The Philippines is divided into three electrical grids, one each for Luzon, the Visayas and Mindanao. 4: A two-family dwelling or a multifamily dwelling shall be permitted to have one set of service-entrance conductors installed to supply the circuits covered in 2.10.2.7. 2.30.4.4 Wiring Methods for 600 Volts, Nominal, or Less. We feel it’s best to buy product designed for the local market and electrical systems. We have seen Filipinos using 120v power tools, dragging around a step-down transformer. Service heads and goosenecks in service-entrance cables shall be located above the point of attachment of the service-drop conductors to the building or other structure. Where necessary to prevent tampering, an automatic overcurrent device that protects service conductors supplying only a specific load, such as a water heater, shall be permitted to be locked or sealed where located so as to be accessible. 2.30.7.4 Protection of Specific Circuits. For the purpose of this section, disconnecting means used solely for power monitoring equipment, transient voltage surge suppressors, or the control circuit of the ground-fault protection system or power-operable service disconnecting means, installed as part of the listed equipment, shall not be considered a service disconnecting means. The breakers for the U.S. are generally rated at 120-240v. We had to pay for the duplex wire extending from the meter to our house. B. LEGEND AND SYMBOLS. The grounded conductor shall not be less than the minimum size required by 2.50.2.5(c). With this simple set-up, power from the generator flows to all circuits. This equipment is considered as additional protection, while the next disconnecting means mentioned in 2.30.6.1(a)(1) shall still be considered as the service equipment. Generally we don’t use it, but can if we feel the need. Philippine Electrical Wiring – Building our Philippine House. Our residence is located in a rural location served by an electrical cooperative so we have a 230V two wire electrical supply. RSC… Single-pole circuit breakers, grouped in accordance with 2.30.6.2(b), shall be considered as one protective device. Where installed over a combustible floor, suitable protection thereto shall be provided. The conductors shall not be smaller than 8.0 mm2 (3.2 mm dia.) Mark Anthony Dusal. Although this wire is rated to handle 20 amps, we decided to use mostly 15 amp breakers. The meter-to-house wire is referred to as “duplex cable”. READ PAPER. TYPES OF ELECTRICAL SERVICE IN THE PHILIPPINES. Energized parts shall be enclosed so that they will not be exposed to accidental contact or shall be guarded as in 2.30.5.1(b). (For industrial machinery, see industrial and multiphase power plugs and sockets. They are not fully applicable to urban areas using two 110 volt load wires (including Manila) or to systems around former American military bases. See Mike Holt’s discussion at http://www.mikeholt.com/mojonewsarchive/GB-HTML/HTML/Neutral-to-GroundConnections~20020521.htm, Appliance cord with unpolarized plug and ground lead. We cut the links on the handles and wired up our panel box. NFPA 78, Guide on Electrical Inspections. the electrical service power is 1-phase, 2-wire, 230 v ac, 60 hz. Our pole-mounted meter. The test shall be conducted in accordance with instructions that shall be provided with the equipment. Energized parts of service equipment shall be enclosed as specified in 2.30.5.1(a) or guarded as specified in 2.30.5.1(b). When embedded in the floor or block walls, the conduit is 25mm rigid plastic. Exception No. Power from our utility comes in at the top of the switch. Service-drop conductors, where not in excess of 600 volts, nominal, shall have the following minimum clearance from final grade: The point of attachment of the service-drop conductors to a building or other structure shall provide the minimum clearances as specified in 2.30.1.9 and 2.30.2.3. On the two wire systems they can use either single or double-pole breakers. An added ground bus in a panel box. Now to follow the wiring from this point to the panel or circuit breaker box. Exception No. In the Philippines, the branch circuit wires are generally run from panel box to outlet to in plastic conduit. This simple model is appropriate for DC systems but does not work for an AC system because the flow of the power is continually reversing direction with a frequency of 50 or 60 times per second. We would use single pole breakers protecting the load wires and tie the neutrals to a separate neutral bus. Exception No. Wage rates are negotiable and far more reasonable than in your home country. 1: The ground-fault protection provisions of this section shall not apply to a service disconnect for a continuous industrial process where a nonorderly shutdown will introduce additional or increased hazards. Open conductors shall be attached to fittings identified for use with service conductors or to noncombustible, nonabsorbent insulators securely attached to the building or other structure. If you had seen two black wires and a neutral leading from the pole to the house, you’re probably dealing with a three wire 120/240V system. We bought this industrial duty switch after having a couple of hardware store electronic timer switches fail. If you are going to use stranded wire you have to be sure to buy switches and outlets designed for stranded wire. The silver protrusions are the tops of recessed lighting. The second number indicates the number of conductors. NECA 120-2018 Standard for Installing Armored Cable (Type AC) and Type Metal-Clad (MC) Cable This standard covers the identification, selection and installation of Type AC and Type MC cables, which are used for electrical wiring for residential, commercial and industrial occupancies. There are 17 electrical standards suppliers, mainly located in Asia. There are two main types of residential electrical service in the Philippines. (b) Single-Pole Units. The legend or symbols shall show symbols or configurations and figures of devices and equipment used. Wiring is in flexible plastic conduit. 