What are the possible ratings of a fuse wire used?
The standard voltage ratings used by fuse manufacturers for most small- dimension and midget fuses are 32, 63, 125, 250 and 600.
What type of wiring was used in 1955?
Knob-and-tube wiring was the wiring method of choice for homes until, and in many areas, through the 1950s. Knob and tube wiring was a two-wire system that was quick and easy to install.
Do old homes have ground wires?
Luckily, metal boxes attached to armored, or BX, cable—a type of wiring commonly found in old houses—generally are grounded; the cable’s flexible metal jacket serves the same purpose as a dedicated ground wire.
What was the lifespan of sheathed wire in the 1940s?
It also had its drawbacks due to the lack of a ground wire, but its development would eventually lead to major innovation. Early sheathed cable, however, also has an expected lifespan of about 25 years, and where it is still in use, such installations need to be upgraded. The 1940s brought the age of metal conduit.
How big of a fuse do I need for a 6A?
13A fuse – 0.75 sq mm flex upwards (max rating of appliance or extension lead etc then dependent on flex size, from 6A max at 0.75 sq mm, up to 13 A at 1.25 or 1.5 sq mm). Note that there is no lower limit on the ratings – so most appliances/leads etc. these days have 0.75 sq mm flex or greater, and a 13 A fuse – meets all requirements.
What kind of electrical wiring was used in the 1920s?
In the 1920s to 1940s, electrical installations took a turn to a more protective wiring scheme—flexible armored cable.
Which is the correct fuse size for an extension lead?
Just had a quick flick through the code of practice and under extension leads there is no mention of fuse sizes. Under appliance flexes the comment is made the 3A fuse has a minimum flex csa of 0.5 and a 13A fuse has a minimum flex CSA of 13A. To my mind an extension lead should be fused to 13A if it has the correct csa of flex.
How big should a fusible fuse wire be?
Odd number wire gauge sizes like 19, 15, 13 and 11 are counted when sizing a link. The length of a fusible link should not exceed 9″. Can a fusible link be used to replace a fuse that blows frequently?
What kind of wire is protected by fusible link?
Typically, a given harness segment is protected by fusible link that is four gauge numbers smaller. A 14-gauge wire would be protected by an 18-gauge fusible link. A 6-gauge wire would be protected by a 10-gauge link, and so on. Odd number wire gauge sizes like 19, 15, 13 and 11 are counted when sizing a link.
What should gauge and length of fusible link wire be?
The automotive service industry recommends using the same gauge and length as the blown fusible link after the cause of failure is corrected. There is some specific engineering that goes into determining what gauge and length of fusible link wire is used.
How many times should a fuse be rated?
For your fuse to do its job correctly and protect your wires, it should be rated about 1.1 to 1.5 times the rated current value. It’s also a great idea to get an ATC fuse holder to protect and mount your fuse.