Philippine Electrical Code – Number of Supplies
Section 2.25.2.1 of the Philippine Electrical Code specifies that incoming supply to a building or other structure shall be supplied by only one feeder. 2.25.2.1 Number of Supplies. Number of …
When Standards is Withdrawn
When a Current Standard is not Available Engineers are dependent on standards to ensure that their designs are compliant to the current standards.The dilemma of engineers is when the current …
Philipine Electrical Code – Is Design Analysis Required for Dwelling Units?
The Philippine Electrical Code has provisions for safe and reliable application of overcurrent protective devices based on short circuit study and a selective coordination study. Design Analysis Requirement Section 1.3.2.1(F) …
Philippine Electrical Code – Temperature Limitation of Conductors
Temperature Limitation – PEC Section 3.10.1.10 No conductor shall be used in such a manner that its operating temperature exceeds that designated for the type of insulated conductor involved. In …
Conductors in Parallel in Acccordance with the Philippine Electrical Code
Provision in Philippine Electrical Code Section 3.10.1.4 Conductors in Parallel, states that aluminum, copper-clad aluminum, or copper conductors of size 50 mm² and larger, comprising each phase, polarity, neutral, or …
Philippine Electrical Code – Multifamily Dwelling Unit, 400/230 Volts Three-Phase 4-Wire Service
This calculation is a continuation of the previous example. The single family dwelling has the same area and household appliances. The number of dwelling units however is increased to 40 …