Electrical Pigtails
Q. When does the electrical code require pigtails for connecting devices in residential wiring?A. Ben Giles, licensed electrician and owner of
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The best method is to use a bare fiber adapter on the power meter to measure the output of the bare fiber, then attach the splice. Alternately, have the splice attached on the pigtail and couple a fiber to the pigtail with the splice and measure the power. There are two reasons we may want to test bare fiber, by that we mean fiber that has not been terminated in connectors but is simply plain optical fiber, The first one is to ensure the fiber or cable being manufactured meets its specifications, as is done by every manufacturer. When conducting pigtail tests, a 1-km launch reel (sometimes referred to as a load coil) will be used in conjunction with the OTDR. As we all know, in order to ensure the quality of optical cables and ensure that the optical cables can transmit communication models normally after installation, single reel inspection and reel matching must be carried out before the optical cables are laid, and strict inspections must be carried. If it's a long outside plant cable with intermediate splices, you will probably want to verify the individual splices with an OTDR test also, since that's the only way to make sure that each splice is good. If you are the network user, you may also be interested in testing transmitter and receiver.
