7/29/2019 (5)Abstract of is 5039 Distribution Pillars

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Abstract of IS: 5039 Distribution Pillars. (

7/29/2019 (5)Abstract of is 5039 Distribution Pillars

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They shall be easily removable. The apron shall be made from a suitable material to withstandrough usage. If made from sheet steel, the thickness of the sheet shall be at least 3.15 mm.

Pillar Lighting: A bayonet lamp holder complying with IS : 1258-1987, with a tumbler switch, competing with IS :

3854-1988, a three pin plug and socket complying with IS : 1293-1988 with necessary fuses andwiring shall be provided inside the pillar.

Unless otherwise agreed between the manufacturers and user, on TPN fuse boards, terminals for

the neutral conductor shall allow the connection of aluminum conductors having a current carryingcapacity:

(a) equal to half the current carrying capacity of the phase conductor with a minimum of 25 mm2, ifthe size of the phase conductor exceeds 25 mm2; and

(b) equal to the full current carrying capacity of the phase conductor if the size of the latter is lessthan or equal to 25 mm2.

Bus-bar Suitable barriers shall be provided between bus-bars.

Earthing The metal casing of the distribution pillar shall be provided with two separate earthing terminals and

the framework shall be metallically connected with the casing.