4 connecting power cable and grounding caution, Power supply line to the protection system (a) (b) – Yokogawa GC8000 Process Gas Chromatograph User Manual

Page 139

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<2. Installation, Piping, and Wiring>

2-22

IM 11B08A01-01E

2.3.4

Connecting Power Cable and Grounding

CAUTION

• Wire the power supply cable keeping the distance of 1 cm or more from other signal wires.
• The power supply cable shall comply with UL or CSA.
• Do wiring after securing protective grounding.

Use crimp-on terminals for all power cables and grounding (see Figure 2.18).
Use crimp-on terminals suitable for the cable core (see Table 2.8).

Lug length c

Insulation covering
inside diameter d

Hole
diameter
a

Lug outside
diameter b

Figure 2.18

Crimp-on terminal

Table 2.8

Size of crimp-on terminal

Nominal cross

sectional area

Screw

(mm)

Hole

diameter a

(mm)

Outside

diameter b

(mm)

Length c

(mm)

Insulation

covering inside

diameter d (mm)

Applicable

terminal*

5.5 mm

2

4

4 to 5

9.8 or less

25 to 29

5.8 or less

AMP 170785-1

JST 5.5-4

2.0 mm

2

4

4.3 or more 8.7 or less

approx. 21

5.8 or less

AMP 170782-1

JST V2-4

1.25 mm

2

4

4.3 or more 8.7 or less

approx. 21

5.8 or less

AMP 170782-1

JST V1.25-4

*:

AMP: Japan AMP Co., Ltd.

JST: JST Co., Ltd.

Power supply line to the protection system (A) (B)

The power supply to protection system A is used for both heater power and electric circuit power.
The power supply or protection system B is used only for heater power.
Connect the attached ferrite core for ATEX or IECEx.
Grounding must be wired.

2nd Edition : May 11, 2012-00

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