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Conduit filling as per BS/IEC

Conduit filling as per BS/IEC

Conduit filling as per BS/IEC

(OP)
Dear All,

Could you please let me know the percentage cable filling allowed for a conduit as per BS/IEC.

Regards,
Lakshmipati

RE: Conduit filling as per BS/IEC

I'm not familiar with BS standards, but the NEC limits conduit fill to 40% for three or more conductors.  (e.g. Art 344.22 for rigid conduit)

 

RE: Conduit filling as per BS/IEC

(OP)
Dear all,

Thanks for the answers.

7another4,

could you please let me know the section in which it is given as 40% filling.

Regards,
Lakshmipati

RE: Conduit filling as per BS/IEC

I think it is in The On-Site Guide .I took this sentence from a flexible conduit manufacturer:
http://www.flexicon.uk.com/en/index.php?page=threaddata.php
"UK wiring regulations BS7671, recommend that the total cross sectional area of the sum of the individual cables should not exceed 40% of the cross sectional area of the conduit"
And other stated:
"BS7671-2008 provide tables for cable and conduit factors, these can be found in the current IEE On Site guide BS7671-2008 Appendix 5 Pages 117 to 120"
 

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