Lights dimming

[Ross1]

Hi folks, why are the lights dimming when the shower is turned on?

 

[Pete999]

Hi folks, why are the lights dimming when the shower is turned on?

Voltage drop

 

[Marvo]

Have you tested the circuits in question? Have you visually inspected all terminations including upstream? I'd start with those.

 

[Ross1]

Checked all terminations at CU and on shower circuit. Voltage drop at cu is 10V. I also noticed when the ring main was turned on that the lights dimmed, but not as much as when the shower is turned on

 

[Ross1]

I only had half hour to investigate, but must report back to landlord

 

[telectrix]

pedal faster when shower is used.

 

[7029 dave]

As Pete said VD

 

[Pete999]

As Pete said VD

What the cable has a STD lol

 

[UKMeterman]

Check voltage is within statutory (253 - 216) volts with the shower turned on. Check all up stream terminatations, check for signs of buring. If the connections are ok and still outside the limits, phone the DNO, on a back of an envlope calculation 300 watts are being lost in that resistance. If this is a new problem phone the DNO.

 

[Ross1]

Thanks mate, I will revisit and check all terminations.

 

[Dave OCD]

Also if it's one of those ridiculous 10.5 -10.8kW showers I'd say it's perfectly normal to notice the lights dimming slightly when it fires up.

 

[Flanders]

Could be a loose neutral in the main meter or cut out . Has rhe meter been change resently

 

[DPG]

How old is the house? Loose neutral in joint box under pavement maybe. Daz

 

[andy riva]

sudden unrush of current from an electric shower can cause sudden dip of lights. The same with all heavy loads such as a kettle.

Hope this helps.

 

[DPG]

sudden unrush of current from an electric shower can cause sudden dip of lights. The same with all heavy loads such as a kettle.

Hope this helps.

But shouldn't be a massive dip unless there is a loose connection somewhere in the supply. Daz