Which is better a fast or a slow fuse link?

Some users prefer fast links to eliminate any possibility of damage to person or property. However, since a large percentage of faults are temporary, this contributes to nuisance outages. Many utilities have switched to more sophisticated system protection schemes that utilized both slow and fast fuse links with a view to minimize the number of outages experienced by customers while not exceeding the thermal capabilities of the systems hardware.

Switching & Fusing

  1. How do I determine the voltage rating of a fuse link?
  2. How do I determine the interrupt rating of a fuse link?
  3. What test reports are available for fuse links?
  4. Which is better a fast or a slow fuse link?
  5. Can CHANCE® fuse links withstand 150% of their rating continuously?
  6. Can I use a 65 A rated fuse link in a 200 A rated fuse holder?
  7. What is the difference between the solid head and removable head fuse links?
  8. Will CHANCE® fuse links work in all cutouts with arc shortening rods?
  9. Can we replace our 100 A rated fuse holder with the 300 A solid blade?
  10. Can I use CHANCE® fuse holders in the S&C cutout mounting assemblies?
  11. What is the Mechanical Assist Spring?
  12. What is the recommended torque for the terminal when connecting copper leads to a cutout?
  13. Do CHANCE® cutouts have bone fiber as the arc quenching material?
  14. What is an arc shortening rod?
  15. Can I use a 27kV 150 kV BIL cutout on a 34.5 kV system?
  16. What is the difference between the Link Break and Load Break cutouts?
  17. Does CHANCE® make a Dual Vent cutout?
  18. Does CHANCE® make a Fuse Link specifically for Transformer Protection?
  19. Is additional creep or leakage distance on cutout designs only necessary near coastal areas?
  20. Can cutouts be used anywhere on an electric distribution system?
  21. What is the voltage rating of the Type QH and Type STH fuse links?
  22. What is the interrupt rating of the Type QH and Type STH fuse links?
  23. What test reports do you have for Type QH and Type STH fuse links?
  24. Are there special applications for the Type QH and Type STH fuse links?
  25. Are there any unique installation requirements for the Type QH and Type STH fuse links?
  26. Will the Type QH and Type STH fuse links be available in both the Solid Head and Removable Head versions?
  27. Will the Type QH and Type STH fuse links work with the cutouts that have the Mechanical Assist Spring option?
  28. Will the Type QH and Type STH fuse links work in all cutouts with arc shortening rods?
  29. Will the Type QH and Type STH fuse links be suitable for use in Link Break and Load Break cutouts?
  30. Can I use the CHANCE Type QH and Type STH fuse links in 200A fuse holders?

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