Can Star washers be used for bonding?
PE GROUND CONNECTIONS SHALL: 1) Use toothed star washers for safety bonding under a ring-lug or other device to be grounded. 4) All star washers shall be steel (not copper, brass or bronze). 5) Non-conductive coatings such as paint and anodize shall be removed in the area of the star washers.
When should a star washer be used?
Internal use lock washers have teeth made to bite into the nut/screw head and surface it contacts. They work best on small screws or screws used in electrical grounding. External use lock washers (also called star washers) have teeth made to bite into the bearing surface.
Where do you connect the ground wire on a washing machine?
There is a ground wire under the main top attached to the galvanized metal trim towards the back of the washer. The power cord is plugged into a wall outlet.
Can I use a washer as a ground?
Star washers use uneven surfaces to increase friction between a fastener and a grounding cable. This keeps the fastener tight and maintains positive contact between the grounding wire or cable and the grounding stud.
What is a grounding bolt?
Grounding Screws Connect grounding wires to steel structures, fence posts, and transformers. These screws can also tap one or two cables from a bus bar.
Why is there a ground wire on my washing machine?
In the event of a malfunction or breakdown, earthing will reduce the risk of electrical shock by providing a path of least resistance for electric current. This washer is equipped with a cord having an equipment-earthing conductor and an earthing plug.
Do you need to earth a washing machine?
If you would touch the washing machine, you would be electrocuted. Unless you have a grounding that is. This earthing will send the electric current down to the earth and prevents tragic accidents in this way. You can recognize the grounding conductor by its yellow-green isolation.
How do you ground a star washer?
How to Use Grounding Star Washers
- Align the hole of a grounding cable with the hole for a threaded fastener, or slide the grounding cable over a grounding stud.
- Slide a star washer onto a fastener or an installed grounding stud.
- Apply thread locking solution to the threads of the fastener or stud.
When are Star washers acceptable to use with a grounding?
As far a star washers are concerned, they are not specifically called out as being required in any of the UL/IEC standards I have tested to but they are “highly recommended” by all of the UL/ETL/TUV safety engineers I have dealt with. And yes, I have dealt with safety engineers from all three of these NRTLs (Nationally Recognised Test Laboratories)
What kind of screws can you use in a star washer?
Internal teeth dig into the screw head while the smooth outside edge won’t snag objects. Use with fasteners that have small heads, such as fillister and cheese head screws. The combination of internal and external teeth boosts gripping power to maintain a tight hold and provide more vibration resistance than other tooth lock washers.
How big is an external star lock washer?
This is a quality stainless external star lock washer assortment kit that includes to most popular sizes. This kit contains: 50pcs #4, 50pcs #6, 50pcs #8, 50pcs #10, 50pcs #12, 50pcs 1/4″, 50pcs 5/16″, 50pcs 3/8″, 25pcs 1/2″, 1pc Tuff Storage Container Batteries Included? Would you like to tell us about a lower price?
What makes a conical washer a star washer?
Also known as conical washers, these have a slightly cupped shape that gives them spring-like flexibility to grip tighter than split and tooth lock washers. They minimize loosening from wear, temperature changes, and vibration. These washers have a locking feature to resist loosening from vibration.