Appendix B - Installation Planning Guides - Toshiba 4200FA Installation And Operation Manual

APPENDIX B – Installation Planning Guides
Important Notes:
1. Maximum Current required at Primary AC Input based on full load output and maximum battery
charging current.
2. Output load conductors are to be installed in separate conduit from input conductors.
3. Control wires and power wires are to be installed in separate conduits.
4. Recommended AC input and output overcurrent protection based on continuous full load current per
NEC.
5. Wiring shall comply with all applicable national and local electrical codes.
6. Grounding conductors to be sized per NEC Article 250-122. Neutral conductors to be sized per NEC
Article 310.15.
- Primary AC Input: 3φ, 4-wire + ground.
- AC Output: 3φ, 4-wire + ground.
- DC Input: 2-wire (Positive/Negative) + ground.
7. Power cable maximum size:
15/25/30kVA: #1 AWG
50kVA: 250 kcmil
80kVA: 500 kcmil, Battery Terminals – 600kcmil
8. Nominal battery voltage based on the use of VRLA type batteries (2.0 volts / cell nominal).
9. Maximum battery discharge current based on lowest permissible discharge voltage of 1.6 VPC.
10. DC wires should be sized to allow not more than a 2-volt drop at maximum discharge current.
11. Weights include internal batteries.
12. Sizing calculations based on the following assumptions:
- Not more than 3 current-carrying conductors installed in steel conduit in ambient temperature of 30
degrees C.
- Temperature rating of conductors and terminals: 75 deg. C.
- Feeder distance calculations based on NEC Tables 8 and 9 data, allowing for 2% AC voltage drop.
- Reference: 2002 NEC Handbook. Consult latest edition of applicable national and local codes for
possible variations.
13. Ratings of wires and overcurrent devices are suggested minimums. Consult with a
registered Professional Engineer within your local area for proper size selections.
TOSHIBA
4200FA Installation and Operation Manual
INTERNATIONAL CORPORATION
13131 West Little York Road
Houston, TX 77041
Telephone: 800.231.1412; 713.466.0277
Fax: 713.896.5212
Corporate Web Site: www.tic.toshiba.com
Group Web Site: www.toshibaups.com
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