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Why does Hydro-Québec recommend LVDP and JDP pedestals as alternatives to conventional connection pits?

Many contractors reach out to us for information about the MCM BRBT and BRC pedestals. These products are referenced in certain Hydro-Québec standards, including datasheet 10-6005 from standard B.41.21, an excerpt of which is shown below.

Type of Civil Structure

Voltage

No. of circuits/cables

Max cable size

Cost

Location

MCM Solutions

MCM LVDP
(Low-Voltage Distribution Pedestal)

240/600 volts 

1 / 4

2 × 750 kcmil
2 × 500 kcmil

$

Off-sidewalk (Private property)

MCM JDP
(Joint Distribution Pedestal)

600 volts (E4)
240 volts (E2CT)

1 / 3

2 × 750 kcmil
1 x 500 kcmil

$$

Off-sidewalk (Public right-of-way)

Traditional Solutions

Connection pit (915 mm diameter)

240/600 volts

1 / 3

2 × 500 kcmil
1 × 350 kcmil

$

Off-sidewalk (Private property) or sidewalk

Underground junction box
(1165 x 1800 mm)

240/600 volts

3 / 12

Up to
750 kcmil

$$$$

Off-sidewalk (Private property) or sidewalk

(Note: This is not a verbatim copy of standard 10-6005)

Conventional connection pits are only designed for small or medium-sized cables. And while underground junction boxes can accommodate large cables, they are far too expensive.

LVDP and JDP pedestals: the optimal solution for large cable configurations.