GE Industrial Solutions GE Zenith Series DPB - Manual (Page 33)

25 Installation & Operation Manual, GE Series DPB Busway
March 25, 2013, Rev 0 GE Confidential
Series DPB Busway Installation & Operation Manual
BEFORE ENERGIZING THE BUSWAY CHECKLIST
Before energizing the busway, some precautionary inspections and reviews are necessary.
1. Perform a complete visual inspection of all end feed connections (See Figure 12 (Standard) and
13 (BCMS)), splice couplings (See Figure 8 (160-250A) and Figure 10 (400A)) and tap off boxes
(See Figure 16).
2. Ensure that all protective devices are correctly rated with respect to the loads supplied,
or in accordance with project specifications, and that they are in the OFF position.
3. Check that all the Tap Off Boxes protective devices are in the OFF position.
4. Conduct a Resistance Test between A: busrail-to-busrail assembly, and B: busrail-to-tap off box.
A: Value shall be < 0.005 ohms
B: Value shall be < 0.006 ohms
5. Check the grounding connections of all devices are secure and tightened. Note: A Torque
Specification label can be found inside each End Feed.
Lug Torque (End Feed) Record: ______________________
6. 6. Verify the phase of the busway matches the system phasing before re-connecting.
a) Verify that all Tap Off Units are facing forward to the front (neutral) of the busway
b) Verify that all connection phasing is correct
c) Verify that all incoming power feeds are phased correctly to the bus system