A wide variety of electrical tapes is available; some for highly specialized purposes. Electricians generally use only black tape for insulation purposes. The other colours are used to indicate the voltage level and phase of the wire. (In fact, the coloured tape is referred to as "phasing tape".) This is done on large wire which is available only in black insulation. When wires are phased, a ring of tape is placed on each end near the termination so that the purpose of the wire is obvious. The following table describes this usage.
|Tape colour||Usage (US)||Usage (UK)||Usage (International – new)|
Low voltage, phase A
Low voltage, neutral
|Low voltage, phase B|
|Red||Low voltage, phase B||Low voltage, phase A||Sheath, 415 V 3 phase|
|Blue||Low voltage, phase C||Low voltage, phase C||Low voltage, neutral
Sheath, 230 V
|Brown||High voltage, phase A||Low voltage, phase A|
|Orange||High voltage, phase B||Sheath, garden tools|
|Yellow||High voltage, phase C||Low voltage, phase B||Sheath, 110 V site wiring|
|Green with yellow stripe||Isolated ground||Earth|
|Grey||Low voltage, neutral
High voltage, neutral
|Low voltage, phase C|
|White||Low voltage, neutral
High voltage, neutral
Tape that is approved for electrical applications will carry an approval label from an agency such as Underwriters Laboratories.
Read more about this topic: Electrical Tape
Other articles related to "varieties":
... The clustered flowers of the acidic varieties are purplish tinted from outside, but the sweet ones are white-yellowish ... The acidic varieties include the Florentine and Diamante citron from Italy, the Greek citron and the Balady citron from Israel ... The sweet varieties include the Corsican and Moroccan citrons ...
... Several varieties of grape are known to have originated in Hungary ... Ezerjó Hárslevelű Irsai Oliver Cserszegi Fűszeres Királyleányka Other varieties of grape that may have originated in Hungary include Furmint Juhfark Kéknyelű ...
... is possible that the damson developed directly from forms of sloe, perhaps via the round-fruited varieties known as bullaces, and that the cherry plum ... refer to them in English, but many of the English varieties from which the name "damson" was originally taken have both a different typical flavour and pear-shaped (pyriform) appearance compared to continental forms ... a distinction developed between the varieties known as "damascenes" and the (usually smaller) types called "damsons", to the degree that by 1891 they were the subject of a lawsuit when a ...
... General characteristics of family members include a compressed body, ridges and/or spines on the head, one or two spines on the operculum, and three to five spines on the preopercle ... The dorsal fin will have 11 to 17 spines, often long and separated from each other, and the pectoral fins will be well-developed, with 11 to 25 rays ...
... Over the following centuries, new grape varieties were brought in from Italy and France. 1699, the Germanic influence was felt with the introduction of grape varieties such as Blauer Portugieser ... often of Blaufränkisch (Kékfrankos) and the Bordeaux varieties in red wine districts, and of Furmint, Muscat and Hárslevelű in Tokaj ...
Famous quotes containing the word varieties:
“Now there are varieties of gifts, but the same Spirit; and there are varieties of services, but the same Lord; and there are varieties of activities, but it is the same God who activates all of them in everyone.”
—Bible: New Testament, 1 Corinthians 12:4-6.