Fill in the blanks with the correct answers. New requirements for marking of cable trays apply when the cable trays contain ____________ conductors [(230.44)], or conductors rated at more than _________ [(392.18(H)].
There is a new paragraph in Sec. 230.44 that requires cable trays to be affixed with a permanent label with the wording "Service-Entrance Conductors" where the cable tray supports service-entrance conductors. The labels shall be located as to be clearly visible after the installation.
There is also a new paragraph in Sec. 392.18(H) that requires cable trays containing conductors rated at more than 600V to be affixed with a warning notice carrying the wording "DANGER – HIGH VOLTAGE – KEEP AWAY" in a readily visible position with a spacing not to exceed 10 ft.
ANSI Z-535.2 or ANSI Z-535.4 may provide additional guidelines for the warning notice.
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