1: The service switch shall be permitted on the supply side. 2.30.5.1 Service Equipment — Enclosed or Guarded. Even with a 100 amp panel box, at 230 volts we have an almost 25KW capacity, far in excess of any load we can possibly use. Our electricians were astounded that we were using such heavy cable in a residence. (a) General. Service conductors installed as open conductors or multiconductor cable without an overall outer jacket shall have a clearance of not less than 900 mm from windows that are designed to be opened, doors, porches, balconies, ladders, stairs, fire escapes, or similar locations. Our electricians used them but cut off strands of wire so that they would fit into the switches. The best approach may be to cut the original 2-prong plug off of the appliance cord and install a grounded plug, making sure that the polarity is correct. This article covers service conductors and equipment for control and protection of services and their installation requirements. A FIELD GUIDE TO ELECTRICAL SYSTEM IDENTIFICATION. For our purposes let’s call the three wire urban systems as “three wire 120/240V systems” and the two wire systems as “two wire 230V systems”. » Learn More Normally, utility power flows through the DPDT switch to the panel box. wire gauge size chart All electrical work shall be done under the direct and immediate supervision of a duly licensed Electrical Engineer. Where a service mast is used for the support of service-drop conductors, it shall be of adequate strength or be supported by braces or guys to withstand safely the strain imposed by the service drop. Where a building or structure is supplied by more than one service, or any combination of branch circuits, feeders, and services, a permanent plaque or directory shall be installed at each service disconnect location denoting all other services, feeders, and branch circuits supplying that building or structure and the area served by each. Exception: Type MI and Type MC cable shall be permitted within 3 000 mm of grade level where not exposed to physical damage or where protected in accordance with 3.0.1.5(d). Most breakers are designed so they can still trip even if the lever is held or locked in the “on” position. Fortunately, grounded outlets are readily available and that’s what we used. Presumably, breakers made to be used as single-pole provide both protections in a single breaker, as do double-pole breakers used as a unit. Electrical Wire Color Code China Brilliant Ieee Wire Color Code Wire. Service-entrance conductors installed above ground shall be protected against physical damage as specified in 2.30.4.11(a) or (b). Always ask for a discount, especially if you are buying in quantity. Exception: For jacketed multiconductor service cable without splice. We paid about P17 per meter for this cable at Western Lamp, an electrical supply house in Iloilo City. The knife switch normally delivers utility power to the main buses of the panel box via #2 AWG (30mm²) cable. The electricity sector in the Philippines provides electricity through power generation, transmission, and distribution to many parts of the Philippines. Exception: A grounded conductor shall be permitted to be uninsulated as follows: Service-lateral conductors shall have sufficient ampacity to carry the current for the load as calculated in accordance with Article 2.20 and shall have adequate mechanical strength. It’s easy to do before the concrete is poured and very difficult afterwards. Step-down transformer. The two have to be spliced together at the weather head. Because the capacity of the generator is limited, less than what’s available from the utility company, we check to see that high consumption circuits (mostly air conditioning) are not on when we start the generator. There is lots of poor quality electrical gear sold in the Philippines. Since we found that single pole breakers were not available for our plug-in panel box, we looked at double pole breakers and they seemed to be two single pole breakers tied together. Since bare feet on tile are a pleasure of Philippine retirement, this is best avoided. A written record of this test shall be made and shall be available to the authority having jurisdiction. These lamps are made to illuminate highway tunnels. Stranded wire has a larger diameter than solid wire of the same capacity and therefore will not fit properly into most outlets and switches. 1: Ground-fault protection that functions to open the service disconnect affords no protection from faults on the line side of the protective element. It was our electrical engineer who specified using stranded rather than solid wire for our branch circuits. The one or more additional service disconnecting means for fire pumps, emergency systems, legally required standby, or optional standby services permitted by 2.30.1.2 shall be installed remote from the one to six service disconnecting means for normal service to minimize the possibility of simultaneous interruption of supply. 