Connecting The Secondary Equipment - Siemens 8DJH Installation And Operating Instructions Manual
Medium-voltage switchgear
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Also See for 8DJH:
- Installation and operating instructions manual (174 pages) ,
- Operator's manual (2 pages) ,
- Operator's manual (2 pages)
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Installation
Wire routing
Fig. 49:
Wire routing with wiring duct on
the front operating mechanism
box
74/121
13.6
Connecting the secondary equipment
DANGER
Risk of injury by release of charged operating springs when the front cover of the operating
mechanism is removed! Bruises or cuts at the hands can be the consequence.
➭ To avoid impermissible switching operations, switch off auxiliary voltage, e.g.:
- Switch the auxiliary voltage supply of the motor.
- Trip the MCB.
- Disconnect the control cables from the low-voltage compartment.
➭ To discharge the spring energy store in the operating mechanism, perform the following
operations before removing the front cover:
- Actuate the OFF pushbutton.
- Actuate the ON pushbutton.
- Actuate the OFF pushbutton.
➭ The spring energy store indicator must show "spring not charged".
ATTENTION
Cables laid too close to the ready-for-service indicator can impair the function of the ready-for-
service indicator.
➭ When cables are laid, the transmission linkage of the ready-for-service indicator must
move freely.
Wires for secondary equipment can be laid to the side, to the rear or downwards.
For panel blocks, wire routing across panels is possible through the wiring duct on the
operating mechanism box (option) or through the front operating mechanism box. For
extendable switchgear, wire routing through the wiring ducts is recommended.
Fig. 50:
Wire routing through the
operating mechanism box
①
Wiring duct on the operating mechanism box (option)
②
Lateral wiring ducts (recommended wire routing downwards)
③
Wire routing through the operating mechanism box
④
Ready-for-service indicator
Revision 05 • INSTALLATION AND OPERATING INSTRUCTIONS • 8DJH • 500-8067.9
Fig. 51:
Wire routing in the
operating mechanism box
⑤
Fixing duct
⑥
Terminal strip
⑦
Customer-side wiring
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