Labeling Electrical

cable label

I like it. It's not rocket science. (Those systems get REALLY complex, I know.)

This in my opinion is a really good way to do it. It is almost how my company does it, verbatim. The only difference is, we do not typically have dedicated lighting panels. We typically have lighting located on our power panels along with receptacles. All of our panels are also labeled 120/208 WYE or 277/480 WYE etc. on the top of the panel face. All of our receptacles and subpanels are labeled with the panel and circuits that feed them. Our hardwired equiment is of course labeled the same way, on the enclosure, where the conductors enter the device.

In addition to labelling panels,cables and conduits should have coloured markers for different applications-power,telephone,data,music/PA,fire protection etc

Thanks for your comment, KJK/USA!

Your input has been very helpful!

About the same as other posts:

L for lighting

DP for distributed power (Air Handlers)

P for power outlets

MTD for main tech distribution

TP for tech power

MCC for motor control cabinets

Panel and subpanels are generational:

MTD-1 feeds TP-1, TP-2, TP-3, etc

TP1 feeds TP1-1, TP1-2, TP1-3, etc

P1 feeds P1-1, P1-2, P1-3, etc

P1-1 feeds P1-1A, P1-1B, etc

Simple, no?

Wayne:

There are several "one-stop sop" solutions. For example, check out the "Brady Corportion" website. They produce a broad array of industrial / commercial labelling products...including both on-demand and pre-printed labels, pipe wraps / markers/ placards, Lock-out / Tag-out products, etc.

They also offer "turn-key" labelling services...where they will come into your facility, provide an assessment of your needs, and provide all of what you need.

No current affiliation...but I did work there many years ago.

Regards!

1_You may use some coloured labels, according to the level of voltage. I don't know colours used in Canada. Generally, I used to use yellow for 415/240 VAC, Brown for 5500/6000 VAC, and black above. I think you could use brown ( with white letters) for above 415VAC. I don't identify switchgear under 1000 VAC: it's too expensive. And above, you have to identify each phase and generally each bus, even for earth.

2_I know it exists for the instrumentists a standard to catalog breakers, disconnectors and so on. Its name is ISA standard (for petroleum). Generally I used to label switchgear above 1000 VAC, not under. I think ISA standard would be enough.

3_You may use any type of labelling if everyone who is in relation with electrotechnics has a key map or a list to identify switchgear (i.e. in a crystal pocket fastened to Swgr)

4_If these solutions would not be satisfying, you have to make a draft of all your installation (OK...!) and define some labels based on location and use of swgr. Example: Low Voltage Main Switchgear would be labelled LVAC for 415 VAC and under and HVAC for above 415 VAC. After you enumerate each breaker beginning by the main one (the one which has the biggest rating) and you go down to the smallest one, etc...

5_Each label of each equipment must have the same colour than its source of swgr.

6_Best way is to remake or re-find the installation drawing where equipment must be conveniently labelled. If not, GOOD COURAGE..

Thanks everyone for responding!