Protection components: Difference between revisions
(Created page with "This page covers devices for protection against excessive currents, voltages and temperatures. ==Summary== All pages should start with a summary, to enable the reader to see a...") |
No edit summary |
||
| Line 1: | Line 1: | ||
This page covers devices | This page covers protection devices. | ||
==Summary== | ==Summary== | ||
Various devices provide protection against excessive and potentially dangerous or damaging currents, voltages or temperatures. Some are single-use and must be replaced when blown but others are self-resetting. | |||
===Safety=== | ===Safety=== | ||
[[File:Warning03.png|30px|left]] | [[File:Warning03.png|30px|left]] | ||
::Protection devices protect you against fire and malfunction and may limit | ::Protection devices protect you against fire and malfunction and may limit collateral damage following an initial fault. They must always be replaced by a device with a similar (ideally, identical) rating, and must never be bypassed or deactivated. | ||
==Introduction== | ==Introduction== | ||
Revision as of 20:48, 10 October 2017
This page covers protection devices.
Summary
Various devices provide protection against excessive and potentially dangerous or damaging currents, voltages or temperatures. Some are single-use and must be replaced when blown but others are self-resetting.
Safety
- Protection devices protect you against fire and malfunction and may limit collateral damage following an initial fault. They must always be replaced by a device with a similar (ideally, identical) rating, and must never be bypassed or deactivated.
Introduction
The commonest and most familiar protection device is the fuse, which prevents an excessive and potentially dangerous current from flowing, but devices also exist to absorb an excessive voltage which might cause damage or malfunction, as well as to cut the supply in the case of overheating, such as a kettle boiling dry.
Fuses
Conventional wire fuses
Polyfuses
Over-voltage Protection
Varistors
Spark gaps and neons
Suppressor capacitors
Thermal fuses
Single-use thermal fuses
Resetable thermal fuses
External links
- External links (if any) as bullet points.
- If non, delete this section.