Cables through drilled joists

[Wonderwall]

Hello peeps, just looking for clarification on my practices here .
In the past , I have taken many cables through the same hole drilled in a joist . Mostly lighting and smoke detector cables , not heavily loaded ones , but on site , time is sometimes critical.
Have I followed " normal practice " here , or have I committed a serious bad practice?
Thanks in advance for honest replies .

 

[diditrain]

Normal practice, as long as you don't try to put too many through the same hole, resulting in damage to the cable sheath.

 

[robd]

Pretty standard I'd say..within reason anyway. If you are ramming them in so the hole is totally full I'd be drilling a line of 2 holes

 

[davesparks]

If you drilled a separate hole for each cable the joist would tear down the middle like a book of stamps.

 

[Wonderwall]

Thanks folks,

 

[1Justin]

Draw new one in very slowly if it's getting a bit close. You can build up heat and melt insulation off the fixed cable quite easily.

 

[telectrix]

Draw new one in very slowly if it's getting a bit close. You can build up heat and melt insulation off the fixed cable quite easily.

and a squirt of washing up liquid helps prevent damage. also you will have the benefit of clean cables.

 

[mossep]

Always feed new cables un underneath the others if pulling through from below, or on top if pulling through from above, it will help reduce friction burns to the cable sheath

 

[JK-Electrical]

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