jea48
Responses from jea48
| Main vs. sub panel for dedicated lines lowrider574,353 posts 06-03-2021 3:04pm Question: why are two ground rods used?Hi @lowrider57 From one of my above posts: 06-02-2021 8:24am Minimum required number of driven ground rods for the main service panel technically is one, * IF *... | |
| Main vs. sub panel for dedicated lines For a sub panel in an out building, separate building, a ground rod (Grounding Electrode) is required. The ground rod is connected to the equipment ground bar in the sub panel creating a grounding electrode system for the separate building.For a s... | |
| Main vs. sub panel for dedicated lines lowrider574,352 posts 06-02-2021 10:37am @jea48 @mesch I have a new service panel and a subpanel. When the sub was installed, a second ground rod was added. Two different electricians installed the panels, both said two ground rods were required... | |
| Main vs. sub panel for dedicated lines And also the fact that I may not need the sub connected to ground rod. Like I said I would not recommend it. It will not improve the sound of your audio system. In fact it may degrade the sound. Lightning loves an auxiliary grounding electrode th... | |
| Main vs. sub panel for dedicated lines Just to add to why a sub panel(s) may be needed. For one because a 42 circuit main panel (If main breaker is in the panel 40 spaces/circuits for branch circuits) isn’t enough spaces/circuits for all the circuits need for the home. I have a sub pa... | |
| Main vs. sub panel for dedicated lines Each panel will have an 8’ ground rod, check with electrician for code. If the sub panel is located in the same building as the main service panel a ground rod is not required for the sub panel. Yes per the NEC a driven ground rod can be connecte... | |
| Help! Cure for transformer hum? Items that can cause DC on the mains are, Dimmers, Hair Dryers, portable electric heaters, LED lights, CFL lights, electronic ballasts, and cheaply made switch mode power supplies. Here is a quote from Nelson Pass: Nelson Pass If you are experie... | |
| Help! Cure for transformer hum? @ snilf I don’t think your problem is DC offset on the mains. The power transformer in the NAD 7600 looks like an EI, not a Toroidal. As a rule an EI is not affected by DC offset on the ac Mains.I would carry the receiver to the kitchen. Place it... | |
| Fuse Upgrade to Ceramic not glass EDIT to my above post: https://www.hubbell.com/hubbell/en/Products/Electrical-Electronic/Wiring-Devices/Straight-Blade-Devi... Picture shows the backstrap non plated brass.Specs say: Clamping Plate Nickel plated brass You can still find/buy this o... | |
| Fuse Upgrade to Ceramic not glass Here is a good cheap duplex receptacle.https://www.ebay.com/itm/113707109589 New US $8.99 + shipping. Contact the seller and make sure what is pictured is exactly what you are buying.FYI: The outlet has a brass non plated backstrap. Internal conta... | |
| Fuse Upgrade to Ceramic not glass I doubt you will hear any difference changing the glass fuse to a ceramic.Two places that could improve the sound of the AVR is the power cord and the wall duplex receptacle.Especially if the wall outlet is the original cheap 79 cent residential g... | |
| So you think wire conductors in cables are directional? Think again... clearthinker360 posts 05-16-2021 6:24am " Electric charges typically flow as slowly as a river of warm putty. And in AC circuits, the moving charges don’t move forward at all, instead they sit in one place and vibrate." Had Edgew... | |
| Dedicated AC line - Contractor wants to use BX instead of romex CORRECTION: jea48 said: IF MC (Metal Clad) cable is allowed it is recommended over AC cable for branch circuit wiring to feed audio/video equipment. MC is even recommended over MN (Romex) cable. That should read. MC is even recommended over NM... | |
| Dedicated AC line - Contractor wants to use BX instead of romex As a result the most likely best path forward is to use the hi purity copper in conduit. It’s just 10-2 with ground NM (Romex) cable that has been sent out and cryoed. (Not by the manufacturer). I wonder what the electrical inspector would say a... | |
| Dedicated AC line - Contractor wants to use BX instead of romex I would not want/use regular AC armor cable, (commonly called BX cable), to feed audio equipment. If AC must be used spec AC HCF only. Example of regular and HCF AC cable: https://www.afcweb.com/cross-reference/comparison-ac-mc-cables/ Look at t... |