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SEMI E31-93 © SEM I 1993 3 APPE NDIX Examples of Wire Conne ction of Power Supply in Japan Examples of Wire Conne ction of Power Supply in United States (Refer ence) Note s: White w ire co nnecte d at the grounde d side.…

SEMI E31-93 © SEMI 1993 2

4 Electrical Connectors (sh own as receptacle)

Note: Direct terminal connections are used for most fixed facilities and loads, which require higher current than the value

specified above. 30A/250V shows at reference which is specified by the NEMA standards L6-30R and L15-30R.

5 Cable Current Tolerances

Key:

VV Vinyl insulation, vinyl sheathed cable

CV Construction polyethylene insulation, vinyl sheathed

cable

JCS 168C-73 Unit (A)

1.0Ø 2.0Ø 2sq 3.5sq 5.5sq 8sq 14sq 22sq

VV*1114192838476791

** 10 12 18 25 33 42 60 79

*** 9 10 15 22 29 37 53 70

CV*162333465974105135

** 17 20 28 40 52 66 94 125

***14172434455679105

* Single Conductor Three Cables

** Twin Conductors One Cable

*** Three Conductors One Cable

Note: The above specification is for cable in conduit in air.

Current tolerance of CV is different than that of VV due to the

difference in temperature tolerances (VV/60°C and

CV/90°C).

Ø: Diameter of Conductor (mm)

Sq: Cross-Sectional Area of Conductor (mm2)

SEMI E31-93 © SEMI 19933

APPENDIX

Examples of Wire Connection of Power Supply in Japan

Examples of Wire Connection of Power Supply in United States (Reference)

Notes: White wire connected at the grounded side. [White is also used for a neutral line (grounded side) in the U.S.] A single green wire other

than a cable is typically used for ground. In the case of a single wire, sometimes a black wire is substituted for blue. - - - - indicates that the wires

are normally grounded, with some exceptions. There are no special rules regarding colors of wires except a wire used for ground (green).

However, the figure shows common examples in Japan.

SEMI E31-93 © SEMI 1993 4

NOTICE: These standards do not purport to address

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