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Which LVD harmonised standard[s]?

Udtwmc
Hi all,


I'm new to designing electrical equipment for 'test rigs', equipment I wouldn't define as machinery. On these rigs there may be measurement instrumentation, a low voltage control panel with a PLC, switchgear and control gear along with emergency stop circuits, The plant may have pipelines containing non-hazordous liquids/gases and control valves and pumps, but no external moving parts. 


So i'd like to know if there is a definitive LVD harmonised standard that I can buy with the aim of CE marking this equipment (obviously there's the EMC directive to condider but i'm just thinking in terms of the LVD as I don't beleive the Machinery Directive is relevant here, but maybe i'm wrong). Can for example EN60947-5-1 cover the LVD or is there a host of other standards I've not considered?


Also, where can the IET wiring regs BS7671 be of use for the purpose of CE marking electrical equipment?


Thanks in advance
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  • Former Community Member
    0 Former Community Member
    I have actually been involved in CE marking a system, similar to that which is described.

    It had pumps, which have moving parts, so regardless of whether they are exposed or not, the machinery directive will apply.


    As Mike suggests you may need external assistance and there are people out there who make a living out of it, thanks Mike, I pretty much do these days! ?


    The other posts have provided good advice.

    However, harmonised standards are not compulsory, they are voluntary, the trouble is if you don't use them, and something goes wrong, you will have to justify what you did was as safe, or safer then following the harmonised standards, good luck with that, the administrative burden alone outweighs any benefit from not having and following the harmonised standards to be able to claim a presumption of conformity.
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  • Former Community Member
    0 Former Community Member
    I have actually been involved in CE marking a system, similar to that which is described.

    It had pumps, which have moving parts, so regardless of whether they are exposed or not, the machinery directive will apply.


    As Mike suggests you may need external assistance and there are people out there who make a living out of it, thanks Mike, I pretty much do these days! ?


    The other posts have provided good advice.

    However, harmonised standards are not compulsory, they are voluntary, the trouble is if you don't use them, and something goes wrong, you will have to justify what you did was as safe, or safer then following the harmonised standards, good luck with that, the administrative burden alone outweighs any benefit from not having and following the harmonised standards to be able to claim a presumption of conformity.
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