Hello Richard,
You mentioned that the cable contains hazardous voltage. In order to
determine what type of interconnecting cable is suitable to use, you need to
find out whether or not the cable in question is supplied by a limited power
source (LPS) or NEC Class 2.
For non-LPS applications, if the cable is less than 3.05 m in length, a
suitably rated "jacketed appliance wiring material (AWM) is required. Also,
power supply cords described in EN/UL 60950:2000 Annex NAE (3.2.4) and Table
NAE.4 can be used. You mentioned Style 2464. Style 2464 is a jacketed AWM,
rated 300 V 80 C. As long as the length of the cable is maximum 3.05 m and
marked VW-1 or FT-1 (flammability rating), it should be suitable.
For non-LPS applications, if the cable exceeds 3.05 m in length, then a Listed
cable designated in the NEC (e.g. Type DP) is needed.
For LPS applications, the only requirement is that the cable should be AWM,
maximum 3.05 m in length and marked VW-1 or FT-1. There are no requirements
in terms of Style, temperature and voltage ratings.
Hope this helps.
Rgds,
Sylvia
From: richwo...@tycoint.com [mailto:richwo...@tycoint.com]
Sent: Wednesday, June 11, 2003 5:59 AM
To: emc-p...@majordomo.ieee.org
Subject: FW: Interconnecting Cables
I didn't receive any comments at all, so I am trying again. Any comments
would be welcomed.
> -Original Message-
> From: WOODS, RICHARD
> Sent: Tuesday, June 03, 2003 10:58 AM
> To: 'emc-pstc'
> Subject: Interconnecting Cables
>
> I need to determine the robustness requirements for the outer insulation
> of an interconnecting cable for ITE when the cable contains hazardous
> voltages and when the cable will be in the same physical environment as
> the power cord. Clause 1.5.5 of EN 60950:2000 says that the cable must
> comply with the relevant requirements of the standard, but those
> requirements are not further specified in the standard. One might infer
> that the insulation must be no lighter than the requirements for power
> cords specified in Clause 3.2.5, but that is not clear. In particular, I
> need to determine if properly voltage rated computer interconnect cables
> (e.g., UL style 2464) are sufficiently robust to comply with the standard.
> Any suggestions on acceptable cable types/styles would be appreciated.
>
> Richard Woods
> Sensormatic Electronics
> Tyco International
>
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