Grounded System In a grounded system, the primary function of the main bonding jumper and of the system bonding jumper is to create the link for ground-fault current between the …
According to Philippine Electrical Code 2017 Section 2.50.3.3(A)(3) lists “Concrete-Encased Electrodes” as one of the types of electrodes permitted for grounding. (3) Concrete-Encased Electrode. A concrete-encased electrode shall consist of …
Hazardous area is defined in IEC 60079 as an area in which an explosive gas atmosphere is present, or may be expected to be present, in sufficient quantities to require …
Required Protective Clothing The Philippine Electrical Code 2017 Edition requires switchboards, panelboards, motor control centers, and other equipment in locations other than dwelling units to be individually field marked with …
Lightning is a very high-energy phenomenon. Lightning protection is oftentimes taken for granted as the probability of a lightning strike to a structure is low, and damage to properties and …
Rolling Sphere Method The Rolling Sphere Method is a popular and acceptable method of implementing lighting protection on structures. In the Philippine Electrical Code, the rolling sphere method is mentioned …