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PANEL ''A'': Conductors (Cu. Wire) Raceway Quantity Remarks

The document provides specifications for an electrical panel including its designation, mounting location, connected load details, overcurrent protection details, and notes about upgrading main protection and calculating primary line current based on secondary values.

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kenneth molina
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50 views1 page

PANEL ''A'': Conductors (Cu. Wire) Raceway Quantity Remarks

The document provides specifications for an electrical panel including its designation, mounting location, connected load details, overcurrent protection details, and notes about upgrading main protection and calculating primary line current based on secondary values.

Uploaded by

kenneth molina
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as PDF, TXT or read online on Scribd
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Designation : PANEL ''A'' Mounting: SURFACE MOUNTED

System : Enclosure: NEMA - 12


Location : ELECTRICAL ROOM Feed: TOP

CONNECTED LOAD OVERCURRENT CONDUCTORS


CKT. PROTECTION (CU. WIRE) RACEWAY QUANTITY REMARKS
LOAD DESCRIPTION AMPERE
NO. VA
AT AF P SIZE (MM2) TYPE SIZE TYPE CO LIGHT MOTOR
1 PANEL A1 108790 268.1 24.9 13.1 13.1 50 100 3 3-50 + 1-14 (G) THHN CABLE TRAY

2 ECB-A2 18844 39.9 20 25.7 50 100 3 3-22 + 1-8.0 (G) THHN PVC

TOTAL 108790 268.1 64.8 33.1 38.8

UPGRADE MAIN
= [ 268.1+(1.732 X 64.8) A ] X 0.8DF + (0.25 X 69) EXISTING PROTECTION: 300AT/400AF, 3P,500V, 60HZ BOLT-ON, MCCB
IT DEMANDED LINE CURRENT: PROTECTION TO
= 321.8 AMPS EXISTING SUB-FEEDER: 2 SETS 3 - 100MM2 THHN + 1 - 14MM2 THHN (G) IN 50MM DIA. CONDUIT 400A, 3P

NOTE: PANEL A1 PRIMARY LINE CURRENT IS MULTIPLIED BY


SECONDARY TO PRIMARY VOLTAGE RATIO OF DRY TYPE
TRANSFORMER (380V/220V) (Vs/Vp = Ip/Is)

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