Section 4—Installation Power-Style™ QED-2 Switchboards
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ENGLISH
In Canada, a main bonding jumper bus or cable is provided between the neutral
bus and ground bus. When the bonding jumper must be disconnected (for
example, for a Megger
®
test), remove the main bonding jumper bus or cable lug
with cable from the neutral bus. This is normally located near the line neutral lugs.
Secure the main bonding jumper bus or cable and lug to maintain the required
distance from phases and neutral.
NOTE: If the switchboard is fed from multiple sources (for example, a
double-ended system like a main-tie-main), there may be two or more main
bonding jumpers installed.
Figure 18 – Main Bonding Jumper
Figure 19 – Series 2 Main Bonding Jumper
Neutral lug pad
Main bonding jumper
Ground bus extension
Neutral lug pad
Main bonding jumper
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