b) an intermediate barrier c) the vertical surfaces. Cheers
- Sep 5, 2010
- 71,498
- 72,015
- 18,688
- 78
- If you're a qualified, trainee, or retired electrician - Which country is it that your work will be / is / was aimed at?
- United Kingdom
- What type of forum member are you?
- Electrical Engineer (Qualified)
- Business Name
- Telectrix
on this subject, can someone please tell me what the X 's refer to. i have always used IP44, IP66 etc.
M
malcolmsanford
View attachment djt General Information- IP Codes.pdf
it's with regard to the protection rating. When there isn't one you put an X. This is a handy little article mate
it's with regard to the protection rating. When there isn't one you put an X. This is a handy little article mate
M
Mr.Si
I googled this because I couldn't remember (and don't have the regs with me at work (I work in IT Support at the mo) and found this on Voltium's Site:
The link is as follows:
Subcategory - 1. BS7671 - Voltimum UK - Electrical Installation Products and Contracting
Firstly, what does IPxxB mean, and secondly where is an 'appropriate' place for an electrical enclosure (lowbay) to be installed when it is only IP1x when suspended (i.e. has large holes <40mm on the back of it)? This is relating to 713-07-01 of BS7671. Can this fitting be installed as expected (trunk mounted 4-5m high) with the large holes open, and still comply? Thanks for any help,
IP code for ingress protection are given in BS EN 60529:1991 which is a standard used to form the basic requirements of electrical equipment standards. The degree of protection provided by an enclosure is indicated generally by two numbers and followed by an optional ltter oand or optional supplementary letter e.g IP 44 B H
The first numeral indicates the level of protection against ingress of solid foriegn bodies and protection against access to hazardous parts inside an enclosure.The 2nd numeral refers to the level of protection against ingress of water.If not required the numeral can be replace by X or XX.The additional letter indicates the degree of protection of persons against access to hazardous parts. It is only used if the protection against access to hazardous parts is higher than that indicated by the 1st character, or if only the protection against access to hazardous parts, and not general ingress is indicated, the 1st character numeral being replaced by X. The letter B - is protection against access with a finger (minimum 12mm diameter test finger, 80mm long) (Adeqauet clearance from live parts.
IP1X - is genrally protection against access to hazardous parts with the back of the hand and protection against foriegn solid objects of 50mm diameter and greater
regulation 713-07-01 requires that the verifier ensures the specified level of protection against direct contact is achieved - use the above as guidance i.e if the dsigner has specified xxB - you should not be able to stick a finger into the equipment and touch live parts and if IP1X is specified then as long as openings are less than 50mm this is satisfied.
If the fitting cannot be installed with this level of protection - the deigner should be consulted to either review the equipment specified or to assess the risks if using the type specified and to ensure safety.
I hope this is of help
Regards
Bob
The link is as follows:
Subcategory - 1. BS7671 - Voltimum UK - Electrical Installation Products and Contracting
- Jan 18, 2008
- 4,403
- 1,558
- 2,688
- What type of forum member are you?
- Electrical Engineer (Qualified)
Similar threads
- Article
OFFICIAL SPONSORS
These Official Forum Sponsors May Provide Discounts to Regular Forum Members - If you would like to sponsor us then CLICK HERE and post a thread with who you are, and we'll send you some stats etc