2: Fuses and circuit breakers with a rating or setting that conforms with 2.40.1.4(b) or (c) and 2.40.1.6 shall be permitted. The grounded conductor shall not be less than the minimum size as required by 2.50.2.5(c). We also saw crude copies of GE breakers labeled as “American”. First, some background. This allows us to safely work on the panel box without having the utility company remove the meter. (9) Fusible disconnect switch or circuit breaker as deemed necessary. Now we can discuss wiring “branch” circuits. It’s unknown which side may provide over current protection. Whats people lookup in this blog: Philippine Electrical Code Wire … In essence, then, two of the three wires at the wall receptacle are actually grounded wires, one being used for power flow, and the other connected only to exposed metal parts on the equipment. Where embedded in masonry, raceways shall be arranged to drain. This was just a photo to show the Meiji receptacle. The Philippine 230v two wire system is called a multi-ground system because it depends on a distribution ground provided by the utility company and a protective ground at each panel box. They shall be permitted for over 600 volts, nominal, where specifically permitted elsewhere in … When you touch them with bare feet on a tile, you become the ground. A fifteen amp breaker (and a #12 AWG wire) have a nominal capacity of 1,800 Watts on a 120v circuit and 3,450 watts on our 230v system. It shows how the electrical wires are interconnected and can also show where fixtures and components may be connected to the system. However, if you have a 230v two wire supply, you will use one of the buses as a load bus and the other as a neutral bus. Actuator lever – used to manually trip and reset the circuit breaker. Wiring and Protection/Article 2.20 - Branch-Circuit, Feeder, And Service Calculations, PEC:Philippine Electrical Code 2009 Part 1/Chapter 2. Drip loops shall be formed on the conductors before they enter the tubes. Connections that depend on solder shall not be used. Almost all U.S. residential single pole breakers are made for circuits with 120v loads. As with our other writings, we do our best to chronicle our missteps as well as our successes, so that our readers get slice of reality about coming to the Philippines and building a house, not a fairy tale. Just remember that electrical plugs in the U.S. and the Philippines look the same, but the first time you plug your 120v gadget into a 230v circuit, will likely be the end of that item. 1, 3, 4, or 5, shall consist of not more than six switches or sets of circuit breakers, or a combination of not more than six switches and sets of circuit breakers, mounted in a single enclosure, in a group of separate enclosures, or in or on a switchboard. We are far from being panel box experts, but we will share our experiences. It’s best to hire an electrical engineer to do your plan (you will need it for your building permit), and have good electricians to do the work. We suspect that a very small percentage of these are ever connected. These photos show how wiring is installed in the attic or ceiling area. 3: Where ground-fault protection is provided for the service disconnect and interconnection is made with another supply system by a transfer device, means or devices may be needed to ensure proper ground-fault sensing by the ground-fault protection equipment. In the meantime, keep in mind that ordinary circuit breakers are not intended to protect humans from many of the most common types of shock hazards. Ground-fault protection of equipment shall be provided for solidly grounded wye electrical services of more than 150 volts to ground but not exceeding 600 volts phase-to-phase for each service disconnect rated 1000 amperes or more. All of these must be anticipated and conduit leading outside installed before the house floor is poured. An automatic system would improve security at times when power goes out at night and one has the choice of going outside in the middle of the night to start the generator or to stay inside a dark house, hoping the security lights, air conditioners and fans will come back on soon. It’s remarkable how little consensus there is, even among those who are knowledgeable about wiring. Locknut& bushing pcs 7.80 20mm dia. The service disconnecting means shall plainly indicate whether it is in the open or closed position. Our theory is that a thin layer of grease from the kitchen went up through the recessed fixtures and coated the wires. Most (but not all) switches and outlets are labeled as to the type and size of wire they can accommodate. Regardless of the voltage of the electrical system, the electrical continuity of non– current-carrying metal parts of equipment, raceways, and other enclosures in any hazardous (classified) location as defined in Article 500 shall be ensured by any of the methods specified in 2.50.5.3(b)(2) through (b)(4) that are approved for the wiring method used. We hope this essay will be of help in making you a more knowledgeable home builder. This will provide a path from the panel box for the circuits in the ceiling, mainly light fixtures and ceiling fans. Where a service raceway enters a building or structure from an underground distribution system, it shall be sealed in accordance with Section 3.0.1.5(g). The genius of this system is that wires can be replaced (if necessary) by pulling them through the conduit embedded in the floors. This is sometimes referred to as “free trip” or “positive trip” operation. 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