Allied Encyclopedia: ANSI/NEMA HP 8-2013

Allied EncyclopediaWhat’s new in ANSI/NEMA HP 8-2013?

Hopefully, your summer this year was exciting enough that the news of revisions to the ANSI/NEMA HP 8-2006 standard flew completely under your radar.  If you did miss its release in July, don’t worry—not much has changed. The major revisions are in the reference section. A reference to ANSI/NEMA WC 67-2012 Standard for Uninsulated Conductors Used in Electrical and Electronic Applications was added and some internal references were removed.

HP 8 Standard Summary

But while we are here, let’s just refresh ourselves on the basics of the HP 8 standard.

Scope- The scope defines specific requirements for cross-linked, modified polyolefin insulated solid and stranded wire designed for the internal wiring of high-reliability electrical and electronic equipment. It covers 600 V (Types LS, ZHDM, ZHDH and ZH) and 1000 V (Type ZHX) wire and permits continuous conductor temperature ratings of -40°C to 90°C, 105°C or 125°C with either tin-coated or silver-coated conductors. These hook-up wire types are used when the following attributes are required:

  • Moderate temperature resistance
  • Low temperature resistance
  • Good dielectric constant (Type ZHDM and ZHDH)
  • Moderate dielectric constant (Type LS)
  • Good flexibility and flex life when stranded conductors are used
  • Solder iron resistance for easier solder terminations without potential damage
  • Low smoke (Types LS, ZHDM, ZHDH, ZH, ZHX)
  • Zero halogen (Types ZHDM, ZHDH ZH, ZHX)
  • Low toxicity (Types LS, ZHDM, ZHDH, ZH, ZHX)
  • Low acid gas generation (Types LS, ZHDM, ZHDH, ZH, ZHX)

Recommended Uses of Wire Types

Type LS replaces M16878/36 and is intended for use in 600 V, medium temperature applications.

Type ZHDM and ZHDH contains zero halogens and is intended for use in 600 V or less signal applications where a good dielectric constant is required to meet the specific electrical properties in low temperature (90°C) applications.

Type ZH is also halogen free and is intended for use in 600 V, medium temperature (125°C) applications.

Type ZHX is intended for use in 1000 V, medium temperature (125°C) applications and contains zero halogens.

Part Identification Number (PIN)- Understanding the breakdown of a part number can tell you a lot about the part itself. This is how and HP8 part number is structured:

HP8—(Type)-(Conductor material)(AWG)(Strands)(Color)

The type will indicate the kinds of attributes listed in the section above, but by consulting the four charts below, you can also determine the part’s conductor material, AWG size, stranding and colors. For example, the breakdown of part number HP8ZHX-BDB tells you that it is Type ZHX, Tin-Coated Copper, 26 AWG and 7 strands.

Table 1—1 Conductor Material and Coating

Letter

Conductor Material & Coating

B

Tin-Coated Copper

S

Silver-Coated Copper

Table 1—2 AWG Nominal Conductor Size

AWG

Letter

AWG

Letter

32

A

16

J

30

B

14

K

28

C

12

L

26

D

10

M

24

E

8

N

22

F

6

P

20

G

4

R

18

H

2

S

  

Table 1—3 Number of Strands

Letter

Number of Strands

A

1

B

7

E

19

G

37

J

65

L

133

M

168

N

259

P

665

R

817

S

1045

T

1330

 

Table 1—4 Color

Color

Number Designator

Black

0

Brown

1

Red

2

Orange

3

Yellow

4

Green

5

Blue

6

Violet

7

Gray

8

White

9

That’s ANSI/NEMA HP 8 in a nutshell, but if you’d like to see for yourself what’s new, check out Section 1.2 of the HP 8 complimentary document. This is where the majority of the revisions are found.

If you are looking for NEMA HP8 cables, or have any other mil spec or NEMA wire and cable requirements, email customerservice@awcwire.com.

About awcwire
Allied Wire & Cable is a value-added manufacturer and distributor of electrical wire and cable, tubing, and more. We are a family owned and operated company, serving a wide range of industries, including the military, automotive, aerospace, and telecommunications markets. Allied is headquartered in Collegeville, PA. Additional locations can be found across the US, in Merrimack, NH, Tampa, FL, Pewaukee, WI, and Las Vegas, NV. For more information on Allied, visit our main website at www.awcwire.com.

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s

%d bloggers like this: