Busbar Installation - Samsung 136S Installation Manual

3.9.3 Busbar Installation

Connect the power busbars between modules
Verify with a voltmeter that no power is present on the
system. Use lock out/tag out procedures to secure the
UPS and batteries.
CAUTION
Please follow the instructions to protect the module BMS against damage.

Important: DO NOT deviate from the sequence of steps below.
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The system's voltage will increase proportionally as battery modules are connected.

Exercise extreme caution prevent the terminals from contacting anything except their
intended mounting points.
Terminals and their connected wires have either positive or negative polarity (Positive:

B+, P+; Negative: B-, P-). The polarity of a terminal or a wire connected to the terminal
is on the front of each module and switchgear. Exercise extreme caution to prevent the
terminals and/or wires with opposite polarity from contacting with each other.
It is recommended not to touch the battery positive(+) or negative(-) terminal for the

batteries with rack frame. There is no evidence of dielectric breakdown because of
electrical isolation between the battery positive (+) or negative (-) terminals and rack
frame. However, it is recommended not to touch them for safety because It is possible
to touch between battery positive (+) and negative (-) through the rack frame.
NOTICE
Connect the power busbar with an M8 screw for battery module terminals


When tightening the screws, make sure they are at a straight angle from the
battery module terminals to avoid damage to the nuts inside.
First, assemble the screws using a Phillips-head tip screwdriver using fastening torque

of less than 5.1 Nm (45 in lbs).
Then, use an insulated torque wrench extension with a 13 mm socket. Use fastening

torque of 8.16–11.94 Nm (72–105 in lbs).
NOTICE
Connect the power bus-bar with an M12 screw for switchgear terminals


When tightening the screws, make sure they are at a straight angle from the
switchgear terminals to avoid damage to the nuts inside.
The fastening torque should be 30 Nm (265 in lbs)

Use an insulated torque wrench extension with a 19 mm socket.

Important
The power terminals, such as ―B+,‖ ―B-,‖ ―P+,‖ and ―P-,‖ of the module and Switchgear

are covered with the power terminal cover to guard against a short circuit.
At each step in this process, you must remove the cover prior to connecting a power

busbar and reattach the cover immediately after connecting the power busbars.
ET003222373 English 4/2018. Rev 0.0
.
Assembling the Product
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