line tester - definição. O que é line tester. Significado, conceito
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O que (quem) é line tester - definição

DEVICE FOR DETECTING VOLTAGE
Test lamp; Neon tester; Neon test lamp; Mains tester; Electrical tester pen; Test pen; Tester screwdriver; Voltage tester; Voltage detector; AC detector; Non-contact voltage detector; Line tester; Non-contact voltage tester
  • UK GS38-compliant test lamp, with separately-fused test prods and current-limiting resistor, suitable for use up to 1000V
  • Neon screwdriver test light in use. Current flows through a high ohm resistor and the lamp and the distributed capacitance and resistance of the user's body.
  •  A voltage tester with three lamps to give an approximate indication of voltage magnitude
  • Non-Contact AC Voltage Detector
  • Neon-lamp type tester, which has no amplifier; this type requires a direct metallic contact to the circuit to be tested.

H. E. Tester         
  • The cover of ''Denmark's numeral cancellations 1852-1884'' by Tester and Hansen.
DANISH CHEMIST AND PHILATELIST
H.E. Tester
Henry E. Tester (1905 – 31 January 1986) was a Danish chemist and philatelist who, in 1982, with Sigurd Ringström, was awarded the Crawford Medal by the Royal Philatelic Society London for parts I and II of The private ship letter stamps of the world.
tester         
WIKIMEDIA DISAMBIGUATION PAGE
Tester (disambiguation)
(testers)
1.
A tester is a person who has been asked to test a particular thing.
N-COUNT
2.
A tester is a machine or device that you use to test whether another machine or device is working properly.
I have a battery tester in my garage.
N-COUNT: usu n N
Tester         
WIKIMEDIA DISAMBIGUATION PAGE
Tester (disambiguation)
·noun A headpiece; a helmet.
II. Tester ·noun A flat canopy, as over a pulpit or tomb.
III. Tester ·noun A canopy over a bed, supported by the bedposts.
IV. Tester ·noun An old French silver coin, originally of the value of about eighteen pence, subsequently reduced to ninepence, and later to sixpence, sterling. Hence, in modern English slang, a sixpence;
- often contracted to tizzy. Called also teston.

Wikipédia

Test light

A test light, test lamp, voltage tester, or mains tester is a piece of electronic test equipment used to determine the presence of electricity in a piece of equipment under test. A test light is simpler and less costly than a measuring instrument such as a multimeter, and often suffices for checking for the presence of voltage on a conductor. Properly designed test lights include features to protect the user from accidental electric shock. Non-contact test lights can detect voltage on insulated conductors.