Appendix S - SaskPower Electrical Service Requirements

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Section 2.2Technical Requirements For Service Up to and Including 5 kVFARM2272.2.5.2.4 Transformer-Rated Meter SocketsMeter sockets shall be:• configured and wired as per Figures 2-23 (5) & (7) and Figure 2-25 (1), (3) & (4), and installed as per Figure2-8.• complete with a ground connection.• within a circuit length of 11 metres from the instrument transformer enclosure. Exceptions require priorapproval from SaskPower, Metering Services.• located outdoors.2.2.5.2.5 SpecificationsSingle Phase Buried Service• 400 A, 120/240 V Self-Contained Meter Socket (Figure 2-4)The enclosure shall:• have stud type line and neutral terminals so arranged as to permit straight in conductor connectionsand suitable for securing SaskPower compression lugs.• have minimum dimensions of 914 x 508 x 203 mm (36 x 20 x 8 inches).• be capable of using 78 mm (3 inch) conduit.The Consumer shall install the SaskPower supplied 3-wire current transformer. SaskPower shall make allterminations to the secondary of the current transformer.A single meter socket, rated up to 400 A, with dual wire connectors on the load side shall be permitted twosubdivisions. However, the subdivision of the consumer service can be accomplished within the dual lugmeter socket provided that the total ampere rating of the two consumer service disconnects does not exceed theampere rating of the meter socket.For supply service conductors exceeding 500 kcmil, or multiple conductors per phase, a splitter shall be used inconjunction with the meter socket. The splitter becomes SaskPower’s point of delivery.2.2.5.3 Instrument Transformers & Enclosures2.2.5.3.1 GeneralWhen the main service exceeds 200 A or 600 V, and the metering is not at SaskPower’s facilities, the instrumenttransformer enclosure shall be supplied and installed by the Consumer. For service voltage at 4160 V, the Consumershall supply and install the instrument transformer enclosure and meter socket.Revenue metering instrument transformers and other associated equipment supplied by SaskPower shall be usedexclusively for the purpose of SaskPower revenue metering.Electric Service Requirements November, 2004
228Section 2.2Technical Requirements For Service Up to and Including 5 kVFARM2.2.5.3.2 Instrument TransformersWhen the Consumer supplies the instrument transformer enclosure, the instrument transformers shall be installed:• and connected by the Consumer as per Figure 2-25.• to permit the complete removal or installation.• using all manufacturer’s mounting holes.• such that the name plates are clearly visible.2.2.5.3.3 Instrument Transformer EnclosuresWhen the Consumer supplies the instrument transformer enclosure, it shall:• be equipped with a hinged door with provision for padlocking and sealing by SaskPower.• contain mounting plates or other acceptable means for securing the transformers.• have an insulated splitter block provided for neutral conductors.• be of the dimensions as per Table 2-2 (for services not utilizing bar type buss structure).Instrument transformer enclosures shall:• be located either indoors or outdoors.• be immediately adjacent to and on the load side of the individual Consumer's main service disconnect.• be readily accessible for testing or replacement of instrument transformers.• contain only SaskPower instrument transformer(s) and associated Consumer conductors.• not be used as a splitter for other Consumers.• be installed as shown in Figure 2-8.2.2.5.3.4 Conduit and Secondary Wiring RequirementsWhen the Consumer supplies the instrument transformer enclosure, the Consumer shall supply and install:• a continuous run of conduit (minimum 35 mm (1¼”) diameter) for the exclusive use of SaskPower between theinstrument transformer enclosure and the meter enclosure (to a maximum circuit length of 11 metres).• sealable LB fittings or similar conduit fittings, if required.• the bond on the meter socket when PVC conduit is used.SaskPower shall supply and install:• a continuous run of secondary conductors in the Consumer supplied conduit between the instrumenttransformers and the meter test switch (such that there are no splices or interruptions).• the test switch and the meter.November, 2004Electric Service Requirements
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Appendix S - SaskPower Electrical Service Requirements

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