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Low Voltage Cable Gland Plate

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Edgar Macapili

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Some of the cable gland plate for cable conductors are protected by cable glands with cone rubber shield. Does any low voltage cable gland plate used on main distribution board needs to have slot or slit in between the cable glands?
 
don_resqcapt19

don_resqcapt19

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Illinois
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retired electrician
Re: Low Voltage Cable Gland Plate

If the plate is of ferous metal, then slots will be required.
300.20(B) Individual Conductors Where a single conductor carrying alternating current passes through metal with magnetic properties, the inductive effect shall be minimized by (1) cutting slots in the metal between the individual holes through which the individual conductors pass or (2) passing all the conductors in the circuit through an insulating wall sufficiently large for all of the conductors of the circuit.
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I may have posted without really understanding the question. What type of conductors are involved? If they are power or lighting conductors my answer stands. However if the conductors are covered by Article 725 or any
Chaper 8 article, then 300.20 does not apply.
Don

[ September 23, 2005, 07:20 PM: Message edited by: don_resqcapt19 ]
 
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