UL 514B-2020 pdf free download

UL 514B-2020 pdf free download.Conduit , Tubing , and Cable Fittings.
This requirement does not apply to a CONDUIT BODY having an internal length (measured as shown in Figure 12) that is equal to or greater than the dimensions specified in Table 40. See Clause 7.10.4.
5.7.1.4 A CONDUIT BODY that does not change the direction of wiring passing through it shall have a length not less than eight times the trade size of the connected largest tubing or conduit. The length shall be measured inside the CONDUIT BODY from the end stop of the conduit HUB, away from the center of the body, to an equivalent point on the conduit HUB Ofl the opposite wall, or for a CONDUIT BODY having a single raceway entry, to the opposite wall. See Figure 12.
Note: Measurements expressed as multiples of trade sizes are to be determined by converting the trade size of the raceway (not the metric designator) to a value expressed ii millimeters, Example: 1(2 trade size X 8 4 4 inches = 101.6 mm.
A shorter CONDUIT BODY complies when it is investigated for installation of a combination of conductors that are less than the specified maximum fill for the largest conduit size that the CONDUIT BODY will accommodate. See Clause 7.10.4.
5.7.1.5 A COi’iUIT BODY constructed to enable a change in the direction of the axis of a tubing or conduit system (see Figure 12) shall have a distance inside the body between each tubing or conduit entry and the entry hub on the opposite wall of the body intended to enclose a common conductor not less than that specified in a) or between each tubing or conduit entry and the opposite wall not less than the sum of a) and b)(see note to Clause 5.7.1.4):
a) six times the trade size of the largest tubing or conduit for which the body is intended, and b) the sum of the diameters of all other tubing or conduit entries in the same wall of the body.
The distance shall be measured from points located at each of the raceway entries where the axis of the raceway passes through the plane of the end stop of the conduit HUB to the inside surface of the cover. See Figure 12.
5.7.1.6 A CONDUIT BODY having smaller dimensions than as specified in Clause 5.7.1.5 shall:
a) comply with the wire pull test in Clause 8.4 for installation of a combination of conductors. including 4 AWG (21.2 mm2) or larger, that is less than the specified maximum fill for the largest conduit size that the CONDUIT BODY is intended to accommodate. See Clause 7.10.4. or
b) have a radius to the curve of its centerline not less than the radius to the center of the tube as indicated for an elbow in UL 6, C22.2 No. 45.1 or NMX-J-534-ANCE. See Clause 7104A,
5.7.1.7 A CONDUIT BODY having a raceway entry in the wall opposite the removable cover specified in
Clause 5.7.1.3(a) shall have a distance from the cover to the opposite wall not less than that specified in
Table 41.UL 514B-2020 pdf free download.