|Electricals & Electronics
|Power Distribution Solutions
22
Instruction / Check list for Pre-Commissioning of the Busduct System
Sr.
No.
Description
Status
1
Client's Competent Personnel should take training on the method of installation of the bus
duct / Rising main / lighting Trunking from Godrej before start of installation.
Ok
Not Ok
N. A.
2
All the busduct lines are aligned in plumb in case of riser & at zero level in case of horizontal
run of busduct.
Ok
Not Ok
N. A.
3
Check whether all the joint bolts are sheared @14-15 kg-m. and tightening of joint bolt is
100% responsibility of installation contractor / Clients.
Ok
Not Ok
N. A.
4
Take insulation resistance at 1000V. Check the IR before and after Shearing of joint Bolts.
As per IEC 60439-1, clause 8.3.4 insulation resistance should be at least 1000
𝛀
/V i.e. 0.5 M
𝛀
.
(To maintain stringent quality standards Godrej recommends 1M
𝛀
)
Ok
Not Ok
N. A.
5
Check whether all the spring Hangers top Nuts are loosen and spring should be loaded in
case of Riser as per installation manual.
Ok
Not Ok
N. A.
6
Check whether earthing run along with Bus duct is physically connected to both the ends of
the busduct flanged & equipment.
Ok
Not Ok
N. A.
7
Check whether all the bolts at Flanged end are tightened.
Ok
Not Ok
N. A.
8
Check tightening of all the bolts of flexible links to equipment side like Panel ,Transformer,
DG
Ok
Not Ok
N. A.
9
Check whether all the supports to the risers and bus duct line are installed properly to carry
the required weight of Busduct
Ok
Not Ok
N. A.
10
Check whether all the holding clips on the horizontal supports are tighten
Ok
Not Ok
N. A.
11
Check whether all the holding clips on Tap off box are tighten
Ok
Not Ok
N. A.
12
Relay Setting of all the MCCB / ACB.
Ok
Not Ok
N. A.
13
Check for chance of water seepage on Busduct / Rising Main from other utilities
Ok
Not Ok
N. A.
14
Wet Riser & Sprinkler should not be in same shaft.
Ok
Not Ok
N. A.
15
Check whether the entire name plates on Tap Off Box & panels indicating outgoing location
of supply.
Ok
Not Ok
N. A.
16
Check whether caution / danger stickers displayed on all the Tap Off Boxes and Electrical
Panels.
Ok
Not Ok
N. A.
17
Check whether earthing wire is connected to Tap Off Box door & bus duct housing.
Ok
Not Ok
N. A.
18
Check Phase sequence of Rising Main (R, Y, B, and N) in line with Tap off box incoming and
outgoing.
Ok
Not Ok
N. A.
19
Check Whether Outdoor Installation Bus duct is properly filled up with sealant/compound at
the joints in case of IP/65/68
Ok
Not Ok
N. A.
20
Bus Duct / Rising Mains should not be energized without checking of all above instructions
and installation Contractor / Client to ensure all above points
Ok
Not Ok
N. A.
Note: - To put the Check mark for compliance.
Checked at site by:-
Name
Signature
Date
Verified by Client’s site engineer:-
Name
Signature
Date