Busbar Insulator Sizes

Dc current when dealing with dc power the biggest concern is resistance per foot and the resulting voltage drop.

Busbar insulator sizes.

Busbar supports busbar sb c 10 multipolar edgewise mounting busbar supports with fixed interphase 2 bars of 5 mm or 1 bar of 10 mm no. Busbar insulators 25mm. Busbar insulators 40mm. Size would probably be adequate.

Assume that required ampacity is 185 amp at 30 c rise. Low voltage insulators manufactured from polyester material reinforced with fibreglass bmc rf 3 20. Busbar insulators 63mm. Working temperature is 40 c to 130 c.

Available in thread sizes m3 m16 in female female male female and male male formats. Mechanically strong and shatter resistant low voltage busbar supports for switchboards. For example a 1 16 x 1 2 inch bus bar has an area of 0 0312 inches square and the equivalent circular area of 39 7 circular mils. Busbar insulators 51mm.

Bus bar as 187 amp. Then check table 1 to verify that size selected has the necessary ampacity. Insulect stocks a wide range of sizes and styles including both metric and imperial thread sizes of standoff insulators which are widely utilised in and around switchboards electrical panels and as busbar insulating supports for indoor applications. This is confirmed by table 1 which lists the ampacity of 1 16 x 1 in.

Of poles insulation voltage vac number of bars max x bar thickness mm b mm r bar height mm pack qty reference 3 p 1000 2 x 5 1 x 10 160 25 1 5024 6304 3 p 1000 2 x 5 1 x 10 160 40 1 5024 6309. Choose from our selection of bus bar insulation in a wide range of styles and sizes. Busbar insulators 76mm. Busbar insulators 35mm.

Table 3 indicates that 1 16 x 1 in. Ul certified and classified hl2 according to en45545 2